How to separate specific blocks in a text file that have the same name into one file.

[Lorebass]

I am reading through a text file and want to break down specific blocks of text out of that text file and place it into a new text file.

in my file:

MEMBER NAME J20ASDF
//-----text-----
MEMBER NAME J15QWER
//-----text-----
MEMBER NAME J15QWER
//*Comments
//-----text-----
MEMBER NAME J15QWER
//-----text-----
MEMBER NAME K23JGKD
//-----text-----

I want to take the bolded files out and put them into the same separate file.

if (txtFile.Text != "")
            {
                curFile = txtFile.Text;
                StreamReader objReader = new StreamReader(curFile);
                string sLine = "";
                ArrayList arrText = new ArrayList();
                while (sLine != null)
                {
                    sLine = objReader.ReadLine();
                    //if line is not null
                    if (sLine != null)
                    {
                        //if line does not start with //* comments
                        if (!sLine.Contains("//*"))
                        {
                            while (member.Equals(separateJob(sLine)))
                            {
                                if (sLine.Contains("//") || sLine.Contains("MEMBER NAME"))
                                {
                                    sLine = ("\n") + sLine;
                                }
                                arrText.Add(sLine);
                            }
                        }
                        //separateJob(sLine);
                    }
                    //MessageBox.Show(sLine, "Select File", MessageBoxButtons.OK);
                }
                objReader.Close();
                

                foreach (string sOutput in arrText)
                {
                    output += sOutput;  //puts on one line
                }
                //Output to file
                System.IO.File.WriteAllText(@"D:\OutputTest.txt", output); //writes out in one line
                MessageBox.Show(curFile, "Select File", MessageBoxButtons.OK);
            }

I have never really asked a question here before so if im missing anything i'd be glad to post that as well. Mostly here I am lost on the logic. I want to be able to make a separate text file for every member.