wpf - 在 wpf 中将图表值与数据库绑定

Question

我想在 WPF 中创建一个 LineSeries 图表，我想将图表与数据库“温度”和“天”中的两个值绑定我认为下面的代码是准确的，但如果有任何人可以帮助我，我将不胜感激太多了 ..

private void combobox2_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    string Value = combobox2.SelectedItem.ToString();
    SQLiteConnection cnn = new SQLiteConnection("Data Source = MyDB.sqlite");
    cnn.Open();
    SQLiteCommand cmd = new SQLiteCommand("select * from weather1 where Town=@value ", cnn);
    cmd.Parameters.AddWithValue("@value", Value);
    List<string> temp = new List<string>();
    List<string> day = new List<string>();
    KeyValuePair<object, object> oops = new KeyValuePair<object, object>();

    SQLiteDataReader sr = cmd.ExecuteReader();

    while (sr.Read())
    {
        temp.Add(sr["temperature"].ToString());
        day.Add(sr["day"].ToString());
    }

    oops = new KeyValuePair<object, object>(temp, day);
    ((LineSeries)Chart2.Series[0]).ItemsSource = oops.ToString();
    cnn.Close();
}