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//
// System.Web.UI.WebControls.CompareValidator
//
// Authors:
// Chris Toshok (toshok@novell.com)
//
// (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Globalization;
using System.ComponentModel;
using System.Security.Permissions;
namespace System.Web.UI.WebControls
{
// CAS
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
[ToolboxData("<{0}:CompareValidator runat=\"server\" ErrorMessage=\"CompareValidator\"></{0}:CompareValidator>")]
public class CompareValidator : BaseCompareValidator
{
public CompareValidator ()
{
}
protected override void AddAttributesToRender (HtmlTextWriter writer)
{
if (RenderUplevel) {
RegisterExpandoAttribute (ClientID, "evaluationfunction", "CompareValidatorEvaluateIsValid");
if (ControlToCompare.Length > 0)
RegisterExpandoAttribute (ClientID, "controltocompare", GetControlRenderID (ControlToCompare));
if (ValueToCompare.Length > 0)
RegisterExpandoAttribute (ClientID, "valuetocompare", ValueToCompare, true);
RegisterExpandoAttribute (ClientID, "operator", Operator.ToString ());
}
base.AddAttributesToRender (writer);
}
protected override bool ControlPropertiesValid ()
{
if ((this.Operator != ValidationCompareOperator.DataTypeCheck) && ControlToCompare.Length == 0 &&
!BaseCompareValidator.CanConvert (this.ValueToCompare, this.Type, this.CultureInvariantValues)) {
throw new HttpException(
String.Format("Unable to convert the value: {0} as a {1}", ValueToCompare,
Enum.GetName(typeof(ValidationDataType), this.Type)));
}
if (ControlToCompare.Length > 0) {
if (string.CompareOrdinal (ControlToCompare, ControlToValidate) == 0)
throw new HttpException (String.Format ("Control '{0}' cannot have the same value '{1}' for both ControlToValidate and ControlToCompare.", ID, ControlToCompare));
CheckControlValidationProperty (ControlToCompare, String.Empty);
}
return base.ControlPropertiesValid ();
}
protected override bool EvaluateIsValid ()
{
string control_value;
control_value = GetControlValidationValue (this.ControlToValidate);
if (control_value == null)
return true;
control_value = control_value.Trim ();
if (control_value.Length == 0)
return true;
string compare;
/* ControlToCompare takes precendence, if it's set. */
string controlToCompare = ControlToCompare;
compare = (!String.IsNullOrEmpty (controlToCompare) ? GetControlValidationValue (controlToCompare) : ValueToCompare);
return BaseCompareValidator.Compare (GetControlValidationValue (ControlToValidate), false,
compare, this.CultureInvariantValues,
Operator, this.Type);
}
[DefaultValue("")]
[TypeConverter(typeof(System.Web.UI.WebControls.ValidatedControlConverter))]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
[Themeable (false)]
public string ControlToCompare {
get { return ViewState.GetString ("ControlToCompare", String.Empty); }
set { ViewState["ControlToCompare"] = value; }
}
[DefaultValue(ValidationCompareOperator.Equal)]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
[Themeable (false)]
public ValidationCompareOperator Operator {
get { return (ValidationCompareOperator)ViewState.GetInt ("Operator", (int)ValidationCompareOperator.Equal); }
set { ViewState ["Operator"] = (int)value; }
}
[DefaultValue("")]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
[Themeable (false)]
public string ValueToCompare {
get { return ViewState.GetString ("ValueToCompare", String.Empty); }
set { ViewState ["ValueToCompare"] = value; }
}
}
}
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