DataGridView + SqlData Source Madness - asp.net

Question

I am trying to populate data from a table created in aspnetdb.mdf that has game data stored in it, which has a uniqueidentifier that is UserId that is the users Asp Membership UserId. I want to select the users data from the table using a SqlDataSource and populate it into the DataGridView.
I have read thread after thread, and MSDN documentation, and for the life of me I can't get this joker to work. The DataGridView isn't even displayed, just a blank screen. In the designer I can see the columns I wan't to select.. Here is the code. If anyone has an idea, answer, or anything I would greatly appreciate it.
I have tried switching the parameter data types and just about anything I can think of, but that didn't work
In code behind:
protected void userGameData_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
{
MembershipUser User = Membership.GetUser();
object UserGUID = User.ProviderUserKey;
userGameData.SelectParameters["UserId"].DefaultValue = UserGUID.ToString();
}
in aspx
<form id="frm" runat="server">
<asp:SqlDataSource ID="userGameData" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand="SELECT [cycleday], [playerwins], [housewins], [gametype], [gamedate], [phase] FROM [GameData] WHERE ([UserId] = #UserId)" OnSelecting="userGameData_Selecting">
<SelectParameters>
<asp:Parameter Name="UserId" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:GridView ID="rawGameResults" runat="server" AutoGenerateColumns="False" DataSourceID="userGameData">
<Columns>
<asp:BoundField DataField="cycleday" HeaderText="cycleday" SortExpression="cycleday" />
<asp:BoundField DataField="playerwins" HeaderText="playerwins" SortExpression="playerwins" />
<asp:BoundField DataField="housewins" HeaderText="housewins" SortExpression="housewins" />
<asp:BoundField DataField="gametype" HeaderText="gametype" SortExpression="gametype" />
<asp:BoundField DataField="gamedate" HeaderText="gamedate" SortExpression="gamedate" />
<asp:BoundField DataField="phase" HeaderText="phase" SortExpression="phase" />
</Columns>
</asp:GridView>
</form>

Answer 1

Maybe the bind is not working from the markup, I would try it from code-behind
string sql = "SELECT [cycleday], [playerwins], [housewins], [gametype], [gamedate], [phase] FROM [GameData] WHERE UserId = (SELECT [UserId] FROM aspnet_users WHERE UserName = '" & User.Identity.Name & "')";
using (SqlConnection myConnection = new SqlConnection(connectionString))
{
using (SqlCommand myCommand = new SqlCommand(sql, myConnection))
{
myConnection.Open();
using (SqlDataReader myReader = myCommand.ExecuteReader())
{
DataTable myTable = new DataTable();
myTable.Load(myReader);
myConnection.Close();
YourDataGridView.DataSource = myTable;
YourDataGridView.DataBind();
}
}
}
Set connectionString to the CS you are using in your project :)