[英]Unchecking wrong item in CheckedListBox
I'm trying to make an option, to remove all unchecked items in a checked listbox. 我正在尝试一个选项,以删除选中的列表框中的所有未选中项。 Everything is going fine, but when I get 2 or more items with the same name, it goes wrong.
一切都很好,但是当我得到两个或多个同名商品时,它就出错了。
For example: I got 3 items in the listbox with the same name, with the first one checked. 例如:我在列表框中获得了3个具有相同名称的项目,其中第一个已选中。 Now I run the event, but now the last 2 are removed, and the first one is unchecked...
现在我运行该事件,但是现在删除了最后2个,并且未选中第一个...
private void removeAllUncheckedProcessesToolStripMenuItem_Click(object sender, EventArgs e)
{
int i = 0;
while (true)
{
if (clbInstant.Items.Count - i == 0)
{
break;
}
if (clbInstant.GetItemCheckState(i) == CheckState.Checked)
{
i++;
}
else
{
clbInstant.Items.Remove(clbInstant.Items[i]);
}
}
}
If I run the debugger, it enters the loop, does i++
, repeats the loop again, goes to the else, before the else, checkstate of clbInstant(0)
is checked, the checkstate of clbInstant(1)
is unchecked and i
is 1. But after the else, I got 2 items remain, with both unchecked. 如果我运行调试器,它将进入循环,执行
i++
,再次重复循环,转到else,在else之前,检查clbInstant(0)
的检查状态,不检查clbInstant(1)
的检查状态,并且i
为1但是,在其他情况之后,我剩下2个项目,并且都未选中。 Now it runs the loop for the second last time, and it removes the last unchecked item, with the result of 1 unchecked item remain... 现在,它第二次运行循环,并删除最后一个未选中的项目,结果剩下1个未选中的项目...
If I have items with different names, I got no problem at all... 如果我有不同名字的物品,我一点问题都没有。
Why dont you try this instead. 你为什么不试试这个呢。
foreach(object itemChecked in checkedListBox1)
{
if(checkedListBox1.GetItemCheckState(checkedListBox1.Items.IndexOf(itemChecked))== CheckState.UnChecked)
checkedListBox1.Items.Remove(itemChecked)
}
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