C# FileStream Methodları Aptallar için

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If the write operation is successful, the current position of the stream is advanced by the number of bytes written. If an exception occurs, the current position of the stream is unchanged.

ReadWrite – It gives read and writes access to the file. veri kişi be written to and read from the file.

Now it depends how you tasavvur to use both of these. For eg: Let us assume you want to read binary data from the database, you would go in for a MemoryStream. However if you want to read a file on your system, you would go in for a FileStream.

To solidify the concept before we move on to files, let’s start with something a little smaller: a few lines of text.

A file is an ordered and named collection of bytes that özgü persistent storage. When you work with files, you work with directory paths, disk storage, and file and directory names. In contrast, a stream is a sequence of bytes that you birey use to read from and write to a backing store, which güç be one of several storage mediums (for example, disks or memory).

In stream, you get a chunk of eg. file to the memory. When you reach the end of chunk, stream gets the next chunk from file to the memory. It all happens in low-level background while you are just iterating the stream. That's why it's called stream.

Typically, I use a MemoryStream if I need a stream, but I don't want anything to hit the disk, and I use a FileStream when writing a file to disk.

So, rather than getting whole file at once, it would be better to retrieve the file a piece at a time and pass each piece on to the destination one at a time. This is what a Stream does and that's where the two different types of stream you mentioned come in: We güç use a FileStream to retrieve data from a file a piece at a time and the database API may make available a MemoryStream endpoint we sevimli write to a piece at a time. We connect those two 'pipes' together to flow the file pieces from file to database.

This method reads a maximum of buffer.Length bytes from the current file stream and stores them in buffer. The current position within the file stream is advanced by the number of bytes read; however, if an exception occurs, the current position within the file stream remains unchanged.

Reading or writing a large amount of data sevimli be resource-intensive. You should perform these tasks asynchronously if your application needs to remain responsive to the user.

Collaborate with us on GitHub The source for this content sevimli be found on GitHub, where you birey also create and review issues and pull requests. For more information, see our contributor guide.

Now imagine 1Gb of veri. Even on a large server with 128Gb of data, and assuming 0 overhead from the OS and system, we could at most only load 128Gb of veri into memory before we ran out.

The check here abstract base class Stream supports reading and writing bytes. All classes that represent streams inherit from the Stream class.

Streaming the data is how we are able to accommodate not just 128, but thousands of concurrent connections.

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