Quickbook SDK中如何查询详细的销售代表和价格水平的客户名单

Question

我的目标很基本：尝试获取所有客户的详细信息，包括销售代表和价格水平。

我这样创建了一个新客户class。

public class Customer
{
    public string Name { get; set; }
    public string FullName { get; set; }
    public bool IsActive { get; set; }
    public string SalesRep { get; set; }
    public string PriceLevel { get; set; }
}

这是主要代码

https://gist.github.com/anonymous/3968904d2d0fc492ed176c40465313b6#file-gistfile1-txt

private void button1_Click(object sender, EventArgs e)
    {

        QBSessionManager sessionManager = null;
        try
        {
            sessionManager = new QBSessionManager();
            IMsgSetRequest requestMsgSet = sessionManager.CreateMsgSetRequest("US", 13, 0);
            requestMsgSet.Attributes.OnError = ENRqOnError.roeContinue;

            sessionManager.OpenConnection("", "Quickbooks SDK Demo Test");
            sessionManager.BeginSession("", ENOpenMode.omDontCare);

            ICustomerQuery customerQueryRq = requestMsgSet.AppendCustomerQueryRq();

            customerQueryRq.ORCustomerListQuery.CustomerListFilter.ActiveStatus.SetValue(ENActiveStatus.asAll);

            IMsgSetResponse responseMsgSet = sessionManager.DoRequests(requestMsgSet);

            sessionManager.EndSession();
            sessionManager.CloseConnection();

            IResponse response = responseMsgSet.ResponseList.GetAt(0);
            ICustomerRetList customerRetList = (ICustomerRetList)response.Detail;


            List<Customer> customers = new List<Customer>();


            if (customerRetList != null)
            {
                for (int i = 0; i < customerRetList.Count; i++)
                {
                    ICustomerRet customerRet = customerRetList.GetAt(i);

                    Customer customer = new Customer();
                    {
                        customer.Name = customerRet.Name.GetValue();
                        customer.FullName = customerRet.FullName.GetValue();
                        customer.IsActive = customerRet.IsActive.GetValue();
                        customer.PriceLevel = customerRet.PriceLevelRef.FullName.GetValue();
                        customer.SalesRep = customerRet.SalesRepRef.FullName.GetValue();
                    }
                    customers.Add(customer);
                }
            }

            dataGridView1.DataSource = customers;

        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }

        finally
        {
            sessionManager.EndSession();
            sessionManager.CloseConnection();
        }
    }

当我运行这个程序的时候，我得到一个错误： "Object Reference not set to an instance of an object" 我知道 SalesRep 和 PriceLevel 有问题，因为它们是对象引用，但我不知道如何修复它。

请帮忙。

谢谢

Answer 1

这些字段：

customer.PriceLevel = customerRet.PriceLevelRef.FullName.GetValue();
customer.SalesRep = customerRet.SalesRepRef.FullName.GetValue();

不会一直存在。您不能假设每个客户都存在 SalesRepRef 或 PriceLevelRef。有些客户没有销售代表，或者没有自定义价格水平。

因此，在尝试获取它们的值之前，请测试以确保它们没有 NULL 或以其他方式未设置。

Quickbook SDK中如何查询详细的销售代表和价格水平的客户名单

How to query customer list detailed with sales rep and price level in Quickbook SDK

c#

sdk

quickbooks

object-reference

qbfc