Question

Dev gridcontrol 控件， 某一列Atot的合计值，等于另外两列A1,A2合计值的比值，该如何实现？

Answer 1

double T = (double.Parse(gridView1.Columns["接收量"].SummaryItem.SummaryValue.ToString()) - double.Parse(gridView1.Columns["不良数量"].SummaryItem.SummaryValue.ToString())) / double.Parse(gridView1.Columns["接收量"].SummaryItem.SummaryValue.ToString()) * 100;
gridView1.Columns["实际良率"].SummaryItem.DisplayFormat = T.ToString("0.00");
gridView1.Columns["实际良率"].SummaryItem.FieldName = "实际良率";
gridView1.Columns["实际良率"].SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Custom;