verticalExpand(amount: Number, ignoreInvalid: Boolean);
amount. Number of rows by which the range should be expanded.
ignoreInvalid. Indicates if non-existing table rows are ignored. If the parameter is set to True non-existing rows are ignored, when the parameter is False, they are not ignored.
The verticalExpand method expands a range of table cells to the top and to bottom by specified number of rows.
This method returns a Number type value: that is, the number of rows by which the range is expanded.
The example of use is given on the page with description of the TabSheetRange.horizontalExpand method.
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