Get Value from FastLineRenderableSeries based on XAxis Value

Hi Alex

Clamping Axis.Visiblerange in SciChart WPF can be achieved with a VisibleRangeChanged event handler

Take a look at Clipping the Axis.VisibleRange on Zoom and Pan

Clipping Axis.VisibleRange in Code To clip the VisibleRange and force a certain maximum or minimum, just use the following code:

axis.VisibleRangeChanged += (s, e) =>
  {
     // e is VisibleRangeChangedEventArgs
     // Assuming axis is NumericAxis
  
     if (e.NewVisibleRange != null && e.NewVisibleRange.Min < 0)
     {
        // Force minimum visiblerange to zero always
        ((NumericAxis)sender).VisibleRange = new DoubleRange(0, e.NewVisibleRange.Max);
     }
  };
  

There are other methods in there such as using VisibleRangeLimit but these have their limitations (no pun intended), such as not clamping when user zoom/pan occurs