Write to Text File in C#

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First, create a new console app:

Next, add:

using System.IO;

Now add code:

using (StreamWriter writer = new StreamWriter("filename.txt"))
{
 writer.Write("1");
 writer.WriteLine("2");
 writer.WriteLine("3");
 writer.Write("4");
}

Now go to the directory you ran the code from. You will see the filename.txt file created:

This code can also be written as:

 StreamWriter writer = new StreamWriter("filename.txt");
 writer.Write("1");
 writer.WriteLine("2");
 writer.WriteLine("3");
 writer.Write("4");
 writer.Flush();
 writer.Close();

 

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Filed under: C#

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