Вот моя реализация OpenXML.Для простоты я исключил код стиля ячейки.
Это создает файл Excel с двумя строками и 3 столбцами.Вы можете изменить это в соответствии со своими потребностями.
Основной метод:
static void Main(string[] args)
{
var dtToXl = new DtToExcel();
var dt = new DataTable();
dt.Columns.Add("Col1");
dt.Columns.Add("Col2");
dt.Columns.Add("Col3");
dt.Rows.Add("R1C1", "R1C2", "R1C3");
dt.Rows.Add("R2C1", "R2C2", "R2C3");
dtToXl.GetExcel(dt);
if(Debugger.IsAttached)
{
Console.ReadLine();
}
}
Метод GetExcel:
public void GetExcel(DataTable dt)
{
using (var document = SpreadsheetDocument.Create("C:\\Desktop\\Excel1.xlsx", SpreadsheetDocumentType.Workbook))
{
var workbookPart = document.AddWorkbookPart();
workbookPart.Workbook = new Workbook();
var sheets = workbookPart.Workbook.AppendChild(new Sheets());
AddWorksheet(dt, 1, ref sheets, ref workbookPart);
}
}
метод AddWorksheet:
private void AddWorksheet(DataTable dt, int sheetCount, ref Sheets sheets, ref WorkbookPart workbookPart)
{
var worksheetPart = workbookPart.AddNewPart<WorksheetPart>();
var sheetData = new SheetData();
var sheetName = $"Sheet{sheetCount}";
worksheetPart.Worksheet = new Worksheet();
//Create header rows
#region Excel Headers
Row row = new Row
{
RowIndex = 1
};
row.AppendChild(AddCellWithValue("Column 1", CellValues.InlineString));
row.AppendChild(AddCellWithValue("Column 2", CellValues.InlineString));
row.AppendChild(AddCellWithValue("Column 3", CellValues.InlineString));
sheetData.AppendChild(row);
#endregion
//Create data rows
#region Excel data rows
var rowIndex = (UInt32)2;
foreach (DataRow dtRow in dt.Rows)
{
row = new Row
{
RowIndex = rowIndex++
};
row.AppendChild(AddCellWithValue(dtRow[0].ToString(), CellValues.InlineString));
row.AppendChild(AddCellWithValue(dtRow[1].ToString(), CellValues.InlineString));
row.AppendChild(AddCellWithValue(dtRow[2].ToString(), CellValues.InlineString));
sheetData.AppendChild(row);
}
#endregion
var columns = new Columns();
columns.Append(new Column() { Min = 1, Max = 1, Width = 20, CustomWidth = true });
columns.Append(new Column() { Min = 2, Max = 2, Width = 20, CustomWidth = true });
columns.Append(new Column() { Min = 3, Max = 3, Width = 20, CustomWidth = true });
worksheetPart.Worksheet.Append(columns);
worksheetPart.Worksheet.Append(sheetData); //This line should be anywhere below .Append(columns)
var sheet = new Sheet() { Id = workbookPart.GetIdOfPart(worksheetPart), SheetId = (UInt32)sheetCount, Name = sheetName };
sheets.Append(sheet);
}
метод AddCellWithValue
private Cell AddCellWithValue(string value, CellValues type)
{
var cell = new Cell
{
DataType = type
};
if (type == CellValues.InlineString)
{
var inlineString = new InlineString();
var t = new Text
{
Text = value
};
inlineString.AppendChild(t);
cell.AppendChild(inlineString);
}
else
{
cell.CellValue = new CellValue(value);
}
return cell;
}