Event in User Control

I have a problem with button event in web user control

First i have an aspx like this:

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;

<html xmlns="http://www.w3.org/1999/xhtml"&gt;
<head runat="server">
    <title></title>
    <script src="js/jquery-1.4.2.min.js" type="text/javascript"></script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <div id="divContent" runat="server">
    </div>
    </form>    
</body>
</html>

As you see i have a ScriptManager to do with ASP.NET AJAX, a div with ID divContent to load controls, then in code behind:

protected void Page_Load(object sender, EventArgs e)
{
    divContent.Controls.Add(LoadControl("~/thitai/addtest.ascx"));
}

I add addtest.ascx to divContent as you see, and this is the code of addtest.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="addtest.ascx.cs" Inherits="thitai.addtest" %>
<asp:UpdatePanel ID="updatePanel" runat="server" ClientIDMode="Static">
    <ContentTemplate>
        <input type="button" value="Load text" onclick="updPanel('text');return false;" />
        <input type="button" value="Load image" onclick="updPanel('image');return false;" />
        <asp:HiddenField ID="hftype" runat="server" ClientIDMode="Static" />
        <div>
            <asp:PlaceHolder ID="plhControl" runat="server"></asp:PlaceHolder>
        </div>
        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </ContentTemplate>
</asp:UpdatePanel>
<script type="text/javascript">
    function updPanel(type) {
        $("#hftype").val(type);
        __doPostBack("updatePanel", "");
    }
</script>

Each time i click on Load text button, i change the value of hfType (hidden field) then do postback to server using UpdatePanel, then this is code behind

protected override void OnPreRender(EventArgs e)
{
     string type = hftype.Value;
     switch (type)
     {
                case "text":
                    plhControl.Controls.Add(LoadControl("~/thitai/test/text.ascx"));
                    break;
                case "image":
                    plhControl.Controls.Add(LoadControl("~/thitai/test/image.ascx"));
                    break;
                default:
                    plhControl.Controls.Add(LoadControl("~/thitai/test/text.ascx"));
                    break;
     }
     base.OnPreRender(e);
}

This is the code of text.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="text.ascx.cs" Inherits="thitai.test.text" %>
<%@ Register Assembly="Support" Namespace="Support.CustomEditor" TagPrefix="Editor" %>
<Editor:CustomEditor ID="edNoidung" runat="server" NoScript="True" Content=""
    Height="500" ActiveMode="Design" NoUnicode="True" InitialCleanUp="False" />
<div>
    <asp:Button ID="Button1" runat="server" Text="Show HTML" 
        onclick="Button1_Click" />
</div>
<div id="showHtml" runat="server"></div>

And code behind of text.ascx

protected void Button1_Click(object sender, EventArgs e)
{
    showHtml.InnerHtml = edNoidung.Content;
}

The problem is: when i click to button1, the page do a postback using AJAX but event Button1_Click DOES NOT FIRE!

Any idea for this?

Still does not work, pls take notice that i am using UpdatePanel to postback!!!

Chrno Love 2010-10-21 08:57:36

I still believe it to be related to order of event execution. But you may try alternate way to decide if button has been clicked - see my edit in the answer.

VinayC 2010-10-21 09:16:50

You're right, your code work perfectly but the event Button1_Click still does not work! And 1 more thing, as you see in my text.ascx, i have a Editor, you can change it to textbox, when i fill it with some text, then postback it to server, i can't get it!!! :(

Chrno Love 2010-10-21 09:58:42

Do you must load addtest.ascx dynamically? If yes, try loading it in page_init instead of page_load.

VinayC 2010-10-21 11:19:57

yay i got it now, thanks VinayC, really appreciate ^^!

Chrno Love 2010-10-22 02:47:11

ansaurus

tags:

views:

answers:

Event in User Control

related questions