Overview of dynamic dialog boxes

Introduction

When an MDAC developer wants to "dialog" with a user, he can create a dialog box, either modal or non-modal, through which communication can take place. Modal dialog boxes block other operations until the dialog box is closed, whilst non-modal dialog boxes can be left open whilst other actions are carried out. For example:

JBox box;

//start processing

box.show()

//end processing

The last line of the above code will only be executed after the dialog box has been closed.

Controls are positioned vertically by default. This positioning is handled by a cursor, which updates its vertical or horizontal position during the next control.

The following diagram illustrates the different metaclasses used (Figure 15).

Figure 15. Class diagram of the different metaclasses used

Various features can be added to these dialog box, whether modal or non-modal, for example, text fields or combo boxes.

J boxes are constructed in horizontal sections and/or vertical sections.