Detailsview does not display

I have a master-detail view. In the gridview I have a开发者_StackOverflow中文版 button

<asp:LinkButton ID="btnViewDetails" runat="server" text="Edit" CommandName="Select" CommandArgument='<%# Eval("BoundFieldId") %>'></asp:LinkButton>

Now in the RowCommand, I did

 DetailsView1.ChangeMode(DetailsViewMode.Edit);
    if (e.CommandName.Equals("Select"))
        {
            var value = Convert.ToInt32(e.CommandArgument);
            using (var dataContext = new xxxDataContext(Config.xxxConnectionString))
            {
                var dataList = (from t in dataContext.tableName
                                where te.Id == Convert.ToInt32(value)
                                select t).ToList();
                DetailsView1.DataSource = dataList;
                DetailsView1.DataBind();

            }

But I can't see my details view and it doesn't bind I guess. Why is this?

I've just tested your approach and everything seems to be fine. I guess the things to check would be:

1) Check that there is actually data with that ID in the database

2) Ensure your GridView has the "onrowcommand" event wired-up in the source view - should look something like:

<asp:GridView ID="GridView1" runat="server" onrowcommand="GridView1_RowCommand">

Can you place a breakpoint inside the onrowcommand handler?