我正在使用 IDataErrorInfo 来验证和指示文本框中的错误。我发现我必须为文本框和 adornerdecorator 标记一次。
我有一个错误模板:
<ControlTemplate x:Key="ErrorTemplate">
<StackPanel KeyboardNavigation.IsTabStop="False" >
<Border KeyboardNavigation.IsTabStop="False" BorderBrush="Red" BorderThickness="1" Padding="2" CornerRadius="2">
<AdornedElementPlaceholder KeyboardNavigation.IsTabStop="False" />
</Border>
</StackPanel>
</ControlTemplate>
一个文本框模板:
<Style x:Key="TextBoxInError" TargetType="{x:Type TextBox}">
<Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="Margin" Value="0,5,0,5"/>
<Setter Property="AllowDrop" Value="true"/>
<Setter Property="HorizontalContentAlignment" Value="left"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Grid KeyboardNavigation.IsTabStop="False" >
<Border KeyboardNavigation.IsTabStop="False" x:Name="Border" Background="{DynamicResource WindowBackgroundBrush}" BorderBrush="{DynamicResource SolidBorderBrush}" BorderThickness="1" Padding="2" CornerRadius="2">
<ScrollViewer IsTabStop="False" Margin="0" x:Name="PART_ContentHost" Style="{DynamicResource SimpleScrollViewer}" Background="{TemplateBinding Background}"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors), Converter={StaticResource errorConverter}}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="Gray"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
并声明一个这样的文本框:
<AdornerDecorator KeyboardNavigation.IsTabStop="False" >
<TextBox Margin="5,5,5,3" x:Name="txtName" IsEnabled="{Binding EditMode}" Validation.ErrorTemplate="{StaticResource ErrorTemplate}"
Text="{Binding ApplicationName, Mode=TwoWay, ValidatesOnExceptions=True, NotifyOnValidationError=True, ValidatesOnDataErrors=True}"
Height="25" MaxLength="50" MaxLines="1" Style="{StaticResource TextBoxInError}"/>
</AdornerDecorator>
如果装饰器是上面的一个文本框,那么我点击一次以离开文本框,一次离开“装饰”(似乎)然后盒子必须依次返回所有“装饰品”。当在装饰中切换时,焦点位于控件模板中定义的红色边框上。
有任何想法吗?
谢谢