LinkButton ,Label inside Repeater – ASP.NET


Hello All

Today I will show you how to fire  Link Button’s event with argument and initialize a label inside of a repeater. To do that first we have to take LinkButton and a Label control inside the ItemTemplate of the repeater. Then we have to initialize the the Label from OnItemDataBound event of the repeater. In the following code blocks its shown how to perform the job.

Following is my Default.aspx file:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="TestProject._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">
 <title></title>
</head><body>
 <form id="form1" runat="server">
 <div>
 Selected ID:<asp:Label ID="lblSelectedID" runat="server" Text=""></asp:Label>
 <br />
 <asp:Repeater ID="rptContent" runat="server" OnItemDataBound="rptContent_ItemDataBound">
 <ItemTemplate>
 <asp:Label ID="lblName" runat="server">
 </asp:Label>
 <asp:LinkButton ID="lnkShowData" runat="server" OnCommand="LinkButton_Command" CommandArgument='<%# Eval("key") %>'
 Text="[Show]" CommandName="Show"></asp:LinkButton> 
               <br />
 </ItemTemplate>
 </asp:Repeater>
 </div>    
</form>
</body>
</html>

In the above code I have bind the “key” as CommandArgument in LinkButton which will be initialize form the code behind file.

My code behind is as following:

using System;using System.Collections.Generic;using System.Web.UI;using System.Web.UI.WebControls;

namespace TestProject{    public partial class _Default : System.Web.UI.Page    {
 protected void Page_Load(object sender, EventArgs e)
 {            rptContent.DataSource = this.userInformation();
 rptContent.DataBind();
 }

       // Fire the link button event from inside repeater.
 protected void LinkButton_Command(object sender, CommandEventArgs e)
 {
 lblSelectedID.Text = e.CommandArgument.ToString();
 }

 protected void rptContent_ItemDataBound(object sender, RepeaterItemEventArgs e)
 {            // find the label control by id

 Label lblDynaLabel = (Label)(e.Item.FindControl("lblName"));

            // bind the data from repeater data source (value from the dictionary)with the label control.
 lblDynaLabel.Text = DataBinder.Eval(e.Item.DataItem,"value").ToString();
 }

        #region Private method

 private Dictionary<int, string> userInformation()
 {
 Dictionary<int, string> userData = new Dictionary<int, string>();

            userData.Add(1, "Max");
 userData.Add(2, "Top");
 userData.Add(3, "Avg");

            return userData;
 }
 #endregion
 }
}

The output will be as bellow:

Selected ID:1
Max [Show]
Top [Show]
Avg [Show]

In the private method section I have created a simple mathod named userInformation, which contains dictionary data collection to bind it with repeater.Hope that above code blocks will help.

Thanks

That’s all for the day.

BYE

User ScrumPad for your Agile based projects.
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3 responses to “LinkButton ,Label inside Repeater – ASP.NET”

  1. Thanks Robin and zico . Hope next time i will put some more effort to write some more description.

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