hasIndex(index: PP.Ui.TabSheetCellBorderIndex);
index. Index of table cell border. The user can get this index via the TabSheetCellBorderStyle.Index property.
The hasIndex method indicates if a specified index of table cell border exists.
This method returns True if specified index of table cell border exists, otherwise it returns False.
The example of use is given on the page with description of the TabSheetCellBorderStyle.Color property.
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