Thank you for your help. In the process of trying to replicate the bug for
you, I figured out the problem. I have the controls in separate UpdatePanels.
The UpdateMode was set to Conditional. So when the ClientIDs would change,
they never get pushed to the client.
"Allen Chen [MSFT]" wrote:
Quote:
> Hi,
>
> I cannot reproduce this problem. My test code:
>
> Aspx:
> <asp:ScriptManager ID="ScriptManager1" runat="server">
> </asp:ScriptManager>
> <asp:UpdatePanel ID="UpdatePanel1" runat="server">
> <ContentTemplate>
> <asp:Panel ID="Panel1" runat="server">
> <asp:Button ID="Button1" runat="server" Text="Change
> Control"
> onclick="Button1_Click" />
> <asp:Label ID="Label1" runat="server"
> Text="Label"></asp:Label>
> </asp:Panel>
>
> </ContentTemplate>
> </asp:UpdatePanel>
>
> Aspx.cs:
> protected void Page_PreRender(object sender, EventArgs e)
> {
>
> if (!IsPostBack)
> {
> ScriptManager.RegisterStartupScript(this.UpdatePanel1,
> typeof(UpdatePanel), "allen"," <script type='text/javascript'>
> alert(document.getElementById('" +
> this.Label1.ClientID + "').tagName)</script>", false);
>
> }
> }
>
>
> protected void Button1_Click(object sender, EventArgs e)
> {
> TextBox t=new TextBox();
> this.Panel1.Controls.Clear();
> this.Panel1.Controls.Add(t);
> t.ID = "TextBox1";
> ScriptManager.RegisterStartupScript(this.UpdatePanel1,
> typeof(UpdatePanel), "allen"," <script type='text/javascript'>
> alert(document.getElementById('" + t.ClientID + "').tagName)</script>",
> false);
>
> }
>
> In the first page load you can see the message box showing "SPAN". If you
> click the button you'll see "INPUT".
> Could you test my code? Look forward to your test result.
>
> Regards,
> Allen Chen
> Microsoft Online Support
>
> Delighting our customers is our #1 priority. We welcome your comments and
> suggestions about how we can improve the support we provide to you. Please
> feel free to let my manager know what you think of the level of service
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> --------------------
> | Thread-Topic: Update Panel not updating DOM
> | thread-index: Ackqtv8n/5lXEfiiTgmq62x94GasSw==
> | X-WBNR-Posting-Host: 207.46.192.207
> | From: =?Utf-8?B?TUNN?= <MCM@xxxxxx>
> | Subject: Update Panel not updating DOM
> | Date: Fri, 10 Oct 2008 02:03:01 -0700
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> |
> | I have an asp.net page that contains an update panel. Within the update
> | panel, controls get added dynamically. During partial page post backs the
> | controls within the panel will change.
> |
> | I have a javascript function that uses the ClientID of the dynamic
> controls
> | to perform certain operations on the client-side. With each partial page
> post
> | back, I dynamically recreate the javascript function using the ClientIDs
> of
> | the newly added controls. I use ScriptManager.RegisterStartupScript to
> add
> | the newly created script to the page.
> |
> | Using debug, I stepped through and I can see that the controls and
> | javascript are all getting created correctly.
> |
> | The javascript function runs correctly on the initial page load. But, on
> a
> | partial page postback, it is throwing a null exception in the client
> | javascript because it is searching for a ClientID that does not exist.
> |
> | The DOM does not get updated with the new ClientIDs.
> |
> | How can I force the DOM to update on a partial page postback?
> |
>
>