I am trying to insert the text in existing cell by OpenXml, but it's not reflecting the excel sheet, Please any help me to!
static void InsertTextInCell(WorksheetPart worksheetPart)
{
Worksheet workSheet = worksheetPart.Worksheet;
SheetData sheetData = workSheet.GetFirstChild<SheetData>();
Cell cell = new Cell()
{
CellReference = "E8",
DataType = CellValues.String,
CellValue = new CellValue("Adding Value")
};
sheetData.Append(cell);
}
or
static void InsertTextInCell(WorkbookPart wbPart, string sheetName)
{
Sheet theSheet = wbPart.Workbook.Descendants<Sheet>().
Where(s => s.Name == sheetName).FirstOrDefault();
WorksheetPart wsPart =
(WorksheetPart)(wbPart.GetPartById(theSheet.Id));
Cell theCell = wsPart.Worksheet.Descendants<Cell>().
Where(c => c.CellReference == "A8").FirstOrDefault();
CellValue cellValue2 = new CellValue();
cellValue2.Text = "1test";
theCell.Append(cellValue2);
}
Thanks,
Saran
You can refer below code snippet to insert in text in excel
// Creates an SheetData instance and adds its children.
public SheetData GenerateSheetData()
{
SheetData sheetData1 = new SheetData();
Row row1 = new Row(){ RowIndex = (UInt32Value)1U, Spans = new ListValue<StringValue>() { InnerText = "1:1" } };
Cell cell1 = new Cell(){ CellReference = "A1", DataType = CellValues.SharedString };
CellValue cellValue1 = new CellValue();
cellValue1.Text = "0";
cell1.Append(cellValue1);
row1.Append(cell1);
Row row2 = new Row(){ RowIndex = (UInt32Value)2U, Spans = new ListValue<StringValue>() { InnerText = "1:1" } };
Cell cell2 = new Cell(){ CellReference = "A2", DataType = CellValues.SharedString };
CellValue cellValue2 = new CellValue();
cellValue2.Text = "1";
cell2.Append(cellValue2);
row2.Append(cell2);
sheetData1.Append(row1);
sheetData1.Append(row2);
return sheetData1;
}
static void InsertTextInCell(WorkbookPart wbPart, string sheetName, string addressName)
{
Sheet theSheet = wbPart.Workbook.Descendants<Sheet>().
Where(s => s.Name == sheetName).FirstOrDefault();
WorksheetPart wsPart =
(WorksheetPart)(wbPart.GetPartById(theSheet.Id));
Cell theCell = wsPart.Worksheet.Descendants<Cell>().
Where(c => c.CellReference == addressName).FirstOrDefault();
if (theCell.DataType == null)
{
theCell.CellValue = new CellValue("AddString");
}
}
Related
I have some code that's creating a DataTable, and then converting it to an Excel spreadsheet. Code is below:
DataTable table = (DataTable)JsonConvert.DeserializeObject(JsonConvert.SerializeObject(exportDtos), typeof(DataTable));
using var stream = new MemoryStream();
using (SpreadsheetDocument document = SpreadsheetDocument.Create(stream, SpreadsheetDocumentType.Workbook))
{
WorkbookPart workbookPart = document.AddWorkbookPart();
workbookPart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
var sheetData = new SheetData();
worksheetPart.Worksheet = new Worksheet(sheetData);
Sheets sheets = workbookPart.Workbook.AppendChild(new Sheets());
Sheet sheet = new Sheet() { Id = workbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "Sheet1" };
sheets.Append(sheet);
Row headerRow = new Row();
List<String> columns = new List<string>();
foreach (DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
Cell cell = new Cell();
cell.DataType = CellValues.String;
cell.CellValue = new CellValue(column.ColumnName);
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (DataRow dsrow in table.Rows)
{
Row newRow = new Row();
foreach (String col in columns)
{
Cell cell = new Cell();
var celltype = dsrow[col].GetType();
if (dsrow[col].GetType() == typeof(double))
{
cell.DataType = CellValues.Number;
cell.CellValue = new CellValue(decimal.Parse(dsrow[col].ToString()));
cell.StyleIndex = 2;
}
else if (dsrow[col].GetType() == typeof(DateTime))
{
cell.DataType = CellValues.Date;
cell.CellValue = new CellValue(DateTime.Parse(dsrow[col].ToString()).ToOADate());
cell.StyleIndex = 1;
}
else
{
cell.DataType = CellValues.String;
cell.CellValue = new CellValue(dsrow[col].ToString());
}
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
workbookPart.Workbook.Save();
}
The problem is that dates and decimal values were stored as text, and not sorting correctly in Excel, so I added these two conditions:
if (dsrow[col].GetType() == typeof(double))
{
cell.DataType = CellValues.Number;
cell.CellValue = new CellValue(decimal.Parse(dsrow[col].ToString()));
cell.StyleIndex = 2;
}
else if (dsrow[col].GetType() == typeof(DateTime))
{
cell.DataType = CellValues.Date;
cell.CellValue = new CellValue(DateTime.Parse(dsrow[col].ToString()).ToOADate());
cell.StyleIndex = 1;
}
else
{
cell.DataType = CellValues.String;
cell.CellValue = new CellValue(dsrow[col].ToString());
}
There's a few problems:
The StyleIndex doesn't work for the double values, it's not formatting the cell with 2 decimal places. It also gives this Repair error:
We found a problem with some content in 'file.xlsx' ... Excel was able to open the file by repairing or removing the unreadable content.
