public IActionResult ExportDataSheet(string filter)
{
var expression = _dataSheetHelper.SearchForExcel(filter);
if (expression == null)
{
expression = PredicateBuilder.True <DataSheet>();
}
expression = expression.And(k => k.FTSUser == null);
List <DataSheetWaitingForAdminDto> dataSheetDtos = _dataSheetService.GetDataSheetWaitingForAdminDtos(expression);
string[] columns = { "Müşteri Adı", "Kayıt No", "Kayıt Yapan", "Kayıt Tarihi", "Departman", "Ana Müşteri", "Ana Müşteri Model No",
"Model No", "Durum" };
byte[] filecontent = ExcelExportHelper.ExportExcel(dataSheetDtos, "FTSDataSheet", true, columns);
return(File(filecontent, ExcelExportHelper.ExcelContentType, "FTSDataSheet.xlsx"));
}