CustomizeGridviewControl

• Download CustomizeGridView - 3 KB

Introduction

This Article is show you that a customize gridview control with all thing sorting pagiing is done on page only you have pass columns to Gridview

Background

Using Gridview with Rapid Development

Using the code

A brief description of how to use the article or code. The class names, the methods and properties, any tricks or tips.

Blocks of code should be set as style "Formatted" like this:

           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 MyDataAccesLayer;

public partial class MyGrid : System.Web.UI.UserControl
{
    #region Declarion and Variables
    DBAccess objDBAccess = new DBAccess();
    string userID = "";
    static int i = 0;
    string resid = "";
    DataSet ds = null;
    #endregion

    #region Constructor and Property
    private string GridViewSortDirection
    {
        get
        {
            return ViewState["SortDirection"] as string ?? "ASC";
        }
        set
        {
            ViewState["SortDirection"] = value;
        }
    }
    private string GridViewSortExpression
    {
        get
        {
            return ViewState["SortExpression"] as string ?? string.Empty;
        }
        set
        {
            ViewState["SortExpression"] = value;
        }
    }
    private string GetSortDirection()
    {
        switch( GridViewSortDirection )
        {
            case "ASC":
                GridViewSortDirection = "DESC";
                break;
            case "DESC":
                GridViewSortDirection = "ASC";
                break;
        }
        return GridViewSortDirection;
    }
    #endregion

    #region Events
    protected void Page_Load( object sender, EventArgs e )
    {
        if( !IsPostBack )
        {
            try
            {
                GetData();
            }
            catch( Exception ex )
            {
                Response.Write( ex.Message );
            }
        }
    }
    protected void GridView1_RowDataBound( object sender, GridViewRowEventArgs e )
    {
        try
        {
            if( e.Row.RowType == DataControlRowType.DataRow )
            {
                userID = GridView1.DataKeys[e.Row.RowIndex][1].ToString();
                resid = GridView1.DataKeys[e.Row.RowIndex][0].ToString();
                HyperLink lnkFinalSettlement = (HyperLink) e.Row.FindControl( "lnkFinalSettlement" );
                lnkFinalSettlement.Attributes.Add( "onmouseover", "this.style.cursor='hand'" );
                lnkFinalSettlement.Attributes.Add( "onclick", "javascript:window.open('Default.aspx?userID=" + userID + "&resid=" + resid + "','','','');" );
                Label lblResaon = (Label) e.Row.FindControl( "lblResaon" );
            }
        }
        catch( Exception ex )
        {
            Response.Write( ex.Message );
        }
    }
    protected void GridView1_PageIndexChanging( object sender, GridViewPageEventArgs e )
    {
        try
        {
            GridView1.PageIndex = e.NewPageIndex;
            GetData();
        }
        catch( Exception ex )
        {
            Response.Write( ex.Message );
        }
    }
    public void Paging( object sender, ImageClickEventArgs e )
    {
        ImageButton btn = (ImageButton) sender;
        switch( btn.ID )
        {
            case "btnPageFirst":
                GridView1.PageIndex = 0;
                lblCurrentPage.Text = GridView1.PageIndex.ToString();
                GetData();
                break;
            case "btnPageBackward":
                if( ( GridView1.PageIndex > 0 ) )
                {
                    GridView1.PageIndex -= 1;
                    lblCurrentPage.Text = GridView1.PageIndex.ToString();
                    GetData();
                }
                break;
            case "btnPageForward":
                if( ( GridView1.PageIndex < ( GridView1.PageCount - 1 ) ) )
                {
                    GridView1.PageIndex += 1;
                    lblCurrentPage.Text = GridView1.PageIndex.ToString();
                    GetData();
                }
                break;
            case "btnPageLast":
                GridView1.PageIndex = GridView1.PageCount - 1;
                lblCurrentPage.Text = GridView1.PageIndex.ToString();
                GetData();
                break;
            default:

                break;
        }
    }
    protected void GridViewSorting( object sender, EventArgs e )
    {
        LinkButton btn = (LinkButton) sender;
        GridViewSortExpression = btn.ID;
        int pageIndex = GridView1.PageIndex;
        GridView1.DataSource = SortDataTable( GetDataTable(), false );
        GridView1.DataBind();
        GridView1.PageIndex = pageIndex;
    }
    #endregion

