C# removing items from listbox

Question

I have a listbox being populated from a SQLDATA pull, and it pulls down some columns that i dont want like OBJECT_dfj, OBJECT_daskd. The key is all of these being with OBJECT_, is there a way to remove these from the listbox? I cannot change my SQL statement.

i tried this:

 foreach (string item in listBox1.Items)
 {
     string removelistitem = "OBJECT";
     if(item.Contains(removelistitem))
     {
         listBox1.Items.Remove(item);
     }
 }

but it gave me the error:

List that this enumerator is bound to has been modified. An enumerator can only be used if the list does not change.

Answer 1

You can't use an enumerator, you have to loop using an index, starting at the last item:

for (int n = listBox1.Items.Count - 1; n >= 0; --n)
{
    string removelistitem = "OBJECT";
    if (listBox1.Items[n].ToString().Contains(removelistitem))
    {
        listBox1.Items.RemoveAt(n);
    }
}