GridView - Removing Edit and Delete columns while exporting to Excel - asp.net

Question

Thank you for viewing my question and helping. I have a asp.net application built in C#. The application has a simple gridview. I have a button to export the gridview into excel, which works as well. However, my gridview has a edit link in column 1 and a delete button in column 2. Both if these columns export to excel as well. How do I stop these two columns from exporting? I have tried a few things:
GridView1.Columns.RemoveAt(0);
GridView1.Columns.RemoveAt(1);
and...
GridView1.Column(0).visible = false;
I did a data bind after each of these while trying, but it simply does not work. I'll post my code below, and maybe someone can help me out! Thanks!
public void ExportGridToExcel(GridView grdGridView, string fileName)
{
Response.Clear();
Response.AddHeader("content-disposition",
string.Format("attachment;filename={0}.xls", fileName));
Response.Charset = "";
Response.ContentType = "application/vnd.xls";
StringWriter stringWrite = new StringWriter();
HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
grdGridView.RenderControl(htmlWrite);
GridView1.Columns.RemoveAt(0);
Response.Write(stringWrite.ToString());
Response.End();
GridView1.AllowPaging = false;
}
The girdview has the edit feature set to true, and the delete button is a template field as below:
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Button ID="btnDelete" CommandName="Delete" runat="server" Text="Delete" CssClass="okbutton" OnClientClick="return confirm('Are you sure you want to delete this entry?');" />
</ItemTemplate>
</asp:TemplateField>

Answer 1

You need to hide the individual cells in the header and data rows, like this:
// Hides the first column in the grid (zero-based index)
GridView1.HeaderRow.Cells[0].Visible = false;
// Loop through the rows and hide the cell in the first column
for (int i = 0; i < GridView1.Rows.Count;i++ )
{
GridViewRow row = GridView1.Rows[i];
row.Cells[0].Visible = false;
}

Answer 2

GridView1.Columns[6].Visible = false;

Answer 3

For Columns:
GridName.Columns[index].Visible = false;
For rows:
Gridname.Rows[index].Visible = false;