// MAIN FORM using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace PhoneBook { public partial class PhoneBook : Form { public PhoneBook() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //NameLabel.Visible = true; //PhoneLabel.Visible = true; //NameTextBox.Visible = true; //PhoneTextBox.Visible = true; if (NameTextBox.Text.Length == 0 || PhoneTextBox.Text.Length == 0) { MessageBox.Show("Fill name to be added"); } else { FileIO f = new FileIO(); f.name = NameTextBox.Text.ToString(); f.phone = PhoneTextBox.Text.ToString(); f.add(); NameTextBox.Clear(); PhoneTextBox.Clear(); } } private void HandleKeyPress(object sender, KeyPressEventArgs e) { if (!char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar)) { e.Handled = true; } } private void button2_Click(object sender, EventArgs e) { if (SearchNameTextBox.Text.Length == 0) { MessageBox.Show("Fill name to be searched"); } else { FileIO s = new FileIO(); s.name = SearchNameTextBox.Text.ToString(); SearchLabel.Text = s.search(); SearchNameTextBox.Clear(); } } private void Delete_Click(object sender, EventArgs e) { if (DeleteNameTextBox.Text.Length == 0) { MessageBox.Show("Fill name to be deleted"); } else { FileIO d = new FileIO(); d.name = DeleteNameTextBox.Text.ToString(); DeleteLabel.Text = d.delete(); DeleteNameTextBox.Clear(); } } } }