Question

您好，我是该网站的新手，还是编码的新手。

我正在尝试使用Highcharts .net包装器在vb.net中创建一个带有绘图带的基本折线图，但是我编写的用于创建绘图带的代码无法正常工作，但我将其完全转换为（至少我是这样认为的）。 （图表显示时没有绘制带）

我已经成功地根据演示的HTML5和Javascript而不是VB.net用绘图带创建了折线图。

我只想知道我是否缺少什么。到目前为止，这是我的进度：

    Dim chart As New Highcharts
    chart.Title.Text = "Eyecatching Title" '= New Title With {.Text = "title"}
    chart.Chart.Type = ChartType.Line

    chart.Subtitle.Text = "Mandatory subtitle"

    chart.YAxis.Add(New YAxis With {.Title = New YAxisTitle With {.Text = "Arbitrary Automated Number"}})

    chart.Legend.Layout = LegendLayout.Vertical
    chart.Legend.Align = LegendAlign.Right
    chart.Legend.VerticalAlign = LegendVerticalAlign.Middle

    chart.PlotOptions.Series.Label.ConnectorAllowed = False

    Dim xax As New XAxis With {.TickInterval = 1, .Min = 0, .Max = 9, .StartOnTick = False, .EndOnTick = False, .Type = XAxisType.Category}
    xax.Categories.Add("JAN")
    xax.Categories.Add("FEB")
    xax.Categories.Add("MAR")
    xax.Categories.Add("APR")
    xax.Categories.Add("MAY")
    xax.Categories.Add("JUN")
    xax.Categories.Add("JUL")
    xax.Categories.Add("AUG")
    xax.Categories.Add("SEP")
    xax.Categories.Add("OCT")
    xax.Categories.Add("NOV")
    xax.Categories.Add("DEC")

    chart.XAxis.Add(xax)
    chart.XAxis.Item(0) = xax

    Dim sd1 As New LineSeriesData With {.Y = 22} '.X = 1, 
    Dim sd2 As New LineSeriesData With {.Y = 33} '.X = 2, 
    Dim sd3 As New LineSeriesData With {.Y = 44} '.X = 3, 
    Dim sd4 As New LineSeriesData With {.Y = 55} '.X = 4, 
    Dim sd5 As New LineSeriesData With {.Y = 66} '.X = 5, 
    Dim sd6 As New LineSeriesData With {.Y = 33} '.X = 6, 
    Dim sd7 As New LineSeriesData With {.Y = 15} '.X = 7, 
    Dim sd8 As New LineSeriesData With {.Y = 99} '.X = 8, 
    Dim sd9 As New LineSeriesData With {.Y = 63} '.X = 9, 

    Dim s As New LineSeries With {.Name = "Installation"}
    s.Data.Add(sd1)
    s.Data.Add(sd2)
    s.Data.Add(sd3)
    s.Data.Add(sd4)
    s.Data.Add(sd5)
    s.Data.Add(sd6)
    s.Data.Add(sd7)
    s.Data.Add(sd8)
    s.Data.Add(sd9)
    chart.Series.Add(s)
    chart.Credits.Enabled = False

    Dim pb As New XAxisPlotBands With {.Color = "#F00", .From = "2", .To = "4"}

    xax.PlotBands.Add(pb)

Answer 1

为了使其正常工作，您需要启动chart.XAxis和chart.XAxis.PlotBands列表，然后才能开始添加它们的项目。之后，您应该可以呼叫chart.XAxis.Add(xax)和xax.PlotBands.Add(pb)。

var xax = new XAxis { TickInterval = 1, Min = 0, Max = 9, StartOnTick = false, EndOnTick = false, Type = XAxisType.Linear };
chart.XAxis = new List<XAxis> { xax };

var pbx = new XAxisPlotBands { Color = "#F00FFF", From = 2, To = 5, Label = new XAxisPlotBandsLabel { Text = "I'm plot band label" } };
xax.PlotBands = new List<XAxisPlotBands> { pbx };

如果有帮助，我可以通过电子邮件或一些托管服务将工作项目发送给您。

亲切的问候！

Highcharts .net包装器中的图带不显示

1 个答案: