Work with Combo Boxes in a Form in Axapta

To work with a control in X++, the AutoDeclaration must be set to YES. In the control, choose properties and set AutoDeclaration to YES.

Find the methods for a ComboBox in the form (Form, Designs, Design, ... Group, ComboBox(name), Methods). Right click Methods, Override Method, choose "SelectionChange".

public int selectionChange()
{
    int ret;

    ret = super();

    if(ComboBoxOnForm.selection() == SalesType::Journal)
    {
        Button.enabled(false);
    }
    else
    { 
        Button.enabled(true);
    }

    return ret;
}

HappyDaxing:)