2010-05-25 Jb Evain <jbevain@novell.com>
[mcs.git] / class / System.Xaml / System.Windows.Markup / StaticExtension.cs
blob24df4f5a1694468cabab72d8a500e71f74f5680c
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.
23 using System;
24 using System.Collections.Generic;
25 using System.ComponentModel;
26 using System.Reflection;
27 using System.Xaml.Schema;
29 namespace System.Windows.Markup
31 [MarkupExtensionReturnType (typeof (object))]
32 [TypeConverter (typeof (StaticExtensionConverter))]
33 [System.Runtime.CompilerServices.TypeForwardedFrom (Consts.AssemblyPresentationFramework_3_5)]
34 public class StaticExtension : MarkupExtension
36 public StaticExtension ()
40 public StaticExtension (string member)
42 Member = member;
45 [ConstructorArgument ("member")]
46 public string Member { get; set; }
48 [DefaultValue (null)]
49 public Type MemberType { get; set; }
51 public override object ProvideValue (IServiceProvider serviceProvider)
53 if (Member == null)
54 throw new InvalidOperationException ("Member property must be set to StaticExtension before calling ProvideValue method.");
55 if (MemberType != null) {
56 var pi = MemberType.GetProperty (Member, BindingFlags.Public | BindingFlags.Static);
57 if (pi != null)
58 return pi.GetValue (null, null);
59 var fi = MemberType.GetField (Member, BindingFlags.Public | BindingFlags.Static);
60 if (fi != null)
61 return fi.GetValue (null);
63 // there might be some cases that it could still
64 // resolve a static member without MemberType,
65 // but we don't know any of such so far.
66 throw new ArgumentException (String.Format ("Member '{0}' could not be resolved to a static member", Member));