69 lines
2.4 KiB
C#
69 lines
2.4 KiB
C#
//
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// System.Web.UI.WebControls.RequiredFieldValidator
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//
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// Authors:
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// Ben Maurer (bmaurer@novell.com)
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//
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// (C) 2005 Novell, Inc (http://www.novell.com)
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//
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// 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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using System.ComponentModel;
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using System.Security.Permissions;
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namespace System.Web.UI.WebControls {
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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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[ToolboxData ("<{0}:RequiredFieldValidator runat=\"server\" ErrorMessage=\"RequiredFieldValidator\"></{0}:RequiredFieldValidator>")]
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public class RequiredFieldValidator : BaseValidator {
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protected override void AddAttributesToRender (HtmlTextWriter w)
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{
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if (RenderUplevel) {
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RegisterExpandoAttribute (ClientID, "evaluationfunction", "RequiredFieldValidatorEvaluateIsValid");
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RegisterExpandoAttribute (ClientID, "initialvalue", InitialValue, true);
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}
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base.AddAttributesToRender (w);
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}
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protected override bool EvaluateIsValid ()
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{
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return GetControlValidationValue (ControlToValidate) != InitialValue;
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}
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[Themeable(false)]
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[DefaultValue("")]
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[WebSysDescription ("")]
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[WebCategory ("Behavior")]
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public string InitialValue {
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get {
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return ViewState.GetString ("InitialValue", "");
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}
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set {
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ViewState ["InitialValue"] = value;
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}
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}
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}
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}
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