Complex and Interesting DataGrid Dynamic Control problem - ASP.NET Discussion Boards

hi friend,

thank you i have already added the nodes dynamically.
you tell me how to add this treeview in a datagrid?

prasanna

Hi,

In my website, I need to give a popdown menu to the user for various options.

Suppose, the menu options ar as follows :-

Home View Records Reports Exit

1 - Batch 3 - Error

2 - Summary 4 - Valid

5 - Dropped

Where Home and Exit are independent links with no sub menus whereas View Records has sub menu 1 & 2 and Reports has sub menu 3,4 & 5

How do I create this using the new ASP.NET 2.0 menu control. I also need to implement role based security in this. For eg. if a particular menu item is not accessible to a particular role, then either that menu item should be disabled or preferably not rendered at all.

I will be using this control for the 1st time, so pls guide me in how to proceed.

Thanks and best regards

Omkar

-- modified at 1:57 Monday 13th November, 2006

how to edit and update an datalist in asp.net in c#

Refer the below-mentioned url:-

http://www.ondotnet.com/pub/a/dotnet/2003/03/10/datalist.html[^]

Smile | :)

Regards,

Suresh Dayma

Everything Is Possible!

Every single one is loaded! Confused | :confused:

page init and page load

Best Regards
3ala2 Smile | :)

what are the methods are loaded when page is loaded

vinaykumar

Dear ALL,
I am facing a bit problem in DATAGRID. so may be you guys can help me
out.
Actually on a DataGrid I am having following controls:
1) 2 DropDown Menu
2) 1 Text Box
3) 1 ADD Button
4) 1 Remove Button

So these all controls are in 1 row and looks like:

DROPDOWN1 DROPDOWN2 TEXTBOX ADD BUTTON REMOVE BUTTON.

So when user will press ADD Button then the same new row will be
populated and will look like.

DROPDOWN1 DROPDOWN2 TEXTBOX ADD BUTTON REMOVE BUTTON (ROW1)
DROPDOWN1 DROPDOWN2 TEXTBOX ADD BUTTON REMOVE BUTTON (ROW2)

And So on. So these rows will be populated until user press ADD BUTTON.
and similarly on pressing the REMOVE BUTTON the corresponding ROW will
be deleted.

I have implemented this functionality. but NOW the REAL PROBLEM comes
into picture.

Actually, when this SECOND ROW (ROW 2 and so on) will be populated
then I have to set the VISIBILITY of ADD BUTTON of FIRST ROW (or
previous row) to FALSE.

SO LOGICALLY SPEAKING this ADD Button should be visible only for the
CURRENT ROW and for all the previous rows the ADD BUTTON's TEXT should
be replaced by a LABEL Control.

I tried to access this BUTTON CONTROL a lot but was unable to do that.

So if you have any idea then please let me know. I am posting the code
for your review. Your help is really appreciated.

public void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
dsSource.Tables.Add(new DataTable("RepeaterSource"));
dsSource.Tables[0].Columns.Add(new DataColumn("DropDownValue2"));
dsSource.Tables[0].Columns.Add(new DataColumn("EditBoxValue"));
dsSource.Tables[0].Rows.Add(new Object[] { 2,""});
datagrid1.DataSource = dsSource;
datagrid1.DataMember = "RepeaterSource";
datagrid1.DataBind();

Session[DATA_SOURCE_KEY] = dsSource;
}
else
{
dsSource = (DataSet)Session[DATA_SOURCE_KEY];
datagrid1.DataSource = dsSource;
datagrid1.DataMember = "RepeaterSource";
}

}

public void OnItemCommand(Object sender, DataGridCommandEventArgs e)
{
if(e.CommandName == "Add")
dsSource.Tables[0].Rows.Add(new object[] {1,"Text Here" });
datagrid1.DataBind();
Session[DATA_SOURCE_KEY] = dsSource;
}

if(e.CommandName =="Delete")
{
dsSource.Tables[0].Rows[e.Item.ItemIndex].Delete();
datagrid1.DataBind();
Session[DATA_SOURCE_KEY] = dsSource;
}

}

HERE IS THE CODE BEHIND PAGE:`
<asp:datagrid id="datagrid1" runat="server" width="288px"
gridlines="Vertical" font-size="8pt"
font-name="verdana" cellpadding="3" autogeneratecolumns="False"
showfooter="True" borderwidth="1px" bordercolor="#999999"
backcolor="White" font-names="verdana" borderstyle="None"
onitemcommand="OnItemCommand"
<columns="">
<asp:templatecolumn>
<itemtemplate>
` <asp:dropdownlist runat="server"
id="comparatorDropDown">
<asp:listitem value="2" text="Select Comparator"
lected="True">

