private void FillGrid()
        {
            long courseNum = 0;

            if (comboCourse.SelectedIndex != 0)
            {
                courseNum = _listSchoolCourses[comboCourse.SelectedIndex - 1].SchoolCourseNum;
            }
            DataTable table = EvaluationDefs.GetAllByCourse(courseNum);

            gridMain.BeginUpdate();
            gridMain.Columns.Clear();
            ODGridColumn col = new ODGridColumn(Lan.g("TableEvaluationSetup", "Course"), 100);

            gridMain.Columns.Add(col);
            col = new ODGridColumn(Lan.g("TableEvaluationSetup", "Evaluation Title"), 180);
            gridMain.Columns.Add(col);
            gridMain.Rows.Clear();
            ODGridRow row;

            for (int i = 0; i < table.Rows.Count; i++)
            {
                row = new ODGridRow();
                row.Cells.Add(table.Rows[i]["CourseID"].ToString());
                row.Cells.Add(table.Rows[i]["EvalTitle"].ToString());
                row.Tag = table.Rows[i]["EvaluationDefNum"].ToString();
                gridMain.Rows.Add(row);
            }
            gridMain.EndUpdate();
        }