WPF 無邊框button
阿新 • • 發佈：2017-05-19
半透明 name 沒有 pan lowbit value olt and mouseover
項目中，有時會需要無邊框的Button，如果沒有特別的其他功能需要，我們可以更簡單的實現這一點：
<Button Content="myButton" Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}"/>
當然，上面的按鈕類似於ToolBar風格，移動到上面是藍色背景。
如果想進一步簡單修改，可以用以下方法，實現移動到按鈕上出現陰影，按下時內容縮小的功能：
<Button Command="{Binding RefreshSQLCmd}" ToolTip="{DynamicResource Refresh}" SnapsToDevicePixels="True" Background="Transparent" Height="30" Width="30" BorderBrush="Transparent"> <Button.Template> <ControlTemplate TargetType="{x:Type Button}"> <Grid> <Rectangle Height="30" Width="30"> <Rectangle.Fill> <ImageBrush ImageSource="Images/refresh.ico"></ImageBrush> </Rectangle.Fill> </Rectangle> <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Content="{TemplateBinding Content}"></ContentPresenter> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="true"> <Setter Property="Image.Effect"> <Setter.Value> <DropShadowEffect BlurRadius="20" ShadowDepth="2" Color="#FF446FCB" Opacity="0.8"/> </Setter.Value> </Setter> </Trigger> <Trigger Property="IsPressed" Value="True"> <Setter Property="RenderTransform"> <Setter.Value> <ScaleTransform ScaleX="0.95" ScaleY="0.95"/> </Setter.Value> </Setter> <Setter Property="RenderTransformOrigin" Value=".5,.5"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Button.Template> </Button>
使用圖片作為按鈕外觀時，如果需要IsEnable為false時變灰，可以通過自定義如下：
<Style x:Key="myButton1" TargetType="Button"> <Style.Resources> <Style TargetType="Image"> <Style.Triggers> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Opacity" Value="0.5" /> </Trigger> </Style.Triggers> </Style> </Style.Resources> </Style>
如果想更復雜的，如下面的圓形按鈕，界面上的Button只需要Style綁定就可以了：
<Style x:Key="ButtonStyle1" TargetType="Button"> <Setter Property="Foreground" Value="Black"/> <!--修改模板屬性--> <Setter Property="Template"> <Setter.Value> <!--控件模板--> <ControlTemplate TargetType="Button"> <!--背景色--> <Border x:Name="back" Opacity="0.8" CornerRadius="3"> <Border.BitmapEffect> <!--邊框為0的外發光效果--> <OuterGlowBitmapEffect Opacity="0.7" GlowSize="0" GlowColor="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Button.Background).(SolidColorBrush.Color)}" /> </Border.BitmapEffect> <Border.Background> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1.5"> <GradientBrush.GradientStops> <GradientStopCollection> <GradientStop Color="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Button.Background).(SolidColorBrush.Color)}" Offset="0"/> <GradientStop Color="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(Button.Background).(SolidColorBrush.Color)}" Offset="0.4"/> <GradientStop Color="#FFF" Offset="1"/> </GradientStopCollection> </GradientBrush.GradientStops> </LinearGradientBrush> </Border.Background> <!--前景色及邊框--> <Border x:Name="fore" BorderThickness="1" CornerRadius="3" BorderBrush="#5555"> <!--fore 實現按鈕的邊框和高亮反光效果，半透明的黑色1像素邊框，使邊框的色彩可以和背景色混合起來--> <!--背景同樣采用的漸變筆刷，起始值和終止值的位置幾乎貼在一起，從而形成比較鮮明的反光度對比。--> <Border.Background> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <GradientBrush.GradientStops> <GradientStopCollection> <GradientStop Color="#6FFF" Offset="0.5"/> <GradientStop Color="#1111" Offset="0.51"/> </GradientStopCollection> </GradientBrush.GradientStops> </LinearGradientBrush> </Border.Background> <!--按鈕內容--> <ContentPresenter x:Name="content" HorizontalAlignment="Center" VerticalAlignment="Center" Content="{TemplateBinding Content}"> <!--一個不太明顯的陰影濾鏡以增強顯示效果--> <ContentPresenter.BitmapEffect> <DropShadowBitmapEffect Color="#000" Direction="-90" ShadowDepth="2" Softness="0.1" Opacity="0.3" /> </ContentPresenter.BitmapEffect> </ContentPresenter> </Border> </Border> <!--觸發器--> <ControlTemplate.Triggers> <!--鼠標移入移出--> <Trigger Property="IsMouseOver" Value="True"> <Trigger.EnterActions> <BeginStoryboard> <Storyboard> <DoubleAnimation To="6" Duration="0:0:0.2" Storyboard.TargetName="back" Storyboard.TargetProperty="(Border.BitmapEffect).(OuterGlowBitmapEffect.GlowSize)" /> <ColorAnimation To="#AFFF" BeginTime="0:0:0.2" Duration="0:0:0.2" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[0].(GradientStop.Color)" /> <ColorAnimation To="#3FFF" BeginTime="0:0:0.2" Duration="0:0:0.2" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[1].