[WPF] 圆角TextBox

使用Blend编辑TextBox的Template，将其中的ListBoxChrome修改为Border。

<Application.Resources>
    <LinearGradientBrush x:Key="TextBoxBorder" EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0">
      <GradientStop Color="#ABADB3" Offset="0.05"/>
      <GradientStop Color="#E2E3EA" Offset="0.07"/>
      <GradientStop Color="#E3E9EF" Offset="1"/>
    </LinearGradientBrush>
    <Style x:Key="CornetTextBoxStyle" BasedOn="{x:Null}" TargetType="{x:Type TextBox}">
      <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
      <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
      <Setter Property="BorderBrush" Value="{StaticResource TextBoxBorder}"/>
      <Setter Property="BorderThickness" Value="1"/>
      <Setter Property="Padding" Value="1"/>
      <Setter Property="AllowDrop" Value="true"/>
      <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
      <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
      <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
      <Setter Property="Template">
        <Setter.Value>
          <ControlTemplate TargetType="{x:Type TextBox}">
            <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true" CornerRadius="5">
              <ScrollViewer x:Name="PART_ContentHost" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
            </Border>
            <ControlTemplate.Triggers>
              <Trigger Property="IsEnabled" Value="false">
                <Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
              </Trigger>
            </ControlTemplate.Triggers>
          </ControlTemplate>
        </Setter.Value>
      </Setter>
      <Style.Triggers>
        <MultiTrigger>
          <MultiTrigger.Conditions>
            <Condition Property="IsInactiveSelectionHighlightEnabled" Value="true"/>
            <Condition Property="IsSelectionActive" Value="false"/>
          </MultiTrigger.Conditions>
          <Setter Property="SelectionBrush" Value="{DynamicResource {x:Static SystemColors.InactiveSelectionHighlightBrushKey}}"/>
        </MultiTrigger>
      </Style.Triggers>
    </Style>
  <!-- Resources scoped at the Application level should be defined here. -->
</Application.Resources>