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How to expand or collapse the group programmatically in SfSpreadsheet?

Platform: WPF |
Control: SfSpreadsheet
Tags: outline

SfSpreadsheet allows you to expand or collapse the groups in a worksheet.


Collapse group:

Groups can be collapsed by using CollapseGroup method of IRange and then hide the columns of SpreadsheetGrid like below. 



//Collapse columns
Spreadsheet.ActiveGrid.ColumnWidths.SetHidden(3, 6, true);


Expand group:

Groups can be expand by ExpandGroup method of IRange and then unhide the columns of SpreadsheetGrid like below. And also invalidate cells to refresh the view.



// Expand columns
Spreadsheet.ActiveGrid.ColumnWidths.SetHidden(3, 6, false);


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