从TabControl中删除选项，其中索引不是

Question

I am trying to remove all tabs from a TabControl where the tab index is not a specified index.

I have this so far:

for (int i = tabcontrolOptions.TabCount - 1; i >= 0; i--)
{
    if (i != tabNo)
    {
        tabcontrolOptions.TabPages.RemoveAt(i);
    }
}

But that removes all tabs, and not the specified tabNo. What am I doing wrong?

Answer 1

When you remove a tab, the tabs get reindexed . Actually, what you're doing shouldn't be affected by that. But try the below anyway, maybe it will help.

Refer to the tab object explicitly, not by index:

var tabToKeep = tabcontrolOption.TabPages[tabNo];
for (int i = tabcontrolOptions.TabCount - 1; i >= 0; i--)
{
    if (tabcontrolOption.TabPages[i] != tabToKeep)
    {
        tabcontrolOptions.TabPages.RemoveAt(i);
    }
}