asp.net Regularexpressionvalidator无法按预期工作

Question

I've the following textbox control and regular expression validator:

<asp:TextBox runat="server" ID="ATextBox" style="width:400px;"/>
                <asp:RegularExpressionValidator runat="server" ID="ATextBoxRegularExpressionValidator" Display="Dynamic"
                    ControlToValidate="ATextBox" ValidationExpression="^([a-zA-Z0-9]+)|((https?://)?([\w-]+\.)+[\w-]+(/[-\w ;,./?%&=]*)?)$" 
                    ErrorMessage="<%$ Resources:Antivirus, AVURL_InvalidLink %>">
                                       </asp:RegularExpressionValidator>

The regular expression is:

^([a-zA-Z0-9]+)|((https?://)?([\w-]+\.)+[\w-]+(/[-\w ;,./?%&=]*)?)$

which works when I test it with any validator expression testers such as:

http://derekslager.com/blog/posts/2007/09/a-better-dotnet-regular-expression-tester.ashx

Basically the regular expression should accept all URL's and hostnames.

So good: google google.com http://google.com https://google.com

Bad:

<asp>http://google.com</asp>

Anyone any idea why my regular expression when running in the app is failing the following: google.com http://google.com https://google.com

UPDATE

I've managed to solve my problem.... the regular expression that is doing what I want to do is:

^((https?://)?([\\w-]+.) [\\w-]+(/[-\\w ;,./?%&=] )?)$

Thanks for your help

Answer 1

I would say the first problem is that the / need escaped:

^([a-zA-Z0-9]+)|((https?:\/\/)?([\w-]+\.)+[\w-]+(\/[-\w ;,.\/?%&=]*)?)$

The next problem of interest is that the Regex you currently have doesn't really ever match the entire URL, it matches and groups portions. But maybe that's what you want.

Here is a Rubular with the modified Regex and values you noted.