mcs/class/System.Web/System.Web.UI.WebControls/ParameterCollection.cs

   1 //
   2 // System.Web.UI.WebControls/ParameterCollection.cs
   3 //
   4 // Author: Todd Berman <tberman@gentoo.org>
   5 //
   6 // (C) 2003 Todd Berman
   7
   8 #if NET_2_0
   9
  10 using System.Web.UI;
  11 using System.Collections;
  12 using System.Collections.Specialized;
  13
  14 namespace System.Web.UI.WebControls
  15 {
  16
  17         public class ParameterCollection : StateManagedCollection
  18         {
  19
  20                 private static Type[] _knownTypes = new Type[] {
  21                                                     typeof (ControlParameter),
  22                                                     typeof (CookieParameter),
  23                                                     typeof (FormParameter),
  24                                                     typeof (Parameter),
  25                                                     typeof (QueryStringParameter),
  26                                                     typeof (SessionParameter) };
  27
  28                 private EventHandler _parametersChanged;
  29                 private KeyedList _values;
  30
  31
  32                 public int Add (Parameter param)
  33                 {
  34                         return ((IList)this).Add (param);
  35                 }
  36
  37                 public int Add (string name, string value)
  38                 {
  39                         return ((IList)this).Add (new Parameter (name, TypeCode.Object, value));
  40                 }
  41
  42                 public int Add (string name, TypeCode type, string value)
  43                 {
  44                         return ((IList)this).Add (new Parameter (name, type, value));
  45                 }
  46
  47                 protected override object CreateKnownType (int idx)
  48                 {
  49                         switch (idx) {
  50                         case 0:
  51                                 return new ControlParameter ();
  52                                 break;
  53                         case 1:
  54                                 return new CookieParameter ();
  55                                 break;
  56                         case 2:
  57                                 return new FormParameter ();
  58                                 break;
  59                         case 3:
  60                                 return new Parameter ();
  61                                 break;
  62                         case 4:
  63                                 return new QueryStringParameter ();
  64                                 break;
  65                         case 5:
  66                                 return new SessionParameter ();
  67                                 break;
  68                         }
  69
  70                         throw new ArgumentOutOfRangeException ("index");
  71                 }
  72
  73                 protected override Type[] GetKnownTypes ()
  74                 {
  75                         return _knownTypes;
  76                 }
  77
  78                 public IOrderedDictionary GetValues (Control control)
  79                 {
  80                         if (_values == null)
  81                         {
  82                                 _values = new KeyedList ();
  83                                 foreach (Parameter param in this)
  84                                 {
  85                                         string name = param.Name;
  86                                         for (int i = 1; _values.Contains (name); i++)
  87                                         {
  88                                                 name = param.Name + i.ToString ();
  89                                         }
  90                                         _values.Add (name, param.ParameterValue);
  91                                 }
  92                         }
  93                         return _values;
  94                 }
  95
  96                 public void Insert (int idx, Parameter param)
  97                 {
  98                         ((IList)this).Insert (idx, param);
  99                 }
 100
 101                 protected override void OnClearComplete ()
 102                 {
 103                         base.OnClearComplete ();
 104                         OnParametersChanged (EventArgs.Empty);
 105                 }
 106
 107                 protected override void OnInsert (int idx, object value)
 108                 {
 109                         base.OnInsert (idx, value);
 110                         ((Parameter)value).SetOwnerCollection (this);
 111                 }
 112
 113                 protected override void OnInsertComplete (int idx, object value)
 114                 {
 115                         base.OnInsertComplete (idx, value);
 116                         OnParametersChanged (EventArgs.Empty);
 117                 }
 118
 119                 protected virtual void OnParametersChanged (EventArgs e)
 120                 {
 121                         if (_parametersChanged != null)
 122                                 _parametersChanged(this, e);
 123
 124                         _values = null;
 125                 }
 126
 127                 protected override void OnValidate (object o)
 128                 {
 129                         base.OnValidate (o);
 130
 131                         if ((o is Parameter) == false)
 132                                 throw new ArgumentException ("o is not a Parameter");
 133                 }
 134
 135                 public void Remove (Parameter param)
 136                 {
 137                         ((IList)this).Remove (param);
 138                 }
 139
 140                 public void RemoveAt (int idx)
 141                 {
 142                         ((IList)this).RemoveAt (idx);
 143                 }
 144
 145                 [MonoTODO("eh?")]
 146                 protected override void SetDirtyObject (object o)
 147                 {
 148                         throw new NotImplementedException ();
 149                 }
 150
 151                 internal void CallOnParameterChanged ()
 152                 {
 153                         OnParametersChanged (EventArgs.Empty);
 154                 }
 155
 156                 private int IndexOfString (string name)
 157                 {
 158                         for (int i = 0; i < Count; i++)
 159                         {
 160                                 if (((Parameter)((IList)this)[i]).Name == name)
 161                                         return i;
 162                         }
 163                         return -1;
 164                 }
 165
 166                 public Parameter this[int idx] {
 167                         get {
 168                                 return (Parameter) ((IList)this)[idx];
 169                         }
 170                         set {
 171                                 ((IList)this)[idx] = value;
 172                         }
 173                 }
 174
 175                 public Parameter this[string name] {
 176                         get {
 177                                 int idx = IndexOfString (name);
 178                                 if (idx == -1)
 179                                         return null;
 180                                 return ((Parameter) ((IList)this)[idx]);
 181                         }
 182                         set {
 183                                 int idx = IndexOfString (name);
 184                                 if (idx == -1) {
 185                                         Add (value);
 186                                         return;
 187                                 }
 188                                 ((IList)this)[idx] = value;
 189                         }
 190                 }
 191
 192                 public event EventHandler ParametersChanged {
 193                         add { _parametersChanged += value; }
 194                         remove { _parametersChanged -= value; }
 195                 }
 196         }
 197 }
 198
 199 #endif