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

   1 //
   2 // System.Web.UI.WebControls.TableCell.cs
   3 //
   4 // Authors:
   5 //   Gaurav Vaish (gvaish@iitk.ac.in)
   6 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //
   8 // (C) Gaurav Vaish (2002)
   9 // (C) 2003 Andreas Nahr
  10 //\r
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32 \r
  33 using System;\r
  34 using System.Globalization;\r
  35 using System.Web;\r
  36 using System.Web.UI;\r
  37 using System.ComponentModel;\r
  38 \r
  39 namespace System.Web.UI.WebControls\r
  40 {\r
  41         [DefaultProperty("Text")]\r
  42         [ToolboxItem(false)]\r
  43         [ControlBuilder(typeof(TableCellControlBuilder))]\r
  44         [ParseChildren(false)]\r
  45         [PersistChildren(true)]\r
  46         public class TableCell: WebControl\r
  47         {\r
  48                 public TableCell () : base (HtmlTextWriterTag.Td)\r
  49                 {\r
  50                         PreventAutoID ();\r
  51                 }\r
  52 \r
  53                 internal TableCell (HtmlTextWriterTag tag) : base (tag)\r
  54                 {\r
  55                         PreventAutoID ();\r
  56                 }\r
  57
  58                 [DefaultValue (0), Bindable (true), WebCategory ("Appearance")]
  59                 [WebSysDescription ("The number of columns spanned by this cell.")]\r
  60                 public virtual int ColumnSpan\r
  61                 {\r
  62                         get {\r
  63                                 object o = ViewState ["ColumnSpan"];\r
  64                                 return (o == null) ? 0 : (int) o;\r
  65                         }\r
  66 \r
  67                         set {
  68                                 if (value < 0)
  69                                         throw new ArgumentOutOfRangeException ("value", "ColumnSpan value has to be >= 0.");
  70                                 ViewState ["ColumnSpan"] = value;
  71                         }\r
  72                 }\r
  73
  74                 [DefaultValue (0), Bindable (true), WebCategory ("Layout")]
  75                 [WebSysDescription ("The number of rows spanned by this cell.")]\r
  76                 public virtual int RowSpan\r
  77                 {\r
  78                         get {\r
  79                                 object o = ViewState ["RowSpan"];\r
  80                                 return (o == null) ? 0 : (int) o;\r
  81                         }\r
  82 \r
  83                         set {
  84                                 if (value < 0)
  85                                         throw new ArgumentOutOfRangeException ("value", "RowSpan value has to be >= 0.");
  86                                 ViewState ["RowSpan"] = value;
  87                         }\r
  88                 }\r
  89
  90                 [DefaultValue (""), Bindable (true), WebCategory ("Appearance")]
  91                 [WebSysDescription ("The text that is shown in this cell.")]\r
  92                 public virtual string Text\r
  93                 {\r
  94                         get {\r
  95                                 object o = ViewState ["Text"];\r
  96                                 return (o == null) ? String.Empty : (string) o;\r
  97                         }\r
  98 \r
  99                         set {
 100                                 if (HasControls ())
 101                                         Controls.Clear ();
 102                                 ViewState ["Text"] = value;
 103                         }
 104                 }\r
 105
 106                 [DefaultValue (typeof (HorizontalAlign), "NotSet"), Bindable (true), WebCategory ("Layout")]
 107                 [WebSysDescription ("The horizontal alignment for this cell.")]\r
 108                 public virtual HorizontalAlign HorizontalAlign\r
 109                 {\r
 110                         get {\r
 111                                 if (ControlStyleCreated)\r
 112                                         return ((TableItemStyle) ControlStyle).HorizontalAlign;\r
 113                                 return HorizontalAlign.NotSet;\r
 114                         }\r
 115                         set { ((TableItemStyle) ControlStyle).HorizontalAlign = value; }\r
 116                 }\r
 117
 118                 [DefaultValue (typeof (VerticalAlign), "NotSet"), Bindable (true), WebCategory ("Layout")]
 119                 [WebSysDescription ("The horizontal alignment for this cell.")]\r
 120                 public virtual VerticalAlign VerticalAlign\r
 121                 {\r
 122                         get {\r
 123                                 if (ControlStyleCreated)\r
 124                                         return ((TableItemStyle) ControlStyle).VerticalAlign;\r
 125                                 return VerticalAlign.NotSet;\r
 126                         }\r
 127 \r
 128                         set { ((TableItemStyle) ControlStyle).VerticalAlign = value; }\r
 129                 }\r
 130
 131                 [DefaultValue (true), Bindable (true), WebCategory ("Layout")]
 132                 [WebSysDescription ("Determines if the text in the cell should be wraped at line-end.")]\r
 133                 public virtual bool Wrap\r
 134                 {\r
 135                         get {\r
 136                                 if (ControlStyleCreated)\r
 137                                         return ((TableItemStyle) ControlStyle).Wrap;\r
 138                                 return true;\r
 139                         }\r
 140                         set { ((TableItemStyle) ControlStyle).Wrap = value; }\r
 141                 }\r
 142 \r
 143                 protected override void AddAttributesToRender (HtmlTextWriter writer)\r
 144                 {\r
 145                         base.AddAttributesToRender (writer);\r
 146                         if (ColumnSpan > 0)\r
 147                                 writer.AddAttribute (HtmlTextWriterAttribute.Colspan,\r
 148                                                      ColumnSpan.ToString (NumberFormatInfo.InvariantInfo));\r
 149 \r
 150                         if (RowSpan > 0)\r
 151                                 writer.AddAttribute (HtmlTextWriterAttribute.Rowspan,\r
 152                                                      RowSpan.ToString (NumberFormatInfo.InvariantInfo));\r
 153                 }\r
 154 \r
 155                 protected override void AddParsedSubObject (object obj)\r
 156                 {\r
 157                         if (HasControls ()){\r
 158                                 base.AddParsedSubObject (obj);\r
 159                                 return;\r
 160                         }\r
 161 \r
 162                         if (obj is LiteralControl){\r
 163                                 Text = ((LiteralControl) obj).Text;\r
 164                                 return;\r
 165                         }\r
 166 \r
 167                         string text = Text;\r
 168                         if (text.Length > 0){\r
 169                                 Text = String.Empty;\r
 170                                 base.AddParsedSubObject (new LiteralControl (text));\r
 171                         }\r
 172 \r
 173                         base.AddParsedSubObject (obj);\r
 174                 }\r
 175 \r
 176                 protected override Style CreateControlStyle ()\r
 177                 {\r
 178                         return new TableItemStyle (ViewState);\r
 179                 }\r
 180 \r
 181                 protected override void RenderContents (HtmlTextWriter writer)\r
 182                 {\r
 183                         if (HasControls ())\r
 184                                 base.RenderContents (writer);\r
 185                         else\r
 186                                 writer.Write (Text);\r
 187                 }\r
 188         }\r
 189 }\r
 190 \r