2 // System.Web.UI.WebControls.RegularExpressionValidator
5 // Chris Toshok (toshok@novell.com)
7 // (C) 2005 Novell, Inc (http://www.novell.com)
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.ComponentModel;
31 using System.Web.UI.WebControls;
33 using System.Text.RegularExpressions;
34 using System.Security.Permissions;
36 namespace System.Web.UI.WebControls {
39 [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
40 [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
43 [ToolboxData ("<{0}:RegularExpressionValidator runat=\"server\" ErrorMessage=\"RegularExpressionValidator\"></{0}:RegularExpressionValidator>")]
45 [ToolboxData ("<{0}:RegularExpressionValidator runat=server ErrorMessage=\"RegularExpressionValidator\"></{0}:RegularExpressionValidator>")]
47 public class RegularExpressionValidator : BaseValidator
49 public RegularExpressionValidator ()
53 protected override void AddAttributesToRender (HtmlTextWriter w)
57 RegisterExpandoAttribute (ClientID, "evaluationfunction", "RegularExpressionValidatorEvaluateIsValid");
58 if (ValidationExpression.Length > 0)
59 RegisterExpandoAttribute (ClientID, "validationexpression", ValidationExpression, true);
61 w.AddAttribute ("evaluationfunction", "RegularExpressionValidatorEvaluateIsValid", false);
62 if (ValidationExpression != "")
63 w.AddAttribute ("validationexpression", ValidationExpression);
67 base.AddAttributesToRender (w);
70 protected override bool EvaluateIsValid ()
72 if (GetControlValidationValue (ControlToValidate).Trim() == "")
75 StringBuilder expr = new StringBuilder(ValidationExpression);
77 if (expr.Length == 0 || expr [0] != '^')
80 if (expr [expr.Length - 1] != '$')
83 return Regex.IsMatch (GetControlValidationValue(ControlToValidate), expr.ToString ());
92 [Editor ("System.Web.UI.Design.WebControls.RegexTypeEditor, " + Consts.AssemblySystem_Design, typeof(System.Drawing.Design.UITypeEditor))]
93 [WebSysDescription ("")]
94 [WebCategory ("Behavior")]
95 public string ValidationExpression {
97 return ViewState.GetString ("ValidationExpression", "");
100 ViewState ["ValidationExpression"] = value;