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Custom Status Animation with VB.NET

, 7 Oct 2008
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Provide eye-candy to your users with custom animations

Introduction

Remember when something happening in 5 seconds was really quick? Today if something in your application takes more than 5 seconds, your users think the application is locked. Sure I'm exaggerating, but wouldn't it be nice to display something 'eye-catching' while your users are waiting for a long running process to complete? This component uses GDI to draw a series of PNG files onto a form, along with an updatable header and message. Very simple concept, but something that will give your application a professional look. It runs on its own thread and is completely thread-safe, so you can continue with what you are doing while the animation is occurring.

Enjoy!

Using the Code

You can use one of the predefined AnimationData objects, referenced by a corresponding enumeration, or you can create a custom AnimationData object outside of the component and pass it in. I prefer using PNG files for the individual frames (images) of the animation as they support alpha-blending.

CancelClicked Event

When you allow the cancel link to be shown (using the AllowCancel property), you can intercept the cancel and provide a dialog with the CancelClicked event to ask if you really want to cancel the animation. After the user clicks yes, you can do whatever is necessary in the application to stop the process, then set e.Cancel = True in the eventargs. This will be passed back to the component to stop the animation. If you pass back False (e.Cancel = False), then the animation will continue.

AnimationData.FromSingleImage Method

You can create an AnimationData object from a single image that includes all of the frames of the animation. To do this, add the image to your project and call the AnimationData.FromSingleImage method. Tell the method how many frames the animation contains and it will split the single image up into the individual frames and populate the images list. Specifying a transparency color will make that color transparent in the image.  When the method returns, set the AnimationData properties appropriately for your needs and call the Show method.

History

  • 26th September, 2008: Initial post
  • 29th September, 2008: Added CancelClicked event description
  • 3rd October, 2008: Updated code to fix fast Cancel
  • 7th October, 2008: Added AnimationData.FromSingleImage method description

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Greg Osborne

United States United States
Visual Basic Developer since version 1.0
Java web developer
Currently developing in vb and c#

Comments and Discussions

 
QuestionConverting solution PinmemberMike 200528-Oct-13 2:53 
QuestionWhy the form? PinmemberElfman_NE22-Apr-10 10:21 
GeneralMessage to user comes up behind animation Pinmemberyet another programmer23-Sep-09 4:55 
GeneralHelp Pinmemberfuxiurong_200120-Oct-08 22:44 
AnswerRe: Help PinmemberGreg Osborne21-Oct-08 2:42 
GeneralCancel not working PinmemberPSU Steve3-Oct-08 4:53 
AnswerRe: Cancel not working PinmemberGreg Osborne3-Oct-08 5:21 
GeneralRe: Cancel not working PinmemberPSU Steve3-Oct-08 6:31 
AnswerRe: Cancel not working PinmemberGreg Osborne3-Oct-08 6:51 
GeneralRe: Cancel not working PinmemberPSU Steve3-Oct-08 7:00 
QuestionMyClass. versus Me. PinmemberRVW29-Sep-08 7:06 
AnswerRe: MyClass. versus Me. PinmemberGreg Osborne29-Sep-08 7:25 
GeneralRe: MyClass. versus Me. PinmemberGreg Osborne29-Sep-08 7:32 
GeneralRe: MyClass. versus Me. PinmemberRVW29-Sep-08 7:38 
QuestionAny C# Code ? PinmemberPankajkumar Nikam29-Sep-08 5:07 
AnswerRe: Any C# Code ? PinmemberGreg Osborne29-Sep-08 5:41 
GeneralRe: Any C# Code ? PinmemberPankajkumar Nikam29-Sep-08 6:15 
GeneralWell Done Greg PinmemberDumpsterJuice29-Sep-08 2:30 
GeneralVery Nice Pinmembersam.hill26-Sep-08 17:27 

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