Removes the specified chart sheet from the collection.
A ChartSheet object specifying a chart sheet to be removed from a workbook.
The Remove method disposes of an element removed from the collection. To remove a chart sheet by its index in the collection, use the ChartSheetCollection.RemoveAt method. You can also hide a chart sheet using the ChartSheet.Visible or ChartSheet.VisibilityType property.
A workbook must always contain at least one visible sheet.