Dynamic Controls Added.- gridview in Run Time

I have Post the Code
Dynamic Controls Added.- gridview in Run Time
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if (e.Row.RowType == DataControlRowType.DataRow)
{
TextBox txt = new TextBox();
txt.ID = "TxtName";
txt.Text = "Name";
e.Row.Cells[1].Controls.Add(txt);

CheckBox rad = new CheckBox();
rad.ID = "rad1";
rad.Text = "Male";
e.Row.Cells[0].Controls.Add(rad);
}