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Private void listBox1_SelectedIndexChanged(object sender, System. The StreamReader and StreamWriter classes are used for reading from and writing data to text files. StreamWriter address.WriteLine(textBox1.Text) Private void button1_Click(object sender, System.EventArgs e)
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MessageBox.Show("Directory Could Not Be Found") In this article, I have explained about File input/output (I/O) handling operations in C with an example to read, write data to a file and delete or copy the file using C. StreamWriter address = new StreamWriter("addressbook.txt") Īddress.WriteLine(textBox1.Text, textBox2.Text) This post documents my experiences in writing to files. Private void Form1_Load(object sender, EventArgs e) File output can be used by C programs to communicate with other programs written in different programming languages, or with human beings. Any help with what I am missing would be greatly appreciated. The address book writes to the list box, the file is created, but the name and address is not written to the file. I have reviewed my Professor's lecture numerous times, reviewed the text book, searched endlessly online for answers, and tried every reasonable suggested fix out there.