SearchContactForm

/*
 * Created by SharpDevelop.
 * User: Admin
 * Date: 9.6.2021 г.
 * Time: 9:58
 *
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Linq;
using System.Collections.Generic;
using System.IO;

namespace addressBook_11a
{
    /// <summary>
    /// Description of SearchForm.
    /// </summary>
    public partial class SearchForm : Form
    {

        List<Contact> allContacts = new List<Contact>();

        public SearchForm()
        {
            //
            // The InitializeComponent() call is required for Windows Forms designer support.
            //
            InitializeComponent();

            //
            // TODO: Add constructor code after the InitializeComponent() call.
            //
        }
        void SearchFormLoad(object sender, EventArgs e)
        {
            var contactsInfo=File.ReadAllLines("contacts.csv");
            foreach (var element in contactsInfo)
            {
                string name = element.Split(',')[0];
                string phone = element.Split(',')[1];
                string email = element.Split(',')[2];

                var newContact = new Contact(name, phone, email);

                allContacts.Add(newContact);
            }
        }
        void TextBoxSearchTextChanged(object sender, EventArgs e)
        {
            string userSearch = textBoxSearch.Text;
            string searchType = comboBoxSearchType.Text;
            string result = "";
            List<Contact> filtered=new List<Contact>();

            if (searchType == "")
            {
                MessageBox.Show("Изберете тип на търсене");
                return;
            }

            if (searchType == "по име")
            {
                filtered = allContacts
                    .Where(c => c.Name.ToLower()
                           .Contains(userSearch.ToLower()))
                    .ToList();
            }

            if (searchType == "по e-mail")
            {
                filtered = allContacts
                    .Where(c => c.Email.Contains(userSearch))
                    .ToList();
            }

            if (searchType == "по телефон")
            {
                filtered = allContacts
                    .Where(c => c.Phone.StartsWith(userSearch))
                    .ToList();
            }


            foreach (var element in filtered)
            {
                result += element.ToString();
            }

            richTextBoxResult.Text = result;

        }
        void ComboBoxSearchTypeSelectedIndexChanged(object sender, EventArgs e)
        {
            richTextBoxResult.Text="";
        }
    }
}