C# ComboBox 下拉框自动匹配笔记

Cool_Breeze 发表于 2021-6-15 11:36

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

partial class ComboBoxExample : Form
{

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.ToString();
   }
}
}

kingaero 发表于 2021-6-15 14:10

学习一下

nappywu 发表于 2021-6-23 12:42

6666，我们招人哦，要不要考虑下🤭

Cool_Breeze 发表于 2021-6-23 18:04

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？

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C# ComboBox 下拉框自动匹配笔记