Hello everyone,
I am currently using the nevron chart components in VB .NET and I was trying to apply the exmaple (All Examples -> Interactivity -> Tools -> Axis Scroll Tool), this is a 2D Chart with 2 Panels, each panel having its own Y-Axis but a shared X-Axis. In the example the zooming of both charts should be limited only to the X-Axis ( this works perfectly as long as the zooming tool animation is enabled  ( nDataZoomTool.AnimateZooming= true), however once the animation is disabled the zooming behavior will not function properly.

If zooming is done in chart 1 the y-axis visible range for chart 1 remains the same but the y-axis visible range for chart 2 is not the same anymore. And vice versa.

Is there a way to fix this behaviour when the AnimateZooming option is set to false.

Thanks in advance for your help.

Hi Joerg,

Can you post the code you're using to configure the chart, or better a project that replicates this as this looks like a complex chart configuration and it is difficult to spot a problem from a description only.

Best Regards,
Nevron Support Team

Hello,
Thanks alot for your quick repsonse, I copied the code from the example provided in Nevron charts:

If (m_DataZoomTool.AnimateZooming) is set to true, zooming for both axes works fine, if it is, however, set to false the zooming on the x-axis works fine, but somehow, one of the y-axes will be zoomed along with it.

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Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.Drawing
Imports System.Data
Imports System.Windows.Forms
Imports Nevron.Dom
Imports Nevron.GraphicsCore
Imports Nevron.Editors
Imports Nevron.Chart
Imports Nevron.Chart.WinForm
Imports Nevron.Chart.Windows

Namespace Nevron.Examples.Chart.WinForm
<ToolboxItem(False)> _
Public Class NAxisScrollToolUC
Inherits NExampleBaseUC

Private components As System.ComponentModel.Container = Nothing
Private m_ChartStockValues As NCartesianChart
Private m_ChartStockVolumes As NCartesianChart
Private m_Stock As NStockSeries
Private m_Volume As NBarSeries
Private m_DataZoomTool As NDataZoomTool
Private m_AxisScrollTool As NAxisScrollTool

Private label1 As System.Windows.Forms.Label
Private WithEvents AnimateZoomingCheckBox As Nevron.UI.WinForm.Controls.NCheckBox
Private WithEvents PagingViewResetModeComboBox As Nevron.UI.WinForm.Controls.NComboBox

Public Sub New()
InitializeComponent()
End Sub

/// <summary>
/// Clean up any resources being used.
/// </summary>
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If components IsNot Nothing Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
#Region `$:1`
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
Private Sub InitializeComponent()
Me.label1 = New System.Windows.Forms.Label()
Me.PagingViewResetModeComboBox = New Nevron.UI.WinForm.Controls.NComboBox()
Me.AnimateZoomingCheckBox = New Nevron.UI.WinForm.Controls.NCheckBox()
Me.SuspendLayout()
'
' label1
'
Me.label1.Location = New System.Drawing.Point(8, 8)
Me.label1.Name = "label1"
Me.label1.Size = New System.Drawing.Size(144, 23)
Me.label1.TabIndex = 0
Me.label1.Text = "Paging View Reset Mode:"
'
' PagingViewResetModeComboBox
'
Me.PagingViewResetModeComboBox.ListProperties.CheckBoxDataMember = ""
Me.PagingViewResetModeComboBox.ListProperties.DataSource = Nothing
Me.PagingViewResetModeComboBox.ListProperties.DisplayMember = ""
Me.PagingViewResetModeComboBox.Location = New System.Drawing.Point(8, 26)
Me.PagingViewResetModeComboBox.Name = "PagingViewResetModeComboBox"
Me.PagingViewResetModeComboBox.Size = New System.Drawing.Size(160, 21)
Me.PagingViewResetModeComboBox.TabIndex = 1
'INSTANT VB NOTE: The following InitializeComponent event wireup was converted to a 'Handles' clause:
'ORIGINAL LINE: this.PagingViewResetModeComboBox.SelectedIndexChanged += new System.EventHandler(this.PagingViewResetModeComboBox_SelectedIndexChanged);
'
' AnimateZoomingCheckBox
'
Me.AnimateZoomingCheckBox.ButtonProperties.BorderOffset = 2
Me.AnimateZoomingCheckBox.Location = New System.Drawing.Point(11, 53)
Me.AnimateZoomingCheckBox.Name = "AnimateZoomingCheckBox"
Me.AnimateZoomingCheckBox.Size = New System.Drawing.Size(141, 24)
Me.AnimateZoomingCheckBox.TabIndex = 12
Me.AnimateZoomingCheckBox.Text = "Animate Zooming"
'INSTANT VB NOTE: The following InitializeComponent event wireup was converted to a 'Handles' clause:
'ORIGINAL LINE: this.AnimateZoomingCheckBox.CheckedChanged += new System.EventHandler(this.AnimateZoomingCheckBox_CheckedChanged);
'
' NAxisScrollToolUC
'
Me.Controls.Add(Me.AnimateZoomingCheckBox)
Me.Controls.Add(Me.PagingViewResetModeComboBox)
Me.Controls.Add(Me.label1)
Me.Name = "NAxisScrollToolUC"
Me.Size = New System.Drawing.Size(180, 200)
Me.ResumeLayout(False)

