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ASP.NET 3.5 Basics If you are new to ASP or ASP.NET programming with version 3.5, this is the forum to begin asking questions. Please also see the Visual Web Developer 2008 forum.
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Old November 30th, 2009, 11:40 AM
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Question Can I Nest a DataList Within a LoginView's RoleGroup?

I need to know if you can nest a datalist within a LoginView's RoleGroup. I have two separate datalists, and I want to show one for admin users, and another for dept-specific users using ASP.NET Membership. Here is what I have:

Code:
<asp:LoginView ID="LoginView1" runat="server">
        <LoggedInTemplate>
            Below is a list of jobs:
        </LoggedInTemplate>
        <RoleGroups>
            <asp:RoleGroup Roles="Public Works">
                <ContentTemplate>
                    <!-- DEPT-SPECIFIC DATALIST GOES HERE -->
            <asp:DataList ID="dlJobs_depts" runat="server">
                <ItemTemplate><asp:Label ID="lblJobTitle" runat="server" /></ItemTemplate>
            </asp:DataList>
                </ContentTemplate>
            </asp:RoleGroup>
            <asp:RoleGroup Roles="Power Admin">
                <ContentTemplate>
                    <!-- ADMIN DATALIST GOES HERE -->
            <asp:DataList ID="dlJobs_admin" runat="server">
                <ItemTemplate><asp:Label ID="lblJobTitle" runat="server" /></ItemTemplate>
            </asp:DataList>
                </ContentTemplate>
            </asp:RoleGroup>
        </RoleGroups>
    </asp:LoginView>
And this is the resulting error: Compiler Error Message: BC30451: Name 'dlJobs_admin' is not declared.

So my questions are:

* Is there a way to do this?
* If not, what would be an alternative?
* If so, what am I doing wrong?

Thanks for any and all help.
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Old November 30th, 2009, 03:52 PM
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Default

Since you can now have (or in fact, you do already have) multiple controls with the same name in different scopes, you can no longer access them directly in your code. Instead, you need to use FindControl on the LoginView to "find" your DataList control:

C#
DataList myList = LoginView1.FindControl("dlJobs_admin") as DataList;
if (myList != null)
{
// Use myList here
...
}

VB
Dim myList As DataList = TryCast(LoginView1.FindControl("dlJobs_admin"), DataList)
If myList IsNot Nothing Then
' Use myList here
End If

Untested, written in this post's message window but it should do the trick.

Cheers,

Imar

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