Re: How to Refresh the UserControl not the Whole Page In ASP.net - ASP.NET Discussion Boards

How did you call the refresh method in parent page. Have you used that metohd in any page event such us click event of a button in the page where the user control is used?.

Good morning Ramesh

This is what i did

i made sure that the name is Unique and called it "Refresh_Control" and in the Host page,am refreshing from a Button like this

MyControl.Refresh_Contro();

And nothing Happens

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

I just want to confirm that the user control's Refresh_Control() is reached when it called in the button click event. Put a break point in the first line of Refresh_Control method and see whether the grid is bound.

Yes it get called. More info is that the usercontrol has a Gridview that is binded with a SQldatasource Control

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

So the refresh method in user control is get called in parent page but nothing happens.
Can you post the code in the user control and the parent page including code in Page_load and binding your grid.

Becuase it is working good in my applications.

Thanks for your Help

and this is the code Behind

for the Usercontrol

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.Drawing;


public partial class ActivityCtrl : System.Web.UI.UserControl
{
    public static int MinimumActvWidth = 80;

    public System.Web.UI.WebControls.Button SaveButton()
    {
        return btnSaveStructure;
    }

    ///*Enabling Partial */

    //[DefaultValueAttribute(true)]

    //[CategoryAttribute("Behavior")]
    
    //public bool EnablePartialRendering { get; set; }
    
    public Boolean Enabled
    {
        set
        {
            btnSaveStructure.Enabled = value;
            gridviewContacts.Enabled = value;
        }
    }

    //public UpdatePanelUpdateMode UpdateMode
    //{

    //    get
    //    {
    //        return this.UpdatePanel1.UpdateMode;
    //    }
    //    set
    //    {
    //        this.UpdatePanel1.UpdateMode = value;
    //    }


    //}

    //public void Update()
    //{
    //    this.UpdatePanel1.Update();
    //}


    public int SubjectID
    {
        set
        {
            hfmodlID.Value = value.ToString();  // when the subjectId is set refresh 
            LoadSubjectStructure(SubjectID);    // redisplay the subject structure for the selected subject            
        }
        get
        {
            if (hfmodlID.Value == "")
            {
                hfmodlID.Value = "0";
            }
            return Convert.ToInt32(hfmodlID.Value);
        }
    }



    public string ActivityViewMode
    {
        // View either the activity properties or its resources/tags
        // valid options: "Activity" or "Tags" or "Venues" or "Staff"
        set
        {
            lblViewMode.Text = value;
            switch (value)
            {
                case "Activity": hfViewMode.Value = "0";    // this will set the ActiveViewIndex of the Activity Object Type to show e.g. ActvBox, ActivityResource or ActvStreams
                    break;
                case "Streams": hfViewMode.Value = "2";
                    break;
                default: hfViewMode.Value = "1";    // venues, staff, tags etc
                    break;
            }
            // Hide controls or adjust controls for the mode. The Activity Box will be displayed for actvity
            // and ActivityResources for resources/tags (this is handled automatically by the page)
            if (ActivityViewMode == "Activity")
            {
                menuActivityNameViewMode.Visible = true;
            }
            else
            {
                menuActivityNameViewMode.Visible = false;
            }
        }

        get
        {
            return lblViewMode.Text;
        }

    }

    public string ActivityNameViewMode
    {
        // view either the activities group name or the abreviated code for the activity
        set
        {
            menuActivityNameViewMode.SelectedItem.Selected = false;
            menuActivityNameViewMode.FindItem(value).Selected = true;
        }
        get
        {
            return menuActivityNameViewMode.SelectedValue;
        }
    }

    // in the case of streams tell the activity control to view keep apart streams or normal streams
    public Boolean KeepApart
    {
        set { hfKeepApart.Value = value.ToString(); }
        get { return Convert.ToBoolean(hfKeepApart.Value); }
    }

    public string ActivityBoxViewMode
    {
        get { return menuActivityNameViewMode.SelectedValue; }
    }

    // Return a list of selected contact types as an xml string from a grid
    public string SelectedContactsXml
    {
        get
        {
            string xml = "";
            xml = CommonFunctions.ReturnIdsInXmlForGridView(gridviewContacts);
            return xml;
        }
    }

    // Properties to expose values of control to main page
    public string SelectedActvs
    {
        // return an Xml string
        get { return BuildXMLforSelectedActvs(); }
        // populate the textbox with the selected activities in the format
        // "=actvid;"
        set
        {
            txtbxActvs.Text = value;