End Sub
#End Region

Public Overrides Sub Initialize()
MyBase.Initialize()

' disable the legend
nChartControl1.Legends(0).Mode = LegendMode.Disabled

' set a chart title
Dim title As NLabel = nChartControl1.Labels.AddHeader("Axis Scroll Tool")
title.TextStyle.FontStyle = New NFontStyle("Times New Roman", 18, FontStyle.Italic)
title.ContentAlignment = ContentAlignment.BottomCenter
title.Location = New NPointL(New NLength(50, NRelativeUnit.ParentPercentage), New NLength(2, NRelativeUnit.ParentPercentage))

' configure stock and volume charts
ConfigureStockValuesChart()
ConfigureStockVolumesChart()

' Configure axes
ConfigureAxes()

' configure cursors
ConfigureAxisCursors()

' configure range selections
ConfigureRangeSelections()

' add a guide line on the left
Dim guideLine As New NSideGuideline(PanelSide.Left)

guideLine.Targets.Add(m_ChartStockValues)
guideLine.Targets.Add(m_ChartStockVolumes)

nChartControl1.document.RootPanel.Guidelines.Add(guideLine)

' configure interactivity
m_DataZoomTool = New NDataZoomTool()
m_DataZoomTool.AlwaysZoomIn = False

m_AxisScrollTool = New NAxisScrollTool()

nChartControl1.Controller.Tools.Add(New NPanelSelectorTool())
nChartControl1.Controller.Tools.Add(New NDataCursorTool())
nChartControl1.Controller.Tools.Add(m_AxisScrollTool)
nChartControl1.Controller.Tools.Add(m_DataZoomTool)

PagingViewResetModeComboBox.FillFromEnum(GetType(PagingViewResetMode))
PagingViewResetModeComboBox.SelectedIndex = 0
End Sub

Private Sub ConfigureStockValuesChart()
m_ChartStockValues = CType(nChartControl1.Charts(0), NCartesianChart)

m_ChartStockValues.Location = New NPointL(New NLength(7, NRelativeUnit.ParentPercentage), New NLength(15, NRelativeUnit.ParentPercentage))
m_ChartStockValues.Size = New NSizeL(New NLength(84, NRelativeUnit.ParentPercentage), New NLength(35, NRelativeUnit.ParentPercentage))
m_ChartStockValues.BoundsMode = BoundsMode.Stretch
m_ChartStockValues.Wall(ChartWallType.Back).FillStyle = New NGradientFillStyle(GradientStyle.Horizontal, GradientVariant.Variant1, Color.White, Color.FromArgb(230, 230, 230))

' setup Y axis
Dim scaleY As New NLinearScaleConfigurator()
scaleY.MajorGridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleY.InnerMajorTickStyle.Visible = False
m_ChartStockValues.Axis(StandardAxis.PrimaryY).ScaleConfigurator = scaleY

