question: which statement has NO effect

[roadrunner]

I was recently asked a multiple choice question: According to the sample code, which one of the following statements has NO effect and should be moved to another line to accomplish its purpose?
Code:
dim tb as New TextBox
g_row as Integer = 0
tb.Text = CType(g_row, String)
tb.Location = New Point(tb.Location.X, g_row * tb.Size.Height)
tb.BringToFront()
g_row += 1
Me.Listbox1.Parent.Controls.Add(tb)

A. g_row += 1
B. tb.BringToFront()
C. tb.Text = g_row
D. tb.Location = New Point(tb.Location.X, g_row * tb.Size.Height)
E. Me.Listbox1.Parent.Controls.Add(tb)

I don't know why C is there. What do you think the answer is and why?

 

[JuggaloBrotha]

this is obviously homework, so i'll explain it a little and let you come up with the answer:

first it declares tb as a textbox
then it declares g_row as an integer
now it's assigning the g_row to the textbox's text property
then it gives the textbox a location and brings it to the front
then it increments the g_row integer
and finally it adds the textbox to the listbox

i hope that helps clear it up

 

[roadrunner]

re: from roadrunner brainbench practice

This was a question from a brainbench practice test. It has no points associated with it. It was done on my own accord to sharpen my programming efficiency.

 

[JuggaloBrotha]

so which answer did you come up with? (not that it matters much)

 

[TechGnome]

The answer is B. The control isn't on the form yet, there's nothing to move it in front of yet.... should be moved to after the Controls.Add call.

-tg

 

[JuggaloBrotha]

yup, you got it

 

[kkemerait]

Brainbench, Prove IT and others .. are useless
Design Lunacy: BrainBench, Prove IT, et. al.