            HighlightSelectedActvs();
        }
    }

    public string SubjectTags
    {
        get
        {
            return lblSubjTags.Text;
        }
        set
        {
            lblSubjTags.Text = value;
        }
    }

    protected void Page_Init(object sender, EventArgs e)
    {
        // The SqlDataSources must connect to the database the user has logged into            
        // SqlDataSources within templates have this change made on their init method
        CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref SqlDataSourceContacts);
        CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref SqlDataSourceMaxActvs);
        CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref SqlDataSourceActvDuration);

        // the structure must be redrawn in the Page_Init otherwise it
        // wont be visible on certain effents ( ViewState ) 
        if (!Page.IsPostBack)
        {
            if (Session["TTBL_TYPE"].ToString() != "CLASS")
            {

                gridviewContacts.Columns[1].HeaderText = "Paper Type";
                menuActivityNameViewMode.FindItem("Name").Selected = true;
                menuActivityNameViewMode.Enabled = false;
            }
        }




    }



    protected void Page_Load(object sender, EventArgs e)
    {
        string clientscript = "";

        // make available to all subcontrols a variable with the client ID of the textbox in which to store the selected activity IDs
        clientscript = "var txtbxActvClientID = '" + txtbxActvs.ClientID.ToString() + "'; ";
        // assign the current list of selected activities to the list for JavaScript here
        //clientscript += "var ActivityList = String(\"" + txtbxActvs.Text + "\"); ";  
        ClientScriptManager cs = Page.ClientScript;
        cs.RegisterClientScriptBlock(this.GetType(), "txtbxlookupid", clientscript, true);

        // if a subject is not selected hide the controls/actions a user has 
        if (!Page.IsPostBack)
        {
        }
        HighlightSelectedActvs();
        //LoadSubjectStructure(SubjectID);
    }


    public void LoadSubjectStructure(int subjectID)
    {
        // load the subject structure for the selected subject and store it in a session variable        
        SubjectStructure Subj = new SubjectStructure();
        Subj = Subj.GetSubjectStructure(subjectID);
        //Session["SubjStruct"] = Subj;        

        lblSubjectDescription.Text = Subj.Descr;

        // Show the subject tags
        PopulateSubjectTags();
    }
    /// <summary>
    /// This Method will Refresh the userControl, by Rebinding it
    /// </summary>
    public void RefreshUC()
    {
        string clientscript = "";

        // make available to all subcontrols a variable with the client ID of the textbox in which to store the selected activity IDs
        clientscript = "var txtbxActvClientID = '" + txtbxActvs.ClientID.ToString() + "'; ";
        // assign the current list of selected activities to the list for JavaScript here
        //clientscript += "var ActivityList = String(\"" + txtbxActvs.Text + "\"); ";  
        ClientScriptManager cs = Page.ClientScript;
        cs.RegisterClientScriptBlock(this.GetType(), "txtbxlookupid", clientscript, true);

        // if a subject is not selected hide the controls/actions a user has 
        if (!Page.IsPostBack)
        {
        }
        HighlightSelectedActvs();
        LoadSubjectStructure(SubjectID);
    
    }

    public void DisplaySubjectStructure()
    {
        gridviewContacts.DataBind();    // on DataBound colours are set and selected actvs highlighted        
    }

    public void SetContactRowColors()
    {
        // Calculate a color for each different contact type
        double hue;
        int TypID = 0;
        string colorstr = "";

        // go through the grid view and change the row color to that of the contact type
        foreach (GridViewRow row in gridviewContacts.Rows)
        {
            DropDownList drplstCntcTyp = (DropDownList)row.FindControl("drplstCntcTyp");
            if (drplstCntcTyp.SelectedValue != null && drplstCntcTyp.SelectedValue != "")
            {
                TypID = Convert.ToInt32(drplstCntcTyp.SelectedValue);


                hue = (TypID - 1) * 50 % 360;  // (Subj.contact[i].TypeID * 360) / 10 % 360;	// use the total number of subjects				        
                colorstr = CommonFunctions.HSVtoRGB(hue, 0.3, 1.0);	// hsv
                //bordercolor = CommonFunctions.HSVtoRGB(hue, 0.7, 1.0); //bordercolor = HSVtoRGB( hue, 0.7, 0.95 );
                //row.BackColor = System.Drawing.ColorTranslator.FromHtml(CommonFunctions.HSVtoRGB(hue, 0.3, 1.0));
                // For streams only color the dropdown lists for the contacts
                //if (ActivityViewMode != "Streams")
                //{
                row.BackColor = System.Drawing.ColorTranslator.FromHtml(colorstr);
                //}                
                //row.BorderColor = System.Drawing.ColorTranslator.FromHtml(bordercolor);            
            }
            drplstCntcTyp.BackColor = System.Drawing.ColorTranslator.FromHtml(colorstr);

