private void button2_Click(object sender, EventArgs e) { For2 f1 = new For2(); this.Hide(); f1.ShowDialog(); this.Close(); }
private void button3_Click(object sender, EventArgs e) { try { string path = @"D:\fileOrganProject\fileOrganProject\bin\Debug\data.txt"; FileStream fs = new FileStream(path, FileMode.Append); StreamWriter sw = new StreamWriter(fs); StringBuilder courseID = new StringBuilder(3); StringBuilder courseName = new StringBuilder(10); StringBuilder instructorName = new StringBuilder(20); StringBuilder numberOfStudents = new StringBuilder(2); courseID.Insert(0, textBox2.Text); instructorName.Insert(0, textBox3.Text); courseName.Insert(0, textBox1.Text); numberOfStudents.Insert(0, textBox4.Text); for (int i = textBox2.Text.Length; i < 3; i++) { courseID.Append('\0'); } sw.Write(courseID.ToString(), 0, 3); for (int i = textBox1.Text.Length; i < 10; i++) { courseName.Append('\0'); } sw.Write(courseName.ToString(), 0, 10); for (int i = textBox3.Text.Length; i < 20; i++) { if (i == 19) { instructorName.Append('\n'); } else if (i == 18) { instructorName.Append('\r'); } else { instructorName.Append('\0'); } } sw.Write(instructorName.ToString(), 0, 20); for (int i = textBox4.Text.Length; i < 2; i++) { numberOfStudents.Append('\0'); } sw.Write(numberOfStudents.ToString(), 0, 2); sw.WriteLine(); x = Convert.ToInt32(textBox4.Text); sw.Close(); For2 f1 = new For2(); this.Hide(); f1.ShowDialog(); this.Close(); }catch (Exception e1) { MessageBox.Show("Sorry There is missing input", "Error"); } }