ASP.NET GridView datastringformat - custom date format

To create custom data format (or any standard string format used by Microsoft):

DataFormatString="{0:MM/dd/yyyy}"


For standard formats:
https://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.boundfield.dataformatstring(v=vs.110).aspx


Sample:
http://dlastlee.com/Apps/SWRM/Releases.aspx