61 lines
1.6 KiB
C#
61 lines
1.6 KiB
C#
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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 CreateVisualComponent
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{
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public partial class SelectionComponent : UserControl
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{
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private EventHandler? _changeEvent;
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public ListBox.ObjectCollection Items => listBoxSimple.Items;
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public SelectionComponent()
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{
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InitializeComponent();
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}
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public event EventHandler ChangeEvent
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{
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add
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{
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_changeEvent += value;
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}
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remove
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{
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_changeEvent -= value;
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}
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}
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public string SelectedElement
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{
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get
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{
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return (listBoxSimple.SelectedIndex != -1 && listBoxSimple.SelectedItem != null)
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? listBoxSimple.SelectedItem.ToString()
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: string.Empty;
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}
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set
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{
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if (!string.IsNullOrEmpty(value))
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{
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int index = listBoxSimple.FindString(value);
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if (index == -1) return;
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listBoxSimple.SetSelected(index, true);
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}
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}
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}
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private void ListBoxSimple_SelectedIndexChanged(object sender, EventArgs e)
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{
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_changeEvent?.Invoke(sender, e);
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}
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public void Clear()
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{
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listBoxSimple.Items.Clear();
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}
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}
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}
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