    #region Methods
    protected DataTable GetDataTable()
    {
        string qry = "fs_get_New_Resignation @DEPT_ID=1";
        ds = (DataSet) objDBAccess.ExecuteQuery( qry, ReturnType.DataSetType );
        return ds.Tables[0];
    }
    protected void GetData()
    {
        GridView1.DataSource = SortDataTable( GetDataTable(), true );
        GridView1.DataBind();
        lblCurrentPage.Text = Convert.ToString( GridView1.PageIndex + 1 );
        lblTotalPage.Text = Convert.ToString( GridView1.PageCount );
    }
    protected DataView SortDataTable( DataTable dataTable, bool isPageIndexChanging )
    {
        if( dataTable != null )
        {
            DataView dataView = new DataView( dataTable );
            if( GridViewSortExpression != string.Empty )
            {
                if( isPageIndexChanging )
                {
                    dataView.Sort = string.Format( "{0} {1}", GridViewSortExpression, GridViewSortDirection );
                }
                else
                {
                    dataView.Sort = string.Format( "{0} {1}", GridViewSortExpression, GetSortDirection() );
                }
            }
            return dataView;
        }
        else
        {
            return new DataView();
        }
    }
    #endregion

}

HTML
      
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="MyGrid.ascx.cs" Inherits="MyGrid" %>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <table cellpadding="0" cellspacing="0" border="0" width="100%">
            <tr>
                <td>
                    <table width="100%" cellpadding="0" cellspacing="0">
                        <tr>
                            <td align="center" colspan="5">
                            </td>
                        </tr>
                        <tr>
                            <td align="center" colspan="5">
                                <asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1"
                                    DisplayAfter="5" DynamicLayout="true">
                                    <ProgressTemplate>
                                        <div style="width: 100%" align="center" class="Field">
                                            ....loading.....<br />
                                            
                                            <img src="images/ajax-loader.gif" />
                                        </div>
                                    </ProgressTemplate>
                                </asp:UpdateProgress>
                            </td>
                        </tr>
                        <tr>
                            <td align="center" colspan="5">
                                 
