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

   1 //
   2 // System.Web.UI.WebControls.TextBox.cs
   3 //
   4 // Authors:
   5 //      Ben Maurer (bmaurer@novell.com)
   6 //
   7 // (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.Collections.Specialized;
  30 using System.ComponentModel;
  31 using System.Security.Permissions;
  32
  33 namespace System.Web.UI.WebControls {
  34
  35         // CAS
  36         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  37         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  38         // attributes
  39         [DataBindingHandler ("System.Web.UI.Design.TextDataBindingHandler, " + Consts.AssemblySystem_Design)]
  40         [DefaultEvent ("TextChanged")]
  41         [DefaultProperty ("Text")]
  42         [ValidationProperty ("Text")]
  43         [ControlBuilder (typeof (TextBoxControlBuilder))]
  44 #if NET_2_0
  45         [Designer ("System.Web.UI.Design.WebControls.PreviewControlDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  46         [ParseChildren (true, "Text")]
  47         [ControlValueProperty ("Text", null)]
  48         [SupportsEventValidation]
  49 #else
  50         [ParseChildren (false)]
  51 #endif
  52         public class TextBox : WebControl, IPostBackDataHandler
  53 #if NET_2_0
  54         , IEditableTextControl, ITextControl
  55 #endif
  56         {
  57                 protected override void AddAttributesToRender (HtmlTextWriter w)
  58                 {
  59                         if (Page != null)
  60                                 Page.VerifyRenderingInServerForm (this);
  61
  62                         base.AddAttributesToRender (w);
  63
  64                         switch (TextMode) {
  65                         case TextBoxMode.MultiLine:
  66                                 if (Columns != 0)
  67                                         w.AddAttribute (HtmlTextWriterAttribute.Cols, Columns.ToString ());
  68                                 if (Rows != 0)
  69                                         w.AddAttribute (HtmlTextWriterAttribute.Rows, Rows.ToString ());
  70                                 if (!Wrap)
  71                                         w.AddAttribute (HtmlTextWriterAttribute.Wrap, "off");
  72
  73                                 break;
  74
  75                         case TextBoxMode.SingleLine:
  76                         case TextBoxMode.Password:
  77
  78                                 if (TextMode == TextBoxMode.Password)
  79                                         w.AddAttribute (HtmlTextWriterAttribute.Type, "password");
  80                                 else {
  81                                         w.AddAttribute (HtmlTextWriterAttribute.Type, "text");
  82                                         if (Text.Length > 0)
  83                                                 w.AddAttribute (HtmlTextWriterAttribute.Value, Text);
  84                                 }
  85
  86                                 if (Columns != 0)
  87                                         w.AddAttribute (HtmlTextWriterAttribute.Size, Columns.ToString ());
  88
  89                                 if (MaxLength != 0)
  90                                         w.AddAttribute (HtmlTextWriterAttribute.Maxlength, MaxLength.ToString ());
  91                                 break;
  92                         }
  93
  94                         if (AutoPostBack)
  95                                 w.AddAttribute (HtmlTextWriterAttribute.Onchange, Page.ClientScript.GetPostBackClientHyperlink (this, ""));
  96
  97                         if (ReadOnly)
  98                                 w.AddAttribute (HtmlTextWriterAttribute.ReadOnly, "ReadOnly");
  99 #if NET_2_0
 100                         if (ID != null)
 101                                 w.AddAttribute (HtmlTextWriterAttribute.Name, UniqueID);
 102 #else
 103                         w.AddAttribute (HtmlTextWriterAttribute.Name, UniqueID);
 104 #endif
 105                 }
 106
 107                 protected override void AddParsedSubObject (object obj)
 108                 {
 109                         LiteralControl l = obj as LiteralControl;
 110                         if (l != null)
 111                                 Text = l.Text;
 112                 }
 113
 114                 [MonoTODO]
 115 #if NET_2_0
 116                 protected internal
 117 #else
 118                 protected
 119 #endif
 120                 override void OnPreRender (EventArgs e)
 121                 {
 122                         // What do i do here?
 123                         base.OnPreRender (e);
 124                 }
 125
 126                 [MonoTODO ("Am I missing something here")]
 127 #if NET_2_0
 128                 protected internal
 129 #else
 130                 protected
 131 #endif
 132                 override void Render (HtmlTextWriter w)
 133                 {
 134                         // Why didn't msft just override RenderContents!?
