[RESOLVED] Exclude checked lines from file

[Migeria]

tags.db

asd||$|blah
qwe||$|jack daniels
zxc||$|exam
qaz||$|fail

checkedListBox1 items

asd
qwe
zxc
qaz

if(checkedListBox1->CheckedItems->Count != 0)
{
	String ^ line, ^ toDelete;
	array<String^>^ seperator = {"||$|"}, ^ seperator2 = {"|$|"}, ^ tag, ^ delete;
	for each(line in IO::File::ReadLines("tags.db"))
	{
	        tag = line->String::Split(seperator, StringSplitOptions::None);
// Why this way? If I remove x++, it become's infinite loop
		for(int x = 0; x <= checkedListBox1->CheckedItems->Count-1; x++) 
		{
			Object^ checked = checkedListBox1->CheckedItems[0];
			if (tag[0] == checked->ToString())
			{
				toDelete = String::Concat(toDelete, tag[0],"|$|");
				checkedListBox1->Items->Remove(checkedListBox1->CheckedItems[0]);
			} else {
				toDelete = String::Concat(toDelete, " ","|$|");
			}
		}
		delete = toDelete->String::Split(seperator2, StringSplitOptions::RemoveEmptyEntries);
		Array::Sort(delete);
		if(Array::BinarySearch(delete, tag[0]) < 1)
		{
			IO::File::AppendAllText("tags.db.temp", line+"\n");
		} else {
			IO::File::AppendAllText("tags.db.temp","");
		}
	}
	IO::File::Copy("tags.db.temp", "tags.db", true);
	IO::File::Delete("tags.db.temp");
}

Supposed to do:
Checked items are NOT included when writing to .temp file (includes only line from .db file which are not checked).

(1) In this, if I check ONLY 1st OR 1st and 1 more item from checkedListBox1: unable to exclude 1st line.
(2) If I check first item and 2 others (or more, all), lines are excluded.
In case only 1 item is left in checkedListBox1, I'm back to (1). =/