Write and Read Text file usage to AX 2009

static void Jimmy_FileTextIoWriteRead(Args _args)
{
    TextIo              txIoRead,txIoWrite;
    FileIOPermission    fioPermission;
    container           ConData;
    int                 xx,LenData;
    str                 sTempPath,
                        sFileName = "Test_File_IO.txt",
                        sOneRecord;;

    sTempPath = WINAPI::getTempPath();// Get the temporary path.//info("File is at: " + sTempPath + sFileName);
    

    // Assert permission.
    fioPermission = new FileIOPermission(sTempPath + sFileName ,"RW");
    fioPermission.assert();

    // If the test file already exists, delete it.
    if (WINAPI::fileExists(sFileName))
        WINAPI::deleteFile(sTempPath + sFileName);


    // Open a test file for writing.
    // "W" mode overwrites existing content, or creates the file.
    txIoWrite = new TextIo( sTempPath + sFileName ,"W");

    // Write records to the file.
    txIoWrite.write("Start.....");
    txIoWrite.write("Everybody good evening, my name is Xie YuFan and English name is Jimmy, I am come from China, I am a ERP software engineer.  I enjoy my work very much!");
    txIoWrite.write("I hope here to realize more friends around the world.");
    txIoWrite.write("My blog is : http://www.cnblogs.com/Jimmyx/");
    txIoWrite.write("QQ : 332469390");
    txIoWrite.write("end.....");


/***********************************************************/
    
    txIoRead = null;// Close the test file.
    txIoRead = new TextIo(sTempPath + sFileName ,"R");// Open the same file for reading.
    ConData = txIoRead.read(); // Read the entire file into a container.

    
    while (ConData) // Loop through the container of file records.
    {
        sOneRecord  = "";
        LenData     = conLen(ConData);
        
        for (xx=1; xx <= LenData; xx++) // Loop through the token in the current record.
        {
            if (xx > 1) sOneRecord += " ";
            sOneRecord += conPeek(ConData ,xx);
        }
        info(sOneRecord);
        ConData = txIoRead.read();// Read the next record from the container.
    }
   
    txIoRead = null; // Close the test file.
    WINAPI::copyFile(sTempPath + sFileName,@"c:\\" +sFileName,true);

    /*
    if(WINAPI::fileExists(sTempPath + sFileName)) // Delete the test file.
        WINAPI::deleteFile(sTempPath + sFileName);

    revertAssert is not really necessary here,
     because the job (or method) is ending.
    CodeAccessPermission::revertAssert();
    */

}