 135                         RenderBeginTag (w);
 136                         if (TextMode == TextBoxMode.MultiLine)
 137                                 HttpUtility.HtmlEncode (Text, w);
 138                         RenderEndTag (w);
 139                 }
 140
 141 #if NET_2_0
 142                 protected virtual
 143 #endif
 144                 bool LoadPostData (string postDataKey, NameValueCollection postCollection)
 145                 {
 146                         if (Text != postCollection [postDataKey]) {
 147                                 Text = postCollection [postDataKey];
 148                                 return true;
 149                         }
 150
 151                         return false;
 152                 }
 153
 154 #if NET_2_0
 155                 protected virtual
 156 #endif
 157                 void RaisePostDataChangedEvent ()
 158                 {
 159                         OnTextChanged (EventArgs.Empty);
 160                 }
 161
 162                 bool IPostBackDataHandler.LoadPostData (string postDataKey, NameValueCollection postCollection)
 163                 {
 164                         return LoadPostData (postDataKey, postCollection);
 165                 }
 166
 167                 void IPostBackDataHandler.RaisePostDataChangedEvent ()
 168                 {
 169                         RaisePostDataChangedEvent ();
 170                 }
 171
 172 #if NET_2_0
 173                 [MonoTODO]
 174                 protected override object SaveViewState ()
 175                 {
 176                         return base.SaveViewState ();
 177                 }
 178 #endif
 179
 180 #if NET_2_0
 181                 [DefaultValue (AutoCompleteType.None)]
 182                 [Themeable (false)]
 183                 [MonoTODO]
 184                 public virtual AutoCompleteType AutoCompleteType
 185                 {
 186                         get {
 187                                 throw new NotImplementedException ();
 188                         }
 189                         set {
 190                                 throw new NotImplementedException ();
 191                         }
 192                 }
 193 #endif
 194
 195                 [DefaultValue(false)]
 196 #if NET_2_0
 197                 [Themeable (false)]
 198 #endif
 199                 [WebSysDescription ("")]
 200                 [WebCategory ("Behavior")]
 201                 public virtual bool AutoPostBack {
 202                         get {
 203                                 return ViewState.GetBool ("AutoPostBack", false);
 204                         }
 205                         set {
 206                                 ViewState ["AutoPostBack"] = value;
 207                         }
 208                 }
 209
 210 #if NET_2_0
 211                 [DefaultValue (false)]
 212                 [Themeable (false)]
 213                 public virtual bool CausesValidation
 214                 {
 215                         get {
 216                                 return ViewState.GetBool ("CausesValidation", false);
 217                         }
 218                         set {
 219                                 ViewState["CausesValidation"] = value;
 220                         }
 221                 }
 222 #endif
 223
 224 #if ONLY_1_1
 225                 [Bindable(true)]
 226 #endif
 227                 [DefaultValue(0)]
 228                 [WebSysDescription ("")]
 229                 [WebCategory ("Appearance")]
 230                 public virtual int Columns {
 231                         get {
 232                                 return ViewState.GetInt ("Columns", 0);
 233                         }
 234                         set {
 235                                 if (value < 0)
 236                                         throw new ArgumentOutOfRangeException("value", "Columns value has to be 0 for 'not set' or bigger than 0.");
 237                                 else
 238                                         ViewState ["Columns"] = value;
 239                         }
 240                 }
 241
 242 #if ONLY_1_1
 243                 [Bindable(true)]
 244 #endif
 245                 [DefaultValue(0)]
 246 #if NET_2_0
 247                 [Themeable (false)]
 248 #endif
 249                 [WebSysDescription ("")]
 250                 [WebCategory ("Behavior")]
 251                 public virtual int MaxLength {
 252                         get {
 253                                 return ViewState.GetInt ("MaxLength", 0);
 254                         }
 255                         set {
 256                                 if (value < 0)
 257                                         throw new ArgumentOutOfRangeException("value", "MaxLength value has to be 0 for 'not set' or bigger than 0.");
 258                                 else
 259                                         ViewState ["MaxLength"] = value;
 260                         }
 261                 }
 262
 263                 [Bindable(true)]
 264                 [DefaultValue(false)]
 265 #if NET_2_0
 266                 [Themeable (false)]
 267 #endif
