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Old 12-04-2005, 03:56 PM
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I am just beginning work with File I/O in Visual Basic .NET 2003 and have a simple question.

With a text file already created how would I search that text file for a particular piece of string?

For instance, a user would input a piece of string into a text box and click on a button. After doing so, I would like my application to search for that string in the text file.

Thanks in advance.
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Old 12-06-2005, 07:46 AM
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waynephSimple text search wayneph is offline
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All you should have to do is read the text file into a string and then use the String's .Contains property to see if the string exists. If you want it to be case insensitive, make sure to use .ToUpper or .ToLower before you compare.

Edit by wayne: Just Realized that .Contains is only availble in .NET 2.0. Check out .IndexOf instead
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