OpenXml To Excel之创建文档2

public static void CreateSpreadsheetWorkbook(string filepath)
{
// Create a spreadsheet document by supplying the filepath.
// By default, AutoSave = true, Editable = true, and Type = xlsx.
SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(filepath, SpreadsheetDocumentType.Workbook);

// Add a WorkbookPart to the document.
WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();

// Add a WorksheetPart to the WorkbookPart.
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());

// Add Sheets to the Workbook.
Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());

// Append a new worksheet and associate it with the workbook.
Sheet sheet = new Sheet() { Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "mySheet" };
sheets.Append(sheet);

workbookpart.Workbook.Save()

// Close the document.
spreadsheetDocument.Close();
}

IEnumerable<Cell> cells = row.Elements<Cell>().Where(c => c.CellReference.Value == cellRef);
if (cells.Count() == 0)
return;
else
{
Cell cell = cells.First();
string startCell = GetCellReference(i);
string endCell = GetCellReference(i) + (rowCount + 2);
string formula = "=SUM(" + startCell + ":" + endCell + ")";
cell.CellFormula = new CellFormula { CalculateCell = true, Text = formula };
}

public static void MergeSpeCells(string docName, string sheetName, string startCellName, string endCellName)
{
using (SpreadsheetDocument document = SpreadsheetDocument.Open(docName, true))
{
Worksheet worksheet = GetWorksheet(document, sheetName);
if (worksheet == null || string.IsNullOrEmpty(startCellName) || string.IsNullOrEmpty(endCellName))
{
return;
}
//check cell exist
CreateSpreadsheetCellIfNotExist(worksheet, startCellName);
CreateSpreadsheetCellIfNotExist(worksheet, endCellName);
MergeCells mergeCells;
if (worksheet.Elements<MergeCells>().Count() > 0)
{
mergeCells = worksheet.Elements<MergeCells>().First();
}
else
{
mergeCells = new MergeCells();
//insert mergecells into worksheet
worksheet.InsertAfter(mergeCells, worksheet.Elements<SheetData>().First());
}
//insert mergecell
MergeCell mc = new MergeCell() { Reference = new StringValue(startCellName + ":" + endCellName) };
mergeCells.Append(mc);
worksheet.Save();
}
}