Question

I have this method defined since I will add a link button to each row in a long table. However it does not call the eventHandler. It does cause a asyncPostback but never calls the eventHandler.

public static void InsertLinkButton(string text, string id, EventHandler eventHandler,
        UpdatePanel updateSummary, PlaceHolder placeHolder)
{
    LinkButton link = new LinkButton();
    link.Text = text;
    link.Click += eventHandler;
    link.CausesValidation = false;
    AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
    trigger.ControlID = link.ID = "link" + id;
    trigger.EventName = "Click";
    Utils.Tag(link, placeHolder);
    updateSummary.Triggers.Add(trigger);
}

The event handler’s signiture:

protected void link_Click(object sender, EventArgs e)
{
    //check which link clicked me and do stuff
}

I would call the method with this:

InsertLinkButton("Division", "Division", link_Click, updateSummary, placeHolderSummary);

Is something in this code wrong? Or is my problems elseware?

Answer 1

You need to make sure your button has been inserted to the page before the click event is handled, otherwise the postback has no work to do.