The Show Dialog method displays a dialog window when selecting a file you want to open.
A Show Dialog is also known as a modal window. It displays the window, disables all other windows in the application, and only returns when it is closed.
A modal window is majorly used as a dialog box. A dialog box is a window that applications use to interact with the users to have tasks completed, such as printing documents and opening files. The dialog box also permits users to accept or cancel the functions they were shown before the dialog box is closed.
There are four types of dialog boxes: MessageBox, Dialog Box Procedures, Creating Modal Dialog Boxes and Creating Modeless Dialog Boxes.
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