You can use the MergeCells
and MergeCell
classes to create the merged cells you require. The MergeCells
class is the collection of merge cells (<mergeCells count="3">
in your XML) and the MergeCell
class represents each individual set of merged cells (<mergeCell ref="xx:xx" />
in your XML). To populate data in the merged cells you need to add the value to the upper left most cell; any other values will be ignored.
The following code will create a new file with merged cells.
using (SpreadsheetDocument myDoc = SpreadsheetDocument.Create(filename, SpreadsheetDocumentType.Workbook))
{
WorkbookPart workbookpart = myDoc.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
// Add a WorksheetPart to the WorkbookPart.
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
SheetData sheetData = new SheetData();
//add a row
Row firstRow = new Row();
firstRow.RowIndex = (UInt32)1;
//create a cell in C1 (the upper left most cell of the merged cells)
Cell dataCell = new Cell();
dataCell.CellReference = "C1";
CellValue cellValue = new CellValue();
cellValue.Text = "99999";
dataCell.Append(cellValue);
firstRow.AppendChild(dataCell);
sheetData.AppendChild(firstRow);
// Add a WorkbookPart to the document.
worksheetPart.Worksheet = new Worksheet(sheetData);
//create a MergeCells class to hold each MergeCell
MergeCells mergeCells = new MergeCells();
//append a MergeCell to the mergeCells for each set of merged cells
mergeCells.Append(new MergeCell() { Reference = new StringValue("C1:F1") });
mergeCells.Append(new MergeCell() { Reference = new StringValue("A3:B3") });
mergeCells.Append(new MergeCell() { Reference = new StringValue("G5:K5") });
worksheetPart.Worksheet.InsertAfter(mergeCells, worksheetPart.Worksheet.Elements<SheetData>().First());
//this is the part that was missing from your code
Sheets sheets = myDoc.WorkbookPart.Workbook.AppendChild(new Sheets());
sheets.AppendChild(new Sheet()
{
Id = myDoc.WorkbookPart.GetIdOfPart(myDoc.WorkbookPart.WorksheetParts.First()),
SheetId = 1,
Name = "Sheet1"
});
}
The code above produces: