listview / add,remove and find during threads

[Drstein99]

I am removing and adding items from my list view in other threads.

 

Sometimes the program will try to run the enumerator to seach the list, and during that it might be adding or removing an item, which throws an error.

 

Dim myEnum As IEnumerator = internalListView.Items.GetEnumerator()

 

Do While (myEnum.MoveNext() = True)

process

loop

 

 

How do i iterate through the list and lock it just for a moment while nothing can add or remove to stop throwing errors?

[PlausiblyDamp]

You shouldn't be updating the UI elements from multiple threads, all UI modifications should be done from the application's main thread.

 

http://www.xtremedotnettalk.com/showthread.php?t=87035&highlight=invoke

http://www.xtremedotnettalk.com/showthread.php?t=87775&highlight=invoke

[AlexCode]

As this can be applyed to main thread processes too... you should allways try not to relly on UI controls, thry're mean! :mad:

 

Seriouslly, allways apply you data modifications directly to your datasource, this way you avoid, for this problem specially, threading problems, along with some other ones than only appear after the applications is deployed! :p

 

Alex :p