SSpread.InsertCols Method

Explanation	Inserts one or more columns before the specified column. Inserting columns does not increase the maximum number of columns set in the MaxCols property. The data that was set in the last column of the spreadsheet will be out of range and lost due to the insertion of the column.
Call format	InsertCols(col, numcols)
Return value	None
Arguments	col	Column number immediately before the column insertion position
	numcols	Number of columns to insert
Exception	EXT-1	The argument of InsertCols is invalid
	EXT-28	An error occurred in the InsertCols method
Example of use	`Function OnRClicked(e) { if (e.Row == 0 && e.Col > 0) { var ret = PopupMenu("Add row", "Delete row"); switch (ret) { case 1: InsertCols(e.Col, 1); break; case 2: DeleteCols(e.Col, 1); break; } } }`
Related item	MaxCols property DeleteCols, InsertRows methods