protected void GvCourses_Sorting(object sender, GridViewSortEventArgs e)
{
DataTable table = GetEnrolledStudents();
table.DefaultView.Sort = e.SortExpression;
GvCourses.DataSource = table;
GvCourses.DataBind();
}
private void LoadEnrolledStudents()
{
GvCourses.DataSource = GetEnrolledStudents();
GvCourses.DataBind();
}