Question

I’m new to Silverlight and used to code in VB.Net before. Now I’m trying to assign RepeatButtons’ Interval values in a single statement but it sets zero.

rbtUp.Interval = rbtLeft.Interval = rbtCenter.Interval = rbtRight.Interval
= rbtDown.Interval = interval

This works fine in c# but not in vb.net.

Answer 1

You’re confusing VB.Net with C#.

You can’t do what you’re trying to do in VB.Net. You need to write multiple statements:

rbtUp.Interval = interval
rbtLeft.Interval = interval
rbtCenter.Interval = interval
rbtRight.Interval = interval
rbtDown.Interval = interval

What happens in your case is that only the first equals sign is the assignment operator, the subsequent ones is the comparison operator. In equivalent C# it would be like this:

rbtUp.Interval = rbtLeft.Interval == rbtCenter.Interval == rbtRight.Interval == rbtDown.Interval == interval;

Which is clearly not what you wanted to do.

It also looks like you don’t have Option Strict turned on (since the comparison operator returns a Boolean and Interval is likely an Integer, your code should show a compiler error with Option Strict On when assigning a Boolean to an Integer).