Get extension is a function and you have <
between it and its ()
Replace this:
string sFileExt1 = Path.GetExtension < (objFI[0].Name);
With:
string sFileExt1 = Path.GetExtension(objFI[0].Name);
3
solved Operator ‘<' cannot be applied to operands of type 'group of methods' and 'string' in c# [closed]