You can programmatically create a folder on your computer, create a subfolder, create a file in the subfolder, and write data to the file. If the folder already exists, CreateDirectory does nothing, and no exception is thrown. However, File. Create replaces an existing file with a new file. The example uses an if - else statement to prevent an existing file from being replaced. By making the following changes in the example, you can specify different outcomes based on whether a file with a certain name already exists.
If such a file doesn't exist, the code creates one. If such a file exists, the code appends data to that file. ToString ; sw. WriteLine "Author: csharp examples" ; sw. WriteLine "Add one more line " ; sw. WriteLine "Done! CreateText fileName. WriteLine "Author: csharp examples" ;. WriteLine "Add one more line " ;. GetBytes "New file. Write txt, 0, txt. GetBytes "Author csharp examples" ; fs. Delete ;. Write txt , 0 , txt. GetBytes "Author csharp examples" ;.
WriteLine "Author: Mahesh Chand" ; sw. WriteLine "Author: Mahesh Chand" ;. Like this: Like Loading You may also like. Improve this question. Strnik Strnik 27 1 1 gold badge 2 2 silver badges 8 8 bronze badges. Check your bin folder. It may be placed inside that. When using System. WriteAllText there's no need for a FileStream. Create path creates and locks the file, so the subsequent call to WriteAllText will fail. Simply get rid of the FileStream.
Are you getting the "Text to add to the file" value written out to the console when reading it? Have you tried a more "compliant" path - without spaces? Are you guys in the same class or something? You have the same exact bug as in the marked duplicate, posted just yesterday. It's illegal to write to the same file you just opened using File. Submit your solution! When answering a question please: Read the question carefully. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome. Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid. Related Questions. Create text file in C without pointer.
In "C" how to test if file is a text file? Creating text file. Reading a big text file in C.
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