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

   1 //
   2 // System.Web.UI.WebControls.RadioButtonList.cs
   3 //
   4 // Authors:
   5 //    Jordi Mas i Hernandez (jordi@ximian.com)
   6 //
   7 // (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 //
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 //
  31
  32 using System.Collections;
  33 using System.ComponentModel;
  34 using System.Collections.Specialized;
  35 using System.Security.Permissions;
  36
  37 namespace System.Web.UI.WebControls {
  38
  39         // CAS
  40         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  41         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  42         // attributes
  43         [ValidationProperty ("SelectedItem")]
  44 #if NET_2_0
  45         [SupportsEventValidation]
  46 #endif
  47         public class RadioButtonList : ListControl, IRepeatInfoUser,
  48                 INamingContainer, IPostBackDataHandler {
  49 #if !NET_2_0
  50                 bool need_raise;
  51 #endif
  52                 short tabIndex = 0;
  53
  54                 public RadioButtonList ()
  55                 {
  56
  57                 }
  58
  59 #if ONLY_1_1
  60                 [Bindable (true)]
  61 #endif
  62                 [DefaultValue (-1)]
  63                 [WebSysDescription ("")]
  64                 [WebCategory ("Layout")]
  65                 public virtual int CellPadding {
  66                         get {
  67                                 if (ControlStyleCreated == false)
  68                                         return -1; // default value
  69
  70                                 return ((TableStyle) ControlStyle).CellPadding;
  71                         }
  72
  73                         set {
  74                                 ((TableStyle) ControlStyle).CellPadding = value;
  75                         }
  76                 }
  77
  78 #if ONLY_1_1
  79                 [Bindable (true)]
  80 #endif
  81                 [DefaultValue (-1)]
  82                 [WebSysDescription ("")]
  83                 [WebCategory ("Layout")]
  84                 public virtual int CellSpacing {
  85                         get {
  86                                 if (ControlStyleCreated == false)
  87                                         return -1; // default value
  88
  89                                 return ((TableStyle) ControlStyle).CellSpacing;
  90                         }
  91
  92                         set {
  93                                 ((TableStyle) ControlStyle).CellSpacing = value;
  94                         }
  95                 }
  96
  97 #if ONLY_1_1
  98                 [Bindable (true)]
  99 #endif
 100                 [DefaultValue (0)]
 101                 [WebSysDescription ("")]
 102                 [WebCategory ("Layout")]
 103                 public virtual int RepeatColumns  {
 104                         get {
 105                                 return ViewState.GetInt ("RepeatColumns", 0);
 106                         }
 107
 108                         set {
 109                                 if (value < 0)
 110                                         throw new ArgumentOutOfRangeException ("The number of columns is set to a negative value.");
 111
 112                                 ViewState ["RepeatColumns"] = value;
 113                         }
 114                 }
 115
 116 #if ONLY_1_1
 117                 [Bindable (true)]
 118 #endif
 119                 [DefaultValue (RepeatDirection.Vertical)]
 120                 [WebSysDescription ("")]
 121                 [WebCategory ("Layout")]
 122                 public virtual RepeatDirection RepeatDirection {
 123                         get {
 124                                 return (RepeatDirection) ViewState.GetInt ("RepeatDirection", (int) RepeatDirection.Vertical);
 125                         }
 126
 127                         set {
 128                                 if (value != RepeatDirection.Horizontal && value != RepeatDirection.Vertical)
 129                                         throw new ArgumentOutOfRangeException ("he display direction of the list is not one of the RepeatDirection values.");
 130
 131                                 ViewState ["RepeatDirection"] = value;
 132                         }
 133                 }
 134
 135 #if ONLY_1_1
 136                 [Bindable (true)]
 137 #endif
 138                 [DefaultValue (RepeatLayout.Table)]
 139                 [WebSysDescription ("")]
 140                 [WebCategory ("Layout")]
 141                 public virtual RepeatLayout RepeatLayout {
 142                         get {
 143                                 return (RepeatLayout) ViewState.GetInt ("RepeatLayout", (int) RepeatLayout.Table);
 144                         }
 145
 146                         set {
 147                                 if (value != RepeatLayout.Flow && value != RepeatLayout.Table)
 148                                         throw new ArgumentOutOfRangeException ("The radio buttons layout is not one of the RepeatLayout values.");
 149
 150                                 ViewState ["RepeatLayout"] = value;
 151                         }
 152                 }
 153
 154 #if ONLY_1_1
 155                 [Bindable (true)]
 156 #endif
 157                 [DefaultValue (TextAlign.Right)]
 158                 [WebSysDescription ("")]
 159                 [WebCategory ("Appearance")]
 160                 public virtual TextAlign TextAlign {
 161                         get {
 162                                 return (TextAlign )ViewState.GetInt ("TextAlign", (int) TextAlign.Right);
 163                         }
 164
 165                         set {
 166                                 if (value != TextAlign.Left && value != TextAlign.Right)
 167                                         throw new ArgumentOutOfRangeException ("The label text alignment associated with the radio buttons is not one of the TextAlign values.");
 168
 169                                 ViewState ["TextAlign"] = value;
 170                         }
 171                 }
 172
 173                 // Interface properties
 174
 175 #if NET_2_0
 176                 [MonoTODO ("Not implemented")]
 177                 protected virtual bool HasFooter
 178                 {
 179                         get {
 180                                 throw new NotImplementedException ();
 181                         }
 182                 }
 183
 184                 [MonoTODO ("Not implemented")]
 185                 protected virtual bool HasHeader
 186                 {
 187                         get {
 188                                 throw new NotImplementedException ();
