In my CheckedListBox
app I want to allow only a single item to be checked.
I have these properties already set
checkOnClick = true;
SelectionMode = One;
Any advise will be appreciated
In my CheckedListBox
app I want to allow only a single item to be checked.
I have these properties already set
checkOnClick = true;
SelectionMode = One;
Any advise will be appreciated
uncheck all other items in ItemCheck event as below :
private void checkedListBox1_ItemCheck(object sender, ItemCheckEventArgs e) {
for (int ix = 0; ix < checkedListBox1.Items.Count; ++ix)
if (ix != e.Index) checkedListBox1.SetItemChecked(ix, false);
}
the best way to do this is like this:
private void checkedListBox1_ItemCheck(object sender, ItemCheckEventArgs e)
{
if (e.NewValue == CheckState.Checked && checkedListBox1.CheckedItems.Count > 0)
{
checkedListBox1.ItemCheck -= checkedListBox1_ItemCheck;
checkedListBox1.SetItemChecked(checkedListBox1.CheckedIndices[0], false);
checkedListBox1.ItemCheck += checkedListBox1_ItemCheck;
}
}
no looping is always better.