fix：修复DataGrid控件报错导致渲染卡顿的问题： Cannot get 'CornerRadius' value (type 'CornerRadius') from '' (type 'DataGridCell'). BindingExpression:Path=(0); DataItem='DataGridCell' (Name=''); target element is 'Border' (Name=''); target property is 'CornerRadius' (type 'CornerRadius') InvalidOperationException:'System.InvalidOperationException: “8,0,8,0”不是属性“CornerRadius”的有效值

src/Shared/HandyControl_Shared/Themes/Styles/Base/DataGridBaseStyle.xaml

@@ -1,4 +1,4 @@
-<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:hc="clr-namespace:HandyControl.Controls"
                     xmlns:system="clr-namespace:System;assembly=mscorlib">
@@ -36,7 +36,7 @@
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
         <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
-        <Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultInputPadding}"/>
+        <Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="DataGridCell">

src/Shared/HandyControl_Shared/Themes/Theme.xaml

@@ -1,4 +1,4 @@
-<!--
+<!--
     This code was generated by a tool.
 
     Changes to this file may cause incorrect behavior and will be lost if
@@ -11943,7 +11943,7 @@
 		<Setter Property="VerticalContentAlignment" Value="Center" />
 		<Setter Property="HorizontalContentAlignment" Value="Stretch" />
 		<Setter Property="Padding" Value="{StaticResource DefaultControlPadding}" />
-		<Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultInputPadding}" />
+		<Setter Property="hc:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}" />
 		<Setter Property="Template">
 			<Setter.Value>
 				<ControlTemplate TargetType="DataGridCell">
@@ -14552,4 +14552,4 @@
 	</Style>
 	<Style BasedOn="{StaticResource RangeSliderBaseStyle}" TargetType="hc:RangeSlider" />
 	<Style BasedOn="{StaticResource SliderBaseStyle}" TargetType="Slider" />
-</ResourceDictionary>
+</ResourceDictionary>