Align series by value in DevExpress XtraCharts - devexpress-windows-ui

Question

I have a DevExpress XtraChart object with several series, all of type: line.
I have a requirement from a client to align the series by the max value of each series. This is without regard to the attached axis, has anyone done this before?

Answer 1

Although I was interested in displaying this on the chart element, the 'work' was done on the underlying DataSet.
I was able to achieve this by looping through the series collection, deriving the max value of the first series, through a SQL query, and then each subsequent series, and noting the difference, and then adding or subtracting the difference at the DataSet level.
Here's the code:
Private Sub cbAlignPeaks_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cbAlignPeaks.CheckedChanged
Dim dt As DataTable = chart.DataSource
Dim Row() As Data.DataRow
Dim s As Series = Nothing
Dim dtr As DataTableReader = Nothing
Dim maxTimeGet, maxTimeSet, diff As Decimal
Me.Cursor = Cursors.WaitCursor
If cbAlignPeaksPre.Checked Then
For i As Integer = 0 To chartPreTim.Series.Count - 1
s = chartPreTim.Series(i)
If _offsets.Count = chartPreTim.Series.Count - 1 Then
If i > 0 Then
diff = _offsets(s.DataFilters(0).Value)
Row = dt.Select("BORING_NAME = '" & s.Name & "'")
For k As Integer = 0 To Row.Count - 1
Row(k)("TIME_SEC") = Row(k)("TIME_SEC") + diff
Next
End If
Else
If i = 0 Then 'get adjustment info
dtr = getDetectorMax(s.DataFilters(0).Value, cbDetectors.Text, timType.PRE) ' <-- getDetectorMax runs a SQL query returning the max value
If dtr.Read Then
maxTimeGet = dtr("TIME_SEC")
End If
Else 'set adjustment info
dtr = Nothing
dtr = getDetectorMax(s.DataFilters(0).Value, cbDetectors.Text, timType.PRE)
If dtr.Read Then
maxTimeSet = dtr("TIME_SEC")
End If
If maxTimeGet > maxTimeSet Then
diff = maxTimeGet - maxTimeSet
_offsets.Add(s.DataFilters(0).Value, diff)
Row = dt.Select("BORING_NAME = '" & s.DataFilters(0).Value & "'")
For k As Integer = 0 To Row.Count - 1
Row(k)("TIME_SEC") = Row(k)("TIME_SEC") + diff
Next
Else
diff = maxTimeSet - maxTimeGet
_offsets.Add(s.DataFilters(0).Value, diff * -1)
Row = dt.Select("BORING_NAME = '" & s.DataFilters(0).Value & "'")
For k As Integer = 0 To Row.Count - 1
Row(k)("TIME_SEC") = Row(k)("TIME_SEC") - diff
Next
End If
End If
End If
Next
Else
For i As Integer = 1 To chartPreTim.Series.Count - 1 ' We skip item 0 as that's the baseline
s = chartPreTim.Series(i)
diff = _offsets(s.DataFilters(0).Value)
Row = dt.Select("BORING_NAME = '" & s.DataFilters(0).Value & "'")
For k As Integer = 0 To Row.Count - 1
Row(k)("TIME_SEC") = Row(k)("TIME_SEC") - diff
Next
Next
End If
chartPreTim.RefreshData()
chartPreTim.Refresh()
Me.Cursor = Cursors.Default
End Sub