How to clone a KmlLayer including loaded KmlDataSet?

SokoFromNZ — Mon, 10 Jul 2023 14:01:56 GMT

Hi,

I've implemented myself a global/static KmlLayer cache () as loading its data from the web can take a long time.

When I add the instance from the cache to a MapView

MapView1.Map!.OperationalLayers(_staticCache.First(k => k.Dataset?.Source == uri);

all is fine.

But if I do this to a second time:

MapView2.Map!.OperationalLayers(_staticCache.First(k => k.Dataset?.Source == uri);

I get an "Object already owned" exception.

So far so good...I thought...then I just clone the already loaded instance of the cache before I add it to the MapViews...

MapView1.Map!.OperationalLayers((_staticCache.First(k => k.Dataset?.Source == uri).Clone()); MapView2.Map!.OperationalLayers((_staticCache.First(k => k.Dataset?.Source == uri).Clone());

But the clones status (of the Dataset) is `NotLoaded` and the data is downloaded again from the web!

Why is the loaded data not cloned? I haven't found any way to clone/copy or use KmlData once loaded from the web multiple times. How do I do that?

Thanks

Soko

Re: How to clone a KmlLayer including loaded KmlDataSet?

SokoFromNZ — Fri, 11 Aug 2023 09:50:21 GMT

Can nobody give me a hint here? Its really a bad thing to download the same data multiple times just to show them in different maps!

topic How to clone a KmlLayer including loaded KmlDataSet? in .NET Maps SDK Questions

How to clone a KmlLayer including loaded KmlDataSet?

Re: How to clone a KmlLayer including loaded KmlDataSet?