2 // System.Web.UI.XPathBinder
5 // Ben Maurer (bmaurer@users.sourceforge.net)
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.
32 using System
.Collections
;
33 using System
.Collections
.Specialized
;
35 using System
.Xml
.XPath
;
38 namespace System
.Web
.UI
{
39 public sealed class XPathBinder
{
40 private XPathBinder ()
44 public static object Eval (object container
, string xpath
)
46 if (xpath
== null || xpath
.Length
== 0)
47 throw new ArgumentNullException ("xpath");
49 IXPathNavigable factory
= container
as IXPathNavigable
;
52 throw new ArgumentException ("container");
54 object result
= factory
.CreateNavigator ().Evaluate (xpath
);
56 XPathNodeIterator itr
= result
as XPathNodeIterator
;
59 return itr
.Current
.Value
;
66 public static string Eval (object container
, string xpath
, string format
)
68 object result
= Eval (container
, xpath
);
72 if (format
== null || format
.Length
== 0)
73 return result
.ToString ();
75 return String
.Format (format
, result
);
78 public static IEnumerable
Select (object container
, string xpath
)
80 if (xpath
== null || xpath
.Length
== 0)
81 throw new ArgumentNullException ("xpath");
83 IXPathNavigable factory
= container
as IXPathNavigable
;
86 throw new ArgumentException ("container");
88 XPathNodeIterator itr
= factory
.CreateNavigator ().Select (xpath
);
89 ArrayList ret
= new ArrayList ();
91 while (itr
.MoveNext ()) {
92 IHasXmlNode nodeAccessor
= itr
.Current
as IHasXmlNode
;
93 if (nodeAccessor
== null)
94 throw new InvalidOperationException ();
95 ret
.Add (nodeAccessor
.GetNode ());