Question

当用户从下拉列表中选择某个项目时，我需要过滤gridview。所以我在编辑值更改事件中编写此查询代码，但我的查询是错误

SELECT InvoiceId, InvoiceNumber, InvoiceDate, 
(Select CustomerId from Customer Where Customer.CustomerId=NewInvoice_1.CustomerName) AS CustomerId, 
(Select CustomerName from Customer where Customer.CustomerId = NewInvoice_1.CustomerName) AS CustomerName, 
DueDate, Tax, GrandTotal, CompanyId
FROM NewInvoice_1
Where InvoiceDate < 06-04-2014; // error in where condition

此处我有6个条件来过滤此发票日期

1）2014年4月1日之前的InvoiceDate

2）InvoiceDate从01-03-2014 endon 31-0302014开始

3）InvoiceDate这是从现在起的最后7天

4）InvoiceDate上周现在（今天） - 14天到+7天

5）InvoiceDate从现在起30天内的ThisMonth

6）InvoiceDate LastMonth现在（今天） - 60天到+30天

帮助我如何形成对此

的查询

Answer 1

我认为你如何通过日期存在问题。

 SELECT InvoiceId, InvoiceNumber, InvoiceDate, 
 (Select CustomerId from Customer Where Customer.CustomerId=NewInvoice_1.CustomerName) AS CustomerId, 
 (Select CustomerName from Customer where Customer.CustomerId = NewInvoice_1.CustomerName) AS CustomerName, 
 DueDate, Tax, GrandTotal, CompanyId
 FROM NewInvoice_1
 Where InvoiceDate < '06-04-2014';

这可能会起作用或将日期作为CDate（'06 -04-2014'）

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