Design-Time and Run-Time

Design-Time

The toolbox includes controls, when we manually manipulate such controls, taking them straight from the toolbox and using the Properties Pane to set the properties, we are doing this at Design-time. We must place the controls we require on the form ourselves during this time.

Run-Time

While the program is running we can add controls dynamically or programatically. The controls are classes from the VB library.When we want to we can instantiate these objects at any time.