2 // DataTypeAttribute.cs
5 // Atsushi Enomoto <atsushi@ximian.com>
7 // Copyright (C) 2008 Novell Inc. http://novell.com
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 using System.ComponentModel;
33 namespace System.ComponentModel.DataAnnotations
36 [AttributeUsage (AttributeTargets.Parameter | AttributeTargets.Field | AttributeTargets.Property | AttributeTargets.Method, AllowMultiple = false)]
38 [AttributeUsage (AttributeTargets.Property|AttributeTargets.Field, AllowMultiple = false)]
40 public class DataTypeAttribute : ValidationAttribute
42 public DataTypeAttribute (DataType dataType)
46 DisplayFormatAttribute displayFormat;
49 displayFormat = new DisplayFormatAttribute ();
50 displayFormat.ApplyFormatInEditMode = true;
51 displayFormat.ConvertEmptyStringToNull = true;
52 displayFormat.DataFormatString = "{0:t}";
60 DisplayFormat = displayFormat;
63 public DataTypeAttribute (string customDataType)
65 CustomDataType = customDataType;
68 public string CustomDataType { get; private set; }
69 public DataType DataType { get; private set; }
70 public DisplayFormatAttribute DisplayFormat { get; protected set; }
72 public virtual string GetDataTypeName ()
74 DataType dt = DataType;
75 if (dt == DataType.Custom)
76 return CustomDataType;
78 return dt.ToString ();
81 public override bool IsValid (object value)
83 // Returns alwasy true
84 // See: http://msdn.microsoft.com/en-us/library/cc679235.aspx