/// <summary>
/// 学员管理里面的提交查询按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnSelectBySIN_Click(object sender, RoutedEventArgs e)
{
//btnSelectBySIN某个单个id或姓式查询的button名字
smclassCmb.SelectedIndex = -1;
string str = mstxtIdorName.Text.Trim();
List <StudentsExt> liststu = sm.GetStudentsIdorName(str);
if (liststu.Count <= 0)
{
MessageBox.Show("根据条件没查询到", "提示！");
return;
}
students = liststu;
//点击先清空路径里面的内容
smDgStudentLsit.ItemsSource = null;
//在从新查找
smDgStudentLsit.ItemsSource = students;
}