Hiding datagrid column at runtime in asp.net

Sometimes you want to hide the column at runtime in datagrid. Below is the code. You can do this on RowCreated event of datagrid.

protected void gvreport_RowCreated(object sender, GridViewRowEventArgs e)
    {
       

        if (username=="Admin")// Your Condition for hiding the column
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                e.Row.Cells[4].Visible = false;

            }
            if (e.Row.RowType == DataControlRowType.Header)
            {
                e.Row.Cells[4].Visible = false;
            }
        }
    }