VB2005 express
how do i make a 'for' loop iterate DOWN (3 - 2 - 1 - 0) rather than UP (0 - 1 - 2 - 3)? 'i' is the flag value such as 8212.

h = 2 ^ dmflags_checklist.Items.Count

For k = 0 To dmflags_checklist.Items.Count - 1
j = i - h
If j < 0 Then
dmflags_checklist.SetItemCheckState(k, CheckState.Unchecked)
j = i + h
h = h \ 2
ElseIf j > 0 Then
dmflags_checklist.SetItemCheckState(k, CheckState.Checked)
h = h \ 2
End If
Next
this snippet is supposed to take a bitmap # such as 8212 and set the checkstate to checked in the flag checklist when the value is positive. BUT i have to work from last index to first for it to work the way i want it to.

or am i barking up the wrong tree?

__________________
--Chris

In C++ that would be:
for (int i = dmflags_checklist.Items.Count; i > 0; i--)

so in VB it could be
For i = dmflags_checklist.Items.Count - 1 To 0

I don't know VB but just try it

well do know that it doesnt like
For i = dmflags_checklist.Items.Count to 0 (totally skips for loop)

tried yours...
same thing.

all the code i provided does is check the ones that make j positive because it goes up not down.

Hmm, well then you have to hack it:

then use x as your iterator

EDIT: I noticed you already had a j in your code so I changed it to x

If you mean making a loop count backwards then use 'step'
Ex. For i = 10 To 0 Step -1, this deducts 1 from i each time the loop completes, you can change the step value, default is 1.

I am not sure if thats what you were trying to do.

Waheed

@ waheedahmed : wow it worked thankee sir

do
code goes here
also here you need to code variable - 1
Loop Until variable = the number you wish to stop

These is using Visual Basic.net let me know if this help you

How can I write in a listbox using an array with out going out of bound. This happen because I'm reading from a textbox using split and when I try to add the chararacter that are in the array to the listbox it said array out of bound. I think it is because in the loop the blank spaces are increasing the counter but the array really have less character inside. What I would like to do is subtract 1 in each loop so when the loop finish it my other variable that I'm going to use for my other loop to show the characters would be representing only the characters and no the spaces.

obviously there are more than 1 ways of doing things in VB. however, which of these ways will be most efficient for breaking down additive binary sequences such as 8212 and displayed by unchecking or checking items on a checkbox listbox?