November, 2009

This one’s going to be long, but for those of you who’ve felt the first 3 in this series were too easy I promise this one’s tougher J . Let’s say you want to list all the customers from a table in a ComboBox, and update the UI based on which one...

What’s wrong with the following WPF code? Class Window1 Sub OK_Click(sender As Object , e As RoutedEventArgs) Handles OK.Click MsgBox( "Button Clicked" ) End Sub End Class < Window x : Class ="Window1" xmlns ="http...

In this post, I’ll continue on with coding the new playlist shuffler. If you haven’t read part 1 yet, I highly recommend it so that this post will make more sense. J Code for the controls (continued) The Title TextBox When the title changes,...

Way back in October 2007, I wrote up a few posts ( here and here ) on my experiments with the Windows Media Player object model. The problem I was trying to solve was that, when I had a playlist set to “shuffle,” WMP would break up songs that should always...

In yesterday’s post we saw that the use of the wrong comparison operator with Nothing in an If block can lead to surprising results. Let’s look at a slightly different case today: Dim x As Integer = Nothing If x = Nothing Then MsgBox( ...

Microsoft has this neat mailing list called “Spot the Bug” where developers can send interesting snippets of code that look correct but actually have subtle bugs in them. The puzzles are a lot of fun and I’ve always thought it’d be a fun thing to try...