Question

I googled and found the solution at MSDN.

// Compose a string that consists of three lines.
string lines = "First line.\r\nSecond line.\r\nThird line.";

// Write the string to a file.
System.IO.StreamWriter file = new System.IO.StreamWriter("c:\\test.txt");
file.WriteLine(lines);

file.Close();

How to extend the lines to complex content which including some natural C# code lines.
eg. I want to write the information below to my test.cs file.

Why?
I am parsing a XML schema with C# Console Application. And i want to generate the Console Result to a .cs file during the compiler time.

using System;
using System.Collections.Generic;
using System.Text;

namespace CommonDef
{
    public class CCODEData
    {
        public int iCodeId;
        public string sCode;
        public CODEDType cType;
        public int iOccures;
    }

    [Description("CodeType for XML schema.")]
    public enum CODEDType
    {
        cString = 1,
        cInt = 2,
        cBoolean = 3,
    }

thank you.

Answer 1

If your source code is hardcoded as in your sample, you could use a C# literal string:

string lines = 
@"using System;
using System.Collections.Generic;
using System.Text;

namespace CommonDef
..."

Anyway in such cases it is a better idea (more readable and maintainable) to have the whole text contents into a text file as an embedded resource in your assembly, then read it using GetManifestResourceStream.