1 // 2 // System.Web.UI.PageStatePersister 3 // 4 // Author: 5 // Dick Porter <dick@ximian.com> 6 // 7 // Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com) 8 // 9 // Permission is hereby granted, free of charge, to any person obtaining 10 // a copy of this software and associated documentation files (the 11 // "Software"), to deal in the Software without restriction, including 12 // without limitation the rights to use, copy, modify, merge, publish, 13 // distribute, sublicense, and/or sell copies of the Software, and to 14 // permit persons to whom the Software is furnished to do so, subject to 15 // the following conditions: 16 // 17 // The above copyright notice and this permission notice shall be 18 // included in all copies or substantial portions of the Software. 19 // 20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 27 // 28 29 namespace System.Web.UI 30 { 31 public abstract class PageStatePersister 32 { 33 object control_state; 34 object view_state; 35 Page page; 36 IStateFormatter state_formatter; 37 PageStatePersister(Page page)38 protected PageStatePersister (Page page) 39 { 40 if (page == null) 41 throw new ArgumentNullException ("page"); 42 this.page = page; 43 } 44 45 public object ControlState { 46 get { return control_state; } 47 set { control_state = value; } 48 } 49 50 public object ViewState { 51 get { return view_state; } 52 set { view_state = value; } 53 } 54 55 protected Page Page { 56 get { return page; } 57 set { page = value; } 58 } 59 60 protected IStateFormatter StateFormatter 61 { 62 get { 63 if (state_formatter == null) 64 state_formatter = page.GetFormatter (); 65 return state_formatter; 66 } 67 } 68 Load()69 public abstract void Load (); 70 Save()71 public abstract void Save (); 72 } 73 } 74