0Writing lines to a file using the System.IO.StreamWriter class
suggest changeThe System.IO.StreamWriter class:
Implements a TextWriter for writing characters to a stream in a particular encoding.
Using the WriteLine
method, you can write content line-by-line to a file.
Notice the use of the using
keyword which makes sure the StreamWriter object is disposed as soon as it goes out of scope and thus the file is closed.
string[] lines = { "My first string", "My second string", "and even a third string" };
using (System.IO.StreamWriter sw = new System.IO.StreamWriter(@"C:\MyFolder\OutputText.txt"))
{
foreach (string line in lines)
{
sw.WriteLine(line);
}
}
Note that the StreamWriter can receive a second bool
parameter in it’s constructor, allowing to Append
to a file instead of overwriting the file:
bool appendExistingFile = true;
using (System.IO.StreamWriter sw = new System.IO.StreamWriter(@"C:\MyFolder\OutputText.txt", appendExistingFile ))
{
sw.WriteLine("This line will be appended to the existing file");
}
Found a mistake? Have a question or improvement idea?
Let me know.
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