Writing in text file using c#

If it is not specified, UTF8 is set. WriteAllLines method creates a new file, writes one or more strings to the file, and then closes the file. WriteAllBytes method creates a new file, writes the specified byte array to the file, and then closes the file. The StreamWriter's WriteLine method writes out a formatted string and a new line to the stream.

A line is written to the text file. We use the using keyword to automatically release the file resource when the sw variable goes out of scope. The FileStream's write method writes a block of bytes to the file stream. The first parameter is the buffer containing data to write to the stream.

Linq; using System. Text; using System. Tasks; using System. Forms; using System. Clear ; txtBalance. Clear ; txtFirstName. Clear ; txtLastName. You should probably also use StreamWriter in an using block to make sure it is disposed of after use. Thank you guys, with the other post and the MSDN I got it working, I will post my final code later but right now I cant because I dont have enough reputation points, also is it proper etiquette here to post your answer code or just do a thank you in comments?

Add a comment. Active Oldest Votes. WriteLine String. DeeDee DeeDee 2, 2 2 gold badges 15 15 silver badges 21 21 bronze badges. For the file create you can use: File. Create file. Join ",", txtAccount. Text, txtBalance. Text, txtFirstName. Text, txtLastName. NewLine; File. AppendAllText file. FileName, line ; You also need to move the 'SaveFileDialog file' to be a class field, not a method local variable. On the File menu, point to New , and then click Project. This code creates a file that is named Test1.

Open Test1. For all file manipulations, it's good programming practice to wrap the code inside a try-catch-finally block to handle errors and exceptions. Specifically, you may want to release handles to the file in the final block so that the file isn't locked indefinitely.

Some possible errors include a file that doesn't exist, or a file that is already in use. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No.

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