How to expand or collapse the group programmatically in WinForms Spreadsheet?

Expand or collapse the group

WinForms Spreadsheet (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.ActiveSheet.Range["C3:F6"].CollapseGroup(ExcelGroupBy.ByColumns);
Spreadsheet.ActiveGrid.ColumnWidths.SetHidden(3, 6, true);

Expand group:

Groups can be expanded 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.ActiveSheet.Range["C3:F6"].ExpandGroup(ExcelGroupBy.ByColumns);
Spreadsheet.ActiveGrid.ColumnWidths.SetHidden(3, 6, false);
Spreadsheet.ActiveGrid.InvalidateCell(GridRangeInfo.Cols(3,7));

Samples:

WPF

WinRT

WinForms

UWP

Conclusion

I hope you enjoyed learning about how to expand or collapse the group programmatically in the Spreadsheet.

You can refer to our WinForms Spreadsheet feature tour page to know about its other groundbreaking feature representations and WinForms Spreadsheet documentation, to understand how to create and manipulate data.

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