 268                 [WebSysDescription ("")]
 269                 [WebCategory ("Behavior")]
 270                 public virtual bool ReadOnly {
 271                         get {
 272                                 return ViewState.GetBool ("ReadOnly", false);
 273                         }
 274                         set {
 275                                 ViewState ["ReadOnly"] = value;
 276                         }
 277                 }
 278
 279 #if ONLY_1_1
 280                 [Bindable(true)]
 281 #endif
 282                 [DefaultValue(0)]
 283 #if NET_2_0
 284                 [Themeable (false)]
 285 #endif
 286                 [WebSysDescription ("")]
 287                 [WebCategory ("Behavior")]
 288                 public virtual int Rows {
 289                         get {
 290                                 return ViewState.GetInt ("Rows", 0);
 291                         }
 292                         set {
 293                                 if (value < 0)
 294                                         throw new ArgumentOutOfRangeException("value", "Rows value has to be 0 for 'not set' or bigger than 0.");
 295                                 else
 296                                         ViewState ["Rows"] = value;
 297                         }
 298                 }
 299
 300 #if NET_2_0 && HAVE_CONTROL_ADAPTERS
 301                 protected virtual new
 302 #else
 303                 protected override
 304 #endif
 305                 HtmlTextWriterTag TagKey {
 306                         get {
 307                                 return TextMode == TextBoxMode.MultiLine ? HtmlTextWriterTag.Textarea : HtmlTextWriterTag.Input;
 308                         }
 309                 }
 310
 311 #if NET_2_0
 312                 [Bindable(true, BindingDirection.TwoWay)]
 313 #else
 314                 [Bindable(true)]
 315 #endif
 316                 [DefaultValue("")]
 317                 [PersistenceMode(PersistenceMode.EncodedInnerDefaultProperty)]
 318 #if NET_2_0
 319                 [Localizable (true)]
 320                 [Editor ("System.ComponentModel.Design.MultilineStringEditor," + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 321 #endif
 322                 [WebSysDescription ("")]
 323                 [WebCategory ("Appearance")]
 324                 public virtual string Text {
 325                         get {
 326                                 return ViewState.GetString ("Text", "");
 327                         }
 328                         set {
 329                                 ViewState ["Text"] = value;
 330                                 if (TextMode == TextBoxMode.Password)
 331                                         ViewState.SetItemDirty ("Text", false);
 332                         }
 333                 }
 334
 335                 [DefaultValue(TextBoxMode.SingleLine)]
 336 #if NET_2_0
 337                 [Themeable (false)]
 338 #endif
 339                 [WebSysDescription ("")]
 340                 [WebCategory ("Behavior")]
 341                 public virtual TextBoxMode TextMode {
 342                         get {
 343                                 return (TextBoxMode) ViewState.GetInt ("TextMode", (int) TextBoxMode.SingleLine);
 344                         }
 345                         set {
 346                                 ViewState ["TextMode"] = (int) value;
 347                         }
 348                 }
 349
 350 #if NET_2_0
 351                 [Themeable (false)]
 352                 [DefaultValue ("")]
 353                 public virtual string ValidationGroup
 354                 {
 355                         get {
 356                                 return ViewState.GetString ("ValidationGroup", "");
 357                         }
 358                         set {
 359                                 ViewState ["ValidationGroup"] = value;
 360                         }
 361                 }
 362 #endif
 363
 364                 [DefaultValue(true)]
 365                 [WebSysDescription ("")]
 366                 [WebCategory ("Layout")]
 367                 public virtual bool Wrap {
 368                         get {
 369                                 return ViewState.GetBool ("Wrap", true);
 370                         }
 371                         set {
 372                                 ViewState ["Wrap"] = value;
 373                         }
 374                 }
 375
 376                 protected virtual void OnTextChanged (EventArgs e)
 377                 {
 378                         EventHandler h = (EventHandler) Events [TextChangedEvent];
 379                         if (h != null)
 380                                 h (this, e);
 381                 }
 382
 383                 static readonly object TextChangedEvent = new object ();
 384
 385                 [WebSysDescription ("")]
 386                 [WebCategory ("Action")]
 387                 public event EventHandler TextChanged {
 388                         add { Events.AddHandler (TextChangedEvent, value); }
 389                         remove { Events.RemoveHandler (TextChangedEvent, value); }
 390                 }
 391         }
 392 }