(GradientStop.Color)" /> </Storyboard> </BeginStoryboard> </Trigger.EnterActions> <Trigger.ExitActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Duration="0:0:0.2" Storyboard.TargetName="back" Storyboard.TargetProperty="(Border.BitmapEffect).(OuterGlowBitmapEffect.GlowSize)" /> <ColorAnimation Duration="0:0:0.2" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[0].(GradientStop.Color)" /> <ColorAnimation Duration="0:0:0.2" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[1].(GradientStop.Color)" /> </Storyboard> </BeginStoryboard> </Trigger.ExitActions> </Trigger> <!--按鈕按下彈起--> <Trigger Property="IsPressed" Value="True"> <Trigger.EnterActions> <BeginStoryboard> <Storyboard> <DoubleAnimation To="3" Duration="0:0:0.1" Storyboard.TargetName="back" Storyboard.TargetProperty="(Border.BitmapEffect).(OuterGlowBitmapEffect.GlowSize)" /> <ColorAnimation To="#3AAA" Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[0].(GradientStop.Color)" /> <ColorAnimation To="#2111" Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[1].(GradientStop.Color)" /> </Storyboard> </BeginStoryboard> </Trigger.EnterActions> <Trigger.ExitActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Duration="0:0:0.1" Storyboard.TargetName="back" Storyboard.TargetProperty="(Border.BitmapEffect).(OuterGlowBitmapEffect.GlowSize)" /> <ColorAnimation Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[0].(GradientStop.Color)" /> <ColorAnimation Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[1].(GradientStop.Color)" /> </Storyboard> </BeginStoryboard> </Trigger.ExitActions> </Trigger> <!--按鈕失效--> <!--當按鈕失效時，要改變很多東西，首先將文字顏色設為灰色，然後依次創建了改變外發光效果大小、改變內容陰影效果不透明度、 改變內容陰影效果角度、改變內容陰影效果顏色、改變按鈕邊框顏色、改變上部反光區域顏色、改變下部反光區域顏色的動畫。 這裏將先前對內容應用的陰影效果徹底改變，使之產生凹陷的效果--> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Foreground" Value="#B444"/> <Trigger.EnterActions> <BeginStoryboard> <Storyboard> <DoubleAnimation To="0" Duration="0:0:0.3" Storyboard.TargetName="back" Storyboard.TargetProperty="(Border.BitmapEffect).(OuterGlowBitmapEffect.GlowSize)" /> <DoubleAnimation To="1" Duration="0:0:0.1" Storyboard.TargetName="content" Storyboard.TargetProperty="(ContentPresenter.BitmapEffect).(DropShadowBitmapEffect.Opacity)" /> <DoubleAnimation To="-135" Duration="0:0:0.1" Storyboard.TargetName="content" Storyboard.TargetProperty="(ContentPresenter.BitmapEffect).(DropShadowBitmapEffect.Direction)" /> <ColorAnimation To="#FFF" Duration="0:0:0.3" Storyboard.TargetName="content" Storyboard.TargetProperty="(ContentPresenter.BitmapEffect).(DropShadowBitmapEffect.Color)" /> <ColorAnimation To="#D555" Duration="0:0:0.3" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" /> <ColorAnimation To="#CEEE" Duration="0:0:0.3" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[0].(GradientStop.Color)" /> <ColorAnimation To="#CDDD" Duration="0:0:0.3" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[1].(GradientStop.Color)" /> </Storyboard> </BeginStoryboard> </Trigger.EnterActions> <Trigger.ExitActions> <BeginStoryboard> <Storyboard> <DoubleAnimation Duration="0:0:0.1" Storyboard.TargetName="back" Storyboard.TargetProperty="(Border.BitmapEffect).(OuterGlowBitmapEffect.GlowSize)" /> <DoubleAnimation Duration="0:0:0.1" Storyboard.TargetName="content" Storyboard.TargetProperty="(ContentPresenter.BitmapEffect).(DropShadowBitmapEffect.Opacity)" /> <DoubleAnimation Duration="0:0:0.1" Storyboard.TargetName="content" Storyboard.TargetProperty="(ContentPresenter.BitmapEffect).(DropShadowBitmapEffect.Direction)" /> <ColorAnimation Duration="0:0:0.1" Storyboard.TargetName="content" Storyboard.TargetProperty="(ContentPresenter.BitmapEffect).(DropShadowBitmapEffect.Color)" /> <ColorAnimation Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" /> <ColorAnimation Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[0].(GradientStop.Color)" /> <ColorAnimation Duration="0:0:0.1" Storyboard.TargetName="fore" Storyboard.TargetProperty="(Border.Background).(LinearGradientBrush.GradientStops)[1].(GradientStop.Color)" /> </Storyboard> </BeginStoryboard> </Trigger.ExitActions> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>
以上是整理了一下自己常用的方法和網絡上的一個實例，對自定義控件有一個參考。
WPF 無邊框button