Collection was modified

yeah i kinda realized that was probably was happening about
2 minutes
after i sent the email ;)

however, i tried fixing it by using a 2nd variable to store
collection:

			ISet tmpcampaigns = campaigns;
			foreach (Campaign c in campaigns)
			{
				if (c.Disabled == true)
				{
					tmpcampaigns.Remove(c);
				}
			}

but it still gives me the same error. I dont understan why
it would error now.

thanks

Ian

On 5/26/06, Steven A Smith <steven.smithaspalliance.com> wrote:
> The collection indexer can get confused if you modify
the collection in the
> middle of a foreach.  The preferred way to do what
you're doing is to get
> the Keys and loop through them, rather than foreach-ing
through the
> collection directly.
>
> Steve
>
> -----Original Message-----
> From: merkimerk.com [mailto:merkimerk.com] On Behalf Of Ian Lipsky
> Sent: Friday, May 26, 2006 6:05 PM
> To: aspnetaspadvice.com
> Subject: [aspnet] Collection was modified
>
> can someone please tell me why this error is occuring?
>
>
> private ISet packages = new HybridSet(); private ISet
campaigns = new
> HybridSet();
>
> private void Page_Load(object sender, System.EventArgs
e)
>         {
>                 packages = user.Packages;
>                 campaigns = user.Campaigns;
>                 BindControls();
>         }
>
>
> private void BindControls()
>     {
>
>         foreach (Package p in packages)
>                 {
>                        
campaigns.RemoveAll(p.Campaigns);
>                 }
>
>
> ==>     foreach (Campaign c in campaigns)
>                 {
>                         if (c.Disabled == true)
>                         {
>                                 campaigns.Remove(c);
>                         }
>                 }
>     }
>
> it fails on the 2nd foreach loop right on the foreach
line i marked.
> I've tried wrapping the statements in lock() which i
found suggested on one
> site but it makes no difference. The first foreach loop
works fine.
>
> ian
>
>
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>
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