Question

I need to update a form in AX to use a complex drop down box. To do this, I need to override the Lookup method. According to the code example I have, code like this should work:

public void lookup(FormControl _formControl){}

Unfortunately, I receive the compile error “The method override has an incorrect number of parameters.” From what I can tell, this error makes no sense as this is a valid override of the method. How do I fix this?

Answer 1

The lookup method on a datasource field on a form should be defined as:

public void lookup(FormControl _formControl, str _filterStr) {}

The lookup method on a control on a form should be defined as:

public void lookup() {}

In the AOT, if you right click on the Methods node where you want the function created and select Override method/lookup, AX will create a method with the correct signature for you.