如何在EditValue中爲GridView設置過濾器？ Winforms Devexpress

Question

當用戶從下拉菜單中選擇一些項目時，我需要過濾gridview。所以我寫在編輯值的變化情況下，本查詢代碼，但我的查詢是錯誤

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 

我這裏有6個條件篩選此類發票日期

1）InvoiceDate之前，2014年1月4日

2）InvoiceDate startfrom 2014年1月3日恩頓31-0302014

3）InvoiceDate thisweek即最後從現在

4）InvoiceDate過去一週7天即是正低（今天） - 14天7天

5）InvoiceDate thisMonth的是過去30天了

6）InvoiceDate LastMonth，現在是（今天） - 60日30天

幫我怎麼形成這個查詢

Answer 1

我認爲你如何通過日期有一個問題。

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'; 

這可能會實現或通過日期CDATE（'06 -04-2014' ）