按日期BindingSource的过滤器 [英] BindingSource Filter by date
问题描述
我想筛选来自基于最新数据库值
I want to filter values from database based on date.
日期中包含的值是这样的:2008-12-28 18时00分00秒。而我的类有这取决于我要筛选一个DateTime变量。理想的情况下它的工作是这样的:
myBindingSource.Filter =DATE(myDateField)= myDateTime.Date
+根据需要调整myDateTime.Date格式
Date in a database contains values like this: 2008-12-28 18:00:00. And my class has a DateTime variable depending on which I want to filter. Ideally it would work like this:
myBindingSource.Filter = "DATE(myDateField) = myDateTime.Date"
+ adjusting myDateTime.Date format as needed.
但它抛出一个EvaluateException:表达式包含未定义的函数调用DATE()
But it throws an EvaluateException: "The expression contains undefined function call DATE()."
虽然如果我执行SQL语句直接,我可以在过滤器中使用的日期()函数。
Although if I execute the SQL statement directly, I can use the DATE() function in filter.
P.S。我使用MySQL数据库的连接器/净5.2
P.S. I use MYSQL DB with the Connector/Net 5.2
我该如何解决这个问题呢?
How can I solve this problem?
谢谢大家对于建议。
推荐答案
则不需要getSqlDate功能。您可以使用的String.Format()格式化日期:
The getSqlDate function is not needed. You can use String.Format() to format dates:
String.Format("{0:yyyy-MM-dd} 00:00:00", myDateTime)
或
myDateTime.Date.ToString("yyyy-MM-dd") + " 00:00:00"
您可以过滤像这样绑定源:
You could filter the binding source like this:
myBindingSource.Filter = String.Format("myDateField >= '{0:yyyy-MM-dd}' AND myDateField < '{1:yyyy-MM-dd}'", myDateTime, myDateTime.AddDays(1));
这篇关于按日期BindingSource的过滤器的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!