karakav
asked on
.NET: Safety with foreach iterations
I heard that when iterating through a collection using foreach statement it is not wise to change the content of the collection. Does this mean that one cannot change properties of the collection entries. I mean that if, for instance, I have Employee objects in a collection, can I change some attribute of each Employee while looping. I know it is possible syntaxically and the compile won't say anything. Is it a good practice.
philipjonathan
Changing property of elements is ok. What you cannot do is adding or removing collection elements
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if you want to delete an object run the loop backwards.
The following will work fine:
The following will work fine:
for(int i=collection.Length-1; i >=0; i--)
{
if(i%2)=0
//delete the object
}
ASKER
Thanks.