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regex.aspx Source Code
<!-- submit-form4.aspx Example Post data back to same form, but use validation controls. --> <%@ Page Language="C#" %> <script runat=server> public void btnSubmit_Click(object sender, EventArgs e) { if (Page.IsValid) { litResult.Text = Expression accepted.; } else { litResult.Text = ; } } public void btnEnter_Click(object sender, EventArgs e) { Validator1.ValidationExpression = txtRegEx.Text; litResult.Text = Validation expression entered.; } </script> <html> <head> <title>submit-form4.aspx Example</title> <link rel=stylesheet type=text/css href=examples.css /> </head> <body> <h2>regex.aspx Example</h2> <h3>Validate input given a regular expression.</h3> <p> <p> <form ID=frmRegEx runat=server> <table> <tr> <td style=text-align:right> <asp:Label runat=server ID=labInput Text=Input Expression /> </td> <td style=text-align:right; width:2in;> <asp:TextBox runat=server ID=txtInput /> </td> <td> <asp:RegularExpressionValidator ID=Validator1 runat=server ControlToValidate=txtInput ErrorMessage=Expression not accepted. /> </td> </tr> <tr> <td style=text-align:right> <asp:Label runat=server ID=labRegEx Text=Validation Expression /> </td> <td style=text-align:right; width:2in;> <asp:TextBox runat=server ID=txtRegEx /> </td> <td> </td> </tr> </table> <p> <asp:Button runat=server id=btnEnter Text=Enter Regular Expression style=width: 4.5in; OnClick=btnEnter_Click /> </p> <p> <asp:Button runat=server id=btnSubmit Text=Validate Expression style=width: 4.5in; OnClick=btnSubmit_Click /> </p> <p> <asp:Literal runat=server id=litResult /> </p> </form> </body> </html>