' setup X axis
Dim scaleX As New NValueTimelineScaleConfigurator()
scaleX.FirstRow.GridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleX.FirstRow.GridStyle.LineStyle = New NStrokeStyle(1, Color.FromArgb(225, 225, 225))
scaleX.FirstRow.UseGridStyle = True
scaleX.FirstRow.InnerTickStyle.Visible = False
scaleX.SecondRow.GridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleX.SecondRow.GridStyle.LineStyle = New NStrokeStyle(1, Color.FromArgb(215, 215, 215))
scaleX.SecondRow.UseGridStyle = True
scaleX.SecondRow.InnerTickStyle.Visible = False
scaleX.ThirdRow.GridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleX.ThirdRow.GridStyle.LineStyle = New NStrokeStyle(1, Color.FromArgb(205, 205, 205))
scaleX.ThirdRow.UseGridStyle = True
scaleX.ThirdRow.InnerTickStyle.Visible = False
m_ChartStockValues.Axis(StandardAxis.PrimaryX).ScaleConfigurator = scaleX

' create stock series
m_Stock = CType(m_ChartStockValues.Series.Add(SeriesType.Stock), NStockSeries)
m_Stock.Name = "Stock Prices"
m_Stock.UpFillStyle = New NColorFillStyle(Color.FromArgb(149, 171, 238))
m_Stock.UpStrokeStyle.Color = Color.RoyalBlue
m_Stock.DownFillStyle = New NColorFillStyle(Color.White)
m_Stock.DownStrokeStyle.Color = Color.RoyalBlue
m_Stock.HighLowStrokeStyle.Color = Color.RoyalBlue
m_Stock.InflateMargins = True
m_Stock.UseXValues = True
m_Stock.CandleWidth = New NLength(1.6F, NRelativeUnit.ParentPercentage)

' show the date time value in the legend
m_Stock.Legend.Format = "<xvalue>"
m_Stock.XValues.ValueFormatter = New NDateTimeValueFormatter(DateTimeValueFormat.Date)
m_Stock.Legend.Mode = SeriesLegendMode.DataPoints

' configure data labels
m_Stock.DataLabelStyle.Visible = False
m_Stock.DataLabelStyle.Format = "<xvalue>"
m_Stock.DataLabelStyle.VertAlign = VertAlign.Center

' add stock date time values
GenerateOHLCData(m_Stock, 150, 12 * 4)

' add stock date time values
For nMonth As Integer = 1 To 12
For nDay As Integer = 1 To 28 Step 7
m_Stock.XValues.Add((New Date(2003, nMonth, nDay)).ToOADate())
Next nDay
Next nMonth
End Sub

Protected Sub ConfigureStockVolumesChart()
m_ChartStockVolumes = New NCartesianChart()
nChartControl1.Panels.Add(m_ChartStockVolumes)

m_ChartStockVolumes.Location = New NPointL(New NLength(7, NRelativeUnit.ParentPercentage), New NLength(55, NRelativeUnit.ParentPercentage))
m_ChartStockVolumes.Size = New NSizeL(New NLength(84, NRelativeUnit.ParentPercentage), New NLength(35, NRelativeUnit.ParentPercentage))
m_ChartStockVolumes.BoundsMode = BoundsMode.Stretch
m_ChartStockVolumes.Wall(ChartWallType.Back).FillStyle = New NGradientFillStyle(GradientStyle.Horizontal, GradientVariant.Variant2, Color.White, Color.FromArgb(230, 230, 230))

' setup Y axis
Dim scaleY As New NLinearScaleConfigurator()
scaleY.MajorGridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleY.InnerMajorTickStyle.Visible = False
m_ChartStockVolumes.Axis(StandardAxis.PrimaryY).ScaleConfigurator = scaleY

' setup X axis
Dim scaleX As New NValueTimelineScaleConfigurator()
scaleX.FirstRow.GridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleX.FirstRow.GridStyle.LineStyle = New NStrokeStyle(1, Color.FromArgb(225, 225, 225))
scaleX.FirstRow.UseGridStyle = True
scaleX.FirstRow.InnerTickStyle.Visible = False
scaleX.SecondRow.GridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleX.SecondRow.GridStyle.LineStyle = New NStrokeStyle(1, Color.FromArgb(215, 215, 215))
scaleX.SecondRow.UseGridStyle = True
scaleX.SecondRow.InnerTickStyle.Visible = False
scaleX.ThirdRow.GridStyle.ShowAtWalls = New ChartWallType() { ChartWallType.Back }
scaleX.ThirdRow.GridStyle.LineStyle = New NStrokeStyle(1, Color.FromArgb(205, 205, 205))
scaleX.ThirdRow.UseGridStyle = True
scaleX.ThirdRow.InnerTickStyle.Visible = False
m_ChartStockVolumes.Axis(StandardAxis.PrimaryX).ScaleConfigurator = scaleX

