Gets or sets a value indicating whether the current chart sheet is visible.
true, if the chart sheet is visible; otherwise, false.
Use the Visible property to control the visibility of the chart sheet. To hide and unhide a chart sheet, you can also use the ChartSheet.VisibilityType property.
If you hide a chart sheet that is currently active, the next visible sheet (a worksheet or chart sheet) to the right of this chart sheet is automatically activated. If there are no visible sheets to the right of the hidden chart sheet, the first visible sheet to the left of this chart sheet becomes active.
A workbook must always contain at least one visible sheet.