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// 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.
//
// Copyright (c) 2005-2010 Novell, Inc. (http://www.novell.com)
//
// Authors:
// Peter Bartok (pbartok@novell.com)
//
//
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
[DefaultEvent("ServerValidate")]
[ToolboxData("<{0}:CustomValidator runat=\"server\" ErrorMessage=\"CustomValidator\"></{0}:CustomValidator>")]
public class CustomValidator : BaseValidator
{
static readonly object serverValidateEvent = new object ();
EventHandlerList events = new EventHandlerList ();
#region Events
[WebSysDescription ("")]
[WebCategory ("Behavior")]
public event ServerValidateEventHandler ServerValidate {
add { events.AddHandler (serverValidateEvent, value); }
remove { events.RemoveHandler (serverValidateEvent, value); }
}
#endregion // Events
#region Public Constructors
public CustomValidator()
{
}
#endregion // Public Constructors
#region Public Instance Properties
[DefaultValue("")]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
[Themeable (false)]
public string ClientValidationFunction {
get { return ViewState.GetString("ClientValidationFunction", String.Empty); }
set { ViewState["ClientValidationFunction"] = value; }
}
[Themeable (false)]
[DefaultValue (false)]
public bool ValidateEmptyText {
get { return ViewState.GetBool ("ValidateEmptyText", false); }
set { ViewState ["ValidateEmptyText"] = value; }
}
#endregion // Public Instance Properties
#region Public Instance Methods
protected override void AddAttributesToRender (HtmlTextWriter writer)
{
base.AddAttributesToRender (writer);
if (base.RenderUplevel) {
string s;
RegisterExpandoAttribute (ClientID, "evaluationfunction", "CustomValidatorEvaluateIsValid");
if (ValidateEmptyText)
RegisterExpandoAttribute (ClientID, "validateemptytext", "true");
s = ClientValidationFunction;
if (!String.IsNullOrEmpty (s))
RegisterExpandoAttribute (ClientID, "clientvalidationfunction", s, true);
}
}
protected override bool ControlPropertiesValid ()
{
if (String.IsNullOrEmpty (ControlToValidate))
return true;
return base.ControlPropertiesValid ();
}
protected override bool EvaluateIsValid ()
{
string controlToValidate = ControlToValidate;
if (!String.IsNullOrEmpty (controlToValidate)) {
string value = GetControlValidationValue (controlToValidate);
if (String.IsNullOrEmpty (value) && !ValidateEmptyText)
return true;
return OnServerValidate (value);
}
return OnServerValidate(string.Empty);
}
protected virtual bool OnServerValidate (string value)
{
ServerValidateEventHandler eh = events [serverValidateEvent] as ServerValidateEventHandler;
if (eh != null) {
ServerValidateEventArgs e;
e = new ServerValidateEventArgs(value, true);
eh (this, e);
return e.IsValid;
}
return true;
}
#endregion // Public Instance Methods
}
}
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