TabStrip / Load on Demand RadPageView

This example demonstrates how to fetch the contents of RadMultiPage on demand using Ajax. RadTabStrip is ajaxified and page views are created on demand in the TabClick event handler:

private void AddPageView(string pageViewID)
{
    RadPageView pageView = new RadPageView();
    pageView.ID = pageViewID;
    RadMultiPage1.PageViews.Add(pageView);
}

protected void RadTabStrip1_TabClick(object sender, RadTabStripEventArgs e)
{
    AddPageView(e.Tab.Text);
    e.Tab.PageView.Selected = true;
}

Private Sub AddPageView(ByVal pageViewID As String)
    Dim pageView As New RadPageView()
    pageView.ID = pageViewID
    RadMultiPage1.PageViews.Add(pageView)
End Sub

Protected Sub RadTabStrip1_TabClick(ByVal sender As Object, ByVal e As RadTabStripEventArgs) Handles RadTabStrip1.TabClick
    AddPageView(e.Tab.Text)
    e.Tab.PageView.Selected = True
End Sub

Ajax requests are canceled for tabs whose corresponding pageviews have been loaded. This is done by setting the postBack client-side property of the tabs during the OnClientTabSelecting event:

<script type="text/javascript">
function onTabSelecting(sender, args)
{
    if (args.get_tab().get_pageViewID())
    {
        args.get_tab().set_postBack(false);
    }
}
</script>