topic Re: MouseWheelEvent in ArcGIS API for Silverlight Questions

MouseWheelEvent

TroyProctor — Mon, 04 Feb 2013 15:04:27 GMT

Hi,
I'm trying to get the MouseWheel Event to fire for a map and it's not working. I'm not sure what I might be missing. I'm trying to disable the application from zooming to a scale less than 1:500, but I still want the service to be able to zoom closer for another application.

Thanks for the help,
Troy

XAML:
<esri:Map x:Name="Map" MouseClick="QueryPoint_MouseClick" IsLogoVisible="False" SnapToLevels="True" MouseWheel="MouseWheel_MaxZoom">

C#:
private void MouseWheel_MaxZoom(object sender, MouseWheelEventArgs e)
        {

            if (e.Delta > 1)
            {
                MessageBox.Show("You are using the Mouse Wheel");
            }

        }

Re: MouseWheelEvent

DominiqueBroux — Wed, 06 Feb 2013 16:00:55 GMT

What is not working exactly?

Most generally for limiting the zoom in or zoom out scale you have to set the MinimumResolution and or the MaximumResolution of the map.
Though not sure if this can help in your use case.

Also take care that setting SnapToLevels to true limits as well the map resolution to the resolutions of the tiled layer. This might also explain your issue.

Re: MouseWheelEvent

TroyProctor — Fri, 08 Feb 2013 14:41:39 GMT

I had expected the following message to appear when using the mouse wheel on the map, "You are using the Mouse Wheel", but it never does.

I was able to set the MinimumResolution(.4) on my map and that resolved my issue.

Thanks for your help!

Troy