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

   1
   2 //
   3 // Permission is hereby granted, free of charge, to any person obtaining
   4 // a copy of this software and associated documentation files (the
   5 // "Software"), to deal in the Software without restriction, including
   6 // without limitation the rights to use, copy, modify, merge, publish,
   7 // distribute, sublicense, and/or sell copies of the Software, and to
   8 // permit persons to whom the Software is furnished to do so, subject to
   9 // the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be
  12 // included in all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22 /**\r
  23  * Namespace: System.Web.UI.WebControls\r
  24  * Class:     EditCommandColumn\r
  25  * \r
  26  * Author:  Gaurav Vaish\r
  27  * Maintainer: gvaish@iitk.ac.in\r
  28  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
  29  * Implementation: yes\r
  30  * Status:  100%\r
  31  * \r
  32  * (C) Gaurav Vaish (2002)\r
  33  */\r
  34 \r
  35 using System;\r
  36 using System.Web;\r
  37 using System.Web.UI;\r
  38 \r
  39 namespace System.Web.UI.WebControls\r
  40 {\r
  41         public class EditCommandColumn : DataGridColumn\r
  42         {\r
  43                 public EditCommandColumn(): base()\r
  44                 {\r
  45                 }\r
  46                 \r
  47                 public virtual ButtonColumnType ButtonType\r
  48                 {\r
  49                         get\r
  50                         {\r
  51                                 object o = ViewState["ButtonType"];\r
  52                                 if(o != null)\r
  53                                 {\r
  54                                         return (ButtonColumnType)o;\r
  55                                 }\r
  56                                 return ButtonColumnType.LinkButton;\r
  57                         }\r
  58                         set\r
  59                         {\r
  60                                 if(!Enum.IsDefined(typeof(ButtonColumnType), value))\r
  61                                 {\r
  62                                         throw new ArgumentException();\r
  63                                 }\r
  64                                 ViewState["ButtonType"] = value;\r
  65                                 OnColumnChanged();\r
  66                         }\r
  67                 }\r
  68 \r
  69                 public virtual string CancelText\r
  70                 {\r
  71                         get\r
  72                         {\r
  73                                 object o = ViewState["CancelText"];\r
  74                                 if(o != null)\r
  75                                 {\r
  76                                         return (string)o;\r
  77                                 }\r
  78                                 return String.Empty;\r
  79                         }\r
  80                         set\r
  81                         {\r
  82                                 ViewState["CancelText"] = value;\r
  83                                 OnColumnChanged();\r
  84                         }\r
  85                 }\r
  86 \r
  87                 public virtual string EditText\r
  88                 {\r
  89                         get\r
  90                         {\r
  91                                 object o = ViewState["EditText"];\r
  92                                 if(o != null)\r
  93                                 {\r
  94                                         return (string)o;\r
  95                                 }\r
  96                                 return String.Empty;\r
  97                         }\r
  98                         set\r
  99                         {\r
 100                                 ViewState["EditText"] = value;\r
 101                                 OnColumnChanged();\r
 102                         }\r
 103                 }\r
 104 \r
 105                 public virtual string UpdateText\r
 106                 {\r
 107                         get\r
 108                         {\r
 109                                 object o = ViewState["UpdateText"];\r
 110                                 if(o != null)\r
 111                                 {\r
 112                                         return (string)o;\r
 113                                 }\r
 114                                 return String.Empty;\r
 115                         }\r
 116                         set\r
 117                         {\r
 118                                 ViewState["UpdateText"] = value;\r
 119                                 OnColumnChanged();\r
 120                         }\r
 121                 }\r
 122                 \r
 123                 public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType)\r
 124                 {\r
 125                         base.InitializeCell(cell, columnIndex, itemType);\r
 126
 127                         if (itemType == ListItemType.Header || itemType == ListItemType.Footer)
 128                                 return;
 129
 130                         if (itemType == ListItemType.EditItem) {
 131                                 cell.Controls.Add (MakeButton ("Update", UpdateText));
 132                                 cell.Controls.Add (new LiteralControl ("&nbsp;"));
 133                                 cell.Controls.Add (MakeButton ("Cancel", CancelText));
 134                         } else {
 135                                 cell.Controls.Add (MakeButton ("Edit", EditText));
 136                         }\r
 137                 }
 138
 139                 Control MakeButton (string commandName, string text)
 140                 {
 141                         if (ButtonType == ButtonColumnType.LinkButton) {
 142                                 DataGridLinkButton ret = new DataGridLinkButton ();
 143                                 ret.CommandName = commandName;
 144                                 ret.Text = text;
 145                                 return ret;
 146                         } else {
 147                                 Button ret = new Button ();
 148                                 ret.CommandName = commandName;
 149                                 ret.Text = text;
 150                                 return ret;
 151                         }
 152                 }\r
 153         }\r
 154 }\r