16762644760034.zip (91.3 KB)
“Object reference not set to an instance of an object” error occurs when converting this excel file
my C# source
License license = new License();
string test1 = "C://Users//Administrator//Documents//16762644760034.xlsx";
string test2 = test1 + ".pdf";
gd gd = new gd();
try
{
using (Viewer viewer = new Viewer(test1))
{
PdfViewOptions options = new PdfViewOptions(test2);
viewer.View(options); // code end at this line
gd = null;
}