Adding a Field to a User Control EP 2009

Hi All

I'm using VS2008 & AX 2009 , I have Adding a Field to a User Control  on Grid view over PurchReqTableInfo.ascx user control , however I can not see any update on EP after building the project in VS .

 Adding a Field to a User Control

ref https://msdn.microsoft.com/en-us/library/cc556964(v=ax.50).aspx