我有大约3000个复选框实例，这些复选框的样式可以点击整行，复选框的状态会发生变化。
如何修改复选框，以便只能点击该框。我做了大量的搜索，但没有得出结论。
由于
答案 0 :(得分：0)
您必须做的就是检查点击了哪个元素。
在第一个解决方案中，您应该检查OriginalSource是否为BulletChrome，如果是，则应通过设置：e.Handled = false;来允许CheckBox更改状态。如果您不允许更改CheckBox状态，则应将e.Handled设置为true。
在第二个解决方案中，您应该检查OriginalSource是Border还是Path，并确保点击了相应的元素，我们应该检查名称。
您可以使用PreviewMouseLeftButtonDown事件来确定OriginalSource。
XAML：
<CheckBox Content="test" PreviewMouseLeftButtonDown="CheckBox_PreviewMouseLeftButtonDown"/>
代码隐藏：
private void CheckBox_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (e.OriginalSource is BulletChrome)
e.Handled = false;
else
e.Handled = true;
}
或者您可以创建自己的CheckBox ControlTemplate（msdn example）。
您应该检查PreviewMouseLeftButtonDown事件OriginalSource并允许或拒绝更改CheckBox状态。
PreviewMouseLeftButtonDown的示例：
<Window.Resources>
<Style x:Key="CheckBoxFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Border>
<Rectangle
Margin="15,0,0,0"
StrokeThickness="1"
Stroke="#60000000"
StrokeDashArray="1 2"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="NormalBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#CCC" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="LightBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalLightBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DarkBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#FFF" Offset="0.0"/>
<GradientStop Color="#AAA" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#BBB" Offset="0.0"/>
<GradientStop Color="#EEE" Offset="0.1"/>
<GradientStop Color="#EEE" Offset="0.9"/>
<GradientStop Color="#FFF" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledForegroundBrush" Color="#888" />
<SolidColorBrush x:Key="DisabledBackgroundBrush" Color="#EEE" />
<SolidColorBrush x:Key="WindowBackgroundBrush" Color="#FFF" />
<SolidColorBrush x:Key="SelectedBackgroundBrush" Color="#DDD" />
<LinearGradientBrush x:Key="NormalBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalNormalBorderBrush" StartPoint="0,0" EndPoint="1,0">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#CCC" Offset="0.0"/>
<GradientStop Color="#444" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="DefaultedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#777" Offset="0.0"/>
<GradientStop Color="#000" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<LinearGradientBrush x:Key="PressedBorderBrush" StartPoint="0,0" EndPoint="0,1">
<GradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#444" Offset="0.0"/>
<GradientStop Color="#888" Offset="1.0"/>
</GradientStopCollection>
</GradientBrush.GradientStops>
</LinearGradientBrush>
<SolidColorBrush x:Key="DisabledBorderBrush" Color="#AAA" />
<SolidColorBrush x:Key="SolidBorderBrush" Color="#888" />
<SolidColorBrush x:Key="LightBorderBrush" Color="#AAA" />
<SolidColorBrush x:Key="GlyphBrush" Color="#444" />
<SolidColorBrush x:Key="LightColorBrush" Color="#DDD" />
<Style x:Key="{x:Type CheckBox}" TargetType="CheckBox">
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="FocusVisualStyle" Value="{StaticResource CheckBoxFocusVisual}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="CheckBox">
<BulletDecorator Background="Transparent" PreviewMouseLeftButtonDown="BulletDecorator_PreviewMouseLeftButtonDown">
<BulletDecorator.Bullet>
<Border x:Name="chbStyleBorder"
Width="13"
Height="13"
CornerRadius="0"
Background="{StaticResource NormalBrush}"
BorderThickness="1"
BorderBrush="{StaticResource NormalBorderBrush}">
<Path
Width="7" Height="7"
x:Name="chbStyleCheckMark"
SnapsToDevicePixels="False"
Stroke="{StaticResource GlyphBrush}"
StrokeThickness="2"
Data="M 0 0 L 7 7 M 0 7 L 7 0" />
</Border>
</BulletDecorator.Bullet>
<ContentPresenter Margin="4,0,0,0"
VerticalAlignment="Top"
HorizontalAlignment="Left"
RecognizesAccessKey="True" />
</BulletDecorator>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="false">
<Setter TargetName="chbStyleCheckMark" Property="Visibility" Value="Collapsed"/>
</Trigger>
<Trigger Property="IsChecked" Value="{x:Null}">
<Setter TargetName="chbStyleCheckMark" Property="Data" Value="M 0 7 L 7 0" />
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="chbStyleBorder" Property="Background" Value="{StaticResource DarkBrush}" />
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter TargetName="chbStyleBorder" Property="Background" Value="{StaticResource PressedBrush}" />
<Setter TargetName="chbStyleBorder" Property="BorderBrush" Value="{StaticResource PressedBorderBrush}" />
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="chbStyleBorder" Property="Background" Value="{StaticResource DisabledBackgroundBrush}" />
<Setter TargetName="chbStyleBorder" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
<Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
代码隐藏：
private void BulletDecorator_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if ((e.OriginalSource is Border && ((Border)e.OriginalSource).Name == "chbStyleBorder") || (e.OriginalSource is Path && ((Path)e.OriginalSource).Name == "chbStyleCheckMark"))
e.Handled = false;
else
e.Handled = true;
}