DynamicMapServiceLayer added through code not recognized by button.

ThomasCox — Tue, 25 Nov 2014 22:22:22 GMT

Please bear with the low level this question is probably at. I am new to the Runtime and wpf xaml. I
believe my question is more wpf/xaml based one. I hope my description that follows is clear enough.

I have developed a prototype app attempting to emulate the mvvm pattern. Between looking at the
toolkit samples and the regular runtime samples, I have implemented a 'toggle visible layer' method in my MapViewModel.cs that is successfully bound to a button on my MainWindow.xaml. This button is handling a feature layer that I add to the application through app.xaml. This is working well. I am able to toggle the layer's visibility through the button.

I want to add another button to handle another layer and leverage the same toggle visible method. I have added the button in MainWindow.xaml and set up the same binding parameters, except of course using the correct layer name. However, the additional layer that I wish to ‘toggle’ is added through code in the MapViewModel as a DynamicMapService Layer from a map package.

The layer I am interested in is successfully added to the map However, the button that I have added to toggle the visibility for this layer is never enabled. I incorrectly assumed that this button would come to life when the layer is added to the map. No such luck.

Is it possible to associate a control with command method using a layer that is added through code as the parameter?

What would be the correct approach to handling this situation?

Any insight would be appreciated.

Re: DynamicMapServiceLayer added through code not recognized by button.

DominiqueBroux — Wed, 26 Nov 2014 09:05:46 GMT

The availability of a button is depending on the way you implemented the underlying action.

If you affected a command to the button, the avaibility is defined by the CanExecute method of the command, so really depending on how you implemented it.

I suggest you look at the 'LayerList' sample which demonstrates how to display a list of layers with the possibility to turn on/off each layer.

Re: DynamicMapServiceLayer added through code not recognized by button.

ThomasCox — Tue, 02 Dec 2014 16:03:20 GMT

Thanks Dominique. I had not looked at the LayerList Sample. Your comment about the CanExecute method helped me see the error of my ways.

Thanks again for your response.

topic DynamicMapServiceLayer added through code not recognized by button. in .NET Maps SDK Questions

DynamicMapServiceLayer added through code not recognized by button.

Re: DynamicMapServiceLayer added through code not recognized by button.

Re: DynamicMapServiceLayer added through code not recognized by button.