DevExpress之ChartControl实现时间轴实例

本文实例讲述了DevExpress采用ChartControl实现时间轴的方法，分享给大家供大家参考。具体实现方法如下：

关键代码如下：

using System.Data;
using System.Windows.Forms;
using DevExpress.XtraCharts;

namespace DevExpressChart
{
    public partial class winDateTime : Form
    {
        public winDateTime()
        {
            InitializeComponent();
        }

        private void winDateTime_Load(object sender, EventArgs e)
        {
            BuilderDevChart();
        }
        private DataTable CreateChartData()
        {
            DataTable table = new DataTable("Table1");
            table.Columns.Add("Date", typeof(DateTime));
            table.Columns.Add("Value", typeof(Int32));
            table.Rows.Add(new object[] { new DateTime(2014, 5, 21), 10 });
            table.Rows.Add(new object[] { new DateTime(2014, 6, 22), 20 });
            table.Rows.Add(new object[] { new DateTime(2014, 7, 23), 40 });
            table.Rows.Add(new object[] { new DateTime(2014, 8, 24), 20 });
            table.Rows.Add(new object[] { new DateTime(2014, 9, 25), 30 });
            return table;
        }
        private void BuilderDevChart()
        {
            Series _lineSeries = new Series("利润", ViewType.Line);
            _lineSeries.ArgumentScaleType = ScaleType.DateTime;
            _lineSeries.ArgumentDataMember = "Date";
            _lineSeries.ValueDataMembers[0] = "Value";
            _lineSeries.DataSource = CreateChartData();
            chartControl1.Series.Add(_lineSeries);

            chartControl1.SetTimeAxisX(DateTimeMeasurementUnit.Month, DateTimeMeasurementUnit.Month, "yyyy-MM");
            //---------------------------------------------------------------

            //_lineSeries.ValueScaleType = ScaleType.DateTime;
            //_lineSeries.ArgumentDataMember = "Value";
            //_lineSeries.ValueDataMembers[0] = "Date";
            //_lineSeries.DataSource = CreateChartData();
            //chartControl1.Series.Add(_lineSeries);

            //XYDiagram _diagram = (XYDiagram)chartControl1.Diagram;
            //_diagram.AxisY.DateTimeMeasureUnit = DateTimeMeasurementUnit.Month;
            //_diagram.AxisY.DateTimeGridAlignment = DateTimeMeasurementUnit.Month;
            //_diagram.AxisY.DateTimeOptions.Format = DateTimeFormat.Custom;
            //_diagram.AxisY.DateTimeOptions.FormatString = "MMMM";
        }
    }
}</div>

using DevExpress.XtraCharts;

namespace DevExpressChart
{
    public static class ChartUtils
    {
        /// <summary>
        /// 增加数据筛选
        /// </summary>
        /// <param name="SeriesBase">Series</param>
        /// <param name="columnName">列名称</param>
        /// <param name="value">列名称对应的筛选数值</param>
        /// <param name="dataFilterCondition">DataFilterCondition枚举</param>
        public static void AddDataFilter(this SeriesBase series, string columnName, object value, DataFilterCondition dataFilterCondition)
        {
            series.DataFilters.Add(new DataFilter(columnName, value.GetType().FullName, dataFilterCondition, value));
        }

        /// <summary>
        /// 设置X轴Lable角度
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="angle">角度</param>
        public static void SetXLableAngle(this ChartControl chart, int angle)
        {
            XYDiagram _xyDiagram = (XYDiagram)chart.Diagram;
            if (_xyDiagram != null)
                _xyDiagram.AxisX.Label.Angle = angle;
        }
        /// <summary>
        ///  设置Y轴Lable角度
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="angl