2005-01-31 Zoltan Varga <vargaz@freemail.hu>
[mono.git] / mcs / class / System.Web / System.Web.UI / CollectionBuilder.cs
1 //
2 // System.Web.UI.CollectionBuilder.cs
3 //
4 // Authors:
5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
6 //
7 // (c) 2003 Ximian, Inc. (http://www.ximian.com)
8 //
9
10 //
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:
18 // 
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
21 // 
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.
29 //
30
31 using System;
32 using System.Collections;
33 using System.Reflection;
34
35 namespace System.Web.UI
36 {
37         sealed class CollectionBuilder : ControlBuilder
38         {
39                 Type elementType;
40
41                 internal CollectionBuilder ()
42                 {
43                 }
44
45                 public override void AppendLiteralString (string s)
46                 {
47                         if (s != null && s.Trim () != "")
48                                 throw new HttpException ("Literal content not allowed for " + ControlType);
49                 }
50
51                 public override Type GetChildControlType (string tagName, IDictionary attribs)
52                 {
53                         Type t = Root.GetChildControlType (tagName, attribs);
54                         if (elementType != null && !elementType.IsAssignableFrom (t)) 
55                                 throw new HttpException ("Cannot add a " + t + " to " + elementType);
56
57                         return t;
58                 }
59
60                 public override void Init (TemplateParser parser,
61                                            ControlBuilder parentBuilder,
62                                            Type type,
63                                            string tagName,
64                                            string id,
65                                            IDictionary attribs)
66                 {
67                         base.Init (parser, parentBuilder, type, tagName, id, attribs);
68
69                         PropertyInfo prop = parentBuilder.ControlType.GetProperty (tagName, flagsNoCase);
70                         SetControlType (prop.PropertyType);
71
72                         prop = ControlType.GetProperty ("Item", flagsNoCase & ~BindingFlags.IgnoreCase);
73                         elementType = prop.PropertyType;
74                 }
75         }
76 }
77