Excel grouping
GemBox.Spreadsheet for Java has been retired
GemBox.Spreadsheet for Java supports grouping of rows and columns.
In the following example grouping is set both on rows and columns, where rows are expanded and columns are collapsed.

import com.gembox.spreadsheet.*;
class Program {
public static void main(String[] args) throws java.io.IOException {
// If using the Professional version, put your serial key below.
SpreadsheetInfo.setLicense("FREE-LIMITED-KEY");
ExcelFile workbook = new ExcelFile();
ExcelWorksheet worksheet = workbook.addWorksheet("Grouping");
worksheet.getCell(0, 0).setValue("Cell grouping examples:");
// Vertical grouping.
worksheet.getCell(2, 0).setValue("GroupA Start");
worksheet.getRow(2).setOutlineLevel(1);
worksheet.getCell(3, 0).setValue("A");
worksheet.getRow(3).setOutlineLevel(1);
worksheet.getCell(4, 1).setValue("GroupB Start");
worksheet.getRow(4).setOutlineLevel(2);
worksheet.getCell(5, 1).setValue("B");
worksheet.getRow(5).setOutlineLevel(2);
worksheet.getCell(6, 1).setValue("GroupB End");
worksheet.getRow(6).setOutlineLevel(2);
worksheet.getCell(7, 0).setValue("GroupA End");
worksheet.getRow(7).setOutlineLevel(1);
// Put outline row buttons above groups.
worksheet.getViewOptions().setOutlineRowButtonsBelow(false);
// Horizontal grouping (collapsed).
worksheet.getCell("E2").setValue("Gr.C Start");
worksheet.getColumn("E").setOutlineLevel(1);
worksheet.getColumn("E").setHidden(true);
worksheet.getCell("F2").setValue("C");
worksheet.getColumn("F").setOutlineLevel(1);
worksheet.getColumn("F").setHidden(true);
worksheet.getCell("G2").setValue("Gr.C End");
worksheet.getColumn("G").setOutlineLevel(1);
worksheet.getColumn("G").setHidden(true);
worksheet.getColumn("H").setCollapsed(true);
workbook.save("Grouping.%OutputFileType%");
}
}
See also
Next steps
Published: December 13, 2018 | Modified: December 19, 2022 | Author: Marek Turis