public static byte[] CreateExcel <T>(IEnumerable <T> items, Action <ArrayToExcelScheme <T> > schemeBuilder = null)
{
var scheme = new ArrayToExcelScheme <T>();
schemeBuilder?.Invoke(scheme);
return(_createExcel(items, scheme));
}
static byte[] _createExcel <T>(IEnumerable <T> items, ArrayToExcelScheme <T> scheme)
{
using (var ms = new MemoryStream())
{
using (var document = SpreadsheetDocument.Create(ms, SpreadsheetDocumentType.Workbook))
{
var workbookpart = document.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
var worksheetPart = workbookpart.AddNewPart <WorksheetPart>();
worksheetPart.Worksheet = new Worksheet();
var sheets = document.WorkbookPart.Workbook.AppendChild(new Sheets());
sheets.Append(new Sheet()
{
Id = document.WorkbookPart.GetIdOfPart(worksheetPart),
SheetId = 1,
Name = _normSheetName(scheme.SheetName) ?? "Sheet1"
});
_addStyles(document);
if (scheme.Columns.Count > 0)
{
var cols = worksheetPart.Worksheet.AppendChild(new Columns());
cols.Append(scheme.Columns.Select(x => new Column()
{
Min = (uint)(x.Index + 1), Max = (uint)(x.Index + 1), Width = x.Width, CustomWidth = true, BestFit = true
}));
var rows = _getRows(items, scheme.Columns);
var sheetData = worksheetPart.Worksheet.AppendChild(new SheetData());
sheetData.Append(rows);
worksheetPart.Worksheet.Append(new AutoFilter()
{
Reference = $"A1:{_getColReference(scheme.Columns.Count - 1)}{rows.Length}"
});
}
workbookpart.Workbook.Save();
}
return(ms.ToArray());
}
}