Excel completed file level validation and repair. Some parts of this workbook may have been repaired or discarded.
If I remove the StyleIndex, I don't get the error, but it still doesn't format the cell with 2 decimal places.
The date value is always a number value, not a date. And it always gives the repair error.
I've looked at several different forums saying to try different things, and I can't get any of them to work. I've changed the StyleIndex to different suggested numbers, changed the DataType, and it's always the same problems. Is there a consistent answer to how to format dates and currency values?
I have created a download button in C#/asp.net, which takes a GridView, converts it to a data table, and then stores it into a .xlsx file. What I want to do after is be able to change the active tab of the spreadsheet I created.
Here is the code below:
protected void downloadBtn_Click(object sender, EventArgs e)
{
using (var spreadSheet = SpreadsheetDocument.Create(Server.MapPath("~/Downloads/TestSheet.xlsx"), DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook))
{
WorkbookPart workbookPart = spreadSheet.AddWorkbookPart();
workbookPart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());
//Fine up to this point
spreadSheet.WorkbookPart.Workbook.Sheets = new Sheets();
DataTable table = new DataTable();
//Converts GridView into Data Table **
for (int i = 0; i < gvEmployee.HeaderRow.Cells.Count - 1; i++)
{
table.Columns.Add(gvEmployee.HeaderRow.Cells[i + 1].Text);
}
// fill rows
for (int i = 0; i < gvEmployee.Rows.Count; i++)
{
DataRow dr = table.NewRow();
for (int j = 0; j < gvEmployee.Columns.Count - 1; j++)
{
dr[j] = gvEmployee.Rows[i].Cells[j + 1].Text;
}
table.Rows.Add(dr);
}
var sheetPart = spreadSheet.WorkbookPart.AddNewPart<WorksheetPart>();
var sheetData = new SheetData();
sheetPart.Worksheet = new Worksheet(sheetData);
Sheets sheets = spreadSheet.WorkbookPart.Workbook.GetFirstChild<Sheets>();
string relationshipId = spreadSheet.WorkbookPart.GetIdOfPart(sheetPart);
uint sheetId = 1;
if (sheets.Elements<Sheet>().Count() > 0)
{
sheetId = sheets.Elements<Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
Sheet sheet = new Sheet() { Id = relationshipId, SheetId = sheetId, Name = "TestSheet" };
sheets.Append(sheet);
Row headerRow = new Row();
List<String> columns = new List<string>();
foreach (DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
Cell cell = new Cell();
cell.DataType = CellValues.String;
cell.CellValue = new CellValue(column.ColumnName);
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (DataRow dsrow in table.Rows)
{
Row newRow = new Row();
foreach (String col in columns)
{
Cell cell = new Cell();
cell.DataType = CellValues.String;
cell.CellValue = new CellValue(dsrow[col].ToString()); //
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
Sheet sheet2 = new Sheet() { Id = spreadSheet.WorkbookPart.GetIdOfPart(sheetPart), SheetId = 2, Name = "AdditionalSheet" };
sheets.Append(sheet2);
var sheetIndex = workbookPart.Workbook.Descendants<Sheet>().ToList().IndexOf(sheet2);
WorkbookView workbookView = workbookPart.Workbook.Descendants<WorkbookView>().FirstOrDefault(); //new WorkbookView();
workbookView.ActiveTab = Convert.ToUInt32(sheetIndex);
workbookPart.Workbook.Save();
spreadSheet.Close();
}
}
When I try to run this code, it throws an error on the "workbookView.ActiveTab" at the last few lines stating
System.NullReferenceException: 'Object reference not set to an instance of an object.'
workbookView was null.
Any ideas as to why its doing this?
