4 // Copyright (c) 2011 Novell
7 // Jérémie "garuma" Laval
9 // Permission is hereby granted, free of charge, to any person obtaining a copy
10 // of this software and associated documentation files (the "Software"), to deal
11 // in the Software without restriction, including without limitation the rights
12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 // copies of the Software, and to permit persons to whom the Software is
14 // furnished to do so, subject to the following conditions:
16 // The above copyright notice and this permission notice shall be included in
17 // all copies or substantial portions of the Software.
19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
31 using System.Data.Common;
32 using System.Collections.Generic;
33 using System.ComponentModel;
35 namespace WebMatrix.Data
37 public sealed class DynamicRecord : DynamicObject, ICustomTypeDescriptor
39 readonly Dictionary<string, object> fields;
41 internal DynamicRecord (Dictionary<string, object> fields)
44 Columns = new List<string> (fields.Keys).AsReadOnly ();
47 public IList<string> Columns {
52 public object this[string name] {
54 var retval = fields[name];
56 if (retval == DBNull.Value)
63 public object this[int index] {
65 var retval = fields[Columns[index]];
67 if (retval == DBNull.Value)
74 public override IEnumerable<string> GetDynamicMemberNames ()
79 public override bool TryGetMember (GetMemberBinder binder, out object result)
81 bool success = fields.TryGetValue (binder.Name, out result);
83 if (result == DBNull.Value)
89 AttributeCollection ICustomTypeDescriptor.GetAttributes ()
94 string ICustomTypeDescriptor.GetClassName ()
99 string ICustomTypeDescriptor.GetComponentName ()
104 TypeConverter ICustomTypeDescriptor.GetConverter ()
109 EventDescriptor ICustomTypeDescriptor.GetDefaultEvent ()
114 PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty ()
119 Object ICustomTypeDescriptor.GetEditor (Type editorBaseType)
124 Object ICustomTypeDescriptor.GetPropertyOwner (PropertyDescriptor pd)
129 EventDescriptorCollection ICustomTypeDescriptor.GetEvents ()
134 EventDescriptorCollection ICustomTypeDescriptor.GetEvents (Attribute[] attributes)
139 PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties ()
144 PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties (Attribute[] attributes)