declare @tb table(dt datetime) insert into @tb select '2008-1-1' union all select '08-01-01' union all select '2008-01-11' union all select '2008-01-01 11:11:11' select dt,convert(nvarchar(10),dt,120) as ft from @tb /* dt ft ----------------------- ---------- 2008-01-01 00:00:00.000 2008-01-01 2001-08-01 00:00:00.000 2001-08-01 2008-01-11 00:00:00.000 2008-01-11 2008-01-01 11:11:11.000 2008-01-01 */
有N种日期格式供你选择,总有一种适合你~
具体例子:
SELECT CONVERT(varchar(100), GETDATE(), 0): 05 16 2006 10:57AM
SELECT CONVERT(varchar(100), GETDATE(), 1): 05/16/06
SELECT CONVERT(varchar(100), GETDATE(), 2): 06.05.16
SELECT CONVERT(varchar(100), GETDATE(), 3): 16/05/06
SELECT CONVERT(varchar(100), GETDATE(), 4): 16.05.06
SELECT CONVERT(varchar(100), GETDATE(), 5): 16-05-06
SELECT CONVERT(varchar(100), GETDATE(), 6): 16 05 06
SELECT CONVERT(varchar(100), GETDATE(), 7): 05 16, 06
SELECT CONVERT(varchar(100), GETDATE(), 8): 10:57:46
SELECT CONVERT(varchar(100), GETDATE(), 9): 05 16 2006 10:57:46:827AM
SELECT CONVERT(varchar(100), GETDATE(), 10): 05-16-06
SELECT CONVERT(varchar(100), GETDATE(), 11): 06/05/16
SELECT CONVERT(varchar(100), GETDATE(), 12): 060516
SELECT CONVERT(varchar(100), GETDATE(), 13): 16 05 2006 10:57:46:937
SELECT CONVERT(varchar(100), GETDATE(), 14): 10:57:46:967
SELECT CONVERT(varchar(100), GETDATE(), 20): 2006-05-16 10:57:47
SELECT CONVERT(varchar(100), GETDATE(), 21): 2006-05-16 10:57:47.157
SELECT CONVERT(varchar(100), GETDATE(), 22): 05/16/06 10:57:47 AM
SELECT CONVERT(varchar(100), GETDATE(), 23): 2006-05-16
SELECT CONVERT(varchar(100), GETDATE(), 24): 10:57:47
SELECT CONVERT(varchar(100), GETDATE(), 25): 2006-05-16 10:57:47.250
SELECT CONVERT(varchar(100), GETDATE(), 100): 05 16 2006 10:57AM
SELECT CONVERT(varchar(100), GETDATE(), 101): 05/16/2006
SELECT CONVERT(varchar(100), GETDATE(), 102): 2006.05.16
SELECT CONVERT(varchar(100), GETDATE(), 103): 16/05/2006
SELECT CONVERT(varchar(100), GETDATE(), 104): 16.05.2006
SELECT CONVERT(varchar(100), GETDATE(), 105): 16-05-2006
SELECT CONVERT(varchar(100), GETDATE(), 106): 16 05 2006
SELECT CONVERT(varchar(100), GETDATE(), 107): 05 16, 2006
SELECT CONVERT(varchar(100), GETDATE(), 108): 10:57:49
SELECT CONVERT(varchar(100), GETDATE(), 109): 05 16 2006 10:57:49:437AM
SELECT CONVERT(varchar(100), GETDATE(), 110): 05-16-2006
SELECT CONVERT(varchar(100), GETDATE(), 111): 2006/05/16
SELECT CONVERT(varchar(100), GETDATE(), 112): 20060516
SELECT CONVERT(varchar(100), GETDATE(), 113): 16 05 2006 10:57:49:513
SELECT CONVERT(varchar(100), GETDATE(), 114): 10:57:49:547
SELECT CONVERT(varchar(100), GETDATE(), 120): 2006-05-16 10:57:49
SELECT CONVERT(varchar(100), GETDATE(), 121): 2006-05-16 10:57:49.700
SELECT CONVERT(varchar(100), GETDATE(), 126): 2006-05-16T10:57:49.827
SELECT CONVERT(varchar(100), GETDATE(), 130): 18 ???? ?????? 1427 10:57:49:907AM
SELECT CONVERT(varchar(100), GETDATE(), 131): 18/04/1427 10:57:49:920AM
insert into @tb
select '2008-1-1' union all
select '08-01-01' union all
select '2008-01-11' union all
select '2008-01-01 11:11:11'
select dt,convert(nvarchar(10),dt,120) as ft from @tb
/*
dt ft
----------------------- ----------
2008-01-01 00:00:00.000 2008-01-01
2001-08-01 00:00:00.000 2001-08-01
2008-01-11 00:00:00.000 2008-01-11
2008-01-01 11:11:11.000 2008-01-01
*/
页面上先处理一下,再放进数据库:DateTime myTime = Convert.ToDateTime(txtDate.Text.Trim()).ToString("yyyy-MM-dd");
提示错误 2 无法将类型“string”隐式转换为“System.DateTime”
如果文本框输入的是有效时间格式,那么是不会报错的。
可以先parse一下:try
{
DateTime myTime = DateTime.Parse(txtDate.Text).ToString("yyyy-MM-dd");
}
catch
{
Response.write("<script>alert('无效的时间格式')</script>");
return;
}