/// <summary>
/// 注销一对RadioButton与GroupName的关联
/// </summary>
private static void Unregister(string groupName, FIconRadioButton radioButton)
{
if (_groupNameToElements == null)
{
return;
}
lock (_groupNameToElements) {
ArrayList elements = (ArrayList)_groupNameToElements[groupName];
if (elements != null)
{
PurgeDead(elements, radioButton);
if (elements.Count == 0)
{
_groupNameToElements.Remove(groupName);
}
}
}
radioButton.SetValue(_currentlyRegisteredGroupName, null);
}
/// <summary>
/// 注册一对