随手记代码

Unix时间戳：

public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

 WPF中忽略中文输入。这在某些控件按键捕获或某个区域只输入英文时，很有效。

InputMethod.IsInputMethodEnabled="False"

 WPF中Border控件的虚线边框实现：（原文）

<Border BorderThickness="1,0,1,1">
   <Border.BorderBrush>
      <DrawingBrush Viewport="0,0,8,8" ViewportUnits="Absolute" TileMode="Tile">
         <DrawingBrush.Drawing>
            <DrawingGroup>
               <GeometryDrawing Brush="Black">
                  <GeometryDrawing.Geometry>
                     <GeometryGroup>
                        <RectangleGeometry Rect="0,0,50,50" />
                        <RectangleGeometry Rect="50,50,50,50" />
                     </GeometryGroup>
                  </GeometryDrawing.Geometry>
               </GeometryDrawing>
            </DrawingGroup>
         </DrawingBrush.Drawing>
      </DrawingBrush>
   </Border.BorderBrush>

   <TextBlock Text="Content Goes Here!" Margin="5"/>
</Border>