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

   1 //
   2 // System.Web.UI.WebControls.CheckBoxField.cs
   3 //
   4 // Authors:
   5 //      Lluis Sanchez Gual (lluis@novell.com)
   6 //
   7 // (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 #if NET_2_0
  32 using System.Collections;
  33 using System.Collections.Specialized;
  34 using System.Web.UI;
  35 using System.ComponentModel;
  36 using System.Security.Permissions;
  37
  38 namespace System.Web.UI.WebControls {
  39
  40         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  41         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  42         public class CheckBoxField : BoundField
  43         {
  44             [EditorBrowsableAttribute (EditorBrowsableState.Never)]\r
  45             [BrowsableAttribute (false)]\r
  46             [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]\r
  47                 public override bool ConvertEmptyStringToNull {
  48                         get { throw GetNotSupportedPropException ("ConvertEmptyStringToNull"); }
  49                         set { throw GetNotSupportedPropException ("ConvertEmptyStringToNull"); }
  50                 }
  51
  52             [EditorBrowsableAttribute (EditorBrowsableState.Never)]\r
  53             [BrowsableAttribute (false)]\r
  54             [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]\r
  55                 public override string DataFormatString {
  56                         get { throw GetNotSupportedPropException ("DataFormatString"); }
  57                         set { throw GetNotSupportedPropException ("DataFormatString"); }
  58                 }
  59
  60             [EditorBrowsableAttribute (EditorBrowsableState.Never)]\r
  61             [BrowsableAttribute (false)]\r
  62             [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]\r
  63                 public override bool HtmlEncode {
  64                         get { throw GetNotSupportedPropException ("HtmlEncode"); }
  65                         set { throw GetNotSupportedPropException ("HtmlEncode"); }
  66                 }
  67
  68             [EditorBrowsableAttribute (EditorBrowsableState.Never)]\r
  69             [BrowsableAttribute (false)]\r
  70             [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]\r
  71                 public override string NullDisplayText {
  72                         get { throw GetNotSupportedPropException ("NullDisplayText"); }
  73                         set { throw GetNotSupportedPropException ("NullDisplayText"); }
  74                 }
  75
  76                 protected override bool SupportsHtmlEncode {
  77                         get { return false; }
  78                 }
  79
  80                 [LocalizableAttribute (true)]
  81                 [DefaultValueAttribute ("")]
  82                 [WebSysDescription ("")]
  83                 [WebCategoryAttribute ("Appearance")]
  84                 public virtual string Text {
  85                         get { return ViewState.GetString ("Text", ""); }
  86                         set {
  87                                 ViewState ["Text"] = value;
  88                                 OnFieldChanged ();
  89                         }
  90                 }
  91
  92                 protected override void InitializeDataCell (DataControlFieldCell cell, DataControlRowState rowState)
  93                 {
  94                         bool editable = (rowState & (DataControlRowState.Edit | DataControlRowState.Insert)) != 0;
  95                         CheckBox box = new CheckBox ();
  96                         box.Enabled = editable && !ReadOnly;
  97                         cell.Controls.Add (box);
  98                 }
  99
 100                 public override void ExtractValuesFromCell (IOrderedDictionary dictionary,
 101                         DataControlFieldCell cell, DataControlRowState rowState, bool includeReadOnly)
 102                 {
 103                         CheckBox box = (CheckBox) cell.Controls [0];
 104                         dictionary [DataField] = box.Checked;
 105                 }
 106
 107                 protected override void OnDataBindField (object sender, EventArgs e)
 108                 {
 109                         DataControlFieldCell cell = (DataControlFieldCell) sender;
 110                         CheckBox box = (CheckBox) cell.Controls [0];
 111                         object val = GetValue (cell.BindingContainer);
 112                         if (val != null) {
 113                                 box.Checked = (bool)val;
 114                                 if (!box.Visible)
 115                                         box.Visible = true;
 116                         }
 117                         else
 118                                 box.Visible = false;
 119                 }
 120
 121                 protected override object GetDesignTimeValue ()
 122                 {
 123                         return true;
 124                 }
 125
 126                 protected override DataControlField CreateField ()
 127                 {
 128                         return new CheckBoxField ();
 129                 }
 130
 131                 protected override void CopyProperties (DataControlField newField)
 132                 {
 133                         CheckBoxField field = (CheckBoxField) newField;
 134                         field.DataField = DataField;
 135                         field.ReadOnly = ReadOnly;
 136                         field.Text = Text;
 137                 }
 138         }
 139 }
 140 #endif