2 // System.Web.UI.WebControls.SessionParameter
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
;
36 namespace System
.Web
.UI
.WebControls
{
37 public class SessionParameter
: Parameter
{
39 public SessionParameter () : base ()
43 protected SessionParameter (SessionParameter original
) : base (original
)
45 this.SessionField
= original
.SessionField
;
48 public SessionParameter (string name
, string sessionField
) : base (name
)
50 SessionField
= sessionField
;
53 public SessionParameter (string name
, TypeCode type
, string sessionField
) : base (name
, type
)
55 SessionField
= sessionField
;
58 protected override Parameter
Clone ()
60 return new SessionParameter (this);
63 protected override object Evaluate (Control control
)
65 if (control
== null || control
.Page
== null || control
.Page
.Session
== null)
68 return control
.Page
.Session
[SessionField
];
71 public string SessionField
{
73 string s
= ViewState
["SessionField"] as string;
80 if (SessionField
!= value) {
81 ViewState
["SessionField"] = value;
82 OnParameterChanged ();