Determines whether an object can be inserted into a container.
procedure ValidateContainer(AComponent: TComponent); dynamic;
__fastcall ValidateContainer(TComponent * AComponent);
ValidateContainer is called by a component when it is about to be inserted into a container object. By default, ValidateContainer calls the ValidateInsert method of the component specified by the AComponent parameter.
Descendant components can override ValidateContainer to disallow a component from being inserted into specific containers. To disallow an insertion, raise an exception in the derived method.
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