Okay, I just figured out what was wrong, there was no WorkbookView initialized, as I thought it thought it didn't need to be. But you have to actually make a WorkbookView of your workbook before you can change it. I just needed this one line:
workbookPart.Workbook.Append(new BookViews(new WorkbookView()));
I am currently doing my head in working over the OpenXML 2.5 Framework on the MSDN site here, https://msdn.microsoft.com/en-us/library/office/cc861607.aspx
All methods I have tried to add a cell to an existing worksheet corrupt the workbook as the MSDN site only outlines creating the worksheet and not modifying it.
Everytime I add a cell the system wants a whole new worksheet and will not allow the addition of a cell to an existing worksheet. I have been banging my head for hours going over MSDN and Googling this with no luck.
The problem is I need a class that can receiving strings and update the excel file. Has anyone been able to add a cell to an existing worksheet? My issue seems to be due to a string by string solution.
Working input (PowerShell) only works if a new Worksheet is created for the Cell,
[CmdletBinding(SupportsShouldProcess=$true, ConfirmImpact='Medium')]
$cSharpData = (
[Reflection.Assembly]::LoadWithPartialName("DocumentFormat.OpenXml"),
[Reflection.Assembly]::LoadWithPartialName("WindowsBase"),
[Reflection.Assembly]::LoadWithPartialName("System.Linq")
)
[String]$cSharpClass = Get-Content .\method.cs
$cSharpType = Add-Type -ReferencedAssemblies $cSharpData -TypeDefinition $cSharpClass
$testData = Get-WmiObject Win32_QuickFixEngineering
[DoExcelMethod]::CreateXLSX('.\test.xlsx')
$locNo = 1
[DoExcelMethod]::AddSheetData('.\test.xlsx', $testData, 'TestWS', 'A', $locNo)
The file this is point at has the following,
using System;
using System.Linq;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
public class DoExcelMethod {
private static int SharedDataItem(string sData, SharedStringTablePart ssPart) {
if (ssPart.SharedStringTable == null) {
ssPart.SharedStringTable = new SharedStringTable();
}
int cnt = 0;
foreach (SharedStringItem sspItem in ssPart.SharedStringTable.Elements<SharedStringItem>()) {
if (sspItem.InnerText == sData) {
return cnt;
}
cnt++;
}
ssPart.SharedStringTable.AppendChild(new SharedStringItem(new DocumentFormat.OpenXml.Spreadsheet.Text(sData)));
ssPart.SharedStringTable.Save();
return cnt;
}
private static WorksheetPart InsertWorksheet(string wsName, WorkbookPart wbPart) {
WorksheetPart newWsPart = wbPart.AddNewPart<WorksheetPart>();
newWsPart.Worksheet = new Worksheet(new SheetData());
newWsPart.Worksheet.Save();
Sheets sheets = wbPart.Workbook.GetFirstChild<Sheets>();
string relId = wbPart.GetIdOfPart(newWsPart);
uint sheetId = 1;
if (sheets.Elements<Sheet>().Count() > 0) {
sheetId = sheets.Elements<Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
Sheet sheet = new Sheet() { Id = relId, SheetId = sheetId, Name = wsName };
sheets.Append(sheet);
wbPart.Workbook.Save();
return newWsPart;
}
private static Cell InsertCellInWorksheet(string columnName, uint rowIndex, WorksheetPart worksheetPart) {
Worksheet worksheet = worksheetPart.Worksheet;
SheetData sheetData = worksheet.GetFirstChild<SheetData>();
string cellReference = columnName + rowIndex;
Row row;
if (sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).Count() != 0) {
row = sheetData.Elements<Row>().Where(r => r.RowIndex == rowIndex).First();
} else {
row = new Row() { RowIndex = rowIndex };
sheetData.Append(row);
}
if (row.Elements<Cell>().Where(c => c.CellReference.Value == columnName + rowIndex).Count() > 0) {
return row.Elements<Cell>().Where(c => c.CellReference.Value == cellReference).First();
} else {
Cell refCell = null;
foreach (Cell cell in row.Elements<Cell>()) {
if (string.Compare(cell.CellReference.Value, cellReference, true) > 0) {
refCell = cell;
break;
}
}
Cell newCell = new Cell() { CellReference = cellReference };
row.InsertBefore(newCell, refCell);
worksheet.Save();
return newCell;
}
}
public static void CreateXLSX(string xlsxFile) {
SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(xlsxFile, SpreadsheetDocumentType.Workbook);
WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());
Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
Sheet sheet = new Sheet() { Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart), SheetId = 1, Name = "Default" };
sheets.Append(sheet);
workbookpart.Workbook.Save();
spreadsheetDocument.Close();
}
public static void AddSheetData(string xlsxFile, string psData, string wsName, string psCol, uint psRow) {
using (SpreadsheetDocument sSheet = SpreadsheetDocument.Open(xlsxFile, true)) {
SharedStringTablePart ssPart;
if (sSheet.WorkbookPart.GetPartsOfType<SharedStringTablePart>().Count() > 0) {
ssPart = sSheet.WorkbookPart.GetPartsOfType<SharedStringTablePart>().First();
} else {
ssPart = sSheet.WorkbookPart.AddNewPart<SharedStringTablePart>();
}
int ssIns = SharedDataItem(psData, ssPart);
WorksheetPart wsPart = InsertWorksheet(wsName, sSheet.WorkbookPart);
Cell cell = InsertCellInWorksheet(psCol, psRow, wsPart);
cell.CellValue = new CellValue(ssIns.ToString());
cell.DataType = new EnumValue<CellValues>(CellValues.SharedString);
wsPart.Worksheet.Save();
}
}
}
So despite this working I cannot get a cell into an existing worksheet, can anyone help as I am going insane :(
Thanks all
The issue you have is in the call to InsertWorksheet in AddSheetData. You are calling the InsertWorksheet method irrespective of whether or not the worksheet already exists. Instead of doing that, you can first search for the worksheet then if it exists you can use it and if it doesn't you can create a new one.
