Exemplo n.º 1
0
 /// <summary>
 /// 自定义设置抛出验证不通过的信息
 /// </summary>
 /// <param name="frameworkElement">控件自身</param>
 /// <param name="message">验证不通过的信息</param>
 /// <param name="viewmodel">当前控件所属的ViewModel</param>
 /// <param name="container">当前控件所属的容器:Grid,StackPanel</param>
 /// <param name="needClearErrorWhenLostFocus">当再一次失去焦点时是否需要清除掉验证错误信息</param>
 public static void Validation(this FrameworkElement frameworkElement, string message, ModelBase viewmodel,
                               FrameworkElement container, bool needClearErrorWhenLostFocus)
 {
     frameworkElement.SetValidation(message);
     frameworkElement.RaiseValidationError();
     if (needClearErrorWhenLostFocus)
     {
         TagObject tag = new TagObject();
         tag.ViewModel               = viewmodel;
         tag.Container               = container;
         frameworkElement.Tag        = tag;
         frameworkElement.LostFocus += new RoutedEventHandler(frameworkElement_LostFocus);
     }
 }
Exemplo n.º 2
0
        static void frameworkElement_LostFocus(object sender, RoutedEventArgs e)
        {
            TagObject        tag = null;
            FrameworkElement frameworkElement = sender as FrameworkElement;

            if (frameworkElement.Tag != null)
            {
                tag = frameworkElement.Tag as TagObject;
            }
            if (tag == null)
            {
                return;
            }

            ValidationManager.Validate(tag.Container);
            if (!tag.ViewModel.HasValidationErrors)
            {
                frameworkElement.ClearValidationError();
            }
        }