[RESOLVED] Using the DataList WebControl?

**blakemckenna** · Sep 27th, 2010, 09:22 AM

I'm using the DataList WebControl for the first time. What I am wanting to do is dynamically load a datalist bound to a datasource with radiobuttons. This datalist control resides within a <div>. In design mode, everything looks great, however, when I run my web app...nothing appears. Do I need to associate the datalist control to the div by chance? I'm just not sure and I couldn't find any documentation that would lead me to believe that.

Thanks,

**danasegarane** · Sep 27th, 2010, 09:25 AM

Did you check the view source of that page, did the list showed up there ?

**gep13** · Sep 27th, 2010, 09:41 AM

Can you show the code, both the ASPX markup and the code that you are using?

Gary

**blakemckenna** · Sep 27th, 2010, 09:48 AM

What are you referring to when you say "viewsource"?

Here is my markup! The only thing that shows up in the Design Mode are the 2 sqlDataSources.

HTML Code:

<&#37;@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WebApplication1._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">
        <asp:Table ID="Table1" runat="server">
            <asp:TableRow runat="server" Width="100%">
                <asp:TableCell runat="server" Width="30%">
                    <asp:DataList ID="ddlGender" runat="server" RepeatColumns="3" RepeatDirection="Horizontal">
                        <ItemTemplate>
                            <asp:RadioButton ID="rdoGender" runat="server" style="padding:7px;"
                            text='<%# DataBinder.Eval(Container.DataItem,"Band_Value_Name") %>'/>
                        </ItemTemplate>
                    </asp:DataList>  
                </asp:TableCell>

                <asp:TableCell runat="server" Width="65%">
                    <asp:DataList ID="ddlFamilyComp" runat="server" RepeatColumns="5" RepeatDirection="Horizontal">
                        <ItemTemplate>
                            <asp:RadioButton id="rdoFamilyComp" runat="server" style="padding:7px;"
                                 text='<%# DataBinder.Eval(Container.DataItem,"Band_Value_Name") %>'></asp:RadioButton>
                        </ItemTemplate>
                    </asp:DataList>
                </asp:TableCell>
            </asp:TableRow>
        </asp:Table>

    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:OA_ConfigurationConnectionString %>" 
        SelectCommand="SELECT [Band_Value_Name] FROM [Band_Value_Bkup] WHERE ([Band_ID] = @Band_ID)">
        <SelectParameters>
            <asp:Parameter DefaultValue="4" Name="Band_ID" Type="Int32" />
        </SelectParameters>
    </asp:SqlDataSource>
    <asp:SqlDataSource ID="SqlDataSource2" runat="server" 
        ConnectionString="<%$ ConnectionStrings:OA_ConfigurationConnectionString %>" 
        SelectCommand="SELECT [Band_Value_Name] FROM [Band_Value_Bkup] WHERE ([Band_ID] = @Band_ID)">
        <SelectParameters>
            <asp:Parameter DefaultValue="3" Name="Band_ID" Type="Int32" />
        </SelectParameters>
    </asp:SqlDataSource>
    </form>
</body>
</html>

**gep13** · Sep 27th, 2010, 09:56 AM

Where are you setting the DataSource property of the DataList?

Gary

**blakemckenna** · Sep 27th, 2010, 10:06 AM

Gary,

I guess I'm not. I thought by using the RadioButtons and then assigning a datasource to the RadioButtons was accomplishing that. I'm using 2 SqlDataSources. I just tried setting the DataSource property of both DataLists to the appropriate SqlDataSources. When I ran the app, I got the error message "The 'DataSource' property cannot be set declaratively". Here is the updated markup:

HTML Code:

<&#37;@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WebApplication1._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">
        <asp:Table ID="Table1" runat="server">
            <asp:TableRow runat="server" Width="100%">
                <asp:TableCell runat="server" Width="30%">
                    <asp:DataList ID="ddlGender" runat="server" DataSource="SqlDataSource2" RepeatColumns="3" RepeatDirection="Horizontal">
                        <ItemTemplate>
                            <asp:RadioButton ID="rdoGender" runat="server" style="padding:7px;"
                            text='<%# DataBinder.Eval(Container.DataItem,"Band_Value_Name") %>'/>
                        </ItemTemplate>
                    </asp:DataList>  
                </asp:TableCell>

                <asp:TableCell runat="server" Width="65%">
                    <asp:DataList ID="ddlFamilyComp" runat="server" DataSource="SqlDataSource1 RepeatColumns="5" RepeatDirection="Horizontal">
                        <ItemTemplate>
                            <asp:RadioButton id="rdoFamilyComp" runat="server" style="padding:7px;"
                                 text='<%# DataBinder.Eval(Container.DataItem,"Band_Value_Name") %>'></asp:RadioButton>
                        </ItemTemplate>
                    </asp:DataList>
                </asp:TableCell>
            </asp:TableRow>
        </asp:Table>

    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:OA_ConfigurationConnectionString %>" 
        SelectCommand="SELECT [Band_Value_Name] FROM [Band_Value_Bkup] WHERE ([Band_ID] = @Band_ID)">
        <SelectParameters>
            <asp:Parameter DefaultValue="4" Name="Band_ID" Type="Int32" />
        </SelectParameters>
    </asp:SqlDataSource>
    <asp:SqlDataSource ID="SqlDataSource2" runat="server" 
        ConnectionString="<%$ ConnectionStrings:OA_ConfigurationConnectionString %>" 
        SelectCommand="SELECT [Band_Value_Name] FROM [Band_Value_Bkup] WHERE ([Band_ID] = @Band_ID)">
        <SelectParameters>
            <asp:Parameter DefaultValue="3" Name="Band_ID" Type="Int32" />
        </SelectParameters>
    </asp:SqlDataSource>
    </form>
</body>
</html>

**gep13** · Sep 27th, 2010, 02:37 PM

Hey,

You can find the documentation for the DataList here:

http://msdn.microsoft.com/en-us/libr...(v=VS.85).aspx

Trying doing this in the server side code:

Code:

Me.ddlGender = Me.SqlDataSource2

Gary

**blakemckenna** · Sep 27th, 2010, 03:23 PM

Thanks Gary...I'll take a peek at it!

**gep13** · Sep 28th, 2010, 01:36 AM

Did you get this working Blake? I see you have marked the thread resolved.

Did setting the DataSource in the code behind work for you?

Gary

**blakemckenna** · Sep 28th, 2010, 08:54 AM

I did get it working Gary, however, I went to a RadioButtonList which worked great!

Thanks,

**gep13** · Sep 28th, 2010, 09:23 AM

Ah, yes, I read your other thread after I posted in this one.

Gary

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