WPF，请问BorderThickness属性

[fgfgf5]

在标准的ScrollBar模板中，看到一段关于RepeatButton的样式，实在看不懂，帮忙解释一下：

<RepeatButton...>
<RepeatButton.Style>
...
...
<Setter Property="Border.BorderThickness">
<Setter.Value>
<Thickness>1,1,1,1</Thickness>
</Setter.Value>
</Setter>
...
...
</RepeatButton….>

代码中，红色部分设置了BorderThickness属性，可是为什么是写的：Border.BorderThickness呢？
难道此地方设置的不是RepeatButton的BorderThickness属性吗？

[全栈极简]

<RepeatButton BorderThickness="3"> <Setter Property="Border.BorderThickness"> <Setter.Value> <Thickness>1,1,1,1</Thickness> </Setter.Value> </Setter> </RepeatButton> 这里的Border.BorderThickness跟RepeatButton BorderThickness的BorderThickness，不是一回事。BorderThickness是BorderThickness的属性，边框厚度。而Border.BorderThickness是引用的资源字典里的属性。 比如： <Style x:Key="CircleButtonStyle" TargetType="{x:Type Button}"> <Setter Property="Border.BorderThickness" Value="1,1,1,1" /> </Style>

[fgfgf5]

引用 1 楼 guwei4037 的回复:

<RepeatButton BorderThickness="3"> <Setter Property="Border.BorderThickness"> <Setter.Value> <Thickness>1,1,1,1</Thickness> </Setter.Value> </Setter> </RepeatButton> 这里的Border.BorderThickness跟RepeatButton BorderThickness的BorderThickness，不是一回事。BorderThickness是BorderThickness的属性，边框厚度。而Border.BorderThickness是引用的资源字典里的属性。 比如： <Style x:Key="CircleButtonStyle" TargetType="{x:Type Button}"> <Setter Property="Border.BorderThickness" Value="1,1,1,1" /> </Style>

Border.BorderThickness是引用的资源字典里的属性？ Button的样式，设置Border.BorderThickness属性？还是看不懂诶 ，Border.BorderThickness指的是什么？

[flashposition]

BorderThickness是线型,实线,虚线,点划线等等

[fgfgf5]

引用 3 楼 flashposition 的回复:

BorderThickness是线型,实线,虚线,点划线等等

那1楼的代码： <RepeatButton BorderThickness="3"> <Setter Property="Border.BorderThickness"> <Setter.Value> <Thickness>1,1,1,1</Thickness> </Setter.Value> </Setter> </RepeatButton> RepeatButton的边框宽度设置为了3，那Border.BorderThickness设置为1,1,1,1，这是设置的什么东西？不会又是边框宽度吧

[fgfgf5]

引用 1 楼 guwei4037 的回复:

<RepeatButton BorderThickness="3"> <Setter Property="Border.BorderThickness"> <Setter.Value> <Thickness>1,1,1,1</Thickness> </Setter.Value> </Setter> </RepeatButton> 这里的Border.BorderThickness跟RepeatButton BorderThickness的BorderThickness，不是一回事。BorderThickness是BorderThickness的属性，边框厚度。而Border.BorderThickness是引用的资源字典里的属性。 比如： <Style x:Key="CircleButtonStyle" TargetType="{x:Type Button}"> <Setter Property="Border.BorderThickness" Value="1,1,1,1" /> </Style>

RepeatButton的边框宽度设置为了3，那Border.BorderThickness设置为1,1,1,1，这是设置的什么东西？不会又是边框宽度吧

[fgfgf5]

