DataNavigateUrlFormatString="javascript:openWindow = window.open( 'PopupBeneficiary.aspx?BeneficiaryID={0}','_blank','width=650,height=150,resizable=yes',true);openWindow.focus()"
This script is working as desired in that it calls the right page with the right parameter and the new page is sized as specified. One issue I am having is that another blank IE window is also opened in addition to the specified page and it has a message that the page cannot be displayed. I don't know how to prevent that from happening. Does anyone have insight into why the blank IE window is being opened?