TECH TO THE POINT

Issue: How to change  background color for all selected items in Android Fix: ( Xamarin  - c# syntax - Android should work with little change)      myListView . ItemClick   += ( sender ,   e )   = >   {                 myListView . GetChildAt (   e . Position ) . SetBackgroundColor (   Color . White ) ;                              } ; This will show the color change on all selected items. If you use myListView _ItemSlected event -> The color only shows like a highlight and when you select the next item the background color changes back to default.  

Issue: Laptop (in my case Asus) Touch Screen stopped working all of the sudden or after a windows update or mistakenly uninstalled an USB driver from device manager without knowing Touch screen driver is an USB interface. FIX: Info. in this post helped. http://answers.microsoft.com/en-us/windows/forum/windows_8-hardware/touch-screen-not-working-for-asus-laptop/57147530-21e4-4856-92ee-8795edaa8b03 In short, In Windows 8, Press Win Key + X  - > Select 'Control Panel' -> Search for 'Trouble shooting' -> Select 'Troubleshooting history' -> then select 'Troubleshooting' from top bar (part of path) -> Select 'Hardware and Sounds' -> Select 'Hardware and Devices'  - This will run the 'Find and Fix problems with the devices and hardware' - wizard .  - The wizard will popup 'Enable ... USB driver xxxxx ,  Apply this Fix?' - Select Apply this Fix. It might show this twice - Select apply this Fix. ...