            DropDownList drplstDuration = (DropDownList)row.FindControl("drplstDuration");
            drplstDuration.BackColor = System.Drawing.ColorTranslator.FromHtml(colorstr);
            drplstDuration.BorderColor = System.Drawing.ColorTranslator.FromHtml(colorstr);

        }

    }

    public void HighlightSelectedActvs()
    {
        string actvstr = "";
        int actvID = 0;
        bool selected = false;

        // parse through the activities and highlight those with ids in the list of selected activities
        foreach (GridViewRow row in gridviewContacts.Rows)
        {
            // get a handle to the activities
            DataList datalistActvs = (DataList)row.FindControl("datalistActvs");
            if (datalistActvs != null)
            {
                foreach (DataListItem dlitem in datalistActvs.Items)
                {
                    switch (ActivityViewMode)
                    {
                        case "Activity":
                            ActivityBox actvbox = (ActivityBox)dlitem.FindControl("ActivityBox1");
                            actvID = actvbox.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            // if the list of actvIDs contains this activities ID then select the activity
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvbox.Selected = selected;

                            break;
                        case "Streams":
                            ActvStreams actvstrm = (ActvStreams)dlitem.FindControl("ActvStreams1");
                            actvID = actvstrm.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvstrm.Selected = selected;
                            break;
                        case "Staff": // venues, staff
                            ActivityResource actvstaff = (ActivityResource)dlitem.FindControl("ActivityResource1");
                            actvID = actvstaff.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvstaff.Selected = selected;
                            break;
                        case "Venues":
                            ActivityResource actvres = (ActivityResource)dlitem.FindControl("ActivityResource1");
                            actvID = actvres.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvres.Selected = selected;
                            break;
                    }   // end switch

                }  // end foreach
            } // end if
        }

    }

    public string BuildXMLforSelectedActvs()
    {
        string xmlSelActvs = "";
        string xmlactvs = "";

        xmlSelActvs = "<Root>";
        xmlactvs = txtbxActvs.Text;
        // txtbxActvs.Text keeps a list of selected activities
        // in the format "=actvid;" -- put these into xml is just a matter of replacing the "=" and ";" with
        // the appropriate xml string
        xmlactvs = xmlactvs.Replace("=", "<Actvs><ID>");
        xmlactvs = xmlactvs.Replace(";", "</ID></Actvs>");
        xmlSelActvs += xmlactvs;

        xmlSelActvs += "</Root>";

        return xmlSelActvs;
    }

    protected void btnSelectNone_Click(object sender, EventArgs e)
    {
        // clear the selection of activities
        txtbxActvs.Text = "";

        HighlightSelectedActvs();
    }

    protected void menuActivityBoxViewMode_MenuItemClick(object sender, MenuEventArgs e)
    {
        gridviewContacts.DataBind();    // on DataBound colours are set and selected actvs highlighted
    }

    public void PopulateSubjectTags()
    {
        PopulateLabelWithTags(ref lblSubjTags, SubjectID, "Subject");
    }

    public void PopulateLabelWithTags(ref Label lbl, int objid, string TagType)
    {
        lbl.Text = "";
        lbl.ToolTip = "";

        // look up the venues for the specific activity
        string sql = "";

        DataSet ds = new DataSet();

        sql = sql + " select tbl_tag.id, tbl_tag.descr  ";
        sql = sql + " from tbl_tag ";
        sql = sql + " inner join mtm_obj_tag mot on mot.tag = tbl_tag.id  ";
        sql = sql + " inner join tbl_tag_typ tagtyp on tagtyp.id = tbl_tag.typ ";
        sql = sql + " where mot.objID = " + SubjectID.ToString() + " and ltrim(rtrim(tagtyp.descr)) = '" + TagType + "' ";
        sql = sql + " order by tbl_tag.descr ";

        ds = CommonFunctions.ReturnResultSet(sql);
        // the first result set will be used to populate the grid (i.e. Table[0])
        if (ds.Tables[0].Rows.Count > 0)
        {
            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
            {
                // if there are 2 or less lecturers assigned show them
                if (i < 2)
                {
                    lbl.Text += ds.Tables[0].Rows[i]["descr"].ToString() + "\n";
                }
                else
                {
                    if (i == 2)
                    {
                        lbl.Text += "more...";
                    }
                }
                // fill the tooltip with a list of all the staff
                lbl.ToolTip += ds.Tables[0].Rows[i]["descr"].ToString() + "\n";
            }
        }

