System.Windows.Threading not working

Question

I am trying to use using System.Windows.Threading; but it gives me

The type or namespace name 'Threading' does not exist in the namespace 'System.Windows`.

I have the latest version of .NET.

Answer 1

It's in WindowsBase.dll, after add the reference, it works!

(if you don't know how to add reference, see this tutorial.)

Answer 2

Please make sure you've added a reference to WindowsBase.dll to your project and then you should be good to go. have a look at - https://msdn.microsoft.com/en-us/library/system.windows.threading.dispatchertimer%28v=vs.110%29.aspx

If you're still having trouble please attach your .csproj file.