Radgrid with data function

gistfile1.txt

    <telerik:RadGrid ID="RadGrid1" runat="server" Skin="Hay" Width="582px" AutoGenerateColumns="False">
            <MasterTableView >
            <Columns>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn" DataField="month">
            <ItemTemplate>
                <asp:Label ID="Label1" runat="server" Text='<%# Eval("month")%>'>></asp:Label>
            </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn1" DataField="D1">
            <HeaderTemplate>
                <asp:Button ID="Button21" runat="server" Text="D1" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("D1")%>'></asp:Label>
            </ItemTemplate>
            <HeaderStyle HorizontalAlign="Center" />
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn2" DataField="D2">
             <HeaderTemplate>
                <asp:Button ID="Button22" runat="server" Text="D2" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("D2")%>'></asp:Label>
            </ItemTemplate>
             <HeaderStyle HorizontalAlign="Center" />
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn3" DataField="D3">
             <HeaderTemplate>
                <asp:Button ID="Button23" runat="server" Text="D3" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("D3")%>'></asp:Label>
            </ItemTemplate>
             <HeaderStyle HorizontalAlign="Center" />
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn4" DataField="D4">
             <HeaderTemplate>
                <asp:Button ID="Button24" runat="server" Text="D4" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("D4")%>'></asp:Label>
            </ItemTemplate>
             <HeaderStyle HorizontalAlign="Center" />
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn5" DataField="D5">
             <HeaderTemplate>
                <asp:Button ID="Button25" runat="server" Text="D5" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("D5")%>'></asp:Label>
            </ItemTemplate>
             <HeaderStyle HorizontalAlign="Center" />
        </telerik:GridTemplateColumn>
        <telerik:GridTemplateColumn UniqueName="TemplateColumn6" DataField="D6">
             <HeaderTemplate>
                <asp:Button ID="Button26" runat="server" Text="D6" />
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Label ID="Label2" runat="server" Text='<%# Eval("D6")%>'></asp:Label>
            </ItemTemplate>
             <HeaderStyle HorizontalAlign="Center" />
        </telerik:GridTemplateColumn>
    </Columns>
</MasterTableView>
    </telerik:RadGrid>
  

gistfile2.txt

    Private Function Data() As DataSet
        Dim text As String = "SELECT month,D1,D2,D3,D4,D5,D6 FROM Test1 "
        Dim cmd As New SqlCommand(text, con)
        con.Open()
        Dim da As New SqlDataAdapter(cmd)
        Dim ds As New DataSet()
        da.Fill(ds)
        con.Close()
        Return ds
    End Function