    }   // ...PopulateLabelWithTags

    protected void drplstActvViewMode_SelectedIndexChanged(object sender, EventArgs e)
    {
        ActivityViewMode = lblViewMode.Text;
        gridviewContacts.DataBind();    // on DataBound colours are set and selected actvs highlighted
    }

     protected void gridviewContacts_DataBound(object sender, EventArgs e)
    {
        // Set the row colors for each contact type after the gridview is populated from the database
        SetContactRowColors();
        HighlightSelectedActvs();

    }

    protected void btnSaveStructure_Click(object sender, EventArgs e)
    {
        string sql = "", CntcXml = "", ActvXml = "";

        SubjectStructure Subj = new SubjectStructure();
        Subj = Subj.GetSubjectStructure(SubjectID);

        Subj.contact = null;

        // Parse through the ActivityControl picking up the values and save to the database
        int CntcID = 0, actvID = 0, students = 0;
        int CntcTyp = 0, DurationCntc = 1, DurationActv = 1;
        string grpname = "";

        // build an xml string for the changes to the contacts and then also for the activities
        foreach (GridViewRow row in gridviewContacts.Rows)
        {
            CntcID = Convert.ToInt32(gridviewContacts.DataKeys[row.DataItemIndex].Value.ToString());
            // get the type and duration            
            CntcTyp = Convert.ToInt32(((DropDownList)row.FindControl("drplstCntcTyp")).SelectedValue);
            DurationCntc = Convert.ToInt32(((DropDownList)row.FindControl("drplstDuration")).SelectedValue);
            // update the contacts individually            
            CntcXml += "<Contact><ID>" + CntcID.ToString() + "</ID><CntcTyp>" + CntcTyp.ToString() + "</CntcTyp><Duration>" + DurationCntc.ToString() + "</Duration></Contact>";

            // get the activity details
            DataList datalistActvs = (DataList)row.FindControl("datalistActvs");
            if (datalistActvs != null)
            {
                foreach (DataListItem dlitem in datalistActvs.Items)
                {
                    ActivityBox actvbox = (ActivityBox)dlitem.FindControl("ActivityBox1");
                    actvID = actvbox.ActvID;
                    students = actvbox.Students;
                    DurationActv = actvbox.Duration;
                    grpname = actvbox.GrpName;

                    if ((DurationCntc > 1) && !(DurationActv > 1))
                    {
                        DurationActv = DurationCntc;
                    }

                    ActvXml += "<Actv><ID>" + actvID.ToString() + "</ID><Students>" + students.ToString() + "</Students><Duration>" + DurationActv.ToString() + "</Duration><GrpName>" + grpname + "</GrpName></Actv>";
                }
            }

        }
        // within this sp the contact numbers are adjusted after the update
        sql = "sp_Contacts_Update '<Root>" + CntcXml + "</Root>', " + SubjectID.ToString() + " ";
        CommonFunctions.ExecuteStoredProc(sql);

        string xm = "class";
        if (Session["TTBL_TYPE"].ToString() != "CLASS")
        {
            xm = "XM";
        }
        sql = "sp_Activities_Update '<Root>" + ActvXml + "</Root>', '" + ActivityNameViewMode + "', '" + xm + "' ";
        CommonFunctions.ExecuteStoredProc(sql);

        DisplaySubjectStructure();  // refresh the page

        CommonFunctions.setDataModifiedTime();
    }


    //----------------------------------------------------------------------------------------------------------
    /// <summary>
    ///     Setup an event handler to handle subject change. The containing page will do certain processing 
    ///     when this event is fired.
    /// </summary>
    /// bubble through the event
    public event EventHandler SubjectChange;

    protected void OnSubjectChange(EventArgs e)
    {
        if (SubjectChange != null)
        {
            SubjectChange(this, e);
        }
    }
    //----------------------------------------------------------------------------------------------------------

    private void StructureChanged(object sender, EventArgs e)
    {
        // When a subject is selected first get the subject structure from the database
        // this.LoadSubjectStructure(SubjectSelector1.SelectedSubjectID);    // reload the structure
        //        Response.Redirect("SubjectStructure.aspx"); // refresh the whole page
    }


    /// <summary>
    ///     Initialize main page - handle control events that bubble down
    /// </summary>
    /// <param name="e"></param>
    #region Web Form Designer generated code
    override protected void OnInit(EventArgs e)
    {
        InitializeComponent();
        base.OnInit(e);
    }

