mcs/class/System.Web/System.Web.UI.HtmlControls/HtmlInputText.cs

   1 //
   2 // System.Web.UI.HtmlControls.HtmlInputText.cs
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2005 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 using System.ComponentModel;
  30 using System.Collections.Specialized;
  31 using System.Globalization;
  32
  33 namespace System.Web.UI.HtmlControls {
  34
  35         [DefaultEvent ("ServerChange")]
  36         [ValidationProperty ("Value")]
  37         public class HtmlInputText : HtmlInputControl, IPostBackDataHandler {
  38
  39                 private static readonly object serverChangeEvent = new object ();
  40
  41
  42                 public HtmlInputText ()
  43                         : base ("text")
  44                 {
  45                 }
  46
  47                 public HtmlInputText (string type)
  48                         : base (type)
  49                 {
  50                 }
  51
  52
  53                 [DefaultValue ("")]
  54                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  55                 [WebSysDescription("")]
  56                 [WebCategory("Behavior")]
  57                 public int MaxLength {
  58                         get {
  59                                 string s = Attributes ["maxlength"];
  60                                 return (s == null) ? -1 : Convert.ToInt32 (s);
  61                         }
  62                         set {
  63                                 if (value == -1)
  64                                         Attributes.Remove ("maxlength");
  65                                 else
  66                                         Attributes ["maxlength"] = value.ToString ();
  67                         }
  68                 }
  69
  70 #if NET_2_0
  71                 [DefaultValue (-1)]
  72 #else
  73                 [DefaultValue ("")]
  74 #endif
  75                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
  76                 [WebSysDescription("")]
  77                 [WebCategory("Appearance")]
  78                 public int Size {
  79                         get {
  80                                 string s = Attributes ["size"];
  81                                 return (s == null) ? -1 : Convert.ToInt32 (s);
  82                         }
  83                         set {
  84                                 if (value == -1)
  85                                         Attributes.Remove ("size");
  86                                 else
  87                                         Attributes ["size"] = value.ToString ();
  88                         }
  89                 }
  90
  91                 public override string Value {
  92                         get {
  93                                 string s = Attributes ["value"];
  94                                 return (s == null) ? String.Empty : s;
  95                         }
  96                         set {
  97                                 if (value == null)
  98                                         Attributes.Remove ("value");
  99                                 else
 100                                         Attributes ["value"] = value;
 101                         }
 102                 }
 103
 104
 105 #if NET_2_0
 106                 protected internal
 107 #else
 108                 protected
 109 #endif
 110                 override void OnPreRender (EventArgs e)
 111                 {
 112                         base.OnPreRender (e);
 113                 }
 114
 115                 protected virtual void OnServerChange (EventArgs e)
 116                 {
 117                         EventHandler serverChange = (EventHandler) Events [serverChangeEvent];
 118                         if (serverChange != null)
 119                                 serverChange (this, e);
 120                 }
 121 #if NET_2_0
 122                 protected virtual bool LoadPostData (string postDataKey, NameValueCollection postCollection)
 123                 {
 124                         return DefaultLoadPostData (postDataKey, postCollection);
 125                 }
 126
 127                 protected virtual void RaisePostDataChangedEvent ()
 128                 {
 129                         OnServerChange (EventArgs.Empty);
 130                 }
 131 #else
 132                 protected override void RenderAttributes (HtmlTextWriter writer)
 133                 {
 134                         // the Type property can be, indirectly, changed by using the Attributes property
 135                         if (String.Compare (Type, 0, "password", 0, 8, true, CultureInfo.InvariantCulture) == 0) {
 136                                 Attributes.Remove ("value");
 137                         }
 138
 139                         base.RenderAttributes (writer);
 140                 }
 141 #endif
 142
 143                 internal bool DefaultLoadPostData (string postDataKey, NameValueCollection postCollection)
 144                 {
 145                         string s = postCollection [postDataKey];
 146                         if (Attributes ["value"] != s) {
 147                                 Attributes ["value"] = s;
 148                                 return true;
 149                         }
 150                         return false;
 151                 }
 152
 153                 bool IPostBackDataHandler.LoadPostData (string postDataKey, NameValueCollection postCollection)
 154                 {
 155 #if NET_2_0
 156                         return LoadPostData (postDataKey, postCollection);
 157 #else
 158                         return DefaultLoadPostData (postDataKey, postCollection);
 159 #endif
 160                 }
 161
 162                 void IPostBackDataHandler.RaisePostDataChangedEvent ()
 163                 {
 164 #if NET_2_0
 165                         RaisePostDataChangedEvent ();
 166 #else
 167                         OnServerChange (EventArgs.Empty);
 168 #endif
 169                 }
 170
 171
 172                 [WebSysDescription("")]
 173                 [WebCategory("Action")]
 174                 public event EventHandler ServerChange {
 175                         add { Events.AddHandler (serverChangeEvent, value); }
 176                         remove { Events.RemoveHandler (serverChangeEvent, value); }
 177                 }
 178         }
 179 }