Why use ExpandoObject in C#

Because it is good!

checkout the discussion on stackoverflow:
http://stackoverflow.com/questions/1653046/what-are-the-true-benefits-of-expandoobject

windows 8 set focus

It seems that there is no setFocus() method anymore. Instead, windows 8 includes the Windows.UI.Xaml.FocusState for different focus state, like: pointer, keyboard, etc.

The usage would be like:
ViewObjectName.Focus(Windows.UI.Xaml.FocusState.Pointer);

Run a program as administrator

http://www.intowindows.com/run-program-as-administrator-in-windows-8/


1. press windows to go to start screen
2. open search screen to search the program that you want to run. (i.e. cmd.exe)
3. the search result will be shown on the left hand side.
4. right click on it (tile of cmd.exe)
5. click on advanced
6. check run as adminstrator

google maps query API

http://mapki.com/wiki/Google_Map_Parameters

Launch Browser with an URI from a win8 app

http://zubairahmed.net/?p=266

Here is the code snippet:

 Uri justUri = new Uri("http://www.google.com");  
 await Windows.System.Launcher.LaunchUriAsync(justUri);