ControlTemplate的ResourceDictionary中的WPF事件
ControlTemplate的ResourceDictionary中的WPF事件
提问于 2011-08-13 04:05:40
我目前正在尝试实现一个Metro样式的窗口。
因此，我在ResourceDictionary中创建了以下样式：
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<!-- Brushes -->
<SolidColorBrush x:Key="BackgroundColor" Color="#FFFFFFFF" />
<!-- Buttons -->
<Style x:Key="MetroControlBoxButton" TargetType="Button">
<Setter Property="Background" Value="{StaticResource BackgroundColor}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<ContentPresenter />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<!-- Windows -->
<Style x:Key="MetroWindow" TargetType="Window">
<Setter Property="UseLayoutRounding" Value="True" />
<Setter Property="WindowStyle" Value="None" />
<Setter Property="ResizeMode" Value="NoResize" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Window">
<Grid Background="{StaticResource BackgroundColor}">
<Grid.RowDefinitions>
<RowDefinition Height="6" />
<RowDefinition Height="24" />
<RowDefinition Height="*" />
<RowDefinition Height="24" />
<RowDefinition Height="6" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="6" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="6" />
</Grid.ColumnDefinitions>
<Rectangle Name="topLeftBorderRectangle" Fill="Red" Grid.Row="0" Grid.Column="0" />
<Rectangle Name="topCenterBorderRectangle" Fill="Orange" Grid.Row="0" Grid.Column="1" />
<Rectangle Name="topRightBorderRectangle" Fill="Red" Grid.Row="0" Grid.Column="2" />
<Rectangle Name="middleLeftBorderRectangle" Fill="Orange" Grid.Row="1" Grid.RowSpan="3" Grid.Column="0" />
<Rectangle Name="middleRightBorderRectangle" Fill="Orange" Grid.Row="1" Grid.RowSpan="3" Grid.Column="2" />
<Rectangle Name="bottomLeftBorderRectangle" Fill="Red" Grid.Row="4" Grid.Column="0" />
<Rectangle Name="bottomCenterBorderRectangle" Fill="Orange" Grid.Row="4" Grid.Column="1" />
<Rectangle Name="bottomRightBorderRectangle" Fill="Red" Grid.Row="4" Grid.Column="2" />
<Rectangle Name="statusBarRectangle" Fill="Yellow" Grid.Row="3" Grid.Column="1" />
<Grid Grid.Row="1" Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="28" />
<ColumnDefinition Width="28" />
<ColumnDefinition Width="28" />
</Grid.ColumnDefinitions>
<Rectangle Name="dragRectangle" Fill="Yellow" Grid.Row="0" Grid.Column="1" />
<Button Name="minimizeButton" Content="_" Grid.Row="0" Grid.Column="2" Style="{StaticResource MetroControlBoxButton}" Command="{Binding Path=DataContext.MinimizeCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}" />
<Button Name="maximizeButton" Content="[]" Grid.Row="0" Grid.Column="3" Style="{StaticResource MetroControlBoxButton}" Command="{Binding Path=DataContext.MaximizeNormalizeCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}" />
<Button Name="closeButton" Content="X" Grid.Row="0" Grid.Column="4" Style="{StaticResource MetroControlBoxButton}" Command="{Binding Path=DataContext.CloseCommand, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Window}}}" />
</Grid>
<ContentPresenter Grid.Row="2" Grid.Column="1" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>我的问题是我不知道如何实现de drag特性。
我的dragRectangle没有命令属性，那么我如何使用MVVM在矩形的MouseLeftButtonDown上调用DragMove()呢？
谢谢
回答 1
Stack Overflow用户
回答已采纳
发布于 2011-08-13 04:34:47
ResourceDictionary可以像Windows等一样具有代码，因此您可以添加一个事件处理程序并从那里调用DragMove
设置代码后台需要几个步骤。
- 如果您的代码名为ResourceDictionary，则在Visual Studio中的名为
MetroStyleResourceDictionary.xaml的同一文件夹中添加一个新文件，代码隐藏文件应如下所示
公共分部类MetroStyleResourceDictionary { //... }
- 之后，您需要将
x:Class属性添加到Xaml文件中
现在，您可以向MouseLeftButtonDown的dragRectangle添加事件处理程序。您还需要掌握Window，以便绑定到Tag可能是个好主意
<Rectangle Name="dragRectangle"
MouseLeftButtonDown="dragRectangle_MouseLeftButtonDown"
Tag="{Binding RelativeSource={RelativeSource AncestorType={x:Type Window}}}"
.../>最后，您可以将事件处理程序添加到代码隐藏文件中，如下所示
public partial class MetroStyleResourceDictionary
{
void dragRectangle_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
Rectangle dragRectangle = sender as Rectangle;
Window window = dragRectangle.Tag as Window;
if (window != null)
{
window.DragMove();
}
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/7045718
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