PermissionHelper.cs

using DevExpress.ExpressApp.DC;
using DevExpress.ExpressApp.Security;

public class PermissionHelper {
	SecurityStrategyComplex Security { get; set; }
	public PermissionHelper(SecurityStrategyComplex security) {
		Security = security;
	}
	public ObjectPermission CreateObjectPermission(ITypeInfo typeInfo, object entity) {
		ObjectPermission objectPermission = new ObjectPermission();
		objectPermission.Key = typeInfo.KeyMember.GetValue(entity).ToString();
		objectPermission.Write = Security.CanWrite(entity);
		objectPermission.Delete = Security.CanDelete(entity);
		IEnumerable<IMemberInfo> members = GetPersistentMembers(typeInfo);
		foreach(IMemberInfo member in members) {
			MemberPermission memberPermission = CreateMemberPermission(entity, member);
			objectPermission.Data.Add(member.Name, memberPermission);
		}
		return objectPermission;
	}
	public MemberPermission CreateMemberPermission(object entity, IMemberInfo member) {
		return new MemberPermission {
			Read = Security.CanRead(entity, member.Name),
			Write = Security.CanWrite(entity, member.Name)
		};
	}
	private static IEnumerable<IMemberInfo> GetPersistentMembers(ITypeInfo typeInfo) {
		return typeInfo.Members.Where(p => p.IsVisible && p.IsProperty && (p.IsPersistent || p.IsList));
	}
	public TypePermission CreateTypePermission(ITypeInfo typeInfo) {
		Type type = typeInfo.Type;
		TypePermission typePermission = new TypePermission();
		typePermission.Create = Security.CanCreate(type);
		IEnumerable<IMemberInfo> members = GetPersistentMembers(typeInfo);
		foreach(IMemberInfo member in members) {
			bool writePermission = Security.CanWrite(type, member.Name);
			typePermission.Data.Add(member.Name, writePermission);
		}
		return typePermission;
	}
}