sharepoint 2013 自定义列表eventhandle权限控制

记录一下如何在sharepoint server 2013自定义列表中，使用eventhandle控制自定义列表custom list的条目item权限。

///<summary>

///正在添加项.

///</summary>

public override void ItemAdding(SPItemEventProperties properties)

{

base.ItemAdding(properties);

SPSecurity.RunWithElevatedPrivileges(delegate()

{

if(properties.ListTitle =="工作日报")

{

string DepartmentName ="";

if(properties.AfterProperties["Department"] !=null)

{

DepartmentName =properties.AfterProperties["Department"].ToString();

}

if (DepartmentName =="IT部门")

{

properties.ErrorMessage="该部门暂时不能填写日报！";

properties.Cancel =true;

}

}

});

}

///<summary>

///已添加项.

///</summary>

public override void ItemAdded(SPItemEventProperties properties)

{

base.ItemAdded(properties);

SPSecurity.RunWithElevatedPrivileges(delegate()

{

if(properties.ListTitle =="工作日报")

{

SPSite site=newSPSite(properties.SiteId);

SPWeb web=site.OpenWeb();

web.AllowUnsafeUpdates = true;

SPList list =web.Lists[properties.ListId];

SPListItem item =list.GetItemById(properties.ListItemId);

//权限断开，并且移除掉其它权限

if(!item.HasUniqueRoleAssignments)

{

item.BreakRoleInheritance(false);

}

//添加用户权限

SPUser CurrentUser =web.EnsureUser(properties.UserLoginName);

SPRoleAssignment MyRoleAssignment =newSPRoleAssignment(CurrentUser);

MyRoleAssignment.RoleDefinitionBindings.Add(web.RoleDefinitions.GetByType(SPRoleType.Contributor));

item.RoleAssignments.Add(MyRoleAssignment);

//添加上级领导权限

//1.根据当前用户，获取到该用户的上级领导

SPList EmployRelationList= web.Lists["员工关系表"];

SPQuery query =newSPQuery();

query.Query = @"<Where><Eq><FieldRefName=""EmployeeId"" LookupId=""TRUE""/><Value Type=""User"">" +properties.CurrentUserId +"</Value></Eq></Where>";

SPListItemCollection sic =EmployRelationList.GetItems(query);

DataTable dt =sic.GetDataTable();

string LeaderUserId =string.Empty;

if (dt !=null &&dt.Rows.Count > 0)

{

LeaderUserId = dt.Rows[0]["Leader"].ToString();

}

//2.将当前上级领导添加到该项目权限中

if (LeaderUserId !=null &&LeaderUserId!="")

{

SPUser LeaderUser =web.EnsureUser(LeaderUserId);

MyRoleAssignment =newSPRoleAssignment(LeaderUser);

MyRoleAssignment.RoleDefinitionBindings.Add(web.RoleDefinitions.GetByType(SPRoleType.Reader));

item.RoleAssignments.Add(MyRoleAssignment);

}

item.Update();

web.Dispose();

}

});

}