    // On main page handle the incomming events
    private void InitializeComponent()
    {
        this.Load += new System.EventHandler(this.Page_Load);
        // SubjectSelector1.SubjectChange += new EventHandler(SelectedSubjectChange);
        // SubjectDetails1.SubjectDetailsChange += new EventHandler(btnSaveSubj_Click);
    }
    #endregion


    protected void btnSelectAll_Click(object sender, EventArgs e)
    {
        SelectAllActvs();
        // write this list to the javascript to update the activities that are selected there
    }

    // this procedure looks at activities in the hidden field text box and only hightlights them
    public void SelectAllActvs()
    {
        txtbxActvs.Text = "";   // clear the text box and select all activities by putting each activity in the text box

        string actvstr = "";
        int actvID = 0;
        bool selected = false;

        // parse through the activities and highlight those with ids in the list of selected activities
        foreach (GridViewRow row in gridviewContacts.Rows)
        {
            // get a handle to the activities
            DataList datalistActvs = (DataList)row.FindControl("datalistActvs");
            if (datalistActvs != null)
            {
                foreach (DataListItem dlitem in datalistActvs.Items)
                {
                    switch (ActivityViewMode)
                    {
                        case "Activity":
                            ActivityBox actvbox = (ActivityBox)dlitem.FindControl("ActivityBox1");
                            actvID = actvbox.ActvID;



                            actvstr = "=" + actvID.ToString() + ";";
                            // if the list of actvIDs contains this activities ID then select the activity
                            txtbxActvs.Text += actvstr;
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvbox.Selected = selected;
                            // todo make this like Staff
                            break;
                        case "Streams":
                            ActvStreams actvstrm = (ActvStreams)dlitem.FindControl("ActvStreams1");
                            actvID = actvstrm.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            txtbxActvs.Text += actvstr;
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvstrm.Selected = selected;
                            // todo make this like Staff
                            break;
                        case "Staff":       // venues, staff
                            ActivityResource actvstaff = (ActivityResource)dlitem.FindControl("ActivityResource1");
                            actvID = actvstaff.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            txtbxActvs.Text += actvstr;
                            actvstaff.Selected = true;
                            // todo make this like Staff
                            break;
                        case "Venues":
                            ActivityResource actvres = (ActivityResource)dlitem.FindControl("ActivityResource1");
                            actvID = actvres.ActvID;
                            actvstr = "=" + actvID.ToString() + ";";
                            txtbxActvs.Text += actvstr;
                            selected = txtbxActvs.Text.Contains(actvstr);
                            actvres.Selected = selected;
                            // todo make this like Staff
                            break;
                    }   // end switch

                }  // end foreach
            } // end if
        }

    }

    protected void gridviewContacts_SelectedIndexChanged(object sender, EventArgs e)
    {


    }



    protected void SqlDataSourceActvs_DataBinding(object sender, EventArgs e)
    {
        // when binding the controls build themselves dynamically. Templates inside certain controls containe
        // SqlDataSources which must connect to the database logged onto to run properly. Just before evaluating
        // change the datasource
        // check that the sender is infact a SqlDataSource
        if (sender.GetType().ToString() == "System.Web.UI.WebControls.SqlDataSource")
        {
            SqlDataSource sqlDatSrc = (SqlDataSource)sender;
            CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref sqlDatSrc);
        }

