throwgcnewInvalidOperationException(String::Format(CultureInfo::InvariantCulture,"Error creating a source string from filename {0}. Error: ",_fileName,gcnewString(errorBuffer)));
throwgcnewInvalidOperationException(String::Format(CultureInfo::InvariantCulture,"Error creating a source string from filename {0}. Error: {1}",_fileName,gcnewString(errorBuffer)));