# 4295 Invalid Child Controls Allowed to be Parented to Controls

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I have a test project I successfully broke by playing with layout in designed only - I believe I was trying to paste a regular panel (with some buttons on it) onto a scrollpanel control (i.e. select tpanel, Crtl+X, select TScrollpanel and hit Ctrl+V).

Error i'm getting is :

Error loading the Form1 form:

Error dispatching design-time event for ScrollPanel1 instance:

Message:

"Internal error (Value conversion error)"

Stack Trace:

Visible in unit WebCtrls at 1473,20
SetVisible(Visible) in unit WebCtrls at 370,58
UpdateScrollBars() in unit WebCtrls at 2869,4
DoClientSize() in unit WebCtrls at 1612,16