<asp:templatecolumn>
<itemtemplate>
<asp:dropdownlist id="Dropdownlist1"
runat="server">
<asp:listitem
value="citigroup_cfo">CitiGroup_Cfo
<asp:listitem
value="citigroup_cf1">CitiGroup_Cf1

<asp:templatecolumn>
<itemtemplate>
<asp:textbox id="Textbox1" runat="server"
columns="20">

<asp:templatecolumn>
<itemtemplate>
<asp:label runat="server" id="Label1"
visible="true">AND
<footertemplate>
<asp:button text="Add Condition" font-size="10px"
runat="server"
id="AddButton" commandname="Add" width="100%">

<asp:templatecolumn>
<itemtemplate>
<asp:button runat="Server" text="Remove
Condition"
id="RemoveButton" commandname="Delete" width="100%" font-size="10px">

Hello,

I am completely confused in relation to Themes and CssClass in Asp.Net 2.0.

Consider a custom control (MyControl) that I am creating which composed by:

Panel_01
Table_01
Label_01
Image_01
Hyperlink_01
Panel_02
Label_02

Now, consider I want the text in Label_01 to be different of text in Label_02.
And that I want to format the <a> tags in Hyperlink_01 as follows:

.a, .a:link, .a:visited {color: #950C00; text-decoration: underline;}
.a:hover, .a:active {color: #950C00;text-decoration: none;}

How should I set the SkinIDs and CssClasses in my controls inside my Custom control so I can make this work.

I am asking this because sometimes using Skins seems to be a limit over CSS.
Sometimes I end up using many Skins...

Could someone give me some advice on this?

Thanks,
Miguel

when i load the app configuration page from the solution explorer im presented with the page that allows you to add app settings, set up security etc..

all very nice, however whenever i click security it tells me that i havent specified a data store and then when i click the 'choose data store' button it takes me to the provider page where im given a 'test' link which then tells me that it couldnt connect to the database.

I know that i need a connection string to the database that i have run aspnet_regsql.exe upon - but why cant i configure this through those pages????

i have to manually add the code into the web.config (which i found on an msdn page).

surely i must be missing a configurastion step here?

---Guy H ( Wink | ;-)

---

anyone know about this? Sigh | :sigh:

---Guy H ( Wink | ;-)

---

Has anybody made a web application attendance monitoring system ..help needed urgently

Dears

When Im using check Box List with 5 item andd when I user select 2 or 3 out of 5 item
In database only first selected value inserted only ???
(+ this.DaysCheckBoxList.SelectedValue.ToString() + "')";)

Any help

-- modified at 2:43 Wednesday 15th November, 2006

Hello,

I have a custom control where I have a button.
I need to raise the event FormSubmited after all the code, in
Button_Click, is finished.

The problem is when I check FormSubmited in my page nothing happens:

Private Sub Form_FormSubmited(ByVal sender As Object, ByVal e As
EventArgs) Handles Form.FormSubmited
Response.Write("For Was Submited")
End Sub

My custom control code is as follows:
...
Public Class Contact
Inherits WebControl

Private Sub bSubmit_Init(ByVal sender As Object, ByVal e As
System.EventArgs)
.....
End Sub

Private Sub bSubmit_Click(ByVal sender As Object, ByVal e As
System.EventArgs)

' SOME CODE

' Raise the OnFormSubmited event
RaiseEvent FormSubmited(Me, EventArgs.Empty)

End Sub

Public Event FormSubmited As EventHandler
Protected Overridable Sub OnFormSubmited(ByVal e As EventArgs)
RaiseEvent FormSubmited(Me, e)
End Sub

Protected Overrides Sub CreateChildControls()

AddHandler bSubmit.Init, AddressOf bSubmit_Init
AddHandler bSubmit.Click, AddressOf bSubmit_Click
MyBase.Controls.Add(bSubmit)

End Sub

End Class

Could someone tell me what am I doing wrong here?

Thanks,
Miguel

Define "nothing happens"

--------------------------------------------------------
My portfolio & development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!

Hi,

I added the control to a page and the following code:

Private Sub by27fContactForm_FormSubmited(ByVal sender As Object, ByVal e As EventArgs)
Response.Redirect("http://www.google.com")
End Sub

When I click the button the browser should load the page www.google.com.
Nothing happens. I also tried other things to test the event handler but nothing happens.

