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[英]How to apply global transform rules in app.xaml in windows phone 8
[英]How to apply App.XAML style to current window
我正在尝试应用验证错误模板并在App.XAML中定义样式。
<Application x:Class="MY.UI.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:BP.NES.UI"
>
<Application.Resources>
<Style TargetType="{x:Type TextBox}">
<Setter Property="Validation.ErrorTemplate">
<Setter.Value>
<ControlTemplate>
<Grid>
<Border BorderBrush="#FFCB2E2E" BorderThickness="1" Background="#11FF0000" IsHitTestVisible="False" x:Name="errorBorder"/>
<AdornedElementPlaceholder x:Name="placeholder" />
<Popup AllowsTransparency="True" HorizontalAlignment="Right" HorizontalOffset="0" VerticalOffset="0" PopupAnimation="Fade" Placement="Left"
PlacementTarget="{Binding ElementName=errorBorder}" IsOpen="{Binding ElementName=placeholder, Path=AdornedElement.IsFocused, Mode=OneWay}">
<StackPanel Orientation="Horizontal">
<Polygon VerticalAlignment="Center" Points="0,4 4,0 4,8" Fill="#FFCB2E2E" Stretch="Fill" Stroke="#FFCB2E2E"
StrokeThickness="2" />
<Border Background="#FFCB2E2E" CornerRadius="4" Padding="4">
<TextBlock HorizontalAlignment="Center" Foreground="White" FontWeight="Bold" Margin="2,0,0,0"
Text="{Binding ElementName=placeholder, Path=AdornedElement.ToolTip, Mode=OneWay}" />
</Border>
</StackPanel>
</Popup>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="True">
<Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}" />
</Trigger>
</Style.Triggers>
</Style>
</Application.Resources>
</Application>
现在在我的主窗口中,我有以下代码:
<Window x:Class="MY.UI.View.MainWindow"
xmlns:local="clr-namespace:MY.UI.View"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
mc:Ignorable="d"
xmlns:vm="clr-namespace:MY.UI.ViewModel"
xmlns:rules="clr-namespace:MY.UI.Validations"
>
<Grid x:Name="MainGrid">
<TextBox Grid.Row="1"
x:Name="CellphoneNumberTextBox"
Grid.Column="1"
VerticalAlignment="Stretch"
Margin="10,0,0,10"
IsEnabled="{Binding ElementName=PereferenceRadio,Path=IsChecked}"
Text="{Binding CurrentEnrolmentDetail.CellNumber,NotifyOnValidationError=True,ValidatesOnNotifyDataErrors=True,UpdateSourceTrigger=PropertyChanged}">
</TextBox>
</Grid>
</Window>
如果我将样式移到Window.Resources,它就可以正常工作,但是当我在App.XAML中拥有它时,它将无法工作。 这是由于名称空间的差异造成的吗?
在App.Xaml中设置样式键,然后在文本框中使用该键。
例:
App.xaml中
<Style x:Key="HeaderStyle" TargetType="TextBlock">
<Setter Property="Foreground" Value="Gray" />
<Setter Property="FontSize" Value="24" />
</Style>
窗口:
<Window x:Class="WpfTutorialSamples.Styles.ExplicitStyleSample"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="ExplicitStyleSample" Height="150" Width="300">
<StackPanel Margin="10">
<TextBlock>Header 1</TextBlock>
<TextBlock Style="{StaticResource HeaderStyle}">Header 2</TextBlock>
<TextBlock>Header 3</TextBlock>
</StackPanel>
</Window>
或使用BasedOn功能覆盖如果您不希望创建样式键,请尝试此操作
App.xaml中
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
<!-- ... -->
</Style>
我已经在App.xaml的ResourceDictionary中声明了我的基本样式,如果我在这样的特定窗口中覆盖了它们,通常就可以了。
如果所有TextBox都将保持与资源文件中使用以下应用程序相似的思想。
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
<Setter Property="Background" Value="Blue"/>
</Style>
其他在App.xaml中创建密钥,并在需要的TextBox中使用,如下所示:
<Style x:Key="TextboxBackgroundColor" TargetType="TextBox">
<Setter Property="Background" Value="Cyan"/>
</Style>
<TextBox x:Name="txtText" Style="{StaticResource TextboxBackgroundColor}" />
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