SpreadChart chart = this.fpSpread1_Sheet1.Charts[0];
ChartDataSetting dataSetting = new ChartDataSetting(EmptyValueStyle.Zero, true);
chart.DataSetting = dataSetting;
//chart.DataSetting.EmptyValueStyle = EmptyValueStyle.Zero;
//chart.DataSetting.ShowHiddenData = true;
Dim chart As New FarPoint.Win.Spread.Chart.SpreadChart(GetType(FarPoint.Win.Chart.BarSeries))
Dim dataSetting As New FarPoint.Win.Spread.Chart.ChartDataSetting(FarPoint.Win.Spread.Chart.EmptyValueStyle.Zero, True)
chart.DataSetting = dataSetting
fpSpread1.Sheets(0).AddChart(chart, 0, 0)
'chart.DataSetting.EmptyValueStyle = FarPoint.Win.Spread.Chart.EmptyValueStyle.Zero
'chart.DataSetting.ShowHiddenData = True