Question

I tried retrieving the user’s data based on the logged in UserId, but no progress. Any suggestions?

protected void SqlDataSource1_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
{
    // Get a reference to the currently logged on user  
    MembershipUser currentUser = Membership.GetUser();    

    // Determine the currently logged on user's UserId value   
    Guid currentUserId = (Guid)currentUser.ProviderUserKey;   

    // Assign the currently logged on user's UserId to the @UserId parameter     
    e.Command.Parameters["@UserId"].Value = currentUserId; 
}

And this is the SqlDataSource

  <asp:SqlDataSource ID="SqlDataSource1" runat="server"
      ConnectionString='<%$ ConnectionStrings:NaviConnectionString %>' 
    SelectCommand="SELECT [UserId], [FirstName], [LastName] FROM [UserProfiles] WHERE ([UserId]  = @UserId)">
    <SelectParameters>
        <asp:Parameter Name="UserId" Type="String"></asp:Parameter>
    </SelectParameters>
  </asp:SqlDataSource>

And this is the GridView

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
               DataKFFeyNames="UserId" DataSourceID="SqlDataSource1" 
               EmptyDataText="There are no data records to display." 
               DataKeyNames="UserId">
     <Columns>
         <asp:BoundField DataField="UserId" HeaderText="UserId" SortExpression="UserId" />
         <asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
         <asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
     </Columns>
</asp:GridView>

There are no data records to display.

However, when I execute the code in query builder, it works.

So I need to get the UserId manually from the database.

Then go to the query builder then execute then paste the userid in to the value of UserID.

Then it displays the correct data based on the UserId:

I also tried changing it to this:

  <SelectParameters>
        <asp:Parameter Name="UserId" Type="Empty" DbType="Guid"></asp:Parameter>
  </SelectParameters>

Answer 1

You should set a break point and see if currentUserId is populated. I believe that it is. If so, then retrieving the UserId is not the problem, but instead the problem is setting the parameter value or selecting the data.

I think you need to change the type of your parameter from string to Guid

<SelectParameters>
    <asp:Parameter Name="UserId" Type="Guid"></asp:Parameter>
</SelectParameters>