Scroll text and images together question

Fri, 24 Aug 2007 12:19:13 Z

Hi,

i have a question regarding text and images that need to be scrolling together.

(like a ticker tape)

In the past (windows forms) is created a usercontrol that made a bitmap that consists of text and images.

this bitmap was copied to the visible part of the usercontrol.

My qs now is how to tackle this in wpf. Should i create a bitmap as in the previous version, or is the current system so better that the best way is to use elements that are moved...

Regards,

Willie Jan

Scroll text and images together question

Mon, 27 Aug 2007 08:24:46 Z

Hello, is this what you want?

</StackPanel>

</ScrollViewer>

Scroll text and images together question

Wed, 29 Aug 2007 08:14:07 Z

Hi,

what I tried is using a Grid,

But when the control is hosted into for example a Border Control, it will resize automatically to the measurements of the border size, and it must retain the full size...

besides that I have to wait for the layout engine to have calculated the pixels before i can add a animation.

is the scrollviewer able to get the same speed as using a grid to create a ticker tape?

The speed of a grid running is ok.

i will have a look at the scrollviewer.

Thanks for your help.

Scroll text and images together question

Wed, 29 Aug 2007 08:30:47 Z

Border or Grid won't make your content scroll. If you need scrolling, you'll need a ScrollViewer. You can put your Border insider the ScrollViewer:

<Border>

...

</Border>

</ScrollViewer>

Scroll text and images together question

Wed, 29 Aug 2007 09:32:01 Z

I create a animation which scrolls the grid through the border control. with clipping turned on, it looks like a ticker tape ...

Scroll text and images together question

Thu, 06 Sep 2007 00:24:41 Z

Are you looking for something like this:

Code Snippet

<TextBlock>This is my looooooooooooooooooooooooooooooooooooooong scrolling text. It goes on and on and on</TextBlock>
<Image Canvas.Left="570" Source="c:\image.jpg"/>
</Canvas>

</Border>

</Canvas>

Scroll text and images together question

Fri, 07 Sep 2007 07:22:03 Z

I think steve, that's the way to go...

I have to do some performance tests to see how it works out.

Maybe i'm still a little affraid of all performance problems under VS 2005 with elements and moving them around

looks like the direct-x under the new framework is doing some good job here...

thanks.

Scroll text and images together question

Mon, 10 Sep 2007 20:12:19 Z

Since the sample above is using RenderTransform you don't have to worry about triggering a layout pass every time you move the elements, so performance should be pretty good