从文本框C#中搜索匹配关键字的字典

Dictionary<string, string> myDictionary = new Dictionary<string, string>
{
    { "apple", "A fruit" },
    { "banana", "Another fruit" },
    { "cherry", "A sweet fruit" },
    { "date", "A dry fruit" }
};

string keyword = "fruit";
var results = myDictionary.Where(kvp => kvp.Value.Contains(keyword)).ToList();

private void textBoxSearch_TextChanged(object sender, EventArgs e)
{
    string keyword = textBoxSearch.Text;
    var results = myDictionary.Where(kvp => kvp.Value.Contains(keyword)).ToList();
    
    // 更新UI显示结果
    UpdateResultsUI(results);
}

private void UpdateResultsUI(List<KeyValuePair<string, string>> results)
{
    // 这里你可以根据你的UI设计来更新显示结果的控件
    // 例如，清空一个列表框并添加新的结果项
    listBoxResults.Items.Clear();
    foreach (var result in results)
    {
        listBoxResults.Items.Add($"{result.Key}: {result.Value}");
    }
}