图表区X轴时间显示无变化

菜鸟飞得好难 2015-03-17 11:06:34

X轴时间显示没有变化,

代码如下,







 chart1.ChartAreas.Clear();

            chart1.Series.Clear();

            chart1.Annotations.Clear();

            chart1.Legends.Clear();

            chart1.Titles.Clear();

            ChartArea cha = new ChartArea("cha");

            cha.AxisX.IntervalType = DateTimeIntervalType.Minutes;

            cha.AxisX.Interval = 10;

            cha.AxisX.IntervalAutoMode = IntervalAutoMode.VariableCount;

           // cha.AxisX.IntervalOffsetType = DateTimeIntervalType.Hours;

            cha.AxisX.LabelStyle.Format = "HH:MM";

         //   cha.AxisX.Minimum = Convert.ToDateTime(StartTimeInput.Text).ToOADate();

            cha.AxisX.Minimum = DateTime.Parse("2014-02-20 5:13:03").ToOADate();

           // Convert.ToDateTime(

         //   cha.AxisX.Maximum = Convert.ToDateTime(EndTimeInput.Text).ToOADate();

            cha.AxisX.Maximum = DateTime.Parse("2014-02-20 7:13:03").ToOADate();

            cha.AxisX.MajorGrid.IntervalType =DateTimeIntervalType.Hours;

            cha.AxisX.MajorGrid.Interval = 5;

            cha.AxisX.MajorGrid.Enabled = true;//隐藏竖线



            cha.AxisY.Interval = 10;

            cha.AxisY.IntervalOffset = 10;

            cha.AxisY.IntervalOffsetType = DateTimeIntervalType.Number;

            cha.AxisY.IntervalType = DateTimeIntervalType.Number;

            cha.AxisY.Minimum = -30;

            cha.AxisY.Maximum = 30;

            chart1.ChartAreas.Add(cha);

            Series t1 = new Series("t1");

            t1.ChartType = SeriesChartType.Spline;

            //t1.XValueType = ChartValueType.DateTime;



            // series1.ChartType = SeriesChartType.Line;

            t1.Name = "温度1";

            t1.BorderWidth = 2;

            t1.ShadowColor = System.Drawing.Color.Black;  //阴影颜色

            t1.ShadowOffset = 1;

            // series1.BorderColor = this.ChartColorsList[index].SeriesBorderColor;

            //系列上点的大小

            t1.MarkerSize = 5;

            //系列上点的形状

            t1.MarkerStyle = MarkerStyle.Circle;

            // Set point labels

            t1.IsValueShownAsLabel = false;

            //系列的X值的类型

            t1.XValueType = ChartValueType.Time;

            //系列的Y值的类型

            t1.YValueType = ChartValueType.Double;

            //系列的刻度值

            // series1.Legend = chart1.Legends[0].Name;



            //系列的图标区域

            // series1.ChartArea = chart1.ChartAreas[0].Name;



            t1.MarkerColor = Color.FromArgb(243, 90, 3);

            t1.Color = Color.FromArgb(255, 144, 0);

            DateTime dt;

            dt = DateTime.Parse("2014-2-20  6:13:03");



            t1.Points.AddXY(dt, 26);

            chart1.Series.Add(t1);