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If choose MDI design mode (in the advantage setting), we may find a container holding a form in design time and it will disapear in run time (I am not saying the MDI form).<br />
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I remember I never use that comtainer. What is that for?
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If choose MDI design mode (in the advantage setting), we may find a container holding a form in design time and it will disapear in run time (I am not saying the MDI form).

I remember I never use that comtainer. What is that for?

why a form need a container?

Visual Basic is Microsoft’s event-driven programming language and integrated development environment (IDE) for its Component Object Model (COM) programming model. It is relatively easy to learn and use because of its graphical development features and BASIC heritage. It has been replaced with VB.NET, and is very similar to VBA (Visual Basic for Applications), the programming language for the Microsoft Office product line.