regular expression

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HOW TO DO PATTERN MATCHING IN VB.NET Searching for a particular text is one of the important applications in text processing. Searching becomes more difficult when the size of text increases. Regular expression is a method used to reduce the time and complexity of searching. Regular expressions also called as RegEX which describes the pattern (set of strings which needs to be searched). HOW TO...
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In this tutorial, I will teach you how to validate a Registration Form using Regular Expression in C# . With this method, you can restrict all the textboxes in a form.It is also a guide for all users when they're going to fill up a registration form . Let’s get started: Open Microsoft Visual Studio 2008 and create new Windows Form Application for C# . Then, do the following Form as follows. Go to...
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Today, i will teach you how to create a program that will validate a URL inputted using C#. We know that a URL is the address of a specific Web site or file on the Internet. It cannot have spaces or certain other characters and uses forward slashes to denote different directories. Some examples of URLs are https://www.sourcecodester.com/ , http://google.com/ , etc. Now, let's start this...
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Today, I will teach you how to create a program that determines whether an inputted email is valid or not using C#. I have already a tutorial in this with vb.net but now I used C# here. So, now let's start this tutorial! 1. Let's start with creating a Windows Form Application in C# for this tutorial by following the following steps in Microsoft Visual Studio: Go to File , click New Project , and...
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Hi! This is my another tutorial in VB.NET entitled " Validating a Phone Number ". We will just validate a phone number by using the System.Text.RegularExpressions namespace. So, now let's start this tutorial! 1. Let's start with creating a Windows Form Application for this tutorial by following the following steps in Microsoft Visual Studio: Go to File , click New Project , and choose Windows...