How do I verify user rights on SharePoint 2010 using the client object model?

Question

The following code always returns false (which is incorrect since the user has full permission at the site level):

Site site;
BasePermissions permissionMask;
ClientResult<bool> result;

permissionMask = new BasePermissions();
permissionMask.Set(PermissionKind.ManageWeb);
result = site.DoesUserHavePermissions(permissionMask);

return result.Value;

I'm trying to use the new SharePoint 2010 client object model. I was delighted to find the DoUserHavePermissions method, but it seems I'm not sure if I know to use it. I have no idea if I am using the correct mask or should I specify the user account for which I want to check the permission level? Any help would be greatly appreciated. Thank you

Answer 1

- . SharePoint Client.

:

ClientContext clientContext;
Site site;
BasePermissions permissionMask;
ClientResult<bool> result;

permissionMask = new BasePermissions();
permissionMask.Set(PermissionKind.ManageWeb);
//if we want to check ManageWeb permission
clientContext = new ClientContext(siteUri);
//siteUri is a method parameter passed as a string
clientContext.Credentials = credential;
//credential is a method parameter passed as a NetworkCredential object
//that is the user for which we are checking the ManageWeb permission
site = clientContext.Web;
result = site.DoesUserHavePermissions(permissionMask);

return result.Value;

true, ManageWeb, false, . .

Answer 2

, , . , .

using (var context = new ClientContext(siteUrl))
{
   context.Load(context.Web);
   context.ExecuteQuery();
   BasePermissions permissionMask;
   ClientResult<bool> hasPermissions;
   permissionMask = new BasePermissions();
   permissionMask.Set(PermissionKind.ManageWeb);
   hasPermissions = context.Web.DoesUserHavePermissions(permissionMask);

}