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Multiform Projects Guide
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- 2. Multiform Projects Chapter 6 McGraw-Hill © 2006 The McGraw-Hill Companies, Inc. All rights reserved.
- 7. Switching Between Forms (2 of 2) Using Tabs Selecting from drop down list
- 11. An About Box (2 of 2)
- 14. Assembly Information Dialog Box
- 19. Setting the Splash Screen Example Set the Splash screen drop-down list to the new form in the Project Designer
- 27. The Sequence of Form Events Occurs after the form is closed FomClosed Occurs as the form is about to close FormClosing Occurs when the form is no longer the active form Deactivate Occurs each time any portion of the form is redrawn Paint Occurs each time the form is shown Activate Occurs before the form is displayed for the first time-usually happens only once Load
Notas do Editor
- Brief description on how to navigate within this presentation (ppt) The first time a Key Term from the chapter is used in the ppt it will display in blue Gold colored text boxes display coding examples Slides will be numbered (# of #) when multiple slides on same topic (Slide title) Speaker notes are included where appropriate for slides (*)Denotes either a comment for page reference to textbook or slide reference in ppt
- The new form will display on the screen and be added to the Solution Explorer Window
- The Solution Explorer window shows the files that are included in a project-you can add new files and remove files from a project
- About boxes typically hold labels and perhaps an image or shape controls for a logo *The new slide shows an example of a typical About box
- A typical About box that contains labels, a group box, a picture box, and a button – [suggestion: have students identify each label, group box, picture box and button]
- A new form created with the About Box template. The form can be customized by setting properties of the controls, adding controls, or removing controls.
- *The Assembly Information dialog box displays on the next slide
- Enter or modify the project’s information on the Assembly Information dialog box Once the information is entered into the Assembly Information , it can be retrieved by using the My.Application object.
- *The next slide displays a custom splash screen created from a standard Windows form
- The predefined code in the splash screen template may be more complicated than is needed- it includes code to fill in the application title, version, and copyright information from the project’s assembly information
- Whether you create your own splash screen or use the VB template, you must take one more step to make the splash screen appear before the startup form
- In code, you can use several methods to show, hide, and close forms
- Even with a modal form, the user can switch to another application within Windows
- Form handling in VB .NET 2005 is significantly different than form handling in VB .NET 2003 and earlier versions. VB 2005 automatically creates a form object for each of the form classes that you create. You can show, hide, and close forms without explicitly declaring a new object. This default form object is not actually instantiated until you access one of the form’s objects (such as a text box) or a form method (such as the Show method).
- It’s helpful to know the order in which the form events occur
- Double-clicking a control or form opens an event procedure called FormName.Load-there are two easy techniques in addition toe double-clicking
- Public keyword is not considered a good programming practice Local and block level variables are declared inside a procedure and are always private
- Using a static local variable is better than using a module level variable because it is always best to keep the scope of a variable as narrow as possible
- There are general guidelines for helping to decide where to place declarations *Refer to p. 260 for the Declaration Summary for Variables and Constants table