Question

I have a GridView which is not bound to any DataSource. In my page load event I am writing this code:

 protected void Page_Load(object sender, EventArgs e)
    {
        string getEntity = Request.QueryString["EntityID"];
        int getIntEntity = Int16.Parse(getEntity);

        OISLinq2SqlVs1DataContext dt = new OISLinq2SqlVs1DataContext();
        var tr = from r in dt.Users
                 join s in dt.Entities on r.Entity_ID equals s.ID
                 where s.ID == getIntEntity
                 select new
                 {
                     s.Name,
                     r.FirstName,
                     r.LastName,
                     s.Email,
                     //r.Email,
                     r.UserID,
                     r.Pwd,
                     s.Company,
                     s.Description,
                     s.Phone,
                     s.Fax,
                     s.WebSite

                 };

        GridView1.DataSource = tr;
        GridView1.DataBind();

    }

the markup:

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
     Height="348px" Width="656px">
</asp:GridView>

Now I can see the the value is coming from previous page, but my GridView is not populating anything. What I am doing wrong here? Please help! Thank you.

Answer 1

You should set AutoGenerateColumns property to true which is required to have the data source define what columns appear.

Or you have to manually specify the columns to show.