PIbd-31_Malafeev.L.S._COP_25/Cop_25/Controls/CustomListBox.cs

using Controls.Exceptions;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Controls
{
    public partial class CustomListBox : UserControl
    {
        /// <summary>
        /// Конструктор по умолчанию
        /// </summary>
        public CustomListBox()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Макет
        /// </summary>
        private string _templateString;

        /// <summary>
        /// Символ начала
        /// </summary>
        private string _startSymbol;

        /// <summary>
        /// Символ конца
        /// </summary>
        private string _endSymbol;

        /// <summary>
        /// Шаблон строки
        /// </summary>
        public void SetTemplateString(string templateString, string startSymbol, string endSymbol)
        {
            if (templateString != "" && startSymbol != "" && endSymbol != "")
            {
                _templateString = templateString;
                _startSymbol = startSymbol;
                _endSymbol = endSymbol;
            }
            else 
            {
                throw new ArgumentNullException("Вы не ввели все значения");
            }
        }

        /// <summary>
        /// Выбранная строка
        /// </summary>
        public int SelectedIndex
        {
            get { return listBoxMain.SelectedIndex; }
            set 
            {
                if (listBoxMain.SelectedIndex != 0)
                {
                    listBoxMain.SelectedIndex = value;
                }
            }
        }

        /// <summary>
        /// Получение обхекта
        /// </summary>
        public T GetObjectFromStr<T>() where T : class, new()
        {
            if (listBoxMain.SelectedIndex == -1)
            {
                return null;
            }
            string row = listBoxMain.SelectedItem.ToString();
            T curObject = new T();
            StringBuilder sb = new StringBuilder(row);
            foreach (var property in typeof(T).GetProperties())
            {
                if (!property.CanWrite)
                {
                    continue;
                }

                int borderOne = sb.ToString().IndexOf(_startSymbol);
                if (borderOne == -1)
                {
                    break;
                }

                int borderTwo = sb.ToString().IndexOf(_endSymbol, borderOne + 1);
                if (borderTwo == -1)
                {
                    break;
                }

                string propertyValue = sb.ToString(borderOne + 1, borderTwo - borderOne - 1);
                sb.Remove(0, borderTwo + 1);
                property.SetValue(curObject, Convert.ChangeType(propertyValue, property.PropertyType));
            }
            return curObject;
        }

        /// <summary>
        /// Заполнение
        /// </summary>
        public void FillProperty<T>(T dataObject, int rowIndex, string propertyName)
        {

            while (listBoxMain.Items.Count <= rowIndex)
            {
                listBoxMain.Items.Add(_templateString);
            }

            string row = listBoxMain.Items[rowIndex].ToString();
            PropertyInfo propertyInfo = dataObject.GetType().GetProperty(propertyName);

            if (propertyInfo != null)
            {
                object propertyValue = propertyInfo.GetValue(dataObject);
                row = row.Replace($"{_startSymbol}{propertyName}{_endSymbol}", propertyValue.ToString());
                listBoxMain.Items[rowIndex] = row;
            }
        }
    }
}