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:
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
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