' enable paging and scrollbar
m_ChartStockVolumes.Axis(StandardAxis.PrimaryX).PagingView = New NDateTimeAxisPagingView()
m_ChartStockVolumes.Axis(StandardAxis.PrimaryX).ScrollBar.Visible = True

' add a Bar series for the Volume values
m_Volume = CType(m_ChartStockVolumes.Series.Add(SeriesType.Bar), NBarSeries)
m_Volume.Name = "Volume"
m_Volume.DataLabelStyle.Visible = False
m_Volume.DataLabelStyle.Format = "<xvalue>"
m_Volume.DataLabelStyle.VertAlign = VertAlign.Center
m_Volume.UseXValues = True
m_Volume.InflateMargins = True
m_Volume.FillStyle = New NColorFillStyle(Color.FromArgb(119, 208, 151))

' add some stock items
For i As Integer = 0 To m_Stock.Values.Count - 1
m_Volume.Values.Add(100 + Random.Next(1000))
m_Volume.XValues.Add(m_Stock.XValues(i))
Next i
End Sub

Private Sub ConfigureAxes()
Dim primaryStockVolumesXAxis As NAxis = m_ChartStockVolumes.Axis(StandardAxis.PrimaryX)
Dim primaryStockValuesXAxis As NAxis = m_ChartStockValues.Axis(StandardAxis.PrimaryX)

primaryStockVolumesXAxis.Slaves.Add(primaryStockValuesXAxis)
primaryStockValuesXAxis.Slaves.Add(primaryStockVolumesXAxis)
End Sub

Private Sub ConfigureAxisCursors()
Dim stockValueAxisCursor As New NAxisCursor()
Dim stockVolumeAxisCursor As New NAxisCursor()

stockValueAxisCursor.BeginEndAxis = CInt(StandardAxis.PrimaryY)
stockVolumeAxisCursor.BeginEndAxis = CInt(StandardAxis.PrimaryY)

' each cursor is master of the other. When the users click on one of the
' charts this will result in an automatic update of the other cursor
stockValueAxisCursor.Slaves.Add(stockVolumeAxisCursor)
stockVolumeAxisCursor.Slaves.Add(stockValueAxisCursor)

m_ChartStockValues.Axis(StandardAxis.PrimaryX).Cursors.Add(stockValueAxisCursor)
m_ChartStockVolumes.Axis(StandardAxis.PrimaryX).Cursors.Add(stockVolumeAxisCursor)
End Sub

Private Sub ConfigureRangeSelections()
Dim stockValueRangeSelection As New NRangeSelection()
Dim stockVolumeRangeSelection As New NRangeSelection()

stockValueRangeSelection.VerticalValueSnapper = New NAxisRulerMinMaxSnapper()
stockVolumeRangeSelection.VerticalValueSnapper = New NAxisRulerMinMaxSnapper()

' each range selection is master of the other. When the users click on one of the
' charts this will result in an automatic update of the other range selection.
stockValueRangeSelection.Slaves.Add(stockVolumeRangeSelection)
stockVolumeRangeSelection.Slaves.Add(stockValueRangeSelection)

m_ChartStockValues.RangeSelections.Add(stockValueRangeSelection)
m_ChartStockVolumes.RangeSelections.Add(stockVolumeRangeSelection)
End Sub

Private Sub PagingViewResetModeComboBox_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles PagingViewResetModeComboBox.SelectedIndexChanged
Dim resetMode As PagingViewResetMode = CType(PagingViewResetModeComboBox.SelectedIndex, PagingViewResetMode)

m_ChartStockValues.Axis(StandardAxis.PrimaryX).PagingView.ResetMode = resetMode
m_ChartStockVolumes.Axis(StandardAxis.PrimaryX).PagingView.ResetMode = resetMode
End Sub

Private Sub AnimateZoomingCheckBox_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs) Handles AnimateZoomingCheckBox.CheckedChanged
m_DataZoomTool.AnimateZooming = AnimateZoomingCheckBox.Checked
End Sub
End Class
End Namespace
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