ASP.NET adding Ajax controls to UpdatePanel in Ajax request

Question

I'm trying to do the following: I have only a ScriptManager and an UpdatePanel (with empty ContentTemplate) on a page. I would like to add a button on it during the page load. Then after the button is pressed I would like to get an Ajax request and generate some dynamic controls on the page.

But it doesn't work, the code is below:

protected void Page_Load(object sender, EventArgs e)
{
    if(!IsPostBack)
        listServices();
}

private void listServices()
{
    Button button = new Button();
    button.Text = "Save";
    button.ID = "Save";
    button.Click += new EventHandler(button_Click);

    UpdatePanel1.ContentTemplateContainer.Controls.Clear();
    UpdatePanel1.ContentTemplateContainer.Controls.Add(button);

    AsyncPostBackTrigger trig = new AsyncPostBackTrigger();
    trig.ControlID = button.UniqueID;
    trig.EventName = "Click";
    UpdatePanel1.Triggers.Add(trig);
}

void button_Click(object sender, EventArgs e)
{
    throw new NotImplementedException();
}

I've looked into: [Adding controls dynamically to an UpdatePanel in ASP.NET AJAX][1] But it doesn't solve the problem in my case.

Doing this must be possible, many services have this functionality.

Thanks for help. Adam

You haven't really detailed what the problem is... "it doesn't work" doesn't give us much to go on. — womp, Dec 15 '09 at 22:00
OK, the problem is: When the page is generated I see the Save button. But when I click it, the button_Click event is not triggered (but the Page_Load method is, IsPostBack==false). — Adam, Dec 15 '09 at 22:10

score 0 · Answer 1 · edited May 23 '17 at 12:13

0

Hai adam, Have a look at this one How can I create buttons and hook up events from postback

It deals with commandEventHandler and you change it to event handler and it may work for you...

edited May 23 '17 at 12:13

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answered Dec 16 '09 at 03:04

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ASP.NET adding Ajax controls to UpdatePanel in Ajax request

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