In AX2012 I faced the following issue:
I tried to add a new method or override any existing method on CustListPage form, I was not able too as the option was not available. Also I am not able to find how to write method for list page new buttons. I also try button, command button and other but not working. Check below Image
I found out the solution to fix this problem, this problem is a new feature in AX2012 - the ability to use the same list pages both in AX client and on Enterprise Portal. If I change buttons DisplayTarget property to "Client", then you can override buttons methods - but you can't use that button on EP any more. By default the value of this property is "Auto" as shown below:
Hope this helps.
I tried to add a new method or override any existing method on CustListPage form, I was not able too as the option was not available. Also I am not able to find how to write method for list page new buttons. I also try button, command button and other but not working. Check below Image
I found out the solution to fix this problem, this problem is a new feature in AX2012 - the ability to use the same list pages both in AX client and on Enterprise Portal. If I change buttons DisplayTarget property to "Client", then you can override buttons methods - but you can't use that button on EP any more. By default the value of this property is "Auto" as shown below:
Hope this helps.