Firstly, you can search for a WorksheetPart by its name using a method such as this one (taken from my answer here):
private static WorksheetPart GetWorksheetPartBySheetName(WorkbookPart workbookPart, string sheetName)
{
WorksheetPart worksheetPart = null;
//find the sheet (note this is case-sensitive)
IEnumerable<Sheet> sheets = workbookPart.Workbook.GetFirstChild<Sheets>().Elements<Sheet>().Where(s => s.Name == sheetName);
if (sheets.Count() > 0)
{
string relationshipId = sheets.First().Id.Value;
worksheetPart = (WorksheetPart)workbookPart.GetPartById(relationshipId);
}
return worksheetPart;
}
If that method finds the WorksheetPart then it will return it, if not it will return null.
Once you have that you just need a small tweak to AddSheetData to call GetWorksheetPartBySheetName then only call InsertWorksheet if that method returns null. To do that you can replace this line
WorksheetPart wsPart = InsertWorksheet(wsName, sSheet.WorkbookPart);
with this
WorksheetPart wsPart = GetWorksheetPartBySheetName(sSheet.WorkbookPart, wsName);
if (wsPart == null)
wsPart = InsertWorksheet(wsName, sSheet.WorkbookPart);
I have Mysql procedure which will return 5 tables, Now i need to set those tables to Single Excel files 5 different sheets.
I am using VS 2010, Jquery, ASP.Net.
How to write that table's in excel file on a new sheet.
$("#btnExcel").click(function (e) {
$('#divExcelExporting').html($('#containerOne').html());
$('#divExcelExporting').append($('#containerTwo').html());
$('#divExcelExporting').append($('#containerThree').html());
$('#divExcelExporting').append($('#containerFour').html());
$('#divExcelExporting').append($('#containerFive').html());
var trcoll = $('#divExcelExporting').find('.border-middle1').find('tr');
$.each(trcoll, function (d, f) {
$($(this).find('td')[0]).remove();
});
var trcol2 = $('#divExcelExporting').find('.border-middle2').find('tr');
$.each(trcol2, function (d, f) {
$($(this).find('td')[0]).remove();
});
var trcol3 = $('#divExcelExporting').find('.border-middle3').find('tr');
$.each(trcol3, function (d, f) {
$($(this).find('td')[0]).remove();
});
var trcol4 = $('#divExcelExporting').find('.border-middle4').find('tr');
$.each(trcol4, function (d, f) {
$($(this).find('td')[0]).remove();
});
var trcol5 = $('#divExcelExporting').find('.border-middle5').find('tr');
$.each(trcol5, function (d, f) {
$($(this).find('td')[0]).remove();
});
WebService.SetVendorHTML($('#divExcelExporting').html(), OnWSRequestComplete);
});
I got solution from OpenXML.