What should I do?

Thanks,
Miguel

ok so I didnt think this would be such a big deal, but Im having trouble (errors etc.)
accessing a on a masterpage, within a user control:

1. masterpage has

<asp:contentplaceholder id="ContentPlaceHolder1" runat="server">

2. then I have a aspx page that inherits from this master page, I have
<asp:content id="Content1" contentplaceholderid="ContentPlaceHolder1" runat="Server">

<uc1:ucsaddlocation id="UcsAddLocation1" runat="server">

3. the user control's code-behind has
if (!Page.IsPostBack)
{
RadioButtonList rblLocationHandle = (RadioButtonList) frmAddLocation.FindControl("rblAddLocation");

if (Request.Form["rblAddLocation"] == null)
... etc.

but when I run the page, it says "frmAddLocation" is not valid in this context.

So how do you access a form thats on the masterpage, in the user control?

also, when my default.aspx page, which is part of ANOTHER masterpage, posts to the AddLocation.aspx page, Request.Form["rblAddLocation"] is always null! but Request.Form[4] isnt! how come? thing is, when I use [4], and I go to AddLocation page directly, meaning without a post, it bombs on [4].

now, I can catch it, and move on, but what the heck is going on? how do you use <forms> on master pages and user controls?

thanks in advance!

Moazzam

Use the "Ignore HTML" option when posting html, or it won't be readable. I have no idea why they chose to not encode the html code in the forum, it's a constant source of problems, but that's the way it works here.

You can't access the control directly from within the user control, as the control is not part of the user control. If you want to access it, you need to do it through the reference to the page object, and cast it to the exact class of the page. This is the opposite of how a user control is supposed to work, though. It's purpose is that you should be able to reuse the control on more than one page, but that's not possible if the user control relies on being used on a specific page.

When you use controls in a container, their client id changes, so you can't use Request.Form with the server id of the control. Look in the generated source code of the page to see what the client name of the control is.

---
b { font-weight: normal; }

thanks for the response.

I tried to read the fields from the control but it wouldnt work, then all of a sudden it started to work. cause yeah I understand the user control shouldnt be dependent on anything else, or it breaks.

I also found out, you dont use POST to transfer stuff anymore, just do postbacks, then transfer via response.redirect using querystring.

did I get that right?

thanks!

how to insert line numbers to a document that is displayed when the page is loaded.

Why don't they update ViewState to use generics?!?

/\ |_ E X E GG

What does this mean?

M Aamir Maniar
aamirOnline.com

I want to get

1. get some data using a SqlDataAdapter from a query on db
2. close connection from db
3. fill a dataset and bind it to a control.
4. making updates on data and post it back to db update all rows back.

but it must like saving an excel page. So what can be the best method. Is there anything like opposite action of a dataAdapter fill method.

	<br />
     // ACTION 1,2,3 <br />
     SqlDataAdapter da;	<br />
      <br />
      using (SqlConnection con = new SqlConnection(connectionString)) {<br />
             cmd.Connection = con;		<br />
             con.Open();<br />
             da = new SqlDataAdapter(cmd)	<br />
      }<br />
<br />
      ds = new Dataset();<br />
      da.Fill(ds)<br />
      ...<br />
      // bind the data to a control, may be a repeater <br />
      // which has form inputs field for each row and  field of data       <br />
      // user makes changes on data.<br />
<br />
      // ACTION 4 ? update it back to db.<br />
<br />

karanba

well yes, da.Update(ds)

providing you specify an update command (i see you have specified a select command when initializing your data adapter)

---Guy H ( Wink | ;-)

---

Hi, I want to learn, which will be is true for best performance. Are those the same thing that not to close a connection and leave it to dispose when the scope finishes.

<br />
    // do not close connection<br />
    public static SqlDataAdapter getDataAdapter(SqlCommand cmd, string connectionString)<br />
    {<br />
        SqlConnection con = new SqlConnection(connectionString);<br />
        cmd.Connection = con;<br />
        con.Open();<br />
        return new SqlDataAdapter(cmd);<br />
    }

or

<br />
// close connection <br />
public static SqlDataAdapter dataAdapter(SqlCommand cmd, string connectionString)<br />
{<br />
    SqlConnection con = new SqlConnection(connectionString);<br />
    cmd.Connection = con;<br />
    con.Open();<br />
    SqlDataAdapter da = new SqlDataAdapter(cmd)<br />
    con.Close();<br />
    return da;<br />
}

karanba