TabStrip server validation.

[Silvio Silva Junior]

Hello guys.

In tabclick event how can I refuse to change tabs, based in a condition?

Regards.

[Shinu]

Hello Silvio,

I guess you can accomplish the functionality by adding CustomValidator on page and check for the condition in the 'ServerValidate' event. Here is the code snippet that I tried for similar scenario.

ASPX:

<telerik:RadTabStrip ID="RadTabStrip1" runat="server" AutoPostBack="True" OnTabClick="RadTabStrip1_TabClick"
    SelectedIndex="1" CausesValidation="True" ValidationGroup="LoginValidationGroup">
    <Tabs>
      . . .
    </Tabs>
</telerik:RadTabStrip>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="CustomValidator"
    ValidationGroup="LoginValidationGroup" OnServerValidate="CustomValidator1_ServerValidate">
</asp:CustomValidator>

C#:

    protected void RadTabStrip1_TabClick(object sender, Telerik.Web.UI.RadTabStripEventArgs e)
    {
        if (Page.IsValid)
        {
            Response.Write("Valid");
        }
    }
    protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args)
    {
        if (TextBox1.Text == "") // Cehck for condition here
        {
            args.IsValid = false;
        }
    }

-Shinu.