c# – 使用openxml合并excel中的相邻单元格

// Given a document name,a worksheet name,and the names of two adjacent cells,merges the two cells.
    // When two cells are merged,only the content from one cell is preserved:
    // the upper-left cell for left-to-right languages or the upper-right cell for right-to-left languages.
    private static void MergeTwoCells(Worksheet worksheet,string cell1Name,string cell2Name)
    {
        // Open the document for editing.
        // Verify if the specified cells exist,and if they do not exist,create them.
        //CreateSpreadsheetCellIfNotExist(worksheet,cell1Name);
        //CreateSpreadsheetCellIfNotExist(worksheet,cell2Name);

            MergeCells mergeCells;
            if (worksheet.Elements<MergeCells>().Count() > 0)
            {
                mergeCells = worksheet.Elements<MergeCells>().First();
            }
            else
            {
                mergeCells = new MergeCells();

                // Insert a MergeCells object into the specified position.
                if (worksheet.Elements<CustomSheetView>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<CustomSheetView>().First());
                }
                else if (worksheet.Elements<DataConsolidate>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<DataConsolidate>().First());
                }
                else if (worksheet.Elements<SortState>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<SortState>().First());
                }
                else if (worksheet.Elements<AutoFilter>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<AutoFilter>().First());
                }
                else if (worksheet.Elements<Scenarios>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<Scenarios>().First());
                }
                else if (worksheet.Elements<ProtectedRanges>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<ProtectedRanges>().First());
                }
                else if (worksheet.Elements<SheetProtection>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<SheetProtection>().First());
                }
                else if (worksheet.Elements<SheetCalculationProperties>().Count() > 0)
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<SheetCalculationProperties>().First());
                }
                else
                {
                    worksheet.InsertAfter(mergeCells,worksheet.Elements<SheetData>().First());
                }
            }

            // Create the merged cell and append it to the MergeCells collection.

            string s1 = cell1Name + ":" + cell2Name ;
            MergeCell mergeCell = new MergeCell() { Reference = s1 };
            mergeCells.Append(mergeCell);

            worksheet.Save();

    }