标准的RepeatButton模板如下： <RepeatButton Command="ScrollBar.LineUpCommand" Name="PART_LineUpButton" IsEnabled="{TemplateBinding UIElement.IsMouseOver}"> <RepeatButton.Style> <Style TargetType="RepeatButton"> <Style.Resources> <ResourceDictionary /> </Style.Resources> <Setter Property="FrameworkElement.FocusVisualStyle"> <Setter.Value> <Style TargetType="IFrameworkInputElement"> <Style.Resources> <ResourceDictionary /> </Style.Resources> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate> <Rectangle Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2" Margin="2,2,2,2" SnapsToDevicePixels="True" /> </ControlTemplate> </Setter.Value> </Setter> </Style> </Setter.Value> </Setter> <Setter Property="Border.BorderThickness"> <Setter.Value> <Thickness>1,1,1,1</Thickness> </Setter.Value> </Setter> <Setter Property="Control.HorizontalContentAlignment"> <Setter.Value> <x:Static Member="HorizontalAlignment.Center" /> </Setter.Value> </Setter> <Setter Property="Control.VerticalContentAlignment"> <Setter.Value> <x:Static Member="VerticalAlignment.Center" /> </Setter.Value> </Setter> <Setter Property="Control.Padding"> <Setter.Value> <Thickness>1,1,1,1</Thickness> </Setter.Value> </Setter> <Setter Property="UIElement.Focusable"> <Setter.Value> <s:Boolean>False</s:Boolean> </Setter.Value> </Setter> <Setter Property="KeyboardNavigation.IsTabStop"> <Setter.Value> <s:Boolean>False</s:Boolean> </Setter.Value> </Setter> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate TargetType="RepeatButton"> <Border BorderThickness="1,1,1,1" BorderBrush="#FFF0F0F0" Background="#FFF0F0F0" Name="border" SnapsToDevicePixels="True"> <ContentPresenter Content="{TemplateBinding ContentControl.Content}" ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}" ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}" Name="contentPresenter" Margin="{TemplateBinding Control.Padding}" HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" Focusable="False" /> </Border> <ControlTemplate.Triggers> <Trigger Property="UIElement.IsMouseOver"> <Setter Property="Panel.Background" TargetName="border"> <Setter.Value> <SolidColorBrush>#FFDADADA</SolidColorBrush> </Setter.Value> </Setter> <Setter Property="Border.BorderBrush" TargetName="border"> <Setter.Value> <SolidColorBrush>#FFDADADA</SolidColorBrush> </Setter.Value> </Setter> <Trigger.Value> <s:Boolean>True</s:Boolean> </Trigger.Value> </Trigger> <Trigger Property="ButtonBase.IsPressed"> <Setter Property="Panel.Background" TargetName="border"> <Setter.Value> <SolidColorBrush>#FF606060</SolidColorBrush> </Setter.Value> </Setter> <Setter Property="Border.BorderBrush" TargetName="border"> <Setter.Value> <SolidColorBrush>#FF606060</SolidColorBrush> </Setter.Value> </Setter> <Trigger.Value> <s:Boolean>True</s:Boolean> </Trigger.Value> </Trigger> <Trigger Property="UIElement.IsEnabled"> <Setter Property="UIElement.Opacity" TargetName="contentPresenter"> <Setter.Value> <s:Double>0.56</s:Double> </Setter.Value> </Setter> <Setter Property="Panel.Background" TargetName="border"> <Setter.Value> <SolidColorBrush>#FFF0F0F0</SolidColorBrush> </Setter.Value> </Setter> <Setter Property="Border.BorderBrush" TargetName="border"> <Setter.Value> <SolidColorBrush>#FFF0F0F0</SolidColorBrush> </Setter.Value> </Setter> <Trigger.Value> <s:Boolean>False</s:Boolean> </Trigger.Value> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> </RepeatButton.Style> <Path Data="M0,4C0,4 0,6 0,6 0,6 3.5,2.5 3.5,2.5 3.5,2.5 7,6 7,6 7,6 7,4 7,4 7,4 3.5,0.5 3.5,0.5 3.5,0.5 0,4 0,4z" Stretch="Uniform" Fill="#FF606060" Name="ArrowTop" Margin="3,4,3,3" /> </RepeatButton> [/code]

[fgfgf5]

有人知道吗？？？

[fgfgf5]

RepeatButton的边框宽度设置为了3，那Border.BorderThickness设置为1,1,1,1，这是设置的什么东西？不会又是边框宽度吧

[全栈极简]

Border.BorderThickness设置为1,1,1,1，比如如果是绑定到button的样式的话，就是button的左、上、右、下4个边框的宽度。

[fgfgf5]

引用 8 楼 guwei4037 的回复:

Border.BorderThickness设置为1,1,1,1，比如如果是绑定到button的样式的话，就是button的左、上、右、下4个边框的宽度。

4个边框的宽度不是用BorderThickness表示的吗？为什么是Border.BorderThickness

[申江渔夫]

你代码没贴全，RepeatButton中应该用到Border的。

[铜板]

这是因为是为RepeatButton.Border.BorderThickness设置样式！