WPF 样式资源不起作用 [英] WPF Style Resource not Working
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问题描述
所有，我想为我的应用程序中的所有 DataGrid/ResourceDataGrid 继承通用样式.为此，我创建了一个名为 ResourceControl.xaml 的资源文件，其中有
All, I want to inherit a generic style for all DataGrid/ResourceDataGrids in my application. To do this I have created a resource file called ResourceControl.xaml, in which I have
<UserControl x:Class="ResourceStudio.Views.ResourceControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:viewModels="clr-namespace:ResourceStudio.ViewModels"
xmlns:dataAccess="clr-namespace:ResourceStudio.DataAccess"
xmlns:controls="clr-namespace:ResourceStudio.Controls"
mc:Ignorable="d">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="MainWindowResources.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<DockPanel HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<TextBox DockPanel.Dock="Top"
Name="searchBox"
Margin="0,2"
VerticalContentAlignment="Center"
mahAppsControls:TextboxHelper.Watermark="Search Resources"
mahAppsControls:TextboxHelper.ClearTextButton="True">
</TextBox>
<Grid DockPanel.Dock="Top">
<controls:ResourceDataGrid x:Name="resourceDataGrid"
ItemsSource="{Binding Path=Resources}"
dataAccess:DataGridTextSearch.SearchValue="{Binding ElementName=searchBox, Path=Text, UpdateSourceTrigger=PropertyChanged}"
dataAccess:DataGridTextSearch.IsAnyTextMatch="False"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
AutoGenerateColumns="False"
GridLinesVisibility="None"
RowHeaderWidth="0"
CanUserAddRows="True"
CanUserDeleteRows="True">
<controls:ResourceDataGrid.Columns>
<DataGridTextColumn Header="KeyIndex" Binding="{Binding KeyIndex}" IsReadOnly="True"/>
<DataGridTextColumn Header="FileName" Binding="{Binding FileName}" IsReadOnly="True"/>
<DataGridTextColumn Header="ResourceName" Binding="{Binding ResourceName}" IsReadOnly="False"/>
<controls:CollectionTextColumn Collection="ResourceStringList" Visibility="Collapsed"/>
</controls:ResourceDataGrid.Columns>
<controls:ResourceDataGrid.Resources>
<dataAccess:SearchValueConverter x:Key="searchValueConverter"/>
<Style TargetType="{x:Type DataGridCell}">
<Setter Property="dataAccess:DataGridTextSearch.IsTextMatch">
<Setter.Value>
<MultiBinding Converter="{StaticResource searchValueConverter}">
<Binding RelativeSource="{RelativeSource Self}" Path="Content.Text" />
<Binding RelativeSource="{RelativeSource Self}" Path="(dataAccess:DataGridTextSearch.SearchValue)" />
<Binding ElementName="resourceDataGrid" />
</MultiBinding>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="dataAccess:DataGridTextSearch.IsTextMatch" Value="True">
<Setter Property="Background" Value="Orange" />
</Trigger>
</Style.Triggers>
</Style>
</controls:ResourceDataGrid.Resources>
</controls:ResourceDataGrid>
</Grid>
</DockPanel>
</UserControl>
在资源文件 MainWindowResources.xaml 中的哪个位置我有
Where in the resource file MainWindowResources.xaml I have
<!--DataGrid Style-->
<Style TargetType="{x:Type DataGrid}">
<Setter Property="Background" Value="White"/>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<!--<Setter Property="Background" Value="{DynamicResource AccentColor}"/>-->
<Setter Property="Background" Value="Red"/>
<Setter Property="Foreground" Value="White"/>
</Trigger>
</Style.Triggers>
</Style>
<!--ResourceDataGrid Style-->
<Style TargetType="{x:Type controls:ResourceDataGrid}">
<Setter Property="Background" Value="White"/>
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<!--<Setter Property="Background" Value="{DynamicResource AccentColor}"/>-->
<Setter Property="Background" Value="Red"/>
<Setter Property="Foreground" Value="White"/>
</Trigger>
</Style.Triggers>
</Style>
但是我的 ResourceDataGrid 没有继承 MainWindowResources.xaml 中定义的样式，为什么?
But my ResourceDataGrid is not inheriting the style that is defined in the MainWindowResources.xaml, why?
推荐答案
所以，Label 的例子.
UserControl 列表:
<UserControl x:Class="ResourceDictionaryHelp.ResourceControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:ResourceDictionaryHelp"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="MainWindowResources.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<Label Content="TestLabel" HorizontalAlignment="Left" />
<local:MyLabel Content="TestMyLabel" HorizontalAlignment="Right" />
</Grid>
</UserControl>
UserControl 背后的代码:
public partial class ResourceControl : UserControl
{
public ResourceControl()
{
InitializeComponent();
}
}
public class MyLabel : Label
{
public MyLabel()
{
base.OnApplyTemplate();
}
}
使用UserControl:
<Window x:Class="ResourceDictionaryHelp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:ResourceDictionaryHelp"
WindowStartupLocation="CenterScreen"
Title="MainWindow" Height="350" Width="525">
<Grid>
<local:ResourceControl Width="300" Height="300" />
</Grid>
</Window>
输出:
ResourceDictionary 列表:
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:ResourceDictionaryHelp">
<Style TargetType="{x:Type Label}">
<Setter Property="Background" Value="Green" />
<Setter Property="Width" Value="100" />
<Setter Property="Height" Value="100" />
</Style>
<Style TargetType="{x:Type local:MyLabel}">
<Setter Property="Background" Value="Pink" />
<Setter Property="Width" Value="100" />
<Setter Property="Height" Value="100" />
</Style>
</ResourceDictionary>
在这种情况下，继承Style可以如下:
In this case, inheritance Style can be made as follows:
<Style TargetType="{x:Type local:MyLabel}" BasedOn="{StaticResource {x:Type Label}}">
<Setter Property="Background" Value="Pink" />
</Style>
它将与以下相同:
<Style TargetType="{x:Type local:MyLabel}">
<Setter Property="Background" Value="Pink" />
<Setter Property="Width" Value="100" />
<Setter Property="Height" Value="100" />
</Style>
另外，也可以通过key继承:
Also, inheritance can be done by key:
<Style TargetType="{x:Type local:MyLabel}" BasedOn="{StaticResource MyStyle}">
这篇关于WPF 样式资源不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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