为sharepoint 2013 增加切换账户登陆菜单

修改sharepoint 服务器上下面路径中的Welcome.ascx文件：

C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\CONTROLTEMPLATES

增加一段代码如下：

<SharePoint:MenuItemTemplate runat="server" ID="ID_LoginAsDifferentUser"

                 Text="<%$Resources:wss,personalactions_loginasdifferentuser%>"

                 Description="<%$Resources:wss,personalactions_loginasdifferentuserdescription%>"

                 MenuGroupId="100"

                 Sequence="100"

                 UseShortId="true"

                 />

这段代码添加在下面标记之前：

</SharePoint:FeatureMenuTemplate>
                  </CustomTemplate>