How to import step file in solidworks using c#.net

Hi,

i am facing problem in importing the step file in solidworks using c#.net.

i used the api help, with that reference i used loadfile2 option to import step file.

but it showing error kindly help me to solve this problem

thanks in advance.

below i attached by code.

stepfiles = path of the stepfile

public string ConvertingStpFile(string strStpFilePath)

        {

            //=========================================Gets the Files From the folder=====================================

            SwConnect();

            string[] stpFilesFolder = Directory.GetFiles(strStpFilePath);          

            foreach (string StepFiles in stpFilesFolder)

            {

                isldWorks.LoadFile2(StepFiles, "r");

            }

return strStpFilePath;

}

SolidworksApi macros