2 // System.Web.UI.WebControls.Unit.cs
5 // Miguel de Icaza (miguel@novell.com)
6 // Ben Maurer (bmaurer@ximian.com).
8 // (C) 2005 Novell, Inc.
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.Globalization;
33 using System.ComponentModel;
34 using System.Security.Permissions;
36 namespace System.Web.UI.WebControls {
39 [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
40 [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
41 public class UnitConverter : TypeConverter {
43 public UnitConverter ()
47 public override bool CanConvertFrom (ITypeDescriptorContext context, Type sourceType)
49 if (sourceType == typeof (string))
52 return base.CanConvertFrom (context, sourceType);
55 public override bool CanConvertTo (ITypeDescriptorContext context, Type destinationType)
57 if (destinationType == typeof (string)) {
61 return base.CanConvertTo (context, destinationType);
64 public override object ConvertTo (ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
66 if (value is Unit && destinationType == typeof (string))
67 return ((Unit) value).ToString (culture);
69 return base.ConvertTo (context, culture, value, destinationType);
72 public override object ConvertFrom (ITypeDescriptorContext context, CultureInfo culture, object value)
77 Type t = value.GetType ();
78 if (t == typeof (string))
79 return new Unit ((string) value, culture);
81 return base.ConvertFrom (context, culture, value);