Get selected Tab server-side

[Jeremy]

Hi

I was quite surprised when using the RadTabStrip1.SelectedTab in a button click event in server side code to find that the value was null. I guess it makes sense as whatever tab a user clicks is all handled client side.
I decided to use the following code to find the selected tab server side. I've set the first tab selected by default.

Please can you tell me is this the correct way - or is there something easier?

<telerik:RadTabStrip ID="RadTabStrip1" runat="server" MultiPageID="RadMultiPage1" OnTabClick="RadTabStrip1_TabClick">

   <Tabs>

      <telerik:RadTab Text="Tab1" Selected="true"/>

      <telerik:RadTab Text="Tab2" />

      <telerik:RadTab Text="Tab2" />

   </Tabs>

</telerik:RadTabStrip>

 

<telerik:RadMultiPage ID="RadMultiPage1" runat="server">

   <telerik:RadPageView ID="RadPageView1" runat="server" Width="100%" Selected="true">xxx</telerik:RadPageView>

   <telerik:RadPageView ID="RadPageView2" runat="server" Width="100%">yyy</telerik:RadPageView>

   <telerik:RadPageView ID="RadPageView3" runat="server" Width="100%">zzz</telerik:RadPageView>

</telerik:RadMultiPage>

<asp:Button ID="btnOk" runat="server" Text="OK" onclick="btnOk_Click" />

The server-side code:

public string CurrentPageViewID
{
  get
  {
    if (ViewState["CurrentPageViewID"] != null)
      return (string)ViewState["CurrentPageViewID"];
    else
      return "RadPageView1";
  }
  set
  {
    ViewState["CurrentPageViewID"] = value;
  }
}

protected void RadTabStrip1_TabClick(object sender, RadTabStripEventArgs e)
{
  //update current tab
  CurrentPageViewID = e.Tab.PageView.ID;
}

protected void btnOk_Click(object sender, EventArgs e)
{
  Response.Write("Current Tab PageView ID is " + CurrentPageViewID);
}

[Shinu]

Hello Jeremy,

Try the following code to access the selected Tab in the Button click event.
C#:

protected void btnOk_Click(object sender, EventArgs e)
  {
      RadTab rdTab =new RadTab();
      rdTab = RadTabStrip1.SelectedTab;
      Response.Write(RadTabStrip1.SelectedTab.Text);
  }

Thanks,
Shinu.

[Jeremy]

Thanks Shinu!

I see now I was trying to us the tab as a text value rather than the SelectedTab.Text value.

[Jeremy]

Hmmm after more testing actually it is still null if I use it from any other tab than "Tab1" which is selected by default?!?

[Jeremy]

An additional problem was that the selected tab was being lost on postback. I am now using my original code plus the extra below to make sure it stays selected

protected void Page_Load(object sender, EventArgs e)

{

   if (Page.IsPostBack)

   {

      RadTab rt = RadTabStrip1.FindTabByText(MyCurrentTabText); //global variable


      rt.SelectParents();

      rt.PageView.Selected = true;

   }

}