?
Solved

Why am I getting an out of rang exception with the following "for loop"?

Posted on 2006-11-02
4
Medium Priority
?
248 Views
Last Modified: 2010-04-16
           int dropDownCount = actionMenu.DropDownItems.Count;
            if(dropDownCount > 6)
            {
                for (int index = 6; index < dropDownCount; index++)
                {
                    actionMenu.DropDownItems.RemoveAt(index);

                }
            }

Thanks.
0
Comment
Question by:lapucca
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 11

Accepted Solution

by:
Expert1701 earned 1000 total points
ID: 17864194
If you are trying to remove all but the first six items, try the following code:

  int dropDownCount = actionMenu.DropDownItems.Count;
  for (int index = 6; index < dropDownCount; index++)
    actionMenu.DropDownItems.RemoveAt(6);

Or,

  int dropDownCount = actionMenu.DropDownItems.Count;
  for (int index = (dropDownCount - 1); index >= 6; index--)
    actionMenu.DropDownItems.RemoveAt(index);
0
 
LVL 11

Expert Comment

by:Expert1701
ID: 17864198
Or even,

  while(actionMenu.DropDownItems.Count > 6)
    actionMenu.DropDownItems.RemoveAt(6);
0
 

Author Comment

by:lapucca
ID: 17864199
Nop, I was trying to remove all items after the 6th item.  I got it working now.  You see, the count is changing with each item I remove so it eventually ran out and got the exception error.  Thanks.
0
 
LVL 30

Expert Comment

by:anarki_jimbel
ID: 17864204
I believe the reason is that you alter underlying collection, and therefore alter the count of items.

Try to use 'while' loop:

while(actionMenu.DropDownItems.Count>6){
    actionMenu.DropDownItems.RemoveAt(6);
}
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We all know that functional code is the leg that any good program stands on when it comes right down to it, however, if your program lacks a good user interface your product may not have the appeal needed to keep your customers happy. This issue can…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
Suggested Courses
Course of the Month13 days, 23 hours left to enroll

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question