Format DateTime in BoundField of GridView as yyyy-MM-dd HH:mm:ss in ASP.Net

In My SQl Database table column (named "Enterance_DateTime"), datetime is saved in below format:

2014-03-05 15:17:45

But when I fetch this column in Gridview it shows datetime as below format:

4/5/2013 9:04:06 AM

I want to fetch exact datetime in Gridview what is saved in DB table. I tried using DataFormatString="{0:dd-MM-yyyy}" but is showing only date not time with it. Pleae reply how to achieve it.