Question

C# winform中关于两个ListBox清除selectIndex的问题。

我想在listBox1中选中了一个选项就清除对listBox2中的选定，在listBox2中选中了一个选项就清除对listBox1中的选定，想用系统提供的selectIndexChanged方法。
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
listBox2.SelectedIndex = -1;
}
private void listBox2_SelectedIndexChanged(object sender, EventArgs e)
{
listBox1.SelectedIndex = -1;
}
这样的话，在listBox1中选中一个选项。listBox2中的SelectIndex就会变成-1，然后程序发现listBox2中的SelectIndex发生了改变就会进入listBox2_SelectedIndexChanged把listBox1中的SelectIndex也变成-1。。。。。求帮助，不知道怎么办了。= =
找到了，正确的解决方法是这样的
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
listBox2.SelectedIndexChanged +=listBox2_SelectedIndexChanged;
listBox2.SelectedIndex = -1;
listBox2.SelectedIndexChanged +=listBox2_SelectedIndexChanged;
}
private void listBox2_SelectedIndexChanged(object sender, EventArgs e)
{

listBox1.SelectedIndexChanged +=listBox1_SelectedIndexChanged;
listBox1.SelectedIndex = -1;
listBox1.SelectedIndexChanged +=listBox1_SelectedIndexChanged;
}

Answer 1

这样简单
rightlistbox.Items.AddRange(leftlistbox.Items);
leftlistbox.Items.Clear();

追问

我只是要使选中项不再被选中，不是要删除选中项里面的值啊