95 lines
2.3 KiB
C#
95 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Controls
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{
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public partial class CustomComboBox : UserControl
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{
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/// <summary>
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/// Конструктор
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/// </summary>
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public CustomComboBox()
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{
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InitializeComponent();
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}
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/// <summary>
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/// Очищение списка
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/// </summary>
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public void ComboBoxClear()
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{
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comboBoxMain.Items.Clear();
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}
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/// <summary>
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/// Выбранный элемент
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/// </summary>
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public string SelectedItem
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{
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get
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{
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if (comboBoxMain.Items.Count == 0)
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{
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return "";
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}
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if (comboBoxMain.SelectedItem == null)
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{
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return "";
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}
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return comboBoxMain.SelectedItem.ToString()!;
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}
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set
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{
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if (comboBoxMain.Items.Contains(value))
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{
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comboBoxMain.SelectedItem = value;
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}
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}
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}
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/// <summary>
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/// Публичное свойство
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/// </summary>
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public ComboBox.ObjectCollection ComboBoxItems
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{
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get { return comboBoxMain.Items; }
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}
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/// <summary>
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/// Событие, вызываемое при смене значения
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/// </summary>
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private EventHandler _onValueChangedEvent;
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/// <summary>
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/// Событие, вызываемое при смене значения
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/// </summary>
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public event EventHandler ValueChanged
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{
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add
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{
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_onValueChangedEvent += value;
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}
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remove
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{
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_onValueChangedEvent -= value;
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}
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}
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/// <summary>
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/// Смена значения
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/// </summary>
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private void CustomComboBox_SelectedValueChanged(object sender, EventArgs e)
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{
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_onValueChangedEvent?.Invoke(sender, e);
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}
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}
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}
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