Question

我有此代码：

protected readonly IMsgSetRequest RequestMsgSet = null;
protected IMsgSetResponse ResponseMsgSet = null;

public string GetAllCustomer(bool IsActiveOnly = true)
{

    RequestMsgSet.ClearRequests();
    ICustomerQuery CustomerQueryRq = RequestMsgSet.AppendCustomerQueryRq();

    if (IsActiveOnly)
    {
        if (CustomerQueryRq != null)
            CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.ActiveStatus.SetValue(
                ENActiveStatus.asActiveOnly);
    }
    else {
        CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.ActiveStatus.SetValue(ENActiveStatus.asAll);
    }
    ResponseMsgSet = SessionManager.DoRequests(RequestMsgSet);
    return(ResponseMsgSet.ToXMLString());
}

Console.WriteLine(GetAllCustomer());

它返回以下内容：

<?xml version="1.0" ?>
<QBXML>
<QBXMLMsgsRs>
<CustomerQueryRs requestID="0" statusCode="1000" statusSeverity="Error" statusMessage="There has been an internal error when processing the request." />
</QBXMLMsgsRs>
</QBXML>

我怀疑DoRequests内存不足，因为我有110,000个客户。

如何确认DoRequests内存不足？

如何重写此代码以使用更少的内存？

Answer 1

看看ICustomerQuery

您可以使用过滤器来获取数据，例如：名称范围（a-i，j-r比s-z）过滤器，日期范围过滤器，名称以过滤器开头以及其他一些过滤器。

这也可用于仅获取所需的内容：全名和帐户号。

这样，您可以消耗更少的内存使用量。看看下面的示例代码：

public IList<CustomerModelQB> GetAllCustomer(string fromName = "a", string toName = "z", bool IsActiveOnly = true)
    {
        RequestMsgSet.ClearRequests();
        ICustomerQuery CustomerQueryRq = RequestMsgSet.AppendCustomerQueryRq();

        if (IsActiveOnly)
        {
            if (CustomerQueryRq != null)
                CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.ActiveStatus.SetValue(
                    ENActiveStatus.asActiveOnly);
        }
        else
            CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.ActiveStatus.SetValue(ENActiveStatus.asAll);

        //CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.MaxReturned.SetValue(3);

        //Set field value for FromName
        CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.ORNameFilter.NameRangeFilter.FromName.SetValue(fromName);
        //Set field value for ToName
        CustomerQueryRq.ORCustomerListQuery.CustomerListFilter.ORNameFilter.NameRangeFilter.ToName.SetValue(toName);

        CustomerQueryRq.IncludeRetElementList.Add("FullName");
        CustomerQueryRq.IncludeRetElementList.Add("AccountNumber");
        ResponseMsgSet = SessionManager.DoRequests(RequestMsgSet);
        return WalkCustomerQuery(ResponseMsgSet);
    }

进一步，您可以参考this问题以按字母顺序排列。

QuickBooks客户检索失败

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