Mega Code Archive

Cmpnts

>How do I access other components in my application from within >[my Base] component? The Components[] list property exists in all descendants of TComponent and is used to store references to any owned components. When one calls "mycomponent := TSomeComponent.Create(aComponent)", mycomponent is placed in aComponent's Components[] list. In most cases, the form is specified as a component's owner in the Create method, in which case the component is placed in the form's Components[] list. The FindComponent() method (mentioned elsewhere) only searches the current component's Components[] list. If the object you want to find is owned by a different component, you will have to scan the other component's list. Depending on how you create your Base and other components, you may have to implement a recursive search algorithm that starts at the top of the ownership tree (probably with the form), and then descends into the tree, searching the Components[] list of each component it finds until the desired object is reached. A nice alternative is just to always specify your Base component as the owner of all your other sub-components when you create them. Then your search of the Base component's Components[] list should work.