Assembly: Microsoft.ReportViewer.WinForms (in microsoft.reportviewer.winforms.dll)
When ZoomMode is set to FullPage or PageWidth, this property returns the calculated zoom value rounded to the nearest integer. The minimum value is 1. When ZoomMode is set to Percent, this property returns the same value as ZoomPercent.
If no report page is currently displayed, the value 100 is returned.