Question

例如，如果你去Facebook并按下双击登录文本框，那么有一些登录以前有人写过。有没有办法在C＃文本框中输入以前输入的下拉列表？我不想要组合框。

Answer 1

请参阅TextBox的TextBox.AutoCompleteMode和TextBox.AutoCompleteSource属性。你需要在以下几行做一些事情：

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        AutoCompleteStringCollection autoComplete = new AutoCompleteStringCollection();
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            autoComplete.Add(textBox1.Text);

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            textBox1.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
            textBox1.AutoCompleteSource = AutoCompleteSource.CustomSource;
            //auto.Add(textBox1.Text);
            textBox1.AutoCompleteCustomSource = autoComplete;
        }
    }
}

请查看以下教程：AutoComplete TextBox In WinForms Windows Forms Application

C＃文本框显示以前的书面文本

1 个答案: