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How to raise an event for a linkbutton created programmatically

I am trying to add a click or onCommand event for a link button that is generated dynamically in the code behind. I can't get it to work and I have tried many examples found on the internet. In the example below it works if I define the linkbutton in the aspx page, but you will see below when I do it in the page load of the code behind it doesn't fire. What am I doing wrong? Thanks!

<asp:Panel ID="jobType2Panel" runat="server">
<asp:LinkButton id="lb2" text="in aspx page" runat="server" OnClick="LinkButton2_Click"</asp:LinkButton>
</asp:Panel>

<asp:Label id="Label2" runat="server" />

code behind:

protected void Page_Load(object sender, EventArgs e)
{

LinkButton lb3 = new LinkButton();
lb3.OnClientClick = "LinkButton2_Click";
lb3.Text = "in code behind";
jobType2Panel.Controls.Add(lb3);

}
public void LinkButton2_Click(Object sender, EventArgs e)
{
Label2.Text = "You clicked the link button";
}

Todd Gerbert

OnClientClick runs JavaScript on the client when clicked, you want want:

lb3.Click += new EventHandler(lb3_Click);
public void lb3_Click(object sender, EventArgs e)
{
  Label2.Text = "Hello World";
}

Open in new window

Ashok

<asp:Panel ID="jobType2Panel" runat="server">
<asp:Button id="lb2" text="in aspx page" runat="server" OnClick="LinkButton2_Click" />
</asp:Panel>

<asp:Label id="Label2" runat="server" />

code behind:

LinkButton lb3 = new LinkButton();
lb3.OnClientClick = "LinkButton2_Click";
lb3.Text = "in code behind";
jobType2Panel.Controls.Add(lb3);

HTH
Ashok

Ashok

tgerbert is correct.

If you want to add event at run time use his code.

Thanks,
Ashok

rajapandian_81

Try below code to call onclick event of LinkButton2

LinkButton lb3 = new LinkButton();
        lb3.Click += new EventHandler(LinkButton2_Click);
        lb3.Text = "in code behind";
        jobType2Panel.Controls.Add(lb3);

Open in new window

Ashok

<asp:Panel ID="jobType2Panel" runat="server">
<asp:LinkButton id="btn2" text="in aspx page" runat="server"/>
</asp:Panel>

<asp:Label id="Label2" runat="server" />

Code behind:

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

namespace WebAppTest1
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
btn2.Click += new EventHandler(btn2_Click);
LinkButton btn3 = new LinkButton();
btn3.Click += new EventHandler(btn3_Click);

btn3.Text = "in code behind";
jobType2Panel.Controls.Add(btn3);
}

void btn3_Click(object sender, EventArgs e)
{
Label2.Text = "You clicked button using code behind click";
}

void btn2_Click(object sender, EventArgs e)
{
Label2.Text = "You clicked the button using ASP click";
}

}
}

farmingtonis

ASKER

Thanks - This code works now but only on the second click. Do I need to define it in an init?

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Todd Gerbert

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Ashok

This code works now but only on the second click.

Code I posted is tested and working.

btn2 is created at design time and OnClick is added at run time.
btn3 is created at run time and OnClick is added at run time.

if you click on any of the LinkButton, it changes TEXT of the LABEL.

HTH
Ashok

farmingtonis

ASKER

Thanks I can stop pulling my hair out. barb