string path = Context.Server.MapPath("~/ExcelData/test.xslx");
ExportDataSet(ds, path);
private void ExportDataSet(DataSet ds, string destination)
{
using (var workbook = SpreadsheetDocument.Create(destination, DocumentFormat.OpenXml.SpreadsheetDocumentType.Workbook))
{
var workbookPart = workbook.AddWorkbookPart();
workbook.WorkbookPart.Workbook = new DocumentFormat.OpenXml.Spreadsheet.Workbook();
workbook.WorkbookPart.Workbook.Sheets = new DocumentFormat.OpenXml.Spreadsheet.Sheets();
foreach (System.Data.DataTable table in ds.Tables)
{
var sheetPart = workbook.WorkbookPart.AddNewPart<WorksheetPart>();
var sheetData = new DocumentFormat.OpenXml.Spreadsheet.SheetData();
sheetPart.Worksheet = new DocumentFormat.OpenXml.Spreadsheet.Worksheet(sheetData);
DocumentFormat.OpenXml.Spreadsheet.Sheets sheets = workbook.WorkbookPart.Workbook.GetFirstChild<DocumentFormat.OpenXml.Spreadsheet.Sheets>();
string relationshipId = workbook.WorkbookPart.GetIdOfPart(sheetPart);
uint sheetId = 1;
if (sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Count() > 0)
{
sheetId =
sheets.Elements<DocumentFormat.OpenXml.Spreadsheet.Sheet>().Select(s => s.SheetId.Value).Max() + 1;
}
DocumentFormat.OpenXml.Spreadsheet.Sheet sheet = new DocumentFormat.OpenXml.Spreadsheet.Sheet() { Id = relationshipId, SheetId = sheetId, Name = table.TableName };
sheets.Append(sheet);
DocumentFormat.OpenXml.Spreadsheet.Row headerRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
List<String> columns = new List<string>();
foreach (System.Data.DataColumn column in table.Columns)
{
columns.Add(column.ColumnName);
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(column.ColumnName);
headerRow.AppendChild(cell);
}
sheetData.AppendChild(headerRow);
foreach (System.Data.DataRow dsrow in table.Rows)
{
DocumentFormat.OpenXml.Spreadsheet.Row newRow = new DocumentFormat.OpenXml.Spreadsheet.Row();
foreach (String col in columns)
{
DocumentFormat.OpenXml.Spreadsheet.Cell cell = new DocumentFormat.OpenXml.Spreadsheet.Cell();
cell.DataType = DocumentFormat.OpenXml.Spreadsheet.CellValues.String;
cell.CellValue = new DocumentFormat.OpenXml.Spreadsheet.CellValue(dsrow[col].ToString()); //
newRow.AppendChild(cell);
}
sheetData.AppendChild(newRow);
}
}
}
}
References :
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml;
I am new to this and when I try to add more than one cell to a row it says there is unreadable content. Here is what I have.
SpreadsheetDocument ssDoc = SpreadsheetDocument.Create(saveFile, SpreadsheetDocumentType.Workbook);
// Add a WorkbookPart to the document
WorkbookPart workbookPart = ssDoc.AddWorkbookPart();
workbookPart.Workbook = new Workbook();
// Add a WorksheetPart to theWorkbookPart
WorksheetPart worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());
Sheets sheets = ssDoc.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
Sheet sheet = new Sheet()
{ Id = ssDoc.WorkbookPart.GetIdOfPart(worksheetPart),
SheetId = 1, Name = "Sheet1"
};
sheets.Append(sheet);
Worksheet worksheet = new Worksheet();
SheetData sheetData = new SheetData();
Row row = new Row();
Cell cell = new Cell()
{
CellReference = "A1",
DataType = CellValues.String,
CellValue = new CellValue("Cell1")
};
Cell cell2 = new Cell()
{
CellReference = "A2",
DataType = CellValues.String,
CellValue = new CellValue("Cell2")
};
row.Append(cell);
row.Append(cell2);
sheetData.Append(row);
worksheet.Append(sheetData);
worksheetPart.Worksheet = worksheet;
// Close the document.
ssDoc.Close();
If I remove the second cell, it works as expected.
Instead of "A2" the cell reference should be "B1"
SpreadSheet.Cell cell = new SpreadSheet.Cell()
{
CellReference = "A1",
DataType = SpreadSheet.CellValues.String,
CellValue = new SpreadSheet.CellValue("Cell1")
};
SpreadSheet.Cell cell2 = new SpreadSheet.Cell()
{
CellReference = "B1",
DataType = SpreadSheet.CellValues.String,
CellValue = new SpreadSheet.CellValue("Cell2")
};
I had a similar issue. If anyone wants to insert cells in the same column, Row Index needs to be incremented and cell reference in order to insert cell in the same column. Took me entire weekend to figure out :D
Row row2 = new Row { RowIndex = 2};
SpreadSheet.Cell cell2 = new SpreadSheet.Cell()
{
CellReference = "B1",
DataType = SpreadSheet.CellValues.String,
CellValue = new SpreadSheet.CellValue("Cell2")
};
row2.Append(cell2);
sheetData.Append(row);
It's better to use loop.