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

   1 //
   2 // System.Web.UI.WebControls.CompareValidator.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 //
  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
  33 using System;
  34 using System.Web;
  35 using System.Web.UI;
  36 using System.ComponentModel;
  37
  38 namespace System.Web.UI.WebControls
  39 {
  40         [ToolboxData("<{0}:CompareValidator runat=\"server\""
  41                      + "ErrorMessage=\"CompareValidator\"></{0}:CompareValidator>")]
  42         public class CompareValidator: BaseCompareValidator
  43         {
  44                 public CompareValidator()
  45                 {
  46                         // Intitalize();
  47                 }
  48
  49                 [DefaultValue (""), WebCategory ("Behavior")]
  50                 [TypeConverter (typeof (ValidatedControlConverter))]
  51                 [WebSysDescription ("The ID of a control that is compared.")]
  52                 public string ControlToCompare
  53                 {
  54                         get
  55                         {
  56                                 object o = ViewState["ControlToCompare"];
  57                                 if(o!=null)
  58                                         return (string)o;
  59                                 return String.Empty;
  60                         }
  61
  62                         set
  63                         {
  64                                 ViewState["ControlToCompare"] = value;
  65                         }
  66                 }
  67
  68                 [DefaultValue (typeof (ValidationCompareOperator), "Equal"), WebCategory ("Behavior")]
  69                 [WebSysDescription ("The operator that is used for comparison.")]
  70                 public ValidationCompareOperator Operator
  71                 {
  72                         get
  73                         {
  74                                 object o = ViewState["Operator"];
  75                                 if(o!=null)
  76                                         return (ValidationCompareOperator)o;
  77                                 return ValidationCompareOperator.Equal;
  78                         }
  79                         set
  80                         {
  81                                 if(!System.Enum.IsDefined(typeof(ValidationCompareOperator), value))
  82                                         throw new ArgumentException();
  83                                 ViewState["Operator"] = value;
  84                         }
  85                 }
  86
  87                 [DefaultValue (""), Bindable (true), WebCategory ("Behavior")]
  88                 [WebSysDescription ("The value that is compared to.")]
  89                 public string ValueToCompare
  90                 {
  91                         get
  92                         {
  93                                 object o = ViewState["ValueToCompare"];
  94                                 if(o!=null)
  95                                         return (string)o;
  96                                 return String.Empty;
  97                         }
  98                         set
  99                         {
 100                                 ViewState["ValueToCompare"] = value;
 101                         }
 102                 }
 103
 104                 protected override bool EvaluateIsValid ()
 105                 {
 106                         string ctrl = GetControlValidationValue (ControlToValidate);
 107                         if (ctrl == null || ctrl.Length == 0)
 108                                 return true;
 109
 110                         string cmp;
 111                         if (ControlToCompare.Length > 0) {
 112                                 cmp = GetControlValidationValue (ControlToCompare);
 113                         } else {
 114                                 cmp = ValueToCompare;
 115                         }
 116
 117                         return Compare (ctrl, cmp, Operator, Type);
 118                 }
 119
 120                 [MonoTODO]
 121                 protected override void AddAttributesToRender (HtmlTextWriter writer)
 122                 {
 123                         base.AddAttributesToRender (writer);
 124                 }
 125
 126                 [MonoTODO]
 127                 protected override bool ControlPropertiesValid ()
 128                 {
 129                         return base.ControlPropertiesValid ();
 130                 }
 131         }
 132 }