RadAjax for ASP.NET AJAX

If you want to perform a single postback instead of AJAX request, arguments.EnableAjax should be false:

In the code-behind:

• C#
• VB

CopyC#

if (!RadAjaxManager1.EnableAJAX)
{
    RadAjaxManager1.ClientEvents.OnRequestStart = "OnRequestStart";
}

CopyVB

If Not RadAjaxManager1.EnableAJAX Then
    RadAjaxManager1.ClientEvents.OnRequestStart = "OnRequestStart"
End If

On the client:

CopyJavaScript

function OnRequestStart(sender, args) {
    args.set_enableAjax(false); 
}

This approach is useful only when you want to perform a single postback. If you want to disable ajax because of unsupported browsers or old versions of supported ones we suggest you to do this on the server:

• C#
• VB

CopyC#

RadAjaxManager1.EnableAJAX = Page.Request.Browser.SupportsXmlHttp;

CopyVB

RadAjaxManager1.EnableAJAX = Page.Request.Browser.SupportsXmlHttp