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Progress Bars

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Progress Bars, Displaying progress bar while program is running

scalt	9 Dec, 2007 - 01:03 PM Post #1
D.I.C Head Joined: 22 Nov, 2007 Posts: 114 Thanked: 3 times Dream Kudos: 25 My Contributions	Hi I have implemented two progress bars in my project to let the user know how far through processing a file the program is, as well as how far through the batch of files it is. In theory these two bars work fine, except that when my program starts processing the files the window goes blank and the bars aren't displayed. When the program is done, everything returns to normal and the bars are displayed once again (both at 100%). Does anyone know how I can prevent this from happening (I want the bars to be displayed throughout the entire operation) I can't really post code due to the size of the project, but if you want something specific I'll put it up. Thankyou This post has been edited by scalt: 9 Dec, 2007 - 01:36 PM
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Martyr2	RE: Progress Bars 9 Dec, 2007 - 04:53 PM Post #2
Programming Theoretician Joined: 18 Apr, 2007 Posts: 5,660 Thanked: 313 times Expert In: C/C++, Java, VB, VB.NET, C#, PHP, Web Development, HTML & CSS, Javascript My Contributions	What is most likely happening is that you are running an intensive process (file processing) on the same thread as the user interface with the progress bar. If you are going to be doing some heavy work like that, it is wise to launch the file reading and processing in a separate thread as to keep the user interface responsive and drawing itself. That way you can keep the progress bar working as it should while all that work is being taken care of in the background on a separate thread of execution. I hope this makes sense. This post has been edited by Martyr2: 9 Dec, 2007 - 04:54 PM
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scalt	RE: Progress Bars 9 Dec, 2007 - 07:43 PM Post #3
D.I.C Head Joined: 22 Nov, 2007 Posts: 114 Thanked: 3 times Dream Kudos: 25 My Contributions	Thanks for that, I'll give it a go
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