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

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Authors:
  23 //      Peter Bartok    (pbartok@novell.com)
  24 //
  25 //
  26
  27 using System;
  28 using System.Web.UI;
  29
  30 namespace System.Web.UI.WebControls {
  31         public class EditCommandColumn : DataGridColumn {
  32                 #region Public Constructors
  33                 public EditCommandColumn() {
  34                 }
  35                 #endregion      // Public Constructors
  36
  37                 #region Public Instance Properties
  38                 public virtual ButtonColumnType ButtonType {
  39                         get {
  40                                 object obj;
  41
  42                                 obj = ViewState["ButtonType"];
  43                                 if (obj != null) {
  44                                         return (ButtonColumnType)obj;
  45                                 }
  46                                 return ButtonColumnType.LinkButton;
  47                         }
  48
  49                         set {
  50                                 ViewState["ButtonType"] = value;
  51                         }
  52                 }
  53
  54                 public virtual string CancelText {
  55                         get {
  56                                 return ViewState.GetString("CancelText", string.Empty);
  57                         }
  58
  59                         set {
  60                                 ViewState["CancelText"] = value;
  61                         }
  62                 }
  63
  64                 public virtual string EditText {
  65                         get {
  66                                 return ViewState.GetString("EditText", string.Empty);
  67                         }
  68
  69                         set {
  70                                 ViewState["EditText"] = value;
  71                         }
  72                 }
  73
  74                 public virtual string UpdateText {
  75                         get {
  76                                 return ViewState.GetString("UpdateText", string.Empty);
  77                         }
  78
  79                         set {
  80                                 ViewState["UpdateText"] = value;
  81                         }
  82                 }
  83                 #endregion      // Public Instance Properties
  84
  85                 #region Public Instance Methods
  86
  87                 // Modeled after Ben's CommandField.InitializeCell. Saved me a lot of figuring-out time :-)
  88                 public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType) {
  89                         base.InitializeCell (cell, columnIndex, itemType);
  90
  91                         switch(itemType) {
  92                                 case ListItemType.Separator:
  93                                 case ListItemType.Pager:
  94                                 case ListItemType.Footer:
  95                                 case ListItemType.Header: {
  96                                         // Base handles header and footer, dunno about the others
  97                                         return;
  98                                 }
  99
 100                                 case ListItemType.Item:
 101                                 case ListItemType.SelectedItem:
 102                                 case ListItemType.AlternatingItem:{
 103                                         cell.Controls.Add(CreateButton(ButtonType, EditText, "Edit", false));
 104                                         break;
 105                                 }
 106
 107                                 case ListItemType.EditItem: {
 108                                         cell.Controls.Add(CreateButton(ButtonType, UpdateText, "Update", true));
 109                                         cell.Controls.Add(new LiteralControl("&nbsp;"));
 110                                         cell.Controls.Add(CreateButton(ButtonType, CancelText, "Cancel", false));
 111                                         break;
 112                                 }
 113                         }
 114                 }
 115                 #endregion      // Public Instance Methods
 116
 117                 #region Private Methods
 118                 private Control CreateButton(ButtonColumnType type, string text, string command, bool valid) {
 119                         Button b;
 120                         LinkButton d;
 121
 122                         if (type == ButtonColumnType.LinkButton) {
 123                                 d = new ForeColorLinkButton();
 124                                 d.Text = text;
 125                                 d.CommandName = command;
 126                                 d.CausesValidation = valid;
 127                                 return d;
 128                         }
 129
 130                         b = new Button();
 131                         b.Text = text;
 132                         b.CommandName = command;
 133                         b.CausesValidation = valid;
 134                         return b;
 135                 }
 136                 #endregion      // Private Methods
 137         }
 138 }