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RadTabStrip inside FormView

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TabStrip

This is a migrated thread and some comments may be shown as answers.

Leoš asked on 01 Aug 2011, 12:15 PM

Hello,

I've noticed a buggy behaviour using Telerik RadTabStrip inside ASP.NET FormView. First of all, I tried to create an example without FormView and everything worked fine. Then I put RadTabStrip and RadMultiPage inside EditItemTemplate of FormView and a problem occured.

I have 3 tabs, and when I set one of them Visible to false in Page.PreRender event, for the first time, the tab is not rendered. But after postback, even though the value is correctly loaded from viewstate and the Visible property is false (according to debugger), the tab is unexpectably rendered.

Here is the code:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="TestTabStrip.Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server" />

<asp:FormView ID="fvSystemConfig" DefaultMode="Edit" DataSourceID="odsDS" RenderOuterTable="false" runat="server">

<EditItemTemplate>

<telerik:RadTabStrip ID="rts" runat="server" MultiPageID="rmp">

<Tabs>

<telerik:RadTab Text="Core" PageViewID="rpv1" />

<telerik:RadTab Text="UI" PageViewID="rpv2" />

<telerik:RadTab Text="Export" PageViewID="rpv3" />

</Tabs>

</telerik:RadTabStrip>

<telerik:RadMultiPage ID="rmp" SelectedIndex="0" CssClass="RadTabStripMultipage" runat="server">

<telerik:RadPageView ID="rpv1" runat="server">

<asp:TextBox ID="tb" Text='<%# Bind("Name") %>' runat="server" />

</telerik:RadPageView>

<telerik:RadPageView ID="rpv2" runat="server">

B

</telerik:RadPageView>

<telerik:RadPageView ID="rpv3" runat="server">

C

</telerik:RadPageView>

</telerik:RadMultiPage>

<asp:Button ID="Button1" CommandName="Update" Text="Save" runat="server" />

</EditItemTemplate>

</asp:FormView>

<asp:ObjectDataSource ID="odsDS" runat="server" SelectMethod="GetData" TypeName="TestTabStrip.Default" UpdateMethod="UpdateData" />

</div>

</form>

</body>

</html>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Telerik.Web.UI;

using System.Collections;

namespace TestTabStrip

{

public partial class Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected override void OnPreRender(EventArgs e)

{

((RadTabStrip)fvSystemConfig.Row.FindControl("rts")).Tabs[1].Visible = false;

base.OnPreRender(e);

}

public IEnumerable GetData()

{

return new List<object> { new { Name = "testing text" } };

}

public void UpdateData(string name)

{

}

The version that I am using is 2010 Q3. Please let me know, if the bug has been repaired in the newer version, but in the very moment, I cannot test it in newer one.

Thank you for your response.

Best regards,
Leoš

RadTabStrip inside FormView

2 Answers, 1 is accepted