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<h1>Windows Forms: How to Use Regular Expressions</h1>
<p>This sample application shows how to use regular expressions. If you are not
familiar with regular expressions, they are a well-established and standard way
to parse text files as well as to search and optionally replace occurrences of
substrings and text patterns. They can be a very powerful tool in your
development arsenal. For more information, go to <A href="http://msdn.microsoft.com">
http://msdn.microsoft.com</A> and type "regular expressions" in
the search engine. </p>
<h2>Featured Highlights</h2>
<UL>
<LI>
The "Simple Samples" tab is a good introduction to the use of regular
expressions. You can see how to find the first occurrence of a number in a
string, as well as try out increasingly difficult examples of field validation.
<LI>
The "Screen Scrape" tab shows off more advanced uses of regular expressions.
You can enter a Web address and view the links or images contained therein.
HTML tag attributes are displayed in a ListView control. You can double-click
an image to view it, or double-click a link to open Internet Explorer and view
the page.
<LI>
The "RegEx Tester" tab provides a convenient way for you to experiement with
regular expressions. It also demonstrates how to do search and replace and
string splitting.</LI></UL>
<h2>Requirements</h2>
<p>To run the Screen Scrape examples you will need an active connection to the
Internet.<br>
Microsoft Visual Studio.NET Professional<br>
Windows 2000 or Windows XP.</p>
<h2>Running the Sample</h2>
<p>Simply press <b>F5</b>.</p>
<p><b>See Also</b></p>
<p>
<a href="ms-help://MS.VSCC/MS.MSDNVS/cpguide/html/cpconusingregularexpressionclasses.htm">
Regular Expression Classes</a>
<a href="ms-help://MS.VSCC/MS.MSDNVS/vsintro7/html/vxgrfRegularExpressionsS.htm">
Regular Expression List</a></p>
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