Category Archives: xaml

Solving Xaml Internal Error error WMC9999

There I was, just devving along, when I hit F5 and this error pops up: C:\Program Files (x86)\MSBuild\Microsoft\WindowsXaml\v14.0\8.2\Microsoft.Windows.UI.Xaml.Common.targets(264,5): Xaml Internal Error error WMC9999: Object reference not set to an instance of an object. What does that even mean? Google shows me a variety of things that may cause this. But none of them helped me. …

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Converting a LOB W8.1 app to W10 – Part 4

And we’re back with more changes between W10 and W8.1 apps. ‘Random’ error I’m getting a series of ‘random’ crashes on one of our screens. One of the errors I’m seeing is some rubbish about an error 0xC0000602 in Windows.UI.Xaml. I’ve read that this error could be occuring from IValueConverters that returned an incorrect value. …

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W10: Getting a grouped variable sized GridView to do what its supposed to do.

Got a GridView with a VariableSizedWrapGrid and groups? Want it working on W10/UWP? Yea, that doesn’t quite work out of the box now does it… Took me a bit, but was able to get it to do its job. Getting a GridView up and running with some groups in an uniform grid is definitely possible …

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Converting a LOB W8.1 app to W10 – Part 3

Time for more work on getting our LOB app converted to an UWP. First thing we needed to do in order to get everything to work again was adding the various build configurations again. When migrating the projects, these were lost. (I had to add them anyways to the new PCL’s, which were created from …

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