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Congratulations! You've learned the basics. Now it’s time to flex your newfound knowledge, borrow from the concepts you’ve learned thus far, and write a simple application. You'll save the world by allowing a mobile user to type in a special sequence of numbers every 108 minutes. If you get stuck, watch just enough of the next video to get un-stuck.

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The Discussion

  • User profile image

    nice HW, was a good brush up of things done before....could have been little tougher though Smiley

    Thanks Bob!!

  • User profile image

    Thanks for the homework!  Should have made it a bit harder though.  Took me 2 minutes.  Probably because you are awesome at explaining everything earlier :)  Cheers.

  • User profile image

    It took me a while to complete this homework assignment because time went forward and back a few times.

  • User profile image
    Joseph Clover

    Here is my code, any good? :)
    namespace Hello_World{  
     public partial class MyFirstXamlPage : PhoneApplicationPage    { 
           public MyFirstXamlPage()        { 
            private void button1_Click(object sender, RoutedEventArgs e)        {
                if (checkCode(secretCode.Text))
                    setText(outputText, "YOU SAVED THE WORLD");
                     setText(outputText, "YOU KILLED THE WORLD");      
            private Boolean checkCode(string theCode)        { 
               if (theCode == "42 333 495 4493 293")            { 
                   return true;          
                }            else            { 
                   return false;          
            private void setText(TextBlock textBlock, string textInput)        {
                textBlock.Text = textInput;

  • User profile image
    Joseph Clover

    @Joseph Clover: sorry about that, formatting seemed to have failed. Here is a clean version :)

  • User profile image
    Martin N.

    Thanks Bob! Great lessons!

  • User profile image
    Brett P.

    I love the LOST reference xD

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