How to insert the data using Stored Procedure in MVC4 using Data base first approach

private DBContext dbContext = new DBContext();


 public bool SaveApproveFormDetails(ApproveFromDetail approveFormDetails)
        {
            var completeId = new SqlParameter { ParameterName = "CompleteId", Value = approveFormDetails.CompleteId };

            var formCategory = new SqlParameter { ParameterName = "FormCategory", Value = approveFormDetails.FormCategory };

            var recipientReference = new SqlParameter { ParameterName = "RecipientReference", Value = approveFormDetails.RecipientReference };

            var recipientName = new SqlParameter { ParameterName = "RecipientName", Value = approveFormDetails.RecipientName };

            var formCompletedDate = new SqlParameter { ParameterName = "FormCompletedDate", Value = approveFormDetails.FormCompletedDate };

            var userLogin = new SqlParameter { ParameterName = "UserLogin", Value = approveFormDetails.UserLogin };

            var approveDate = new SqlParameter { ParameterName = "ApprovedDate", Value = approveFormDetails.ApprovedDate };

            var ApprovedBy = new SqlParameter { ParameterName = "ApprovedBy", Value = approveFormDetails.ApprovedBy };

            var ohgNotes = new SqlParameter { ParameterName = "OHGNotes", Value = approveFormDetails.OHGNotes };

            try
            {
                dbContext.Database.ExecuteSqlCommand("exec USP_SaveApproveFormDetails @CompleteId,@FormCategory,@RecipientReference,@RecipientName,@FormCompletedDate,@UserLogin,@ApprovedDate,@ApprovedBy,@OHGNotes",
                  completeId, formCategory,recipientReference,recipientName,formCompletedDate,userLogin,approveDate,ApprovedBy,ohgNotes);
                return true;
            }
            catch(Exception ex)
            {
                return false;
            }