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//
// System.Web.UI.WebControls.RegularExpressionValidator
//
// Authors:
// Chris Toshok (toshok@novell.com)
//
// (C) 2005 Novell, Inc (http://www.novell.com)
//
// 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.
//
using System.ComponentModel;
using System.Web;
using System.Web.UI.WebControls;
using System.Text;
using System.Text.RegularExpressions;
using System.Security.Permissions;
namespace System.Web.UI.WebControls {
// CAS
[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
#if NET_2_0
[ToolboxData ("<{0}:RegularExpressionValidator runat=\"server\" ErrorMessage=\"RegularExpressionValidator\"></{0}:RegularExpressionValidator>")]
#else
[ToolboxData ("<{0}:RegularExpressionValidator runat=server ErrorMessage=\"RegularExpressionValidator\"></{0}:RegularExpressionValidator>")]
#endif
public class RegularExpressionValidator : BaseValidator
{
public RegularExpressionValidator ()
{
}
protected override void AddAttributesToRender (HtmlTextWriter w)
{
if (RenderUplevel) {
#if NET_2_0
RegisterExpandoAttribute (ClientID, "evaluationfunction", "RegularExpressionValidatorEvaluateIsValid");
if (ValidationExpression.Length > 0)
RegisterExpandoAttribute (ClientID, "validationexpression", ValidationExpression, true);
#else
w.AddAttribute ("evaluationfunction", "RegularExpressionValidatorEvaluateIsValid", false);
if (ValidationExpression != "")
w.AddAttribute ("validationexpression", ValidationExpression);
#endif
}
base.AddAttributesToRender (w);
}
protected override bool EvaluateIsValid ()
{
if (GetControlValidationValue (ControlToValidate).Trim() == "")
return true;
StringBuilder expr = new StringBuilder(ValidationExpression);
if (expr.Length == 0 || expr [0] != '^')
expr.Insert(0, '^');
if (expr [expr.Length - 1] != '$')
expr.Append('$');
return Regex.IsMatch (GetControlValidationValue(ControlToValidate), expr.ToString ());
}
#if NET_2_0
[Themeable (false)]
#else
[Bindable(true)]
#endif
[DefaultValue ("")]
[Editor ("System.Web.UI.Design.WebControls.RegexTypeEditor, " + Consts.AssemblySystem_Design, typeof(System.Drawing.Design.UITypeEditor))]
[WebSysDescription ("")]
[WebCategory ("Behavior")]
public string ValidationExpression {
get {
return ViewState.GetString ("ValidationExpression", "");
}
set {
ViewState ["ValidationExpression"] = value;
}
}
}
}
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