Question

我有一个柱形图显示数据库中的数据并以％显示。它工作正常但是当它没有返回任何结果时.chart应显示0％但不是0％它显示NaN。想要显示为0％想要在系列标签中显示0％

if (platForms != null)
                        foreach (var platForm in platForms)
                        {
                            DataRow dr = dt.NewRow();
                            dr["Platform"] = platForm;
                            dr["Count"] = GetPlatformCount(temp, platForm);
                            dt.Rows.Add(dr);
                        }

                    chartWorkItemsPlatform.Series["Series1"].ChartType = SeriesChartType.Column;
                    chartWorkItemsPlatform.Series["Series1"].XValueMember = "Platform";
                    chartWorkItemsPlatform.Series["Series1"].YValueMembers = "Count";
                    chartWorkItemsPlatform.Series["Series1"]["DrawingStyle"] = "Emboss";
                    chartWorkItemsPlatform.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;
                    chartWorkItemsPlatform.Series["Series1"].IsValueShownAsLabel = true;
                    chartWorkItemsPlatform.Series["Series1"].IsVisibleInLegend = true;
                    chartWorkItemsPlatform.Series["Series1"].IsXValueIndexed = true;
                    chartWorkItemsPlatform.Series["Series1"].Label = "#PERCENT";

Answer 1

我不知道如何更改柱形图，但如果数据来自数据库，请调整查询以在该列为空时返回0.

在MS柱形图中获得0％的NaN？

1 个答案: