Solved

asp DataList SelectedItemTemplate out of step

Posted on 2011-09-17
2
247 Views
Last Modified: 2012-08-14
I have a datalist listing a number of records (record1, 2, 3 etc). There is an ItemTemplate and a SelectedItemTemplate, each identified by a literal value, and a field from the data.

I want to click the Linkbutton and display the SelectedItemTemplate for the selected record. However, the display of the SelectedItemTemplate is out of step by one: if I click the linkbutton for record2, nothing changes. If I click the linkbutton for record4, the SelectedItemTemplate for record 2 is displayed. If I click the linkbutton for record8, the SelectedItemTemplate for record 4 is displayed. The  SelectedItemTemplate is always one behind the record I last selected.

Code is attached. Am I doing something silly or stupid?
<%@ Page Language="VB" MasterPageFile="~/Partner/PartnerMasterPage2.master" Title="Tenant Assistance Program" StylesheetTheme="Theme1" %>
<script runat="server">
    
</script>
<asp:Content ID="Content1" ContentPlaceHolderID="contentPlaceHolder1" Runat="Server">

    <asp:Panel ID="pnlMulti" runat="server">
        <asp:DataList ID="lstTenants" runat="server" DataKeyField="Tenant_ID" 
        DataSourceID="SqlDataTenantNames" Width="485px" >

            <ItemTemplate>
                ITEM Template:<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Select" 
                    CssClass="lblBuildingTitle2" Text='<%# Eval("Tenant_Name") %>'></asp:LinkButton>
                <br />
            </ItemTemplate>

            <SelectedItemTemplate>
                SELECTED Template:<asp:Label ID="Tenant_NameLabel" runat="server" CssClass="lblBuildingTitle2" 
                    Text='<%# Eval("Tenant_Name") %>' />
                    <br />
            </SelectedItemTemplate>

        </asp:DataList>
    </asp:Panel>

    <asp:SqlDataSource ID="SqlDataTenantNames" runat="server" 
        ConnectionString="<%$ ConnectionStrings:dbCOMPASSConnectionString %>" 
        SelectCommand="SELECT Building_ID, Tenant_ID, Tenant_Name FROM tblPartnerBuildingTenants WHERE (Building_ID = @Building_ID) ORDER BY Sort_Seq, Tenant_Name">
        <SelectParameters>
            <asp:SessionParameter Name="Building_ID" SessionField="Building_ID" />
        </SelectParameters>
    </asp:SqlDataSource>
</asp:Content>

Open in new window

0
Comment
Question by:slimguy
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 16

Accepted Solution

by:
Easwaran Paramasivam earned 250 total points
ID: 36558296
In the Item_Command set the Selectedindex of it as ItemsList.SelectedIndex = e.Item.ItemIndex;

Refer the link:
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.datalist.selecteditemtemplate.aspx

0
 

Author Closing Comment

by:slimguy
ID: 36558736
Thanks, it wasn't obvious that I needed to manually set the SelectedIndex value. The answer didn't work exactly as suggested in the msdn sample - I had another datalist and datasource in the SelectedItemTemplate that errored with a missing container. Putting the  DataBind into the Page_PreRender instead fixed it (possibly not elegant, but worked).
0

Featured Post

Salesforce Has Never Been Easier

Improve and reinforce salesforce training & adoption using WalkMe's digital adoption platform. Start saving on costly employee training by creating fast intuitive Walk-Thrus for Salesforce. Claim your Free Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In .NET 2.0, Microsoft introduced the Web Site.  This was the default way to create a web Project in Visual Studio 2005.  In Visual Studio 2008, the Web Application has been restored as the default web Project in Visual Studio/.NET 3.x The Web Si…
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

687 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question