[英]How to keep image on Button to show on mouse-over? WPF
我有一个Button
,我正在通过Window.Resources
添加图像。
Window.Resources
XAML
<Window.Resources>
<ImageBrush x:Key="MyResource" ImageSource="Pics\Button.png" />
</Window.Resources>
还有Button
的XAML,
<Button Name="Button1" Height="25" Grid.Column="0"
Grid.Row="0" Background="{StaticResource MyResource}" Click="Button1_OnClick" > stuff
</Button>
我遇到的问题是,将鼠标悬停在按钮上时图像会消失。 我尝试了很多事情,但是我无法停止这种行为。 我仍然希望该按钮能够像鼠标悬停时的普通按钮一样工作,并进行颜色更改以表明您在它上面,但是我不知道该如何处理?
编辑:我与ImageBrush
一起使用的原因是,我可以使图像符合按钮。
编辑2:我需要像普通鼠标一样更改图像的颜色。
尝试这个 :
<Button Name="Button1" Height="25" Grid.Column="0"
Grid.Row="0" Click="Button1_OnClick">
<Border Background="{StaticResource MyResource}">
<TextBlock Text="stuff"/>
</Border>
</Button>
您还可以通过Button的ControlTemplate
基于MouseOver
设置Background
。 这使事情变得更加干净,因为它全部在xaml中完成。
<Window.Resources>
<ImageBrush x:Key="MyResource" ImageSource="Pics\Button.png" />
<ImageBrush x:Key="MyResource2" ImageSource="Pics\Button2.png" />
<Style x:Key="MyButtonStyle" TargetType="Button">
<Setter Property="OverridesDefaultStyle" Value="True"/>
<Setter Property="Background" Value="{StaticResource MyResource}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Name="border"
BorderThickness="0"
Background="Transparent">
<ContentPresenter HorizontalAlignment="Center"
VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource MyResource}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="False">
<Setter Property="Background" Value="{StaticResource MyResource2}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Button Name="Button1"
Style="{StaticResource MyButtonStyle}"
Height="25"
Grid.Column="0"
Grid.Row="0"
Click="Button1_OnClick">stuff</Button>
好,我知道了
我发现此方法很有效,因为它还可以减少不透明性,从而表明您已超出了按钮范围,并且这种方法仅需要XAML,因此它更加干净。
<Style x:Key="OpacityButton" TargetType="Button">
<Setter Property="OverridesDefaultStyle" Value="True" />
<Setter Property="Cursor" Value="Hand" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Name="border" BorderThickness="1"
Padding="2,2,2,2" BorderBrush="#FFEE82EE"
Background="{TemplateBinding Background}"
CornerRadius="5">
<ContentPresenter HorizontalAlignment="Center"
VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Opacity" Value="0.5" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
这种下一种方式在XAML后面使用代码,而不是像在XAML上那样干净,但是我猜可能有些时候您可能想在后面使用代码,因此我也将展示这种方式。
<Style x:Key="TransparentStyle" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Background="Transparent">
<ContentPresenter />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
然后在Button中,我添加了MouseEnter
和MouseLeave
事件以更改图像源,
<Button Name="Button1" Style="{StaticResource TransparentStyle}" Grid.Column="0" Grid.Row="0" Height="50" Width="70" Click="Button1_OnClick" MouseEnter="Button1_OnMouseEnter" MouseLeave="Button1_OnMouseLeave">
<StackPanel Orientation="Horizontal">
<Image x:Name="image4" Stretch="UniformToFill" />
</StackPanel>
</Button>
然后在后面的代码中
private void Button1_OnMouseEnter(object sender, MouseEventArgs e)
{
string imageSource = @"c:\users\user\documents\visual studio 2015\Projects\TestAppForXAML\TestAppForXAML\Pics\1211794133.png";
image4.Source = new ImageSourceConverter().ConvertFromString(imageSource) as ImageSource;
}
private void Button1_OnMouseLeave(object sender, MouseEventArgs e)
{
string imageSource = @"c:\users\user\documents\visual studio 2015\Projects\TestAppForXAML\TestAppForXAML\Pics\1313321102.jpg";
image4.Source = new ImageSourceConverter().ConvertFromString(imageSource) as ImageSource;
}
当鼠标进入或离开时,这会在两个图像之间切换,使您获得普通鼠标移过的效果。
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