以文本方式查看主题 - Foxtable(狐表) (http://foxtable.com/bbs/index.asp) -- 专家坐堂 (http://foxtable.com/bbs/list.asp?boardid=2) ---- 未将对象引用设置到对象的实例 (http://foxtable.com/bbs/dispbbs.asp?boardid=2&id=173965) |
-- 作者:海峰 -- 发布时间:2021/12/24 14:27:00 -- 未将对象引用设置到对象的实例 由窗口按钮命令转移到currentchanged,就提示“未将对象引用设置到对象的实例”,请老师帮忙看看什么问题 Dim Chart As WinForm.Chart \'定义一个图表变量 Dim Series As WinForm.ChartSeries \'定义一个图系变量 Chart= e.Form.Controls("Chart1")
\' 引用窗口中的图表 Chart.DataSource = "叶轮性能数据" \'设置绑定表
Chart.DataFilter = "叶轮型号=\'" & Tables("叶轮型号").current("叶轮型号") &
"\'" Chart.SeriesList.Clear() \'清除图表原来的图系 Series = Chart.SeriesList.Add() \'增加一个图系
Series.Text = "全压" \'设置标题
Series.TooltipText = "流量Q: {#XVAL} m3/h, 全压pf: {#YVAL} Pa"
Chart.AxisX.Text = "流量 m3/h"
Series.X.DataField = "计算后流量" \'X轴绑定到流量列 Chart.AxisY.Text = "全压 Pa" Series.Y.DataField = "计算后全压" \'Y轴绑定到全压列 Series.LineColor = Color.Red
Series.MarkShape = MarkShapeEnum.Box
Series.MarkColor = Color.Green Series = Chart.SeriesList.Add() \'增加第二个图系 Series.Text = "静压" \'设置标题 Series.TooltipText = "流量Q:{#XVAL} m3/h, 静压psf: {#YVAL} Pa" Series.X.DataField = "计算后流量" \'X轴绑定到流量列 Series.Y.DataField = "计算后静压" \'Y轴绑定到静压列 Series.LineColor = Color.DarkCyan Series.MarkShape = MarkShapeEnum.Tri Series.MarkColor = Color.Green Chart.SeriesList(0).FitType =
FitTypeEnum.Spline Chart.SeriesList2.Clear() \'清除图表原来的图系 Series = Chart.SeriesList2.Add()\'增加第二个图系 Series.Text = "轴功率" \'设置标题 Series.TooltipText = "流量Q: {#XVAL} m3/h, 轴功率Pa: {#YVAL} KW" Series.X.DataField = "计算后流量" \'绑定 Series.Y.DataField = "计算后轴功率" \'绑定 Chart.AxisY2.Text = "轴功率 KW" Series.LineColor = Color.Blue Series.MarkShape = MarkShapeEnum.Dot Series.MarkColor = Color.Green Chart.AxisY2.GridMajorVisible = False \'隐藏Y2轴的网格线 Chart.LegendVisible = True \'显示图列 Chart.LegendCompass= CompassEnum.East \'图列显示在右方 Chart.SeriesList(0).FitType =
FitTypeEnum.Spline Chart.SeriesList(1).FitType =
FitTypeEnum.Spline e.Form.Controls("TextBox12").text
= Tables("叶轮性能数据").rows(0)("选定后的叶轮型号") \'显示叶轮型号 e.Form.Controls("TextBox13").text = Tables("叶轮型号").current("叶轮型号") |
-- 作者:有点蓝 -- 发布时间:2021/12/24 14:34:00 -- http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=173937&authorid=0&page=0&star=2 |