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

   1 //
   2 // System.Web.UI.WebControls.Table.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.Security.Permissions;
  31
  32 namespace System.Web.UI.WebControls {
  33
  34         // CAS
  35         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  36         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  37         // attributes
  38         [DefaultProperty ("Rows")]
  39         [Designer ("System.Web.UI.Design.WebControls.TableDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  40         [ParseChildren (true, "Rows")]
  41         [SupportsEventValidation]
  42         public class Table : WebControl, IPostBackEventHandler
  43         {
  44                 TableRowCollection rows;
  45                 bool generateTableSections;
  46
  47                 public Table ()
  48                         : base (HtmlTextWriterTag.Table)
  49                 {
  50                 }
  51
  52                 internal bool GenerateTableSections {
  53                         get { return generateTableSections; }
  54                         set { generateTableSections = value; }
  55                 }
  56
  57                 [Editor ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
  58                 [UrlProperty]
  59                 [DefaultValue ("")]
  60                 [WebSysDescription ("")]
  61                 [WebCategory ("Appearance")]
  62                 public virtual string BackImageUrl {
  63                         get {
  64                                 if (!ControlStyleCreated)
  65                                         return String.Empty; // default value
  66                                 return TableStyle.BackImageUrl;
  67                         }
  68                         set { TableStyle.BackImageUrl = value; }
  69                 }
  70
  71                 // note: it seems that Caption and CaptionAlign appeared in 1.1 SP1
  72
  73                 [DefaultValue ("")]
  74                 [Localizable (true)]
  75                 [WebSysDescription ("")]
  76                 [WebCategory ("Accessibility")]
  77                 public virtual string Caption {
  78                         get {
  79                                 object o = ViewState ["Caption"];
  80                                 return (o == null) ? String.Empty : (string) o;
  81                         }
  82                         set {
  83                                 if (value == null)
  84                                         ViewState.Remove ("Caption");
  85                                 else
  86                                         ViewState ["Caption"] = value;
  87                         }
  88                 }
  89
  90                 [DefaultValue (TableCaptionAlign.NotSet)]
  91                 [WebCategory ("Accessibility")]
  92                 public virtual TableCaptionAlign CaptionAlign {
  93                         get {
  94                                 object o = ViewState ["CaptionAlign"];
  95                                 return (o == null) ? TableCaptionAlign.NotSet : (TableCaptionAlign) o;
  96                         }
  97                         set {
  98                                 if ((value < TableCaptionAlign.NotSet) || (value > TableCaptionAlign.Right)) {
  99                                         throw new ArgumentOutOfRangeException (Locale.GetText ("Invalid TableCaptionAlign value."));
 100                                 }
 101                                 ViewState ["CaptionAlign"] = value;
 102                         }
 103                 }
 104
 105                 [DefaultValue (-1)]
 106                 [WebSysDescription ("")]
 107                 [WebCategory ("Appearance")]
 108                 public virtual int CellPadding {
 109                         get {
 110                                 if (!ControlStyleCreated)
 111                                         return -1; // default value
 112                                 return TableStyle.CellPadding;
 113                         }
 114                         set { TableStyle.CellPadding = value; }
 115                 }
 116
 117                 [DefaultValue (-1)]
 118                 [WebSysDescription ("")]
 119                 [WebCategory ("Appearance")]
 120                 public virtual int CellSpacing {
 121                         get {
 122                                 if (!ControlStyleCreated)
 123                                         return -1; // default value
 124                                 return TableStyle.CellSpacing;
 125                         }
 126                         set { TableStyle.CellSpacing = value; }
 127                 }
 128
 129                 [DefaultValue (GridLines.None)]
 130                 [WebSysDescription ("")]
 131                 [WebCategory ("Appearance")]
 132                 public virtual GridLines GridLines {
 133                         get {
 134                                 if (!ControlStyleCreated)
 135                                         return GridLines.None; // default value
 136                                 return TableStyle.GridLines;
 137                         }
 138                         set { TableStyle.GridLines = value; }
 139                 }
 140
 141                 [DefaultValue (HorizontalAlign.NotSet)]
 142                 [WebSysDescription ("")]
 143                 [WebCategory ("Layout")]
 144                 public virtual HorizontalAlign HorizontalAlign {
 145                         get {
 146                                 if (!ControlStyleCreated)
 147                                         return HorizontalAlign.NotSet; // default value
 148                                 return TableStyle.HorizontalAlign;
 149                         }
 150                         set { TableStyle.HorizontalAlign = value; }
 151                 }
 152
 153                 [MergableProperty (false)]
 154                 [PersistenceMode (PersistenceMode.InnerDefaultProperty)]
 155                 [WebSysDescription ("")]
 156                 public virtual TableRowCollection Rows {
 157                         get {
 158                                 if (rows == null)
 159                                         rows = new TableRowCollection (this);
 160                                 return rows;
 161                         }
 162                 }
 163
 164                 private TableStyle TableStyle {
 165                         get { return (ControlStyle as TableStyle); }
 166                 }
 167                 public override bool SupportsDisabledAttribute {
 168                         get { return RenderingCompatibilityLessThan40; }
