RAD Studio VCL Reference
TPropertyPage.UpdatePropertyPage Method

Copies the property values from the ActiveX object to controls on the property page.

procedure UpdatePropertyPage; virtual;
virtual __fastcall UpdatePropertyPage();

This method is normally called when the property page is first shown, or when the user undoes changes to the property dialog box. The UpdatePropertyPage method implemented by TPropertyPage does nothing. Override this method to copy the property values from the ActiveX object to the controls on the property page. 

UpdatePropertyPage is the reverse of UpdateObject, which copies the property values from controls on the property page to the ActiveX object. 


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