Read files vb.net

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The ReadAllText method of the My. FileSystem object allows you to read from a text file. If you are reading from a file with extended characters, you will need to specify the file encoding. FileSystem object. You can use the ReadLine method of the StreamReader object to read a file one line at a time. Use the ReadAllText method of the My. FileSystem object to read the contents of a text file into a string, supplying the path. The following example reads the contents of test. FileSystem object to read the contents of a text file into a string, supplying the path and file encoding type.

StreamReader class supports several methods for reading text files and offers a way of determining whether you are at the end of the file that's different from previous versions of Visual Basic. Line-by-line Reading a text file line-by-line is straightforward. We can read each line with a ReadLine method. To determine whether we have reached the end of the file, we call the Peek method of the StreamReader object.

The Peek method reads the next character in the file without changing the place that we are currently reading. If we have reached the end of the file, Peek returns Listing B provides an example for reading a file line-by-line until the end of the file.

Since reading an entire file can mean reading a large amount of data, be sure that the string can handle that much data. One character at a time If you need to read the file a character at a time, you can use the Read method. This method returns the integer character value of each character read. Listing C demonstrates how to use the Read method. Tap into the power We've barely scratched the surface of the new file functionality included in.

NET, but at least you have an idea of the power now available in the latest edition of Visual Basic. The abilities of the classes in the System. IO namespace are quite useful, but if you want to continue to use the traditional Visual Basic file operations, those are still supported. NET What types of. NET content would you like to see? Post your suggestions below or e-mail us with your suggestions.

Editor's Picks. The best programming languages to learn in Check for Log4j vulnerabilities with this simple-to-use script. TasksBoard is the kanban interface for Google Tasks you've been waiting for. Paging Zefram Cochrane: Humans have figured out how to make a warp bubble. ReadString uint 8 ;. Thank you for your response. I did manage to fix my problem with your code however your code forces me to state exactly the number of chars I wish to read.

If I try to enter a number higher than the char count in my file the code doesn't work. I plan to constantly update this file char count.

How can I change the code to accept any char count? Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums A-B. NET development skills to build Windows Store apps. Sign in to vote. Friday, December 2, AM.