AJAX Tabs stack together when AsyncPostBackTrigger

Hello,

On my WebPage, there is a DropDownList shows a list of categories, when selected, a GridView show records based on that selected category.

for each row of the GridView, it shows AJAX Tabs with 3 TabPanels, user can click on each tab to view information.

the problem:

When I wire up the AsyncPostBackTrigger, between the DropDownList and GridView, and run it, the 3 tabs in each row are all stacked one on top of each other, If I don't wire up the Trigger, it shows OK.

Please refer to attached Code, and screenshots, the left side is before the wireup and hte right is after.

Anybody has encounted the same problem?

Please advise,

Thank you

1<asp:ScriptManager ID="ScriptManager1" runat="server">2</asp:ScriptManager>34<asp:DropDownList ID="ddl1" runat="server" AutoPostBack="true">5<asp:ListItem Text="--Select a Category--" Value="0"></asp:ListItem>6<asp:ListItem Text="Category 1" Value="1"></asp:ListItem>7<asp:ListItem Text="Category 2" Value="2"></asp:ListItem>8<asp:ListItem Text="Category 3" Value="3"></asp:ListItem>9</asp:DropDownList>1011<br />1213<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="always">14<Triggers>15<asp:AsyncPostBackTrigger ControlID="ddl1" EventName="SelectedIndexChanged" />16</Triggers>17<ContentTemplate>18<asp:GridView ID="gdvResearch" runat="server" AllowSorting="True" AutoGenerateColumns="False"19DataKeyNames="ResearchID" Width="100%" EnableViewState="False">21<Columns>24<asp:TemplateField>25<ItemTemplate>26<cc1:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="0" Height="445px" Width="100%">27<cc1:TabPanel ID="TabPanel1" runat="server" Width="100%">28<HeaderTemplate>29<asp:Label ID="lblTab1" runat="Server" Text="<%$Resources:tab.1%>"></asp:Label>30</HeaderTemplate>31<ContentTemplate>32<div>33<!-- Information in Tab1... -->34</div>35</ContentTemplate>36</cc1:TabPanel>37<cc1:TabPanel ID="TabPanel2" runat="server">38<HeaderTemplate>39<asp:Label ID="lblTab2" runat="Server" Text="<%$Resources:tab.2%>"></asp:Label>40</HeaderTemplate>41<ContentTemplate>42<div>43<!-- Information in Tab2... -->44</div>45</ContentTemplate>46</cc1:TabPanel>47<cc1:TabPanel ID="TabPanel3" runat="server">48<HeaderTemplate>49<asp:Label ID="lblTab3" runat="Server" Text="<%$Resources:tab.3%>"></asp:Label>50</HeaderTemplate>51<ContentTemplate>52<div>53<!-- Information in Tab3... -->54</div>55</ContentTemplate>56</cc1:TabPanel>57</cc1:TabContainer>58</ItemTemplate>59</asp:TemplateField>60</Columns>61</asp:GridView>62</ContentTemplate>63</asp:UpdatePanel>

Hi,

Would you mind posting your code again without line number? It's hard to eliminate them.

OK, there you go.

