SqlHelperExecuteScalarT(ExecuteType, String, Object) Method

public DatabaseResult<T> ExecuteScalar<T>(
	ExecuteType executeType,
	string statement,
	Object parameter
)

using (SqlHelper sqlHelper = new SqlHelper("SqlServer"))
{
    DatabaseResult<Guid> result = sqlHelper.ExecuteScalar<Guid>(ExecuteType.Text, sqlHelper.GetQueryString<Employee>() + " Where IneffectiveDate Is Null Or IneffectiveDate >= @IneffectiveDate", new { IneffectiveDate = DateTime.Now });

    if (result.IsSuccess) {
        Guid employeeId = result.Result;

        //Do something
    } else {
        Exception exception = result.Exception;

        //Error handling
    }
}