C# ComboBox 下拉框自动匹配笔记

Cool_Breeze

[C#] 纯文本查看 复制代码

using System;
using System.Drawing;
using System.Windows.Forms;

partial class ComboBoxExample : Form
{
    [STAThreadAttribute]
    public static void Main()
    {
        Application.Run(new ComboBoxExample());
    }
}

partial class ComboBoxExample
{
    private ComboBox GradeCbox;
    private Label TipsLbl;
    
    public ComboBoxExample()
    {
        this.Size = new Size(500, 380);
        this.StartPosition = FormStartPosition.CenterScreen;
        
        GradeCbox = new ComboBox();
        GradeCbox.Size = new Size(400, 60);
        GradeCbox.Location = new Point((500-400) / 2, (380-60) / 2);
        GradeCbox.Font = new Font("楷体", 12, FontStyle.Bold);
        GradeCbox.DataSource = new string[]
        {   
            "AutoCompleteMode.Append",
            "AutoCompleteMode.None",
            "AutoCompleteMode.Suggest",
            "AutoCompleteMode.SuggestAppend",
            "AutoCompleteSource.AllSystemSource",
            "AutoCompleteSource.AllUrl",
            "AutoCompleteSource.CustomSource",
            "AutoCompleteSource.FileSystem",
            "AutoCompleteSource.FileSystemDirectories",
            "AutoCompleteSource.HistoryList",
            "AutoCompleteSource.ListItems",
            "AutoCompleteSource.None",
            "AutoCompleteSource.RecentlyUsedList"
        };
        
        // 指定自动匹配数据源
        // GradeCbox.AutoCompleteSource = AutoCompleteSource.CustomSource;
        // GradeCbox.AutoCompleteCustomSource.AddRange(new string[] {"AAA", "BBB", "ABC", "BCA"});
        
        // 指定自己的数据项为自动匹配的数据源
        GradeCbox.AutoCompleteSource = AutoCompleteSource.ListItems;
        
        GradeCbox.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
        
        GradeCbox.SelectedIndexChanged += new EventHandler(GradeCboxSelectIndexChanged);
        // GradeCbox.DropDownStyle = ComboBoxStyle.DropDownList;
        this.Controls.Add(GradeCbox);
        
        TipsLbl = new Label();
        TipsLbl.Text = "未选中";
        TipsLbl.Size = new Size(200, 60);
        TipsLbl.Location = new Point((500-200) / 2, ((380-60) / 2 - 60) / 2);
        TipsLbl.Font = new Font("楷体", 12, FontStyle.Bold);
        this.Controls.Add(TipsLbl);
        
    }
    
    private void GradeCboxSelectIndexChanged(object sender, EventArgs e)
    {
        if (GradeCbox.SelectedIndex != -1)
        {
            TipsLbl.Text = GradeCbox.Items[GradeCbox.SelectedIndex].ToString();
        }
    }
}

kingaero

学习一下

nappywu

6666，我们招人哦，要不要考虑下🤭

Cool_Breeze

nappywu 发表于 2021-6-23 12:42
6666，我们招人哦，要不要考虑下🤭

干什么的？