Write string c# to file

On Line 10, we have declared the path to the file we wish to write to. If the file does not exist, the StreamWriter object will create it. Note, if you include only a filename "WriteFile. You can also use your system's environment variables to dynamically reference known folders. The following snippet is a better way to write Line 10 above, because the code becomes compatible across different machines.

Combine Environment. GetFolderPath Environment. Desktop , "WriteFile. By passing the filePath variable as an argument to the StreamWriter class, StreamWriter will create and write to the file in that location. Note the use of the using statement on Line The using keyword ensures that the Dispose method of the referenced object is called, even if an exception occurs.

In this case, it properly disposes of the StreamWriter object once the file write operation is complete. Line 16 will write the string Free C tutorials at wellsb. This examples uses the WriteLine method, but the StreamWriter class also includes a Write method that will not include a newline character.

These are similar to the Write and WriteLine methods of the Console class. WriteLine "Vidya Agarwal" ; writer. WriteLine "Mahesh Chand" ; writer. WriteLine "Vijay Anand" ; writer. ReadAllText fullPath ; Console. WriteAllLines method writes a string array to a file. If the file is not created, it creates a new file. If the file is already created, it will overwrite the existing file.

Once file writing is done, it closes the file. An exception occurs if the file is readonly, the file name is too long, or the disk is full. Alternatively, you can also specify the Encoding. The following code snippet uses the File. WriteAllLines method to write an array of strings to a text file. You can direct hardcode it if you like. In this article, there are several examples showing various ways to write text to a file.

The first two examples use static convenience methods on the System. The third example shows how to add text to a file when you have to process each line individually as you write to the file. In the first three examples, you overwrite all existing content in the file. The final example shows how to append text to an existing file.

These examples all write string literals to files. If you want to format text written to a file, use the Format method or C string interpolation feature. Awaits a call to File.