91 lines
3.1 KiB
C#
91 lines
3.1 KiB
C#
//
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// System.Web.UI.WebControls.RegularExpressionValidator
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//
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// Authors:
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// Chris Toshok (toshok@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.Web;
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using System.Web.UI.WebControls;
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using System.Text;
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using System.Text.RegularExpressions;
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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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[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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// attributes
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[ToolboxData ("<{0}:RegularExpressionValidator runat=\"server\" ErrorMessage=\"RegularExpressionValidator\"></{0}:RegularExpressionValidator>")]
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public class RegularExpressionValidator : BaseValidator
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{
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public RegularExpressionValidator ()
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{
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}
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protected override void AddAttributesToRender (HtmlTextWriter writer)
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{
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if (RenderUplevel) {
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RegisterExpandoAttribute (ClientID, "evaluationfunction", "RegularExpressionValidatorEvaluateIsValid");
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if (ValidationExpression.Length > 0)
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RegisterExpandoAttribute (ClientID, "validationexpression", ValidationExpression, true);
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}
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base.AddAttributesToRender (writer);
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}
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protected override bool EvaluateIsValid ()
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{
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if (GetControlValidationValue (ControlToValidate).Trim() == "")
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return true;
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StringBuilder expr = new StringBuilder(ValidationExpression);
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if (expr.Length == 0 || expr [0] != '^')
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expr.Insert(0, '^');
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if (expr [expr.Length - 1] != '$')
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expr.Append('$');
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return Regex.IsMatch (GetControlValidationValue(ControlToValidate), expr.ToString ());
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}
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[Themeable (false)]
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[DefaultValue ("")]
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[Editor ("System.Web.UI.Design.WebControls.RegexTypeEditor, " + Consts.AssemblySystem_Design, typeof(System.Drawing.Design.UITypeEditor))]
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[WebSysDescription ("")]
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[WebCategory ("Behavior")]
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public string ValidationExpression {
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get {
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return ViewState.GetString ("ValidationExpression", "");
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}
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set {
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ViewState ["ValidationExpression"] = value;
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}
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}
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}
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}
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