Introducing Silverlight Book: Code Update

Introducing Silverlight Book: Code Update

  • Comments 4

If you're reading Introducing Silverlight and are having some trouble with the code in Chapter 8 for the tracking textblocks sample, there's a missing line of code that defines a global variable.

Here's the full C# code for the TextBlocks sample:

   1: using System;
   2: using System.Windows;
   3: using System.Windows.Controls;
   4: using System.Windows.Documents;
   5: using System.Windows.Ink;
   6: using System.Windows.Input;
   7: using System.Windows.Media;
   8: using System.Windows.Media.Animation;
   9: using System.Windows.Shapes;
  10:  
  11: namespace SilverlightProject2
  12: {
  13:     public partial class Page : Canvas
  14:     {
  15:         string strCurrentText;
  16:         public void Page_Loaded(object o, EventArgs e)
  17:         {
  18:             // Required to initialize variables
  19:             InitializeComponent();
  20:             foreach (TextBlock tt in this.Children)
  21:             {
  22:                 tt.MouseEnter += new MouseEventHandler(OnEnter);
  23:                 tt.MouseLeave += new EventHandler(OnLeave);
  24:             }
  25:         }
  26:         public void OnEnter(object sender, MouseEventArgs e)
  27:         {
  28:             TextBlock tt = sender as TextBlock;
  29:             strCurrentText = tt.Text;
  30:             tt.Text = "I am in : " + strCurrentText;
  31:         }
  32:         public void OnLeave(object sender, EventArgs e)
  33:         {
  34:             TextBlock tt = sender as TextBlock;
  35:             tt.Text = strCurrentText;
  36:         }
  37:     }
  38: }

 

And here's what the final result looks like:

image

Many thanks to Jeff Paries for catching this one! :)

Comments
Page 1 of 1 (4 items)
Leave a Comment
  • Please add 7 and 2 and type the answer here:
  • Post