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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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If you ever wonder why you get no (or incomplete) RTTI from a control that you…

Posted by jpluimers on 2017/08/08

Thanks Stefan Glienke for posting this a while ago:

If you ever wonder why you get no (or incomplete) RTTI from a control that you inherited from a DevExpress one – then look into cxVer.inc where it has the following lines:

{$IFNDEF CXTEST}
{$WEAKLINKRTTI ON}
{$RTTI EXPLICIT METHODS([]) FIELDS([]) PROPERTIES([])}
{$ENDIF}

+Martin Wienold was wondering (and so was I at first) why he could not properly resolve a form from the DI container that inherited from TdxRibbonForm despite writing a public method with [Inject] attribute on it but it was never called.

Warning: If you are using DevExpress or any other source code that does this (changing the $RTTI directive) and build these sources together with your application (in contrast to using precompiled dcus or even packages) on a version <XE6 then you might suffer from this issue: [WayBack] #79943: {$ RTTI} flag scope which causes RTTI to disappear even from units that did not have the $RTTI in them.

Source: If you ever wonder why you get no (or incomplete) RTTI from a control that you…

 –jeroen

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