12

我在 WPF 中使用了样式资源，因此在我的 App.xaml 中我可以定义是使用客户还是管理员布局。通过以类似 HTML/CSS 的方式从主 XAML 中获取所有样式，这可以很好地工作。

现在如何使这个动态化，以便我可以单击应用程序中的按钮并在运行时在客户和管理员之间切换布局？

附录：

感谢 Meeh 的链接，所以我做了这个，当我调试时，它会遍历所有行但仍然不会改变布局，我还需要做什么才能在运行时改变布局？

private void Button_Switch_Layout_Click(object sender, RoutedEventArgs e)
{
    string layoutIdCode = "administrator";

    switch (layoutIdCode)
    {
        case "administrator":
            langDictPath = "Resources/AdministratorLayout.xaml";
            break;

        case "customer":
            langDictPath = "Resources/CustomerLayout.xaml";
            break;
    }

    Uri langDictUri = new Uri(langDictPath, UriKind.Relative);
    ResourceDictionary langDict = Application.LoadComponent(langDictUri) as ResourceDictionary;
    Application.Current.Resources.MergedDictionaries.Clear();
    Application.Current.Resources.MergedDictionaries.Add(langDict);
}

 

原始代码：

应用程序.xaml：

<Application x:Class="TestMvvm8837.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    StartupUri="Window1.xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Resources/CustomerLayout.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

Window1.xaml：

<Window x:Class="TestMvvm8837.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Style="{StaticResource MainWindow}"
    Title="Resource Test" >
    <DockPanel>

        <Grid Style="{StaticResource Form}">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="Auto" />
            </Grid.ColumnDefinitions>

            <TextBlock Style="{StaticResource FormLabel}" Grid.Column="0" Grid.Row="0" Text="First Name" />
            <TextBlock Style="{StaticResource FormLabel}" Grid.Column="0" Grid.Row="1" Text="Last Name" />
            <TextBlock Style="{StaticResource FormLabel}" Grid.Column="0" Grid.Row="2" Text="E-Mail" />

            <TextBox Grid.Column="1" Grid.Row="0"/>
            <TextBox Grid.Column="1" Grid.Row="1"/>
            <TextBox Grid.Column="1" Grid.Row="2"/>

            <Button Style="{StaticResource FormSaveButton}" Grid.Column="1" Grid.Row="3" Content="Save"/>

        </Grid>

    </DockPanel>
</Window>

管理员布局.xaml：

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Style x:Key="MainWindow" TargetType="{x:Type Window}">
        <Setter Property="Width" Value="800"/>
        <Setter Property="Height" Value="600"/>
    </Style>

    <Style x:Key="Form" TargetType="{x:Type Grid}">
        <Setter Property="Margin" Value="20"/>
    </Style>

    <Style x:Key="FormLabel" TargetType="{x:Type TextBlock}">
        <Setter Property="Margin" Value="10"/>
        <Setter Property="FontFamily" Value="Verdana"/>
        <Setter Property="FontSize" Value="14"/>
    </Style>

    <Style TargetType="{x:Type TextBox}">
        <Setter Property="Margin" Value="10"/>
        <Setter Property="Width" Value="200"/>
        <Setter Property="HorizontalAlignment" Value="Left"/>
        <Setter Property="VerticalAlignment" Value="Top"/>
    </Style>

    <Style x:Key="FormSaveButton" TargetType="{x:Type Button}">
        <Setter Property="Margin" Value="10"/>
        <Setter Property="FontFamily" Value="Verdana"/>
        <Setter Property="FontSize" Value="14"/>
        <Setter Property="Width" Value="100"/>
        <Setter Property="HorizontalAlignment" Value="Left"/>
        <Setter Property="VerticalAlignment" Value="Top"/>
        <Setter Property="Cursor" Value="Hand"/>
    </Style>

</ResourceDictionary>

客户布局.xaml：

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Style x:Key="MainWindow" TargetType="{x:Type Window}">
        <Setter Property="Width" Value="600"/>
        <Setter Property="Height" Value="480"/>
        <Setter Property="Background">
            <Setter.Value>
                <LinearGradientBrush EndPoint="1.156,1.133" StartPoint="-0.033,0.019">
                    <GradientStop Color="#FFFFFFFF" Offset="0"/>
                    <GradientStop Color="#FF4FADD3" Offset="1"/>
                </LinearGradientBrush>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="Form" TargetType="{x:Type Grid}">
        <Setter Property="Margin" Value="5"/>
    </Style>

    <Style x:Key="FormLabel" TargetType="{x:Type TextBlock}">
        <Setter Property="Margin" Value="10"/>
        <Setter Property="FontFamily" Value="Verdana"/>
        <Setter Property="FontSize" Value="10"/>
    </Style>

    <Style TargetType="{x:Type TextBox}">
        <Setter Property="Margin" Value="10"/>
        <Setter Property="Width" Value="200"/>
        <Setter Property="HorizontalAlignment" Value="Left"/>
        <Setter Property="VerticalAlignment" Value="Top"/>
    </Style>

    <Style x:Key="FormSaveButton" TargetType="{x:Type Button}">
        <Setter Property="Margin" Value="10"/>
        <Setter Property="FontFamily" Value="Verdana"/>
        <Setter Property="FontSize" Value="10"/>
        <Setter Property="Width" Value="100"/>
        <Setter Property="HorizontalAlignment" Value="Left"/>
        <Setter Property="VerticalAlignment" Value="Top"/>
        <Setter Property="Cursor" Value="Hand"/>
    </Style>

</ResourceDictionary>
4

3 回答 3

14

您需要DynamicResource在 Window1.xaml 内部使用，而不是StaticResource. StaticResource只评估一次，而DynamicResource实际监听变化。

于 2009-05-26T14:26:56.680 回答
0

你应该：

  • 使用已在其中定义新样式的 XamlReader 加载资源字典
  • 从加载的资源中获取对新样式的引用（ newStyle = (Style)resource["styleName])
  • 在控件上设置新样式：control.Style = newStyle

高温高压

再见

于 2009-04-09T10:25:26.340 回答
0

您可以使用 ContentControl - 在这里它根据 ViewType 变量更改 xaml。

<ContentControl Style="{StaticResource ScriptsViewTemplate}" VerticalAlignment="Stretch" />   


<Style x:Key="ScriptsViewTemplate" TargetType="ContentControl">
<Style.Triggers>
  <DataTrigger Binding="{Binding Path = ViewType,Mode=TwoWay}" Value="True">
    <Setter Property="Template" Value="{StaticResource ScriptsTreeViewTemplate}"/>
  </DataTrigger>
  <DataTrigger Binding="{Binding Path = ViewType,Mode=TwoWay}" Value="False">
    <Setter Property="Template" Value="{StaticResource ScriptsListViewTemplate}"/>
  </DataTrigger>
</Style.Triggers>
</Style>
于 2017-08-18T13:20:08.527 回答