ASP.NET GridView issue with DataFormatString in a BoundField

I have a BoundField in a GridView whose datatype (in MSSQL) is time(7). The format is being displayed as:

hh:mm:ss.xxxxxx

I want to add a DataFormatString to this boundfield so that the field displays in the format:

hh:mm:ss

Here is a snippet of the .aspx file that I'm modifying:

<asp:BoundField DataField="ProcTime" HeaderText="ProcTime开发者_运维问答"

SortExpression="ProcTime" ApplyFormatInEditMode="true" HtmlEncode="true" DataFormatString="{0:F0}" />

I've tried many different format strings (t, T, d, D, m, etc) but it does not change the format of the boundfield.

What am I missing?

I figured it out (the link here gives a more in depth example).

In a nutshell, I need to add an event handler to my GridView which fires when the "OnRowDataBound" event happens. This event handler will then be in charge of changing the formatting of the text in a cell.

because you are formatting just a single value and not a set of values you do not need to specify what value to use. So the format"{0:F0}" becomes "{F0}"