75 lines
1.2 KiB
C#
75 lines
1.2 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.Drawing;
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using System.Data;
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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 VisualCompLib
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{
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public partial class MyDropDownList: UserControl
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{
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public MyDropDownList()
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{
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InitializeComponent();
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}
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public void LoadValues(List<string> Values)
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{
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if (Values.Count == 0)
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{
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return;
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}
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dropDownList.Items.AddRange(Values.ToArray());
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}
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public void Clear()
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{
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dropDownList.Items.Clear();
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}
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public string SelectedValue
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{
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get
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{
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if (dropDownList.Items.Count == 0)
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{
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return "";
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}
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if (dropDownList.SelectedItem == null)
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{
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return "";
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}
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return dropDownList.SelectedItem.ToString();
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}
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set
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{
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if (dropDownList.Items.Contains(value))
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{
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dropDownList.SelectedItem = value;
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}
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}
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}
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private EventHandler onValueChanged;
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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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onValueChanged += value;
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}
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remove
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{
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onValueChanged -= value;
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}
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}
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private void comboBox_SelectedValueChanged(object sender, EventArgs e)
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{
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onValueChanged?.Invoke(sender, e);
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}
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}
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}
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