SharePoint中低权限用户通过提升权限创建用户组

主要代码如下：

 1         /// <summary>
 2         /// 提升权限创建用户组
 3         /// </summary>
 4         /// <param name="groupname">用户组的名字</param>
 5         public void CreateGroup(string groupname)
 6         {
 7             SPSecurity.RunWithElevatedPrivileges(delegate()
 8             {
 9                 try
10                 {
11                     using (SPSite mySite = new SPSite(SPContext.Current.Site.ID))
12                     {
13                         using (SPWeb myWeb = mySite.OpenWeb())
14                         {
15                             myWeb.AllowUnsafeUpdates = true;
16                             myWeb.SiteGroups.Add(groupname, myWeb.CurrentUser, null, "");
17                             myWeb.AllowUnsafeUpdates = false;
18                         }
19                     }
20                 }
21                 catch (Exception ex)
22                 {
23                     //throw custom exception
24                 }
25             });
26         }