<StackPanel x:Name="stackpanel_zonghe"  Margin="0,10,0,0" Background="Transparent" Orientation="Horizontal">

         <StackPanel.ContextMenu>

               <ContextMenu StaysOpen="True">

                      <MenuItem Name="addModule" Header="添加模块" >

                              <MenuItem.Icon>

                                     <Image Source="Resources\add.png" Width="20" Height="20"/>

                              </MenuItem.Icon>

                        </MenuItem>

                  </ContextMenu>

          </StackPanel.ContextMenu>

</StackPanel>

注意一定需要将背景设置为透明  否则弹出的右键菜单看不见 Background="Transparent"

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }