How can I force a specific button in a Toolbar to do a full postback within an UpdatePanel?

[Scott]

Hello,

I would like to know how to go about adding code or a property to a button on a radToolbar that would force a FULL postback, even though the radToolbar is contained within an UpdatePanel?

I need this because I am writing a file to the browser upon postback and I cannot do that unless a FULL postback occurs.

Thank you.

[Shinu]

Hello Scott,


Here I found a relevant documentation. Please go through this and see whether it helps.
Exclude controls from ajaxifying


-Shinu.

[Scott]

I've seen that post before, however, it doesn't QUITE solve my problem.

My problem is that I need to do something for a radToolbarButton WITHIN a radToolbar.  I can take advantage of the OnClientButtonClicking event of the Toolbar to inspect WHICH button was clicked, but I am unsure as to what to put IN this function to force a full postback.

Your guidance would be welcomed.

[Yana]

Hello Scott,

You can use RadAjaxManager's set_enableAjax()  client method to enable/disable the ajax in OnClientButtonClicking event handler.

Regards,
Yana
the Telerik team

[Scott]

I'm sorry.  I should have indicated in my original post that I am using the ScriptManager from the .NET Framework rather than the RadAjaxManager.  Actually, with .NET 4.0, we are using the ToolkitScriptManager.

Can you please help me with a solution that will allow me to cause a radToolbarButton WITHIN a radToolbar to do a full postback, while using the STANDARD .NET ScriptManager?

I can take advantage of the OnClientButtonClicking event of the Toolbar to inspect WHICH button was clicked, but I am unsure as to what to put IN this function to force a full postback.

[Scott]

Ah, I found a solution.

1. Inside the UpdatePanel, I created a standard ASP:Button control and set the visibility to hidden.
<asp:Button ID="btnHiddenButton" runat="server" Text="Hidden" CausesValidation="false" OnClick="btnHiddenButton_Click" Style="display: none; visibility: hidden;" />

2. I added a PostBackTrigger for that Button
        <Triggers>
            <asp:PostBackTrigger ControlID="btnHiddenButton" />
        </Triggers>

3. In the OnClientButtonClicking event of the toolbar, I cancel the click event of the toolbar button and call the .click() event of the button.

	<script type="text/javascript">
		function radActions_OnClientClicking(sender, args) {
			var button = args.get_item();
 
			switch (button.get_value()) {
	                    case "idToolbarButtonToClick":
                                // cancel the toolbar button click and call the click event of the hidden button, so we can cause a FULL Postback
	                        args.set_cancel(true);
	                        document.getElementById("<%=btnHiddenButton.ClientID%>").click();
	                        break;
			}
		}
	</script>

In my code-behind, I had an event handler setup for the button to do what I wanted.

Results:  FULL Page Postback via one toolbar button.