[DevExpress]ChartControl之自定义Tooltip示例

关键代码：

        /// <summary>
        /// 自定义ChartControl的Tooltip
        /// </summary>
        /// <param name="chart">ChartControl</param>
        /// <param name="e">MouseEventArgs</param>
        /// <param name="tooltip">ToolTipController</param>
        /// <param name="tooltipTitle">ToolTipController的Title</param>
        /// <param name="paramter">委托</param>
        public static void CustomToolTip(this ChartControl chart, MouseEventArgs e, ToolTipController tooltip, string tooltipTitle, System.Func<string, double[], string> paramter)
        {
            ChartHitInfo _hitInfo = chart.CalcHitInfo(e.X, e.Y);
            SeriesPoint _point = _hitInfo.SeriesPoint;
            if (_point != null)
            {
                string _msg = paramter(_point.Argument, _point.Values);
                tooltip.ShowHint(_msg, tooltipTitle);
            }
            else
            {
                tooltip.HideHint();
            }
        }

使用代码：

        private void chartControl1_MouseMove(object sender, MouseEventArgs e)
        {
            ChartControl _curChart = sender as ChartControl;
            _curChart.CustomToolTip(e, toolTipController1, "交易详情", (agr, values) =>
            {
                return string.Format("时间：{0}\r\n金额:{1}", agr, values[0]);
            });
        }

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

运行效果：