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager><asp:DropDownList ID="ddl1" runat="server" AutoPostBack="true"><asp:ListItem Text="--Select a Category--" Value="0"></asp:ListItem><asp:ListItem Text="Category 1" Value="1"></asp:ListItem><asp:ListItem Text="Category 2" Value="2"></asp:ListItem><asp:ListItem Text="Category 3" Value="3"></asp:ListItem></asp:DropDownList><br /><asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="always"><Triggers><asp:AsyncPostBackTrigger ControlID="ddl1" EventName="SelectedIndexChanged" /></Triggers><ContentTemplate><asp:GridView ID="gdvResearch" runat="server" AllowSorting="True" AutoGenerateColumns="False"DataKeyNames="ResearchID" Width="100%" EnableViewState="False" ><Columns><asp:TemplateField><ItemTemplate><cc1:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="0" Height="445px" Width="100%"><cc1:TabPanel ID="TabPanel1" runat="server" Width="100%"><HeaderTemplate><asp:Label ID="lblTab1" runat="Server" Text="<%$Resources:tab.1%>"></asp:Label></HeaderTemplate><ContentTemplate><div><!-- Information in Tab1... --></div></ContentTemplate></cc1:TabPanel><cc1:TabPanel ID="TabPanel2" runat="server"><HeaderTemplate><asp:Label ID="lblTab2" runat="Server" Text="<%$Resources:tab.2%>"></asp:Label></HeaderTemplate><ContentTemplate><div><!-- Information in Tab2... --></div></ContentTemplate></cc1:TabPanel><cc1:TabPanel ID="TabPanel3" runat="server"><HeaderTemplate><asp:Label ID="lblTab3" runat="Server" Text="<%$Resources:tab.3%>"></asp:Label></HeaderTemplate><ContentTemplate><div><!-- Information in Tab3... --></div></ContentTemplate></cc1:TabPanel></cc1:TabContainer></ItemTemplate></asp:TemplateField></Columns></asp:GridView></ContentTemplate></asp:UpdatePanel>

I tried your code on my page, but can't reproduce the issue.

Here is my page, please try it to see if it works on your side.

<%@. Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server"> protected void Page_Load(object sender, EventArgs e) { Northwind nt = new Northwind(); // the object used to get data from NorthWind database System.Data.DataTable dt = nt.GetBasicInformationOfAllEmployees(); gdvResearch.DataSource = dt; gdvResearch.DataBind(); }</script><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"> <title>Untitled Page</title></head><body> <form id="form1" runat="server"> <div> <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager><asp:DropDownList ID="ddl1" runat="server" AutoPostBack="true"><asp:ListItem Text="--Select a Category--" Value="0"></asp:ListItem><asp:ListItem Text="Category 1" Value="1"></asp:ListItem><asp:ListItem Text="Category 2" Value="2"></asp:ListItem><asp:ListItem Text="Category 3" Value="3"></asp:ListItem></asp:DropDownList><br /><asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="always"><Triggers><asp:AsyncPostBackTrigger ControlID="ddl1" EventName="SelectedIndexChanged" /></Triggers><ContentTemplate><asp:GridView ID="gdvResearch" runat="server" AllowSorting="True" AutoGenerateColumns="False"Width="100%" EnableViewState="False" ><Columns><asp:TemplateField><ItemTemplate><ajaxtoolkit:TabContainer ID="TabContainer1" runat="server" ActiveTabIndex="0" Height="445px" Width="100%"><ajaxtoolkit:TabPanel ID="TabPanel1" runat="server" Width="100%"><HeaderTemplate><asp:Label ID="lblTab1" runat="Server" Text="aa"></asp:Label></HeaderTemplate><ContentTemplate><div><!-- Information in Tab1... --></div></ContentTemplate></ajaxtoolkit:TabPanel><ajaxtoolkit:TabPanel ID="TabPanel2" runat="server"><HeaderTemplate><asp:Label ID="lblTab2" runat="Server" Text="bb"></asp:Label></HeaderTemplate><ContentTemplate><div><!-- Information in Tab2... --></div></ContentTemplate></ajaxtoolkit:TabPanel><ajaxtoolkit:TabPanel ID="TabPanel3" runat="server"><HeaderTemplate><asp:Label ID="lblTab3" runat="Server" Text="cc"></asp:Label></HeaderTemplate><ContentTemplate><div><!-- Information in Tab3... --></div></ContentTemplate></ajaxtoolkit:TabPanel></ajaxtoolkit:TabContainer></ItemTemplate></asp:TemplateField></Columns></asp:GridView></ContentTemplate></asp:UpdatePanel> </div> </form></body></html>

Just trying...

What if you wrap your updatepanel inside something with a fixed width, like a table... I think your gridview's width of 100% "isn't sure" where to take the 100%... Also try giving your TabContainer a fixed width (in px)...