通过向series1描点的方式加载数据
前端页面
<dxc:ChartControl Name="chart2" BorderThickness="0" HorizontalAlignment="Left" Background="#F0F8FF"><dxc:XYDiagram2D EnableAxisXNavigation="True"><!--X轴--><dxc:XYDiagram2D.AxisX><dxc:AxisX2D Name="axisX2"><dxc:AxisX2D.DateTimeScaleOptions><dxc:ContinuousDateTimeScaleOptions /></dxc:AxisX2D.DateTimeScaleOptions><dxc:AxisX2D.Label><dxc:AxisLabel TextPattern="{}{A:mm:ss}" /></dxc:AxisX2D.Label></dxc:AxisX2D></dxc:XYDiagram2D.AxisX><!--Y轴--><dxc:XYDiagram2D.AxisY><dxc:AxisY2D Interlaced="True"><dxc:AxisY2D.Title><dxc:AxisTitle Content="实际值" /></dxc:AxisY2D.Title></dxc:AxisY2D></dxc:XYDiagram2D.AxisY><!--series1--><dxc:LineSeries2D Name="series1" ArgumentScaleType="DateTime" DisplayName="Iac1"><dxc:LineSeries2D.LineStyle><dxc:LineStyle Thickness="2" /></dxc:LineSeries2D.LineStyle></dxc:LineSeries2D></dxc:XYDiagram2D><!-- 图例 --><dxc:ChartControl.Legend><dxc:LegendHorizontalPosition="Left"VerticalPosition="TopOutside"Orientation="Horizontal" /></dxc:ChartControl.Legend></dxc:ChartControl>
后端绑定数据
//数据库中读取数据DataSet ds = SQLiteHelper.ExecuteDataSet(SQLiteHelper.LocalDbConnectionString, "select * from history_data", CommandType.Text);//转成DataTable接受DataTable dataTableMain = ds.Tables[0];//遍历数据表，向series1描点foreach (DataRow dr in dataTableMain.Rows){var dateTime = Convert.ToDateTime(dr["absTime"]).ToString("HH:mm:ss");double value = Convert.ToDouble(dr["Uac"].ToString());series1.Points.Add(new SeriesPoint(dateTime, value));}//absTime和Uac是数据库中history_dat表的两个字段
