/// <summary>
/// 班级变化
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void cmbClass_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbClass.Text != "")
{
string classId = ((DataTable)(cmbClass.DataSource)).Rows[cmbClass.SelectedIndex]["ClassId"].ToString();
DataSet ds_lesson = new DataSet();
if (db.GetLesson(0, 0, "*", "ClassId=" + classId, "", ref ds_lesson))
{
cmbLesson.DataSource = ds_lesson.Tables[0];
cmbLesson.DisplayMember = "LessonName";
}
else
{
cmbLesson.Text = "";
cmbLesson.DataSource = null;
}
}
}
