Vb.net chart: how to get axisx.customlabels in sync with axisx.majortickmark

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As shown in the code, I get CustomLabels displayed, but they are not on the MajorTickMarks defined in the ChartArea. How do I get this in sync?

VB.NET

Dim from_X, to_X As Date
from_X = myClass.get_DateOfWeek(CInt(yearkNo), CInt(weekNo), DayOfWeek.Monday)
'Last week from mainTable
weekNo = mainTable.Columns(mainTable.Columns.Count - 1).ColumnName.Split(CChar("/"))(0).Substring(2, 2)
yearkNo = mainTable.Columns(mainTable.Columns.Count - 1).ColumnName.Split(CChar("/"))(1).Substring(0, 4)
to_X = myClass.get_DateOfWeek(CInt(yearkNo), CInt(weekNo), DayOfWeek.Saturday)

Dim ints as integer = CInt(DateDiff(DateInterval.WeekOfYear, from_X, to_X, FirstDayOfWeek.Monday, FirstWeekOfYear.FirstFullWeek))
Dim xdate(ints) As Date 'is looped through and the date of the respective week is added.

newchart(chart1) 'create new chart
Dim chartArea1 As New ChartArea("Default")
chart1.ChartAreas.Add(chartArea1)

chart1.ChartAreas("Default").AxisX.IntervalType = DateTimeIntervalType.Weeks
chart1.ChartAreas("Default").AxisX.Interval = 1
chart1.ChartAreas("Default").AxisX.LabelAutoFitStyle = LabelAutoFitStyles.DecreaseFont
chart1.ChartAreas("Default").AxisX.LabelAutoFitMinFontSize = 7
chart1.ChartAreas("Default").AxisX.LabelStyle.Font = My.Settings.fontbold8
chart1.ChartAreas("Default").AxisX.LabelStyle.Angle = 90
chart1.ChartAreas("Default").AxisX.MajorTickMark.Enabled = True
chart1.ChartAreas("Default").AxisX.MinorTickMark.Enabled = False
chart1.ChartAreas("Default").AxisX.Minimum = from_X.ToOADate()'44443
chart1.ChartAreas("Default").AxisX.Maximum = to_X.ToOADate()'44828
chart1.ChartAreas("Default").AxisX.IsMarginVisible = False

chart1.Series.Add("K").Color = ColorTranslator.FromHtml("#297AB7") 'MattBlau colorx(0)
chart1.Series("K").Points.DataBindXY(xdate, yValues)

chart1.ChartAreas("Default").AxisX.CustomLabels.Clear()
For intVal As Integer = 0 To ints - 1
	Debug.Print(intVal & " - " & Format(xdate(intVal), "yyyy-MM-dd"))
	Select Case intVal
		Case 0, 5, 10, 15, 20, ints - 2
			chart1.ChartAreas("Default").AxisX.CustomLabels.Add(xdate(intVal).ToOADate(), xdate(ints - 1).ToOADate(), myClass.get_WeekNumber(xdate(intVal)) & "/" & xdate(intVal).Year)
	End Select
Next

What I have tried:

My current result looks like here in the picture:
AxisX.MajorTickMarks and AxisX.CustomLabels

Posted 17-May-22 2:03am

JTrum

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JTrum · Accepted Answer · 2022-05-19T02:57:00

Found now a solution for me: AxisX.IntervalType, AxisX.Minimum, AxisX.Maximum must match the series DataBindXY(xValues, yValues)

VB.NET

Dim ints as integer = CInt(DateDiff(DateInterval.WeekOfYear, von_X, bis_X, _
  FirstDayOfWeek.Monday, FirstWeekOfYear.FirstFullWeek))
Dim xdate(ints) As Date 'is looped through and the date of the respective week is added.
Dim xInt(ints) As Integer 'is looped through and the numbers of the interval-count added.
 
chart1.ChartAreas("Default").AxisX.IntervalType = DateTimeIntervalType.NotSet
chart1.ChartAreas("Default").AxisX.Interval = 1
chart1.ChartAreas("Default").AxisX.Minimum = 0
chart1.ChartAreas("Default").AxisX.Maximum = ints - 1
 
chart1.ChartAreas("Default").AxisX.CustomLabels.Clear()
For intVal As Integer = 0 To ints - 1
Dim kw_run As String = ""
kw_run = myClass.set_WeekFormat(myClass.get_WeekNumber(xdate(intVal)), xdate( _
  intVal), True)
'result looks like: 2022/20
chart1.ChartAreas("Default").AxisX.CustomLabels.Add(intVal, intVal + 1, kw_run, _
  0, LabelMarkStyle.None)
Next
 
'Series
chart1.Series("mySeries").Points.DataBindXY(xInt, yValues)

'...