<PostBackOptions EnableLoadOnDemand="True" />
WebTab™ handles a large number of tabs without incurring a loss in performance with its load-on-demand feature enabled.
From the Visual Studio™ Toolbox, drag and drop a ScriptManager component and a WebTab control onto the page.
Add tabs to WebTab as shown in the Adding Tabs to the WebTab topic.
In the Properties window expand PostBackOptions ; select the EnableLoadOnDemand property and set it to True to enable the load-on-demand feature in the WebTab. You can also enable this feature through the following code:
In HTML:
<PostBackOptions EnableLoadOnDemand="True" />
In Visual Basic:
WebTab1.PostBackOptions.EnableLoadOnDemand = True
In C#:
WebTab1.PostBackOptions.EnableLoadOnDemand = true;
Save and run your application. You will observe that the content of a tab is fetched as the tab is selected.