// 查询
private void Button_Click_1(object sender, RoutedEventArgs e)
{
string strDate = date.Text.ToString();
nowTextBlock.Text = strDate;
nowText = strDate;
DataTable dataTable = new DataTable();
dbTool.getNodeTeperature(strDate, this.node, out dataTable);
// 将dataTable中的temperature加入到datasource
plotter.Children.Remove(graphTemperature);
dataSource = new ObservableDataSource <Point>();
graphTemperature = plotter.AddLineGraph(dataSource, Colors.Green, 2, "结点" + this.node.ToString());
for (int i = 0; i < dataTable.Rows.Count; i++)
{
float temperature = float.Parse(dataTable.Rows[i].ItemArray[1].ToString());
//Console.WriteLine("{0}", temperature);
dataSource.AppendAsync(base.Dispatcher, new Point(i, temperature));
}
}