Read text file using c#.net

If you look under the hood of the File. ReadAllLines method, you can find implementation similar to this. As it was previously written, the using statement disposes StreamReader and FileStream which closes the file.

To reduce memory usage for large text files , you can process lines immediately instead of adding it to the list as in the previous example. To do that use File. This method internally creates Enumerator. ToString ;. Add a comment. Active Oldest Votes. Inept Adept Inept Adept 4 4 silver badges 11 11 bronze badges.

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The following code snippet reads a text file into an array of strings. ReadAllLines textFile ; foreach string line in lines Console.

WriteLine line ; One more way to read a text file is using a StreamReader class that implements a TextReader and reads characters from a byte stream in a particular encoding.

The ReadLine method of StreamReader reads one line at a time. Close ; Console. To test this code, find a text file or create one with some text in it on your machine and change the "textFile" variable to the full path of your.

View All. Mahesh Chand Updated date Feb 04,