Asp.Net - User Control Button OnClick Event Not Firing

Question

I have a user control that is loaded only in certain instances, for example, when a user clicks a button on the page the following happens:

MyControl ctl = (MyControl)LoadControl(controlPath);
this.MyFormControl.Add(ctl);

The user control that is loaded has a form and a submit button, with a method that I want to run on click so:

<asp:Button runat="server" ID="SaveButton" Text="Save" OnClick="btnSave_Click" />

In the codebehind of the user control:

protected void btnSave_Click(object sender, EventArgs e)
{
    // Do something
}

I can't seem to get the do something part to happen when the button is clicked. I think it may be related to the fact that the control is not normally loaded with the page, but I'm not really sure what to do about that.

Please give a better description of how you are adding the Button to the page. — AndrewK, Jul 18 '13 at 20:30
MyControl ctl = (MyControl)LoadControl(controlPath); this.MyFormControl.Add(ctl); This happens as part of a method that is running after a button on the page is clicked. — maembe, Jul 18 '13 at 20:36
Does btnSave_Click exist in the code-behind for the User Control or the page you are adding the UC to? — Garrison Neely, Jul 18 '13 at 20:48

Mike · Accepted Answer · 2013-07-18T20:41:16.713

4

Is this in your page directive?:

<%@ Page Language="C#" AutoEventWireup="true"

Edit

Is it dynamically created/loaded? Dynamic controls need to be created every request (maybe it's in a if (!IsPostback) block)?

edited Jul 18 '13 at 20:41

answered Jul 18 '13 at 20:32

Mike

161
11

I'm pretty sure that this is the issue, but I'm not really sure what to do about it. It seems impractical to dynamically load the control after the postback. Is there a good way around this? – maembe Jul 18 '13 at 21:35
Sadly, no, you have to create the dynamic control with each request. – Mike Jul 18 '13 at 21:41
+1 on the "(maybe it's in a if (!IsPostback) block)" – user1132959 Mar 21 '14 at 12:25

score 0 · Answer 2 · answered Jul 18 '13 at 20:58

0

Is Viewstate enabled on your page?

If you specifically turned it off, you will need to re-add your usercontrol on each post back as the page won't automatically re-add it.

answered Jul 18 '13 at 20:58

AaronS

7,649
5
30
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score 0 · Answer 3 · answered Nov 19 '13 at 21:29

0

I had the same issue. I had viewstate="false" on the page I was adding the control to. (on the aspx page)

answered Nov 19 '13 at 21:29

calorie712

348
4
14

Asp.Net - User Control Button OnClick Event Not Firing

3 Answers3