C# DevExpress XtraCharts 柱状图条形图同一个Series的Bar显示不同颜色

可以在Chart的CustomDrawSeriesPoint事件中，判断Bar的值，来显示不同的颜色

 1                BarDrawOptions bo = e.SeriesDrawOptions as BarDrawOptions;
 2                 if (bo != null)
 3                 {
 4                     double value = e.SeriesPoint[0];
 5                     if (value == 0)
 6                         bo.Color = Color.FromArgb(102, 168, 9);
 7                     else if (value == 1)
 8                         bo.Color = Color.FromArgb(225, 169, 62);
 9                     else if (value == 2)
10                         bo.Color = Color.FromArgb(152, 28, 23);
11                     else if (value == 3)
12                         bo.Color = Color.FromArgb(255, 0, 255);
13                     else if (value == 4)
14                         bo.Color = Color.FromArgb(43, 145, 175);
15                     else
16                         bo.Color = Color.Black;
17                 }

也可以根据X轴每个Bar的不同名称来显示不同的颜色

 1                 BarDrawOptions bo = e.SeriesDrawOptions as BarDrawOptions;
 2                 if (bo != null)
 3                 {
 4                     string name = e.SeriesPoint.Argument;
 5                     if (name == "ok")
 6                         bo.Color = Color.FromArgb(102, 168, 9);
 7                     else if (name == "warning")
 8                         bo.Color = Color.FromArgb(225, 169, 62);
 9                     else if (name == "critical")
10                         bo.Color = Color.FromArgb(152, 28, 23);
11                     else if (name == "unknown")
12                         bo.Color = Color.FromArgb(255, 0, 255);
13                     else if (name == "pending")
14                         bo.Color = Color.FromArgb(43, 145, 175);
15                 }

该事件不仅能修改颜色，也可以修改PointLable , Legend等内容。比如可以让PointLables同时显示Value及百分比占比

C# DevExpress XtraCharts 柱状图 条形图 同一个Series的Bar显示不同颜色

C# DevExpress XtraCharts 柱状图条形图同一个Series的Bar显示不同颜色