C#“在datagridview单元格中输入一些字母时，如何通过建议和追加获取匹配字母单词的列表？

// Step 1: 创建包含所有可能匹配字母单词的列表
List<string> wordList = new List<string>()
{
    "apple", "banana", "cat", "dog", "elephant", "fish"
};

// Step 2: 监听DataGridView的EditingControlShowing事件
dataGridView.EditingControlShowing += DataGridView_EditingControlShowing;

// Step 3: 在EditingControlShowing事件中获取TextBox编辑控件
private void DataGridView_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
    if (e.Control is TextBox textBox)
    {
        // Step 4: 监听TextBox的TextChanged事件
        textBox.TextChanged += TextBox_TextChanged;
    }
}

// Step 5: 在TextChanged事件中获取当前输入的字母并筛选匹配的单词列表
private void TextBox_TextChanged(object sender, EventArgs e)
{
    TextBox textBox = (TextBox)sender;
    string input = textBox.Text.ToLower(); // 转换为小写以进行匹配

    // 使用LINQ查询筛选匹配的单词列表
    var matchedWords = wordList.Where(word => word.StartsWith(input)).ToList();

    // Step 6: 将匹配的单词列表绑定到下拉列表框
    comboBox.DataSource = matchedWords;
}

// Step 7: 监听下拉列表框的SelectedIndexChanged事件，将选择的单词追加到单元格中
private void comboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    string selectedWord = comboBox.SelectedItem.ToString();
    dataGridView.CurrentCell.Value = selectedWord;
}