    }
    protected void SqlDataSourceActvs_Init(object sender, EventArgs e)
    {
        // when binding the controls build themselves dynamically. Templates inside certain controls containe
        // SqlDataSources which must connect to the database logged onto to run properly. Just before evaluating
        // change the datasource
        // check that the sender is infact a SqlDataSource
        if (sender.GetType().ToString() == "System.Web.UI.WebControls.SqlDataSource")
        {
            SqlDataSource sqlDatSrc = (SqlDataSource)sender;
            CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref sqlDatSrc);
        }
    }
    protected void SqlDataSourceActvs_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
    {
        // when binding the controls build themselves dynamically. Templates inside certain controls containe
        // SqlDataSources which must connect to the database logged onto to run properly. Just before evaluating
        // change the datasource
        // check that the sender is infact a SqlDataSource
        if (sender.GetType().ToString() == "System.Web.UI.WebControls.SqlDataSource")
        {
            SqlDataSource sqlDatSrc = (SqlDataSource)sender;
            CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref sqlDatSrc);
        }
    }
    protected void SqlDataSourceCntcTypes_DataBinding(object sender, EventArgs e)
    {
        // when binding the controls build themselves dynamically. Templates inside certain controls containe
        // SqlDataSources which must connect to the database logged onto to run properly. Just before evaluating
        // change the datasource
        // check that the sender is infact a SqlDataSource
        if (sender.GetType().ToString() == "System.Web.UI.WebControls.SqlDataSource")
        {
            SqlDataSource sqlDatSrc = (SqlDataSource)sender;
            CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref sqlDatSrc);
        }
    }
    protected void SqlDataSourceCntcTypes_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
    {
        // when binding the controls build themselves dynamically. Templates inside certain controls containe
        // SqlDataSources which must connect to the database logged onto to run properly. Just before evaluating
        // change the datasource
        // check that the sender is infact a SqlDataSource
        if (sender.GetType().ToString() == "System.Web.UI.WebControls.SqlDataSource")
        {
            SqlDataSource sqlDatSrc = (SqlDataSource)sender;
            CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref sqlDatSrc);
        }
    }
    protected void SqlDataSourceCntcTypes_Init(object sender, EventArgs e)
    {
        // when binding the controls build themselves dynamically. Templates inside certain controls containe
        // SqlDataSources which must connect to the database logged onto to run properly. Just before evaluating
        // change the datasource
        // check that the sender is infact a SqlDataSource
        if (sender.GetType().ToString() == "System.Web.UI.WebControls.SqlDataSource")
        {
            SqlDataSource sqlDatSrc = (SqlDataSource)sender;
            CommonFunctions.SetActiveConnectionStringForSqlDataSource(ref sqlDatSrc);
        }
    }
    protected void txtbxActvs_TextChanged(object sender, EventArgs e)
    {
        /* I created this Session Variables to keep Track of the Activities selected
         * As you can see there are lot of them doing them same thing, now the Reason is that 
         * they are used Diffenently in the Application 
         */

        Session["Activity_id"] = txtbxActvs.Text;

        Session["Selected_ID_Bind"] = txtbxActvs.Text;

        Session["Multi_Activity_ID"] = txtbxActvs.Text;
    }
    protected void txtActivity_TextChanged(object sender, EventArgs e)
    {
    }
    protected void gridviewContacts_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
    {
     
    }
}

And in my Host page and calling it like this

if (e.Item.Text == "Remove Selected" && Session["Array_To_Be_Replaced"] != null && Convert.ToString(Session["Array_To_Be_Replaced"]) != "")
            {
                ArrayList Activity_IDS = (ArrayList)Session["Activity_IDS"];

                ArrayList Array_To_Be_Replaced = (ArrayList)Session["Array_To_Be_Replaced"];

                obj.Remove_Cycles(Activity_IDS, Array_To_Be_Replaced, Convert.ToString(Session["ActiveDatabase"]));

                Bind_Grid_For_Staff();
                //Response.Redirect("SubjectStaff.aspx", false); //Refresh the Page again :)
                //Response.Redirect(Request.CurrentExecutionFilePath);
                //Response.Write("<script><a href='SubjectStaff.aspx' onclick='location.reload(true)'>'ActivityCtrl.ascx'</a></script>");
               <pre> ActivityCtrl1.RefreshUC();

lblAdminStatus.Visible = true;
lblAdminStatus.Text = "Staff Member Removed";
lblAdminStatus.ForeColor = System.Drawing.Color.Green;
Session["Array_To_Be_Replaced"] = null;

}
else
{
lblAdminStatus.Text = "Please Select the Staff Member to be Removed";

lblAdminStatus.ForeColor = System.Drawing.Color.Red;
lblAdminStatus.Visible = true;
}<

RefreshUC is the refreshing method of the UserControl

Thanks

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

First thing, the gridviewContacts is not assigned with any datasource in your code.

Before calling the DataBind() method for gridviewContacts, you need to set the DataSource for that.

Also the RefreshUC does not have the code to bind gridviewContacts with data.

So address this thins. Hope this will solve your problem.

