Auto window scrolling....

06-13-2009 8:18 PM |

 Hi All,

 I have a Silverlight canvas which has draggable objects on it, as the canvas width is greater than the horz. res I have horz. scroll bars.

I have a peice of JS that is updated with the location of a card and if it is being dragged then the window will auto scroll accordingly, the problem is that when I drag an object to the right, the scroll rate is way to quick and jagged, but when I drag a object left the scroll rate is very slow.

Here is the JS;

function getSilverlightMouse(xCoor) {
        window.scrollTo(xCoor, 0);
    }

I use the following code in the XAML code behind to call the JS (this code sits in my object_MouseMove method);

            If point.X > 15 Then
                HtmlPage.Window.CreateInstance("getSilverlightMouse", point.X - 15)
            Else
                HtmlPage.Window.CreateInstance("getSilverlightMouse", 0)
            End If

 Does anyone know how to improve the above code so that scrolling either to the left or right will be done at the same rate? Or how to make things more smooth?

I've seen a scrollby JS method, but I'm not sure this offers me any benefits.

Cheers

Carl
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