/// <summary>
        /// 添加学校
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void AddSchool_Click(object sender, RoutedEventArgs e)
        {
            SchoolEditWindow addschool = new SchoolEditWindow();

            addschool.ShowDialog();
            DataBinding();
        }
 /// <summary>
 /// 修改学校
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void Button_Click_Edit(object sender, RoutedEventArgs e)
 {
     if (SchooldataGrid.SelectedIndex > -1)
     {
         SchoolInfoViewModel editschool = this.SchooldataGrid.Items[SchooldataGrid.SelectedIndex] as SchoolInfoViewModel;
         SchoolEditWindow    sew        = new SchoolEditWindow();
         sew.School = editschool;
         sew.IsEdit = true;
         sew.ShowDialog();
         DataBinding();
     }
 }