再会！我有一个事件处理程序，当您将文档添加到库时，它会将用户重定向到带有文档参数的 Web 表单。在 web 表单中，它以 Checkboxlist 的形式显示当前用户。用户选择适当的组，然后按下保存按钮。以下是根据所选组分配给文档的权限。问题是文档的分辨率没有根据选定的组分配。这是处理程序代码：
using System;
using System.Security.Permissions;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.Workflow;
using System.Web;
using System.IO;
namespace SharePointProject3.EventReceiver2
{
/// <summary>
/// События элемента списка
/// </summary>
public class EventReceiver2 : SPItemEventReceiver
{
private HttpContext _context;
public EventReceiver2()
{
_context = HttpContext.Current;
}
public override void ItemAdding(SPItemEventProperties properties)
{
//Временно отключаем срабатывание обработчика
EventFiringEnabled = false;
//Получаем файл из HttpContext
HttpPostedFile file = _context.Request.Files[0];
Stream fileStream = file.InputStream;
byte[] fileByte = new byte[file.ContentLength];
fileStream.Read(fileByte, 0, file.ContentLength);
//Загружаем файл в библиотеку документов
SPFile fileUploded = properties.Web.Files.Add(properties.AfterUrl, fileByte);
//Включаем обработчик обратно
EventFiringEnabled = true;
//Отменяем добавление файла, которое делал пользователь
properties.Cancel = true;
properties.Status = SPEventReceiverStatus.CancelWithRedirectUrl;
//Деламе редирект
properties.RedirectUrl = properties.Web.Url + "/test_perm/default.aspx?ID=" + fileUploded.UniqueId;
}
}
}
这是 Web 部件的代码：
using System;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using System.Text;
using Microsoft.SharePoint.Utilities;
namespace CustomGroupAssignment.VisualWebPart1
{
public partial class VisualWebPart1UserControl : UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
using (SPSite site = new SPSite("http://kviten:83/"))
{
using (SPWeb web = site.OpenWeb())
{
SPUser currentUser = web.CurrentUser;
SPDocumentLibrary docLib = (SPDocumentLibrary)web.Lists["Test_Doc_Lib"];
SPGroupCollection webGroups = currentUser.Groups;
CheckBoxList1.DataSource = webGroups;
CheckBoxList1.DataValueField = "ID";
CheckBoxList1.DataTextField = "Name";
CheckBoxList1.DataBind();
foreach (ListItem li in CheckBoxList1.Items)
{
li.Selected = true;
}
try
{
string itemID = Page.Request.Params["ID"];
SPDocumentLibrary doclib = (SPDocumentLibrary)web.GetList(SPUrlUtility.CombineUrl(web.Url, "/DocLib2/Forms/AllItems.aspx"));
SPListItem item = doclib.GetItemByUniqueId(new Guid(itemID));
}
catch (Exception ex)
{
//Выводим ошибку
}
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
using (SPSite site = new SPSite("http://kviten:83/"))
{
using (SPWeb web = site.OpenWeb())
{
SPUser currentUser = web.CurrentUser;
SPDocumentLibrary docLib = (SPDocumentLibrary)web.Lists["Test_Doc_Lib"];
try
{
string itemID = Page.Request.Params["ID"];
SPDocumentLibrary doclib = (SPDocumentLibrary)web.GetList(SPUrlUtility.CombineUrl(web.Url, "/Test_Doc_Lib/"));
SPListItem item = doclib.GetItemByUniqueId(new Guid(itemID));
//Break the role inheritance from List and remove any RoleAssignments
//item.BreakRoleInheritance(false);
//while (item.RoleAssignments.Count > 0)
//{
// item.RoleAssignments.Remove(0);
//}
if (!item.HasUniqueRoleAssignments)
{
item.ResetRoleInheritance();
item.Update();
item.BreakRoleInheritance(false);
item.Update();
}
foreach (ListItem li in CheckBoxList1.Items)
{
if (li.Selected) //Response.Write("- " + li.Text + "<br/>");
{
// Give permissions to a specific group
SPGroup group = web.Groups.GetByID(Convert.ToInt32(li.Value));
SPPrincipal principalGroup = group;
SPRoleAssignment roleassignment_group = new SPRoleAssignment(group);
SPRoleAssignment roleAssignment = item.RoleAssignments.GetAssignmentByPrincipal(principalGroup);
item.RoleAssignments.Add(roleAssignment);
item.Update();
}
}
}
catch (Exception ex)
{
//Выводим ошибку
}
Context.Response.Write("<script type='text/javascript'>window.frameElement.commitPopup();</script>");
Context.Response.Flush();
Context.Response.End();
}
}
}
protected void btnCancel_Click(object sender, EventArgs e)
{
Context.Response.Write("<script type='text/javascript'>window.frameElement.commitPopup();</script>");
Context.Response.Flush();
Context.Response.End();
}
}
}
我不明白为什么我不能为文档分配权限！请帮忙！如果您使用/ / Response.Write ("-" + li.Text + "<br/>");注释掉的 which，我们可以看到复选框未选中且未显示。item.ResetRoleInheritance(); 执行并仅将权限分配给没有组的当前用户。可能是什么原因？