[C#] How to Create a File

We can create a file in two different following methods
+ File.Create
+ File.CreateText

FileInfo.Create Method

The FileInfo.Create method creates a file at the given path. If just a file name is provided without a path, the file will be created in the current folder.
The following code snippet creates a file using the Create method that returns a FileSteam object. The Write method of FileStream can be used to write text to the file.

// Full file name
string fileName = @"C:fileName.txt";
FileInfo fi = new FileInfo(fileName);
try
{
	// Check if file already exists. If yes, delete it.
	if (fi.Exists)
	{
		fi.Delete();
	}
	// Create a new file
	using (FileStream fs = fi.Create())
	{
		Byte[] txt = new UTF8Encoding(true).GetBytes("New file.");
		fs.Write(txt, 0, txt.Length);
		Byte[] author = new UTF8Encoding(true).GetBytes("Author CsharpCanBan.Com");
		fs.Write(author, 0, author.Length);
	}
	// Write file contents on console.
	using (StreamReader sr = File.OpenText(fileName))
	{
		string s = "";
		while ((s = sr.ReadLine()) != null)
		{
			Console.WriteLine(s);
		}
	}
}
catch (Exception Ex)
{
	Console.WriteLine(Ex.ToString());
}

FileInfo.CreateText Method

The FileInfo.CreateText method creates and opens a file for writing UTF-8 encoded text. If file already exists, this method opens the file.
The following code snippet creates a file using the CreateText method that returns a StreamWriter object. The WriteLine method of SteamLine can be used to add line text to the object and writes to the file.

// Full file name
string fileName = @"C:TempMaheshTXFITx.txt";
FileInfo fi = new FileInfo(fileName);
try
{
	// Check if file already exists. If yes, delete it.
	if (fi.Exists)
	{
		fi.Delete();
	}
	// Create a new file
	using (StreamWriter sw = fi.CreateText())
	{
		sw.WriteLine("New file created: {0}", DateTime.Now.ToString());
		sw.WriteLine("Author: CsharpCanBan.Com");
		sw.WriteLine("Add one more line ");
		sw.WriteLine("Add one more line ");
		sw.WriteLine("Done! ");
	}
	// Write file contents on console.
	using (StreamReader sr = File.OpenText(fileName))
	{
		string s = "";
		while ((s = sr.ReadLine()) != null)
		{
			Console.WriteLine(s);
		}
	}
}
catch (Exception Ex)
{
	Console.WriteLine(Ex.ToString());
}