Hi,
I have a problem invoking the following, when adding pictures into the sheet through a stream.
excel.Save(“file.xls”, Excel.SaveType.OpenInExcel, Excel.FileFormatType.Excel97, Response);
This works fine, when I use the path of the image.
But when using a stream, the following error messages appear:
Exception Details: System.ArgumentNullException: String reference not set to an instance of a String. Parameter name: s
[ArgumentNullException: String reference not set to an instance of a String.
Parameter name: s]
System.Text.UnicodeEncoding.GetBytes(String s) +112
Aspose.Excel.Worksheet.a(Picture A_0)
Aspose.Excel.Record.a8.a(Worksheet A_0, Int32 A_1, Int32 A_2, Int32 A_3, Int32 A_4, Int32 A_5)
Aspose.Excel.Worksheet.c(bm A_0)
Aspose.Excel.Worksheets.d(bm A_0)
Aspose.Excel.Worksheets.a(String A_0, SaveType A_1, FileFormatType A_2, HttpResponse A_3)
[Exception: Errors in Excel Save method]
Aspose.Excel.Worksheets.a(UInt32 A_0, Exception A_1)
Aspose.Excel.Worksheets.a(String A_0, SaveType A_1, FileFormatType A_2, HttpResponse A_3)
Aspose.Excel.Excel.Save(String resultSpreadsheet, SaveType saveType, FileFormatType fileFormatType, HttpResponse response)
Any hints, what I’m doing wrong?
Regards,
Michael