An OnResizeControlEnum expression that specifies whether the list or the chart
part of the control is resized, when the entire control is resized.
By default, the OnResizeControl property is exResizeList.
In other words, the list part of the control ( the part that lists the columns
) gets resized, and the chart are stay fixed. Use the OnResizeControl to
specify whether the chart area should be resized when the user resizes the
control ( whenever the chart is anchored to a form ). Use the PaneWidth
property to specify the width of the list or chart part of the control.