                            </td>
                        </tr>
                        <tr>
                            <td class="SubHeading" width="18%" align="center">
                                <asp:LinkButton ID="EmployeeName" runat="server" Text="Employee Name" OnClick="GridViewSorting"></asp:LinkButton></td>
                            <td class="SubHeading" width="47%" align="center">
                                <asp:LinkButton ID="Reason" runat="server" Text="Reason For Sepration" OnClick="GridViewSorting"></asp:LinkButton>
                            </td>
                            <td class="SubHeading" width="11%" align="center">
                                <asp:LinkButton ID="Resignation_Date" runat="server" Text="Resignation Date" OnClick="GridViewSorting"></asp:LinkButton>
                            </td>
                            <td class="SubHeading" width="11%" align="center">
                                Clearance Form
                            </td>
                            <td class="SubHeading" width="13%" align="center">
                                Final Settlement
                            </td>
                        </tr>
                    </table>
                </td>
            </tr>
            <tr>
                <td>
                    <asp:Panel ID="pnlResignation" runat="server" ScrollBars="Vertical" Height="500px"
                        Width="100%">
                        <table width="100%">
                            <tr>
                                <td valign="top">
                                    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="Resignation_ID,userID"
                                        Width="100%" CellPadding="2" OnRowDataBound="GridView1_RowDataBound" OnPageIndexChanging="GridView1_PageIndexChanging"
                                        ForeColor="#333333" ShowHeader="False" AllowPaging="True" PageSize="20">
                                        <Columns>
                                            <asp:BoundField DataField="EmployeeName">
                                                <ItemStyle Width="18%" VerticalAlign="Top" />
                                            </asp:BoundField>
                                            <asp:TemplateField>
                                                <ItemTemplate>
                                                    <asp:Label ID="lblResaon" runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"Reason")%>'></asp:Label>
                                                </ItemTemplate>
                                                <ItemStyle Width="47%" />
                                            </asp:TemplateField>
                                            <asp:BoundField DataField="Resignation_Date">
                                                <ItemStyle Width="13%" HorizontalAlign="Center" />
                                            </asp:BoundField>
                                            <asp:HyperLinkField Text="Clearance Form" DataNavigateUrlFields="Resignation_ID,UserID,Dept_ID"
                                                DataNavigateUrlFormatString="~/clearance-form.aspx?resignationid={0}&amp;userid={1}&amp;deptid={2}">
                                                <ItemStyle Width="11%" HorizontalAlign="Center" />
                                            </asp:HyperLinkField>
                                            <asp:TemplateField>
                                                <ItemTemplate>
                                                    <asp:HyperLink ID="lnkFinalSettlement" runat="server" Text="Final Settlement" Style="text-decoration: underline;">
                                                    </asp:HyperLink>
                                                </ItemTemplate>
                                                <ItemStyle Width="13%" HorizontalAlign="Center" />
                                            </asp:TemplateField>
                                        </Columns>
                                        <RowStyle CssClass="rptd1" />
                                        <AlternatingRowStyle CssClass="rptd2" />
                                        <PagerStyle CssClass="SubHeading" />
                                        <PagerSettings Visible="False" />
                                    </asp:GridView>
                                </td>
                            </tr>
                        </table>
                    </asp:Panel>
                    <%--  <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="btnPageBackward" EventName="Click" />
                    <asp:AsyncPostBackTrigger ControlID="btnPageFirst" EventName="Click" />
                    <asp:AsyncPostBackTrigger ControlID="btnPageForward" EventName="Click" />
                    <asp:AsyncPostBackTrigger ControlID="btnPageLast" EventName="Click" />
                    <asp:AsyncPostBackTrigger ControlID="Resignation_Date" EventName="Click" />
                    <asp:AsyncPostBackTrigger ControlID="Reason" EventName="Click" />
                    <asp:AsyncPostBackTrigger ControlID="EmployeeName" EventName="Click" />
                </Triggers>--%>
                </td>
            </tr>
            <tr>
                <td align="right">
                    <table width="100%" cellpadding="0" cellspacing="0">
                        <tr>
                            <td class="SubHeading" width="25%" align="center">
                            </td>
                            <td class="SubHeading" width="25%" align="center">
                            </td>
                            <td class="SubHeading" width="25%" align="center">
                            </td>
                            <td class="SubHeading" width="25%" align="center">
                                Page
                                <asp:Label ID="lblCurrentPage" runat="server" Text=""></asp:Label>
                                of
                                <asp:Label ID="lblTotalPage" runat="server" Text=""></asp:Label>
                                <asp:ImageButton ID="btnPageFirst" runat="server" ImageAlign="Middle" ImageUrl="~/images/first.gif"
                                    OnClick="Paging" />
                                <asp:ImageButton ID="btnPageBackward" runat="server" ImageAlign="Middle" ImageUrl="~/images/previous.gif"
                                    OnClick="Paging" />
                                <asp:ImageButton ID="btnPageForward" runat="server" ImageAlign="Middle" ImageUrl="~/images/next.gif"
                                    OnClick="Paging" />
                                <asp:ImageButton ID="btnPageLast" runat="server" ImageAlign="Middle" ImageUrl="~/images/last.gif"
                                    OnClick="Paging" />
                            </td>
                        </tr>
                    </table>
                </td>
            </tr>
        </table>
    </ContentTemplate>
</asp:UpdatePanel>

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History

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