 189                         }
 190                 }
 191
 192                 [MonoTODO]
 193                 protected virtual bool HasSeparators
 194                 {
 195                         get {
 196                                 throw new NotImplementedException ();
 197                         }
 198                 }
 199
 200                 [MonoTODO ("Not implemented")]
 201                 protected virtual int RepeatedItemCount
 202                 {
 203                         get {
 204                                 throw new NotImplementedException ();
 205                         }
 206                 }
 207 #endif
 208
 209                 bool IRepeatInfoUser.HasFooter {
 210                         get { return false; }
 211                 }
 212
 213                 bool IRepeatInfoUser.HasHeader {
 214                         get { return false; }
 215                 }
 216
 217                 bool IRepeatInfoUser.HasSeparators {
 218                         get { return false; }
 219                 }
 220
 221                 int IRepeatInfoUser.RepeatedItemCount {
 222                         get { return Items.Count; }
 223                 }
 224
 225                 protected override Style CreateControlStyle ()
 226                 {
 227                         return new TableStyle (ViewState);
 228                 }
 229
 230 #if NET_2_0
 231                 [MonoTODO ("Not implemented")]
 232                 protected override Control FindControl (string id, int pathOffset)
 233                 {
 234                         throw new NotImplementedException ();
 235                 }
 236 #endif
 237
 238 #if NET_2_0
 239                 protected virtual
 240 #endif
 241                 Style GetItemStyle (ListItemType itemType, int repeatIndex)
 242                 {
 243                         return null;
 244                 }
 245
 246 #if NET_2_0
 247                 protected virtual
 248 #endif
 249                 void RenderItem (ListItemType itemType, int repeatIndex, RepeatInfo repeatInfo, HtmlTextWriter writer)
 250                 {
 251                         RadioButton radio = new RadioButton ();
 252                         radio.Text = Items [repeatIndex].Text;
 253                         radio.ID = ClientID + "_"  + repeatIndex;
 254                         radio.TextAlign = TextAlign;
 255                         radio.GroupName = UniqueID;
 256                         radio.Page = Page;
 257                         radio.Checked = Items [repeatIndex].Selected;
 258                         radio.ValueAttribute = Items [repeatIndex].Value;
 259                         radio.AutoPostBack = AutoPostBack;
 260                         radio.Enabled = Enabled;
 261                         radio.TabIndex = tabIndex;
 262 #if NET_2_0
 263                         radio.ValidationGroup = ValidationGroup;
 264                         radio.CausesValidation = CausesValidation;
 265 #endif
 266                         radio.RenderControl (writer);
 267                 }
 268 #if NET_2_0
 269                 protected virtual
 270 #endif
 271                 bool LoadPostData (string postDataKey, NameValueCollection postCollection)
 272                 {
 273                         string val = postCollection [postDataKey];
 274                         ListItemCollection items = Items;
 275                         int end = items.Count;
 276                         int selected = SelectedIndex;
 277                         for (int i = 0; i < end; i++) {
 278                                 ListItem item = items [i];
 279                                 if (item == null || val != item.Value)
 280                                         continue;
 281
 282                                 if (i != selected) {
 283                                         SelectedIndex = i;
 284 #if NET_2_0
 285                                         return true;
 286 #else
 287                                         need_raise = true;
 288 #endif
 289                                 }
 290 #if !NET_2_0
 291                                 return true;
 292 #endif
 293                         }
 294
 295                         return false;
 296                 }
 297
 298 #if NET_2_0
 299                 protected virtual
 300 #endif
 301                 void RaisePostDataChangedEvent ()
 302                 {
 303 #if NET_2_0
 304                         if (CausesValidation)
 305                                 Page.Validate (ValidationGroup);
 306 #endif
 307
 308 #if !NET_2_0
 309                         if (need_raise)
 310 #endif
 311                                 OnSelectedIndexChanged (EventArgs.Empty);
 312                 }
 313
 314                 bool IPostBackDataHandler.LoadPostData (string postDataKey, NameValueCollection postCollection)
 315                 {
 316                         return LoadPostData (postDataKey, postCollection);
 317                 }
 318
 319                 void IPostBackDataHandler.RaisePostDataChangedEvent ()
 320                 {
 321                         RaisePostDataChangedEvent ();
 322                 }
 323
 324                 Style IRepeatInfoUser.GetItemStyle (ListItemType itemType,  int repeatIndex)
 325                 {
 326                         return GetItemStyle (itemType, repeatIndex);
 327                 }
 328
 329                 void IRepeatInfoUser.RenderItem (ListItemType itemType, int repeatIndex, RepeatInfo repeatInfo, HtmlTextWriter writer)
 330                 {
 331                         RenderItem (itemType, repeatIndex, repeatInfo, writer);
 332                 }
 333
 334 #if NET_2_0
 335                 protected internal
 336 #else
 337                 protected
 338 #endif
 339                 override void Render (HtmlTextWriter writer)
 340                 {
 341 #if NET_2_0
 342                         if (Page != null)
 343                                 Page.ClientScript.RegisterForEventValidation (this.UniqueID);
 344
 345                         if (Items.Count == 0)
 346                                 return;
 347 #endif
 348                         RepeatInfo repeat = new RepeatInfo ();
 349                         repeat.RepeatColumns = RepeatColumns;
 350                         repeat.RepeatDirection = RepeatDirection;
 351                         repeat.RepeatLayout = RepeatLayout;
 352
 353                         tabIndex = TabIndex;
 354                         TabIndex = 0;
 355
 356                         repeat.RenderRepeater (writer, this, ControlStyle, this);
 357
 358                         TabIndex = tabIndex;
 359                 }
 360         }
 361
 362 }
 363
 364