Menu
What's the difference between File.WriteAllBytes and FileStream.Write/WriteBytes? I have a bitmap object that and I want to create a new bmp/jpg/png on disk. I think I read somewhere that WriteAllBytes uses FileStream.Write underneath?
732
C# write text with StreamWriter's WriteLine txt"; using var sw = new StreamWriter(path); sw. WriteLine("old falcon"); Console. WriteLine("data written to file"); The example writes one line to the text file.
WriteAllBytes(String) is an inbuilt File class method that is used to create a new file then writes the specified byte array to the file and then closes the file. If the target file already exists, it is overwritten. Syntax: public static void WriteAllBytes (string path, byte[] bytes);
Creates a new file, writes the specified byte array to the file, and then closes the file. If the target file already exists, it is overwritten.
The FileStream is a class used for reading and writing files in C#. It is part of the System.IO namespace. To manipulate files using FileStream, you need to create an object of FileStream class. This object has four parameters; the Name of the File, FileMode, FileAccess, and FileShare.
I think I read somewhere that WriteAllBytes uses FileStream.Write underneath? WriteAllBytes is just a convinience method, that wraps the underlying Stream operations. (Create a file, write to stream, close stream, etc). Use it if it fits your needs. If you need more control on the underlying operations, fallback to using a Stream or similar.
File.WriteAllBytes () Method in C# with Examples Last Updated : 26 Feb, 2021 File.WriteAllBytes (String) is an inbuilt File class method that is used to create a new file then writes the specified byte array to the file and then closes the file. If the target file already exists, it is overwritten.
File.WriteAllBytes () Method in C# with Examples. File.WriteAllBytes (String) is an inbuilt File class method that is used to create a new file then writes the specified byte array to the file and then closes the file. If the target file already exists, it is overwritten.
The WriteAllBytes method opens a file, writes to it, and then closes it. Code that uses the WriteAllBytes method is simpler than code that uses a BinaryWriter object. However, if you are adding data to a file using a loop, a BinaryWriter object can provide better performance because you only have to open and close the file once.
WriteAllBytes is just a convinience method, that wraps the underlying Stream operations. (Create a file, write to stream, close stream, etc). Use it if it fits your needs. If you need more control on the underlying operations, fallback to using a Streamor similar.
It is all about using the right abstraction for the task.
192
Use WriteAllBytes to just save all the bytes, use Write if you need to watch the progress.
37
You're on the wrong track with this. Saving a bitmap object requires Image.Save(). That's a method that knows how to use an image encoder to convert a bitmap into the bytes that another program (or yours) can load back. There are several image encoders, you can select the one you want with the Save() overload that lets you pick the ImageFormat. The BMP format is the native Windows format, it is uncompressed. The PNG format is nice, it is a compressed lossless format. The JPEG format is a compressed lossy format, good for photos. File size is big to small in order.
30
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
