Question

What is wrong with this c# method?

private void getMydatatable()
{
    DataTable dt = new DataTable();
    DataColumn dc;
    dc = new DataColumn("Name");
    dt.Columns.Add(dc);
    dc = new DataColumn("Age");
    dt.Columns.Add(dc);

    dt.Rows.Add("ARUN", "23");
    dt.Rows.Add("BALA", "23");
     GridView1.AutoGenerateColumns = false;
    GridView1.DataSource = dt;
    GridView1.DataBind();
    Page.Controls.Add(GridView1);
}

This method gets called on page load but my gridview is invisible why?

<form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="DlUser" runat="server">
        </asp:DropDownList>

        <asp:CheckBoxList ID="ChkUser" runat="server">
        </asp:CheckBoxList>
        <asp:GridView ID="GridView1" runat="server">
        </asp:GridView>
    </div>
</form>

Answer 1

You need to add the GridView to the page or the gv instance you are creating will be garbage collected as soon as you leave this method:

Page.Controls.Add(gv);