private void extractERDDiagram(string path)
        {
            string message = string.Empty;

            if (string.IsNullOrEmpty(path))
            {
                MessageBox.Show("Must select an image file", "Select File", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }

            string extension = Path.GetExtension(path);

            //Parsing From Image
            if (extension == ".jpg" || extension == ".jpeg" || extension == ".png" || extension == ".bmp" || extension == ".vdx")
            {
                using (FileOperationManager fop = new FileOperationManager(grdColumns, project, table))
                {
                    entities = fop.extractERDDiagram(path, out message);
                    loadTableDropDownList();
                }
            }
            else
            {
                MessageBox.Show("File format invalid!", "Select File", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                return;
            }
        }