The grid is Binded from a SQlDataSource control defined like this

<asp:SqlDataSource ID="SqlDataSourceContacts" runat="server" ConnectionString="< %$ ConnectionStrings:DBConnectionString % >"
    SelectCommand="select distinct tbl_cntc.ID, tbl_cntc.CntcTyp, tbl_cntc.Number, tbl_cntc.Duration, count( distinct tbl_Actv.id ) [NumberOfActivities]&amp;#13;&amp;#10;from tbl_cntc&amp;#13;&amp;#10;left outer join tbl_actv on tbl_actv.cntcId = tbl_cntc.ID&amp;#13;&amp;#10;where tbl_cntc.modlID = @ModlID&amp;#13;&amp;#10;group by tbl_cntc.ID, tbl_cntc.CntcTyp, tbl_cntc.Number, tbl_cntc.Duration&amp;#13;&amp;#10;order by CntcTyp, tbl_cntc.Number" UpdateCommand="Update tbl_cntc &amp;#13;&amp;#10;   set CntcTyp = @CntcTyp,&amp;#13;&amp;#10;         Duration = @Duration&amp;#13;&amp;#10;   where ID = @CntcID" >
    < SelectParameters>
        < asp:ControlParameter ControlID="hfmodlID" Name="ModlID" PropertyName="Value" / >;
    < /SelectParameters >
    < UpdateParameters >
        < asp:Parameter Name="CntcTyp"  />
        < asp:Parameter Name="Duration" / >
        < asp:Parameter Name="CntcID" / >
    < /UpdateParameters >

and as Shown above the Page load in the UserControl is like this

protected void Page_Load(object sender, EventArgs e)
{
    string clientscript = "";

    // make available to all subcontrols a variable with the client ID of the textbox in which to store the selected activity IDs
    clientscript = "var txtbxActvClientID = '" + txtbxActvs.ClientID.ToString() + "'; ";
    // assign the current list of selected activities to the list for JavaScript here
    //clientscript += "var ActivityList = String(\"" + txtbxActvs.Text + "\"); ";
    ClientScriptManager cs = Page.ClientScript;
    cs.RegisterClientScriptBlock(this.GetType(), "txtbxlookupid", clientscript, true);

    // if a subject is not selected hide the controls/actions a user has
    if (!Page.IsPostBack)
    {
    }
    HighlightSelectedActvs();
    //LoadSubjectStructure(SubjectID);
}

Thanks

Vuyiswa Maseko,

Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.tiyaneProperties.co.za
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/

hiii
i m using asp.net and i m sending a mail using gmail account,everything is fine in sending mail
but in body part code is
msg.Body = "Status is : '" + DropDownList3.SelectedValue.ToString() + "', for the Request of RMA No:'" + DropDownList1.SelectedValue.ToString() + "'";
its give out put in a single line without space, i want result like this

Status is: ******
for the request of RMA no. is: ******

while result is coming like status no: ****** for the request of rma no: *******

please suggest me
thanks

Environment.NewLine

Change your code like this

msg.Body = "Status is : '" + DropDownList3.SelectedValue.ToString + "<br>', for the Request of RMA No:'" + DropDownList1.SelectedValue.ToString() + "'";

hi all

How to get MAC address of client system or NIC card in asp.net

You can get the MAC address of the client using ActiveX object in javascript.

But the security settings of the client browser may prevent you from getting the information. Therefore the client browser security settins needs to be changed manually to allow ActiveX controls which may lead to security threats.

Hope this article[^] will help you to get MAC address of the client using JavaScript.

hi thanks for ur answer but is it possible in asp.net or in c#? Smile | :)

I seem to recall earlier versions of Visual Studio offerred the option of opening a web project locally, or on a remote server. Maybe I was imagining it, but I'm fairly sure I screwed up more than once and selected the wrong choice. Whatever... In VS2008 I can't find a way to do this, and I'm not really sure it's possible. I've searched MSDN and Help with the usual results.

Anyway, I've got the bare bones of an app hosted in a subdomain and I'd really like to continue developing it there, rather than ftp-ing back and forth every time I work on it. Not only would this be more convenient now, it will be handy later for site maintenance when I move it to its home domain.

Is this possible? If so, how do I accomplish it?

"A Journey of a Thousand Rest Stops Begins with a Single Movement"

Yes. VS 2008 will allow you to create web sites in IIS in the remote server.

Look into this article[^]

Good article, Thanks! Big Grin | :-D

Though it is specific to IIS7.0 and Vista, the technique works fine with XP and whatever version of IIS my host is using. I had to connect to the host and install FrontPage2000/2003 extensions first, and it gave me a warning when I connected that I'm connecting to a pre-compiled site which may stop working if I change anything, but we'll see what happens.

"A Journey of a Thousand Rest Stops Begins with a Single Movement"

Whether it is VS 2005 or VS 2008, the remote computer should have Front Page Extension installed and you must have FrontPage administration or author permissions to create new folders and files on the remote computer under the root where you want to create the new site.

Also check whether you will be allowed to happen the above things.

Otherwise you cannot create/open web sites in remote server.

Check this link:

http://msdn.microsoft.com/en-us/library/h17hytcs.aspx[^]

Previously everything was working just fine but today when I opened Visual Web Developer and then opened the Web Form in design view it gives me this ever lasting dialog box "Windows Installer - Preparing to Install". Please Help!

