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  public Form1()
        {
            InitializeComponent();

            var serieItem = this.chart1.Series[0];

            serieItem.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Spline;
           //X轴坐标 值类型为 时间类型
      serieItem.XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Time;
            serieItem.IsValueShownAsLabel = true;
            serieItem.IsXValueIndexed = true;

            DataTable table = GetDataSource();
            DataPoint pointItem = null;
            for (int i = 0; i < table.Rows.Count; i++)
            {
                pointItem = new DataPoint();
                pointItem.SetValueXY(table.Rows[i]["TimeValue"], table.Rows[i]["Value"]);
                serieItem.Points.Add(pointItem);
            }
        }


        DataTable GetDataSource()
        {
            DataTable table = new DataTable();
            table.Columns.Add("Value", typeof(double));
            table.Columns.Add("TimeValue", typeof(DateTime));

            DataRow row = table.NewRow();

            row["Value"] = 45;
            row["TimeValue"] = DateTime.Parse("2010-08-08 9:30");
            table.Rows.Add(row);

            row = table.NewRow();
            row["Value"] = 50;
            row["TimeValue"] = DateTime.Parse("2010-08-08 10:00");
            table.Rows.Add(row);

            row = table.NewRow();
            row["Value"] = 55;
            row["TimeValue"] = DateTime.Parse("2010-08-08 10:30");
            table.Rows.Add(row);

            row = table.NewRow();
            row["Value"] = 45;
            row["TimeValue"] = DateTime.Parse("2010-08-08 11:00");
            table.Rows.Add(row);

            row = table.NewRow();
            row["Value"] = 52;
            row["TimeValue"] = DateTime.Parse("2010-08-08 11:30");
            table.Rows.Add(row);

            row = table.NewRow();
            row["Value"] = 43;
            row["TimeValue"] = DateTime.Parse("2010-08-08 12:00");
            table.Rows.Add(row);

            row = table.NewRow();
            row["Value"] = 60;
            row["TimeValue"] = DateTime.Parse("2010-08-08 12:30");
            table.Rows.Add(row);

            return table;
        }

提示:

  serieItem.XValueType = System.Windows.Forms.DataVisualization.Charting.ChartValueType.Time;
        

这句就是设置 X 轴 值的类型。

posted on 2011-08-19 10:30  薄祥雷  阅读(437)  评论(0编辑  收藏  举报