I have some questions:

1. How to include an ASP.NET page in many other ASP.NET pages to avoid to rewrite the code
2. How can we programmatically verify whether the UserName and Password is Correct
3. How to format a Telephone number in the xxx-xxx-xxxx format

Hi there,

Can you post questions that are not directly related in a more general ASP.NET forum? You find the complete list here: http://p2p.wrox.com/asp-net-4-539/

That said:

1. How to include an ASP.NET page in many other ASP.NET pages to avoid to rewrite the code

Includes are no longer used in ASP.NET. For presentation related stuff you typically use Master Pages, User Controls and Themes. For code related ,aterial, you can use class files located in App_Code (Web Site Projects) or anywhere else (for Web Application projects)

1. How can we programmatically verify whether the UserName and Password is Correct

It depends on where they are stored. If you're using the Membership features, you can use methods on the Membership class. For a custom data store you need to use custom code.

1. How to format a Telephone number in the xxx-xxx-xxxx format

You can use JavaScript and regular expressions for this. Google for it and you'll find many ready-made solutions. I think the ASP.NET AJAX Control Toolkit has a control for this.

Cheers.

Imar

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Imar Spaanjaars
http://Imar.Spaanjaars.Com
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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