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Can't Delete .vtpk file after loading

Question asked by srgrosenick on Jul 9, 2019

Hello, 

 

I'm working on basemap control in a Xamarin Forms app targeting UWP. I am using v100.4.0. The app has the ability to load any .vtpk's and .tpk's that are in the device's My Documents folder. I want the user to be able to remove any of these .vtpk or .tpk files from the app if they would like too.

 

I'm currently able to add/remove any .tpk's. I am also able to load and delete .vtpk's, but only as long as I don't turn that basemap on. It seems that once I load a vector tile layer, the file stays locked in memory. I have tried turning on a .vtpk and then switching to another basemap, but I still cannot delete the file. I am getting a System.IO.IOException saying "The process cannot access the file xxx.vtpk because it is being used by another process"

 

Again, I am able to load a .tpk file, turn it on and off, then delete it with no problem. It just gives me that error if I try to delete a .vtpk once I have turned it on.

 

Any ideas on how to remove the vector tile layer from memory once I have switched to another basemap? Thanks.

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