2008-02-26 Ivan N. Zlatev <contact@i-nz.net>

[mono.git] / mcs / class / System / System.ComponentModel / ReferenceConverter.cs

diff --git a/mcs/class/System/System.ComponentModel/ReferenceConverter.cs b/mcs/class/System/System.ComponentModel/ReferenceConverter.cs
index a2e11ee0605ff6db7a9e77efd8026bad8fc1c231..41cfd2a16e4996a5b32de86f8ce74938b81c81a4 100644 (file)
--- a/mcs/class/System/System.ComponentModel/ReferenceConverter.cs
+++ b/mcs/class/System/System.ComponentModel/ReferenceConverter.cs
@@ -4,12 +4,34 @@
 // Authors:
 //   Martin Willemoes Hansen (mwh@sysrq.dk)
 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
+//   Ivan N. Zlatev (contact@i-nz.net)
 //
 // (C) 2003 Martin Willemoes Hansen
 // (C) 2003 Andreas Nahr
+
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
 
 using System.Globalization;
+using System.Collections;
 
 namespace System.ComponentModel
 {
@@ -23,34 +45,35 @@ namespace System.ComponentModel
                public override bool CanConvertFrom (ITypeDescriptorContext context,
                                                     Type sourceType)
                {
-                       if (sourceType == typeof (string)) 
+                       if (sourceType == typeof (string))
                                return true;
                        return base.CanConvertFrom (context, sourceType);
                }
 
-               [MonoTODO]
                public override object ConvertFrom (ITypeDescriptorContext context,
                                                    CultureInfo culture,
                                                    object value)
                {
-                       // Add implementation
+                       if (value is string && ((string)value) == "(none)")
+                               return null;
                        return base.ConvertFrom(context, culture, value);
                }
 
-               [MonoTODO]
                public override object ConvertTo (ITypeDescriptorContext context,
                                                  CultureInfo culture,
                                                  object value,
                                                  Type destinationType)
                {
-                       // Add implementation
+                       if (destinationType == typeof (string) && value == null)
+                               return "(none)";
                        return base.ConvertTo(context, culture, value, destinationType);
                }
 
-               [MonoTODO]
                public override StandardValuesCollection GetStandardValues (ITypeDescriptorContext context)
                {
-                       throw new NotImplementedException();
+                       ArrayList values = new ArrayList ();
+                       values.Add (null);
+                       return new StandardValuesCollection (values);
                }
 
                public override bool GetStandardValuesExclusive (ITypeDescriptorContext context)