mcs/class/System.Web.Mobile/System.Web.UI.MobileControls/ObjectListItem.cs

   1
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining
   4 // a copy of this software and associated documentation files (the
   5 // "Software"), to deal in the Software without restriction, including
   6 // without limitation the rights to use, copy, modify, merge, publish,
   7 // distribute, sublicense, and/or sell copies of the Software, and to
   8 // permit persons to whom the Software is furnished to do so, subject to
   9 // the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be
  12 // included in all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22 /**
  23  * Project   : Mono
  24  * Namespace : System.Web.UI.MobileControls
  25  * Class     : ObjectListCommandEventHandler
  26  * Author    : Gaurav Vaish
  27  *
  28  * Copyright : 2003 with Gaurav Vaish, and with
  29  *             Ximian Inc
  30  */
  31
  32 using System;
  33 using System.Web.Mobile;
  34
  35 namespace System.Web.UI.MobileControls
  36 {
  37         public class ObjectListItem : MobileListItem
  38         {
  39                 private ObjectList owner;
  40                 private string[]   fields;
  41                 private bool       dirty = false;
  42
  43                 internal ObjectListItem(ObjectList owner, object dataItem)
  44                                       : base(dataItem, null, null)
  45                 {
  46                         this.owner = owner;
  47                         this.fields = new string[owner.AllFields.Count];
  48                 }
  49
  50                 internal ObjectListItem(ObjectList owner)
  51                                     : this(owner, null)
  52                 {
  53                 }
  54
  55                 public string this[int key]
  56                 {
  57                         get
  58                         {
  59                                 if(fields != null && fields.Length >= key - 1
  60                                    && fields[key] != null)
  61                                         return fields[key];
  62                                 return String.Empty;
  63                         }
  64                         set
  65                         {
  66                                 if(fields != null && fields.Length >= key - 1)
  67                                         fields[key] = value;
  68                                 if(IsTrackingViewState)
  69                                         dirty = true;
  70                         }
  71                 }
  72
  73                 internal bool Dirty
  74                 {
  75                         get
  76                         {
  77                                 return dirty;
  78                         }
  79                         set
  80                         {
  81                                 dirty = value;
  82                         }
  83                 }
  84
  85                 public string this[string fieldName]
  86                 {
  87                         get
  88                         {
  89                                 return this[IndexOf(fieldName)];
  90                         }
  91                         set
  92                         {
  93                                 this[IndexOf(fieldName)] = value;
  94                         }
  95                 }
  96
  97                 [MonoTODO("Exception_Details_Not_Exact")]
  98                 private int IndexOf(string fieldName)
  99                 {
 100                         int index = owner.AllFields.IndexOf(fieldName);
 101                         if(index < 0)
 102                         {
 103                                 throw new ArgumentException("ObjectList_FieldNotFound");
 104                         }
 105                         return index;
 106                 }
 107
 108                 public override bool Equals(object obj)
 109                 {
 110                         bool retVal = false;
 111                         if(obj is ObjectListItem)
 112                         {
 113                                 ObjectListItem oli = (ObjectListItem) obj;
 114                                 if(oli.fields != null && this.fields != null)
 115                                 {
 116                                         if(this.fields.Length == oli.fields.Length)
 117                                         {
 118                                                 int i;
 119                                                 for(i = 0; i < fields.Length; i++)
 120                                                 {
 121                                                         if(fields[i] != oli.fields[i])
 122                                                                 break;
 123                                                 }
 124                                                 if(i == fields.Length)
 125                                                         retVal = true;
 126                                         }
 127                                 }
 128                                 retVal &= (Value == oli.Value);
 129                                 retVal &= (Text == oli.Text);
 130                         }
 131                         return retVal;
 132                 }
 133
 134                 public override int GetHashCode()
 135                 {
 136                         return (fields == null ? Value.GetHashCode() :
 137                                                      fields[0].GetHashCode());
 138                 }
 139         }
 140 }