目标 要使按钮背景onMouseEnter的默认行为是什么都不做,但仍然允许以编程方式更改应用程序逻辑中的按钮背景。
多个帖子地址覆盖默认的MouseOver行为:
ex:How do you disable MouseOver effects on a Button in WPF?
但是,在我的应用程序中,我需要不断更改背景颜色,并将MouseOver背景颜色设置为触发器会覆盖我的更改。
<Button Content="Start" Name="buttonStart" Style="{StaticResource mainButton}" PreviewMouseDown="buttonStart_MouseDown"/>
<Button Content="Stop" Name="buttonStop" Style="{StaticResource mainButton}" PreviewMouseDown="buttonStop_MouseDown"/>
App.xaml
<Style x:Key="mainButton" TargetType="{x:Type Button}">
<Setter Property="Width" Value="250"/>
<Setter Property="Height" Value="75"/>
<Setter Property="FontSize" Value="40"/>
<Setter Property="FontFamily" Value="Segoe UI Light"/>
<Setter Property="Foreground" Value="White"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border Name="Border" BorderThickness="1"
BorderBrush="#404040">
<ContentPresenter Margin="2"
HorizontalAlignment="Center"
VerticalAlignment="Center"
RecognizesAccessKey="True"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="Border"
Property="Background" Value="{x:Null}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
逻辑:
private void buttonStop_MouseDown(object sender, RoutedEventArgs e)
{
//Change background colors for buttonStop and buttonStart
}
private void buttonStart_MouseDown(object sender, RoutedEventArgs e)
{
//Change background colors for buttonStop and buttonStart
}
如何让按钮上的背景在onMouseEnter上不执行任何操作,但仍会更改代码中的背景?
答案 0 :(得分:1)
如果您无法删除触发器,则可以使用TextBlock作为按钮上的内容,然后在后面的代码中设置TextBlock OnClick的背景。您必须调整样式以允许TextBlock填充Button以使其显示正确。
这样的事情:
private void buttonStop_MouseDown(object sender, RoutedEventArgs e)
{
//Change background colors for buttonStop and buttonStart
TextBlock tb = new TextBlock();
tb.Background = Brushes.Blue;
((Button)sender).Content = tb;
}
...