class/System.Xaml/System.Windows.Markup/Reference.cs

   1 //
   2 // Copyright (C) 2010 Novell Inc. http://novell.com
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining
   5 // a copy of this software and associated documentation files (the
   6 // "Software"), to deal in the Software without restriction, including
   7 // without limitation the rights to use, copy, modify, merge, publish,
   8 // distribute, sublicense, and/or sell copies of the Software, and to
   9 // permit persons to whom the Software is furnished to do so, subject to
  10 // the following conditions:
  11 //
  12 // The above copyright notice and this permission notice shall be
  13 // included in all copies or substantial portions of the Software.
  14 //
  15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22 //
  23 using System;
  24 using System.Collections;
  25 using System.Collections.Generic;
  26 using System.ComponentModel;
  27 using System.Reflection;
  28 using System.Xaml;
  29 using System.Xaml.Schema;
  30
  31 namespace System.Windows.Markup
  32 {
  33         [ContentProperty ("Name")]
  34         public class Reference : MarkupExtension
  35         {
  36                 public Reference ()
  37                 {
  38                 }
  39
  40                 public Reference (string name)
  41                 {
  42                         Name = name;
  43                 }
  44
  45                 [ConstructorArgument ("name")]
  46                 public string Name { get; set; }
  47
  48                 public override object ProvideValue (IServiceProvider serviceProvider)
  49                 {
  50                         if (serviceProvider == null)
  51                                 throw new ArgumentNullException ("serviceProvider");
  52                         if (Name == null)
  53                                 throw new InvalidOperationException ("Name property is not set");
  54                         var r = ((object) serviceProvider) as IXamlNameResolver;
  55                         if (r == null)
  56                                 throw new ArgumentException ("serviceProvider does not implement IXamlNameResolver");
  57                         return r.Resolve (Name);
  58                 }
  59         }
  60 }