130 lines
4.2 KiB
C#
130 lines
4.2 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2005-2010 Novell, Inc. (http://www.novell.com)
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//
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// Authors:
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// Peter Bartok (pbartok@novell.com)
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//
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//
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using System.ComponentModel;
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using System.Security.Permissions;
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namespace System.Web.UI.WebControls
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{
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// CAS
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[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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// attributes
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[DefaultEvent("ServerValidate")]
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[ToolboxData("<{0}:CustomValidator runat=\"server\" ErrorMessage=\"CustomValidator\"></{0}:CustomValidator>")]
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public class CustomValidator : BaseValidator
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{
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static readonly object serverValidateEvent = new object ();
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EventHandlerList events = new EventHandlerList ();
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#region Events
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[WebSysDescription ("")]
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[WebCategory ("Behavior")]
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public event ServerValidateEventHandler ServerValidate {
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add { events.AddHandler (serverValidateEvent, value); }
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remove { events.RemoveHandler (serverValidateEvent, value); }
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}
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#endregion // Events
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#region Public Constructors
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public CustomValidator()
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{
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}
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#endregion // Public Constructors
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#region Public Instance Properties
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[DefaultValue("")]
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[WebSysDescription ("")]
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[WebCategory ("Behavior")]
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[Themeable (false)]
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public string ClientValidationFunction {
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get { return ViewState.GetString("ClientValidationFunction", String.Empty); }
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set { ViewState["ClientValidationFunction"] = value; }
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}
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[Themeable (false)]
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[DefaultValue (false)]
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public bool ValidateEmptyText {
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get { return ViewState.GetBool ("ValidateEmptyText", false); }
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set { ViewState ["ValidateEmptyText"] = value; }
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}
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#endregion // Public Instance Properties
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#region Public Instance Methods
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protected override void AddAttributesToRender (HtmlTextWriter writer)
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{
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base.AddAttributesToRender (writer);
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if (base.RenderUplevel) {
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string s;
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RegisterExpandoAttribute (ClientID, "evaluationfunction", "CustomValidatorEvaluateIsValid");
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if (ValidateEmptyText)
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RegisterExpandoAttribute (ClientID, "validateemptytext", "true");
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s = ClientValidationFunction;
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if (!String.IsNullOrEmpty (s))
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RegisterExpandoAttribute (ClientID, "clientvalidationfunction", s, true);
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}
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}
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protected override bool ControlPropertiesValid ()
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{
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if (String.IsNullOrEmpty (ControlToValidate))
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return true;
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return base.ControlPropertiesValid ();
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}
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protected override bool EvaluateIsValid ()
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{
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string controlToValidate = ControlToValidate;
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if (!String.IsNullOrEmpty (controlToValidate)) {
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string value = GetControlValidationValue (controlToValidate);
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if (String.IsNullOrEmpty (value) && !ValidateEmptyText)
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return true;
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return OnServerValidate (value);
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}
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return OnServerValidate(string.Empty);
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}
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protected virtual bool OnServerValidate (string value)
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{
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ServerValidateEventHandler eh = events [serverValidateEvent] as ServerValidateEventHandler;
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if (eh != null) {
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ServerValidateEventArgs e;
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e = new ServerValidateEventArgs(value, true);
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eh (this, e);
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return e.IsValid;
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}
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return true;
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}
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#endregion // Public Instance Methods
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}
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}
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