A later answer, but because no one gave this solution… If you do not want to set the header on the HttpClient instance by adding it to the DefaultRequestHeaders, you could set headers per request. But you will be obliged to use the SendAsync() method. This is the right solution if you want to reuse … Read more
To mark a lambda async, simply prepend async before its argument list: // Add a command to delete the current Group contextMenu.Commands.Add(new UICommand(“Delete this Group”, async (contextMenuCmd) => { SQLiteUtils slu = new SQLiteUtils(); await slu.DeleteGroupAsync(groupName); }));
At the lowest level, WinRT is an object model defined on ABI level. It uses COM as a base (so every WinRT object implements IUnknown and does refcounting), and builds from there. It does add quite a lot of new concepts in comparison to COM of old, most of which come directly from .NET – … Read more
The await inside your asynchronous method is trying to come back to the UI thread. Since the UI thread is busy waiting for the entire task to complete, you have a deadlock. Moving the async call to Task.Run() solves the issue. Because the async call is now running on a thread pool thread, it doesn’t … Read more
When getting this error through Visual Studio it was because there was a signing certificate setup to match the computer it was originally developed on. You can check this by going to the project properties > signing tab and checking the certificate details. You can uncheck “Sign the ClickOnce manifests” to disable signing. If you … Read more