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

   1 /**\r
   2  * Namespace: System.Web.UI.WebControls\r
   3  * Class:     EditCommandColumn\r
   4  * \r
   5  * Author:  Gaurav Vaish\r
   6  * Maintainer: gvaish@iitk.ac.in\r
   7  * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>\r
   8  * Implementation: yes\r
   9  * Status:  100%\r
  10  * \r
  11  * (C) Gaurav Vaish (2002)\r
  12  */\r
  13 \r
  14 using System;\r
  15 using System.Web;\r
  16 using System.Web.UI;\r
  17 \r
  18 namespace System.Web.UI.WebControls\r
  19 {\r
  20         public class EditCommandColumn : DataGridColumn\r
  21         {\r
  22                 public EditCommandColumn(): base()\r
  23                 {\r
  24                 }\r
  25                 \r
  26                 public virtual ButtonColumnType ButtonType\r
  27                 {\r
  28                         get\r
  29                         {\r
  30                                 object o = ViewState["ButtonType"];\r
  31                                 if(o != null)\r
  32                                 {\r
  33                                         return (ButtonColumnType)o;\r
  34                                 }\r
  35                                 return ButtonColumnType.LinkButton;\r
  36                         }\r
  37                         set\r
  38                         {\r
  39                                 if(!Enum.IsDefined(typeof(ButtonColumnType), value))\r
  40                                 {\r
  41                                         throw new ArgumentException();\r
  42                                 }\r
  43                                 ViewState["ButtonType"] = value;\r
  44                                 OnColumnChanged();\r
  45                         }\r
  46                 }\r
  47 \r
  48                 public virtual string CancelText\r
  49                 {\r
  50                         get\r
  51                         {\r
  52                                 object o = ViewState["CancelText"];\r
  53                                 if(o != null)\r
  54                                 {\r
  55                                         return (string)o;\r
  56                                 }\r
  57                                 return String.Empty;\r
  58                         }\r
  59                         set\r
  60                         {\r
  61                                 ViewState["CancelText"] = value;\r
  62                                 OnColumnChanged();\r
  63                         }\r
  64                 }\r
  65 \r
  66                 public virtual string EditText\r
  67                 {\r
  68                         get\r
  69                         {\r
  70                                 object o = ViewState["EditText"];\r
  71                                 if(o != null)\r
  72                                 {\r
  73                                         return (string)o;\r
  74                                 }\r
  75                                 return String.Empty;\r
  76                         }\r
  77                         set\r
  78                         {\r
  79                                 ViewState["EditText"] = value;\r
  80                                 OnColumnChanged();\r
  81                         }\r
  82                 }\r
  83 \r
  84                 public virtual string UpdateText\r
  85                 {\r
  86                         get\r
  87                         {\r
  88                                 object o = ViewState["UpdateText"];\r
  89                                 if(o != null)\r
  90                                 {\r
  91                                         return (string)o;\r
  92                                 }\r
  93                                 return String.Empty;\r
  94                         }\r
  95                         set\r
  96                         {\r
  97                                 ViewState["UpdateText"] = value;\r
  98                                 OnColumnChanged();\r
  99                         }\r
 100                 }\r
 101                 \r
 102                 public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType)\r
 103                 {\r
 104                         base.InitializeCell(cell, columnIndex, itemType);\r
 105
 106                         if (itemType == ListItemType.Header || itemType == ListItemType.Footer)
 107                                 return;
 108
 109                         if (itemType == ListItemType.EditItem) {
 110                                 cell.Controls.Add (MakeButton ("Update", UpdateText));
 111                                 cell.Controls.Add (new LiteralControl ("&nbsp;"));
 112                                 cell.Controls.Add (MakeButton ("Cancel", CancelText));
 113                         } else {
 114                                 cell.Controls.Add (MakeButton ("Edit", EditText));
 115                         }\r
 116                 }
 117
 118                 Control MakeButton (string commandName, string text)
 119                 {
 120                         if (ButtonType == ButtonColumnType.LinkButton) {
 121                                 DataGridLinkButton ret = new DataGridLinkButton ();
 122                                 ret.CommandName = commandName;
 123                                 ret.Text = text;
 124                                 return ret;
 125                         } else {
 126                                 Button ret = new Button ();
 127                                 ret.CommandName = commandName;
 128                                 ret.Text = text;
 129                                 return ret;
 130                         }
 131                 }\r
 132         }\r
 133 }\r