关于combobox的问题，请高手指教！

Question

我做了个winform程序，事先将combobox的items与数据库里的一张表的一列绑定，但是这列里项数太多，我想实现在我向combobox中输入内容时下拉菜单能自动弹出，并且下拉菜单里的项能与我输入的内容自动匹配。请高手指教。

Answer 1

DataTable dt = new DataTable();
dt.Columns.Add("Name");
dt.Columns.Add("VV");
dt.Rows.Add(new string[] { "王一", "x" });
dt.Rows.Add(new string[] { "赵一", "z" });
dt.Rows.Add(new string[] { "王二", "y" });
dt.Rows.Add(new string[] { "赵二", "w" });this.comboBox1.DataSource = dt;
this.comboBox1.DisplayMember = "Name";
this.comboBox1.ValueMember = "VV";
this.comboBox1.AutoCompleteSource = AutoCompleteSource.ListItems;
this.comboBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend;

Answer 2

ComboBox.AutoCompleteMode=AutoCompleteMode.Suggest;
ComboBox.AutoCompleteSource=AutoCompleteSource.CustomSource;
ComboBox.AutoCompleteCustomSource=字符串集合。

Answer 3

http://www.codeproject.com/KB/WPF/MultiComboBox.aspx

Answer 4

string cbxText = "";
private void comboBox1_TextChanged(object sender, EventArgs e)
        {
            string temp = comboBox1.Text;
            if (temp.Length > 3 && temp.IndexOf("-").Equals(2))
            {            }
            else
            {
                cbxText = comboBox1.Text;                if (comboBox1.Text.Length == cbxText.Length - 1)
                {
                    this.cbxText = "";
                    this.comboBox1.Text = "";
                }
                else
                {
                    //this.comboBox1.Items.Clear();
                    string sql = "";
                    if (comboBox1.Text != "")
                    {                        sql = string.Format("select  车号编号,车牌号 from 车号表 where 车牌号 like('___{0}%')", this.comboBox1.Text);
                        DataTable dt = db.GetDataTable(sql);
                        this.comboBox1.DroppedDown = true;
                        this.comboBox1.DataSource=dt;
                        this.comboBox1.SelectedIndex = -1;
                        this.comboBox1.DisplayMember = "车牌号";
                        this.comboBox1.ValueMember = "车号编号";
                        
                        comboBox1.Text = cbxText;
                        comboBox1.Select(cbxText.Length, cbxText.Length);
                    }
                }            }        }