AliAmjad(MCP)

First make it Run THEN make it Run Fast!

This error might be occured if you install a program but the installation failed.Or, maybe you have problems trying to remove an old program because the installation files are corrupted.

Uninstall the visual developer and re-install again.
Or you can use Windows Windows Installer CleanUp Utility[^] to
resolve installation problems for programs that use Microsoft Windows Installer.

I'm making multi-upload file board.

and I'm done about uploading multi-files.

when I click "Edit" button, shows up the files that I uploaded on ListBox.

But when I would like to change the files that I uploaded, I don't know how to make it.

foreach (System.Web.UI.HtmlControls.HtmlInputFile HIF in hif)
{
try
{
string fn = System.IO.Path.GetFileName(HIF.PostedFile.FileName);

string fileName = Pds.SaveFile(fn, upDir);

HIF.PostedFile.SaveAs(upDir + fileName);

filename = fileName;
string userId = Session["memberID"].ToString();
string pathname = Session["pathname1"].ToString();
Pds.Insert(userId, User.Identity.Name, txtTitle.Text, txtContent.Text,filename, pathname);

This codes are about uploading.

are there sample sources for editing files that I uploaded.??

hello

If your dropdown box onchange is to make call to AJAX to refresh other part of the page, Would you choose JSON/WCF? Or have a ASPX page to render the result instead?

How'd you choose? Seems to me like JSON has nicer syntax (i.e more like function calls) but it suffers from:
a. CSRF attack (eval function)
b. more complex
c. Any issue with Authentication? can we do "Windows Authentication" with webHttpBinding?

<br />
<services><br />
      <service name="Microsoft.Ajax.Samples.CityService"><br />
        <endpoint <br />
          address="ajaxEndpoint"<br />
          behaviorConfiguration="AjaxBehavior"<br />
          binding="webHttpBinding"<br />
          contract="Microsoft.Ajax.Samples.ICityService" /><br />
      </service><br />
    </services><br />

Thanks

REF
http://en.wikipedia.org/wiki/JSON[^]

http://www.west-wind.com/weblog/posts/164419.aspx[^]

http://msdn.microsoft.com/en-us/library/bb299886.aspx[^]

http://msdn.microsoft.com/en-us/library/bb412170.aspx[^]

http://msdn.microsoft.com/en-us/library/bb412167.aspx[^]

http://msdn.microsoft.com/en-us/library/bb885100.aspx[^]

dev

Hi,

I am working on a migration project, where we are converting from classic ASP to ASP.Net 2.0. We want to run both ASP and ASP.Net parallel. We want to update the site with new .net pages what ever we develop, instead of waiting complete site development. So here I am struggling with session variables passing between ASP and ASP.Net. I searched thru the internet and found couple of ways to do it.

http://msdn.microsoft.com/en-us/library/aa479313.aspx#converttoaspnet_topic6
http://www.eggheadcafe.com/articles/20041017.asp
http://www.eggheadcafe.com/articles/20021207.asp

But I dont understand which approach is the best way to do. Mine is a financial application, so looking for secured with little/noo changes in existing ASP.

Please help me in finding the solution.

Thanks,
Satheesh M

You can't do it with no changes at all, you need a proxy to store your session data, and both apps need to call the proxy in order to share the data.

Christian Graus

Driven to the arms of OSX by Vista.

"I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )

Yes, that's why I mentioned I am looking for little/no changes. you mentioned we have to use proxy, means some database or some thing else. Can you please guide me.
Thanks,
Satheesh

I have a database in sql server named as "stock" in which "custdetails" is a table which has various fields.
I have connection string as-

ConString = "Data Source=localhost;Initial Catalog=stock;Integrated Security=true";

and two method selecct and update as-

public DataTable select(String query)
{
DataSet ds = new DataSet();
SqlDataAdapter adp = new SqlDataAdapter(query, ConString);
adp.Fill(ds);
return (ds.Tables[0]);
}
public void update(String query)
{
DataSet ds = new DataSet();
SqlDataAdapter adp = new SqlDataAdapter(query, ConString);
adp.Fill(ds);

Now I have a button.when buton is clicked i want to take data from database.But it is not retrieved. I have cheked it by printing it in a textbox.the code is as follow-

DataTable dt=new DataTable();
common obj=new common();
dt = obj.select("select * from custdetails");
TextBox2.Text = dt.Rows.Count.ToString();
TextBox1.Text = dt.Rows[1][1].ToString();

It is not working.what problem can be????
plz help me.......