我有一个带有 App.xaml、MainWindow.xaml 和 Person 类的简单应用程序。当我没有指定模板时,我的 ValidateOnDataErrors 工作得很好,当它出错时在我的文本框周围放置一个红色边框。但是,只要我在 MainWindow.xaml 的 Window 标记中插入“ Template="{StaticResource WindowTemplate}" ',该字段仍然有效,但红色边框消失了。
应用程序.xaml:
<Application x:Class="WpfPOC.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="MainWindow.xaml">
<Application.Resources>
<ControlTemplate TargetType="Window" x:Key="WindowTemplate">
<Grid Background="{TemplateBinding Background}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Control x:Name="FocusCatcher"></Control>
<TextBlock>Menu Section</TextBlock>
<ContentPresenter Grid.Row="1" />
<StatusBar Height="23" VerticalAlignment="Bottom" Grid.Row="2">
<TextBlock Text="Current Editing Mode" />
</StatusBar>
</Grid>
</ControlTemplate>
</Application.Resources>
</Application>
MainWindow.xaml :
<Window x:Class="WpfPOC.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:data="clr-namespace:WpfPOC"
Template="{StaticResource WindowTemplate}"
Title="MainWindow"
Height="350"
Width="525">
<Window.Resources>
<data:Person x:Key="myDataSource" Name="Joe"/>
</Window.Resources>
<Grid>
<TextBox Height="23" Width="120" Text="{Binding Source={StaticResource myDataSource}, Path=Name, ValidatesOnDataErrors=True}" />
</Grid>
</Window>
个人.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
namespace WpfPOC
{
public class Person : IDataErrorInfo
{
public string Name { get; set; }
#region IDataErrorInfo Members
public string Error
{
get { return string.Empty; }
}
public string this[string columnName]
{
get { return "Simulated error"; }
}
#endregion
}
}
预先感谢您的帮助。