RoleAssignmentCollection 类
表示定义为每个安全对象的所有角色分配RoleAssignment对象的集合。
继承层次结构
System.Object
Microsoft.SharePoint.Client.ClientObject
Microsoft.SharePoint.Client.ClientObjectCollection
Microsoft.SharePoint.Client.ClientObjectCollection<RoleAssignment>
Microsoft.SharePoint.Client.RoleAssignmentCollection
命名空间： Microsoft.SharePoint.Client
程序集： Microsoft.SharePoint.Client.Silverlight（位于 Microsoft.SharePoint.Client.Silverlight.dll 中）; Microsoft.SharePoint.Client.Phone（位于 Microsoft.SharePoint.Client.Phone.dll 中） Microsoft.SharePoint.Client（位于 Microsoft.SharePoint.Client.dll 中）
语法
声明
Public NotInheritable Class RoleAssignmentCollection _
Inherits ClientObjectCollection(Of RoleAssignment)
用法
Dim instance As RoleAssignmentCollection
public sealed class RoleAssignmentCollection : ClientObjectCollection<RoleAssignment>
备注
RoleAssignments属性的SPPermissionInfo、 SecurableObject、 List、 ListItem或Web课程，用于返回给定对象的角色分配的集合。
若要创建具有无角色定义绑定的角色分配，请使用RoleAssignment构造函数。若要添加绑定的角色定义角色分配，请使用ImportRoleDefinitionBindings方法。使用RoleAssignmentCollection类Add(RoleAssignment) 方法添加角色分配到的对象的角色分配的集合。
使用索引从集合中返回单个项目。例如，如果集合分配给一个名为myRoleAssignments变量，使用myRoleAssignments[index]中 C# 或myRoleAssignments(中Visual Basic，index)index所在的索引集合中的项目或包含角色定义的名称的字符串。
示例
此代码示例创建新的权限级别，并将用户添加到通知列表中具有该权限级别。
using System;
using Microsoft.SharePoint.Client;
namespace Microsoft.SDK.SharePointFoundation.Samples
{
class RoleAssignmentCollectionExample
{
static void Main()
{
string siteUrl = "http://MyServer/sites/MySiteCollection";
ClientContext clientContext = new ClientContext(siteUrl);
Site collSite = clientContext.Site;
Web site = clientContext.Web;
// Set up permissions.
BasePermissions permissions = new BasePermissions();
permissions.Set(PermissionKind.ViewListItems);
permissions.Set(PermissionKind.AddListItems);
permissions.Set(PermissionKind.EditListItems);
permissions.Set(PermissionKind.DeleteListItems);
// Create a new role definition.
RoleDefinitionCreationInformation rdcInfo = new RoleDefinitionCreationInformation();
rdcInfo.Name = "Manage List Items";
rdcInfo.Description = "Allows a user to manage list items";
rdcInfo.BasePermissions = permissions;
RoleDefinition roleDef = collSite.RootWeb.RoleDefinitions.Add(rdcInfo);
// Create a new RoleDefinitionBindingCollection object.
RoleDefinitionBindingCollection collRDB = new RoleDefinitionBindingCollection(clientContext);
// Add the role to the collection.
collRDB.Add(roleDef);
// Get the list to work with and break permissions so its permissions can be managed directly.
List targetList = site.Lists.GetByTitle("Announcements");
targetList.BreakRoleInheritance(true, false);
// Get the RoleAssignmentCollection for the target list.
RoleAssignmentCollection collRoleAssign = targetList.RoleAssignments;
// Add the user to the target list and assign the user to the new RoleDefinitionBindingCollection.
RoleAssignment rollAssign = collRoleAssign.Add(site.CurrentUser, collRDB);
clientContext.ExecuteQuery();
Console.WriteLine("Security modified");
}
}
}
线程安全性
该类型的任何公共 静态 (已共享 在 Visual Basic 中) 成员都是线程安全的。不保证任何实例成员都是线程安全的。