To set Colors to each column in ColumnChart in NPOI package about npoi HOT 1 CLOSED

byte[][] colors = new byte[][] {
  new byte[] {127,(byte)255, 127},
  new byte[] {(byte)200, (byte)200, (byte)200},
  new byte[] {(byte)255,(byte)255, 127},
  new byte[] {(byte)255, 127, 127},
  new byte[] {(byte)255, 0, 0},
  new byte[] {0, (byte)255, 0},
  new byte[] {0, 0, (byte)255},
  new byte[] {80, 80, 80},
  new byte[] {90, 80, 80},
  new byte[] {100, 80, 80}
};

int pointCount = serie.GetCategoryAxisData().PointCount;

var plotArea = chart.GetCTChart().plotArea;
plotArea.barChart[0].ser[0].dPt = new System.Collections.Generic.List<NPOI.OpenXmlFormats.Dml.Chart.CT_DPt>();

for (int i = 0; i < pointCount; i++)
{
    plotArea.barChart[0].ser[0].dPt.Add(new NPOI.OpenXmlFormats.Dml.Chart.CT_DPt());
    plotArea.barChart[0].ser[0].dPt[i].idx = new NPOI.OpenXmlFormats.Dml.Chart.CT_UnsignedInt() { val = (uint)i};
    plotArea.barChart[0].ser[0].dPt[i].spPr = new NPOI.OpenXmlFormats.Dml.Chart.CT_ShapeProperties();
    plotArea.barChart[0].ser[0].dPt[i].spPr.AddNewSolidFill().AddNewSrgbClr().val = colors[i];
}