I am trying to load the last saved chart position, so i am trying through following code:

chartPrimaryXAxis.ScrollBar.Visible = true;
chartPrimaryYAxis.ScrollBar.Visible = true;

chartPrimaryXAxis.ScrollBar.BeginValueChanged += new EventHandler(ScrollBar_BeginValueChanged);
chartPrimaryXAxis.PagingView = new NDateTimeAxisPagingView();
chartPrimaryYAxis.PagingView = new NNumericAxisPagingView();
UpdateDateTimeScale();
dateTimeScale.EnableUnitSensitiveFormatting = true;
// configure interactivity
chartControl.Controller.Selection.Add(chartControl.Charts[0]);
NRangeSelection rangeSelection = (chart.RangeSelections[0] as NRangeSelection);
rangeSelection.HorizontalAxisRange = new NRange1DD(new DateTime(2011, 06, 1, 10, 00, 00).ToOADate(), new DateTime(2011, 06, 1, 23, 00, 00).ToOADate());

chartControl.Controller.Tools.Add(new NSelectorTool());
chartControl.Controller.Tools.Add(new NAxisScrollTool());
chartControl.Controller.Tools.Add(new NDataZoomTool());
rangeSelection.ZoomIn();

How can i achieve this??



I have gotten the axis range as:
void chartDataZoomTool_EndDrag(object sender, EventArgs e)
{
chartControl.Document.Calculate();
chartControl.Document.RecalcLayout(chartControl.View.Context);

NRange1DD xAxisRange = chart.Axis(StandardAxis.PrimaryX).Scale.RulerRange;
DateTime startdate = DateTime.FromOADate(xAxisRange.Begin);
DateTime enddate = DateTime.FromOADate(xAxisRange.End);
System.Diagnostics.Debug.WriteLine("Horizontal Axis Begin Value" + startdate.ToString());
System.Diagnostics.Debug.WriteLine("Horizontal Axis End Value" + enddate.ToString());
}



That does not work so i have tried to zoomIn using the PagingView and it works, but there a problem that when i am trying to set the zoom begin and end range value on the constructor then it does not work but work fine if it executed on some button's event.


//PagingView Initialization

private void InitializePrimaryXAxis()
{
chartPrimaryXAxis = chart.Axis(StandardAxis.PrimaryX);
// X Axis Configuration

dateTimeScale = new NDateTimeScaleConfigurator();
dateTimeScale.Title.Text = string.Empty;
dateTimeScale.LabelStyle.Angle = new NScaleLabelAngle(ScaleLabelAngleMode.Scale, 90);
dateTimeScale.LabelStyle.ContentAlignment = ContentAlignment.MiddleCenter;
dateTimeScale.LabelStyle.TextStyle.FontStyle = new NFontStyle("Times New Roman", 10);
dateTimeScale.LabelFitModes = new LabelFitMode[] { LabelFitMode.AutoScale };
chartPrimaryXAxis.ScaleConfigurator = dateTimeScale;
chartPrimaryXAxis.ScrollBar.Visible = true;
chartPrimaryXAxis.ScrollBar.ResetButton.Visible = true;
chartPrimaryXAxis.ScrollBar.ShowSliders = true;
dateTimeScale.EnableUnitSensitiveFormatting = true;
dateTimeScale.RoundToTickMax = false;
dateTimeScale.RoundToTickMin = false;

NDateTimeAxisPagingView dateTimePagingView = new NDateTimeAxisPagingView();
chartPrimaryXAxis.PagingView = dateTimePagingView;
//chart.Axis(StandardAxis.PrimaryY).PagingView = new NNumericAxisPagingView();
}


/// Reload button working that called on the constructor, but page view set to month 6 to 12 if year data available.

private void ReloadInSaveState()
{
chart.RangeSelections.Clear();
NRangeSelection rangeSelection = new NRangeSelection();
rangeSelection.MinHorizontalPageSize = 0;
rangeSelection.MinVerticalPageSize = 0;
rangeSelection.ZoomOutResetsAxis = false;
rangeSelection.HorizontalAxisId = (int)StandardAxis.PrimaryX;
rangeSelection.VerticalAxisId = (int)StandardAxis.PrimaryY;

rangeSelection.PreserveAspectRatio = false;
rangeSelection.HorizontalValueSnapper = null;
rangeSelection.VerticalValueSnapper = new NAxisRulerMinMaxSnapper();
chart.RangeSelections.Add(rangeSelection);

NDateTimeAxisPagingView XPagingView = chartPrimaryXAxis.PagingView as NDateTimeAxisPagingView;
XPagingView.ResetMode = PagingViewResetMode.LastZoom;
UpdateDateTimeScale();

// configure interactivity

NRange1DD viewRange = new NRange1DD(new DateTime(2011, 1, 21, 4, 0, 0).ToOADate(), new DateTime(2011, 1, 21, 10, 0, 0).ToOADate());
// rangeSelection.HorizontalAxisRange = viewRange;
XPagingView.Enabled = true;
chartControl.Controller.Tools.Add(new NSelectorTool());
chartControl.Controller.Tools.Add(chartDataZoomTool);
chartControl.Controller.Tools.Add(new NAxisScrollTool());



//rangeSelection.VerticalAxisRange = new NRange1DD(2, 4);
//rangeSelection.SetAxisRanges(viewRange, viewRange);

XPagingView.ZoomIn(viewRange, 2);
chartControl.Refresh();

//rangeSelection.ZoomIn();
}

/// When i call this method on button event, it reset to some range.
private void btnRestore_Click(object sender, EventArgs e)
{
ReloadInSaveState();
}



and i have saved that range to global scope.

Now i am trying to put the chart in same state when my dataZoomTool left.