 169                 }
 170                 protected override void AddAttributesToRender (HtmlTextWriter writer)
 171                 {
 172                         base.AddAttributesToRender (writer);
 173                 }
 174
 175                 protected override ControlCollection CreateControlCollection ()
 176                 {
 177                         return new RowControlCollection (this);
 178                 }
 179
 180                 protected override Style CreateControlStyle ()
 181                 {
 182                         return new TableStyle (ViewState);
 183                 }
 184
 185                 protected internal
 186                 override void RenderContents (HtmlTextWriter writer)
 187                 {
 188                         TableRowSection currentTableSection = TableRowSection.TableHeader;
 189                         TableRowSection rowSection;
 190                         bool sectionStarted = false;
 191
 192                         if (Rows.Count > 0) {
 193                                 foreach (TableRow row in Rows) {
 194                                         if (generateTableSections) {
 195                                                 rowSection = row.TableSection;
 196                                                 if (rowSection < currentTableSection)
 197                                                         throw new HttpException ("The table " + ID + " must contain row sections in order of header, body, then footer.");
 198
 199                                                 if (currentTableSection != rowSection) {
 200                                                         if (sectionStarted) {
 201                                                                 writer.RenderEndTag ();
 202                                                                 sectionStarted = false;
 203                                                         }
 204
 205                                                         currentTableSection = rowSection;
 206                                                 }
 207
 208                                                 if (!sectionStarted) {
 209                                                         switch (rowSection) {
 210                                                                 case TableRowSection.TableHeader:
 211                                                                         writer.RenderBeginTag (HtmlTextWriterTag.Thead);
 212                                                                         break;
 213
 214                                                                 case TableRowSection.TableBody:
 215                                                                         writer.RenderBeginTag (HtmlTextWriterTag.Tbody);
 216                                                                         break;
 217
 218                                                                 case TableRowSection.TableFooter:
 219                                                                         writer.RenderBeginTag (HtmlTextWriterTag.Tfoot);
 220                                                                         break;
 221                                                         }
 222                                                         sectionStarted = true;
 223                                                 }
 224                                         }
 225                                         if (row != null)
 226                                                 row.RenderControl (writer);
 227                                 }
 228
 229                                 if (sectionStarted)
 230                                         writer.RenderEndTag ();
 231                         }
 232                 }
 233
 234
 235                 // new in Fx 1.1 SP1 (to support Caption and CaptionAlign)
 236
 237                 public override void RenderBeginTag (HtmlTextWriter writer)
 238                 {
 239                         base.RenderBeginTag (writer);
 240
 241                         string s = Caption;
 242                         if (s.Length > 0) {
 243                                 TableCaptionAlign tca = CaptionAlign;
 244                                 if (tca != TableCaptionAlign.NotSet)
 245                                         writer.AddAttribute (HtmlTextWriterAttribute.Align, tca.ToString ());
 246
 247                                 writer.RenderBeginTag (HtmlTextWriterTag.Caption);
 248                                 writer.Write (s);
 249                                 writer.RenderEndTag ();
 250                         }
 251 // #if !NET_4_0
 252 //                      else if (HasControls ()) {
 253 //                              writer.Indent++;
 254 //                      }
 255 // #endif
 256                 }
 257
 258                 void IPostBackEventHandler.RaisePostBackEvent (string argument)
 259                 {
 260                         RaisePostBackEvent (argument);
 261                 }
 262
 263                 protected virtual void RaisePostBackEvent (string argument)
 264                 {
 265                         ValidateEvent (UniqueID, argument);
 266                 }
 267
 268                 // inner class
 269                 protected class RowControlCollection : ControlCollection {
 270
 271                         internal RowControlCollection (Table owner)
 272                                 : base (owner)
 273                         {
 274                         }
 275
 276
 277                         public override void Add (Control child)
 278                         {
 279                                 if (child == null)
 280                                         throw new NullReferenceException ("null");
 281                                 if (!(child is TableRow))
 282                                         throw new ArgumentException ("child", Locale.GetText ("Must be an TableRow instance."));
 283
 284                                 base.Add (child);
 285                         }
 286
 287                         public override void AddAt (int index, Control child)
 288                         {
 289                                 if (child == null)
 290                                         throw new NullReferenceException ("null");
 291                                 if (!(child is TableRow))
 292                                         throw new ArgumentException ("child", Locale.GetText ("Must be an TableRow instance."));
 293
 294                                 base.AddAt (index, child);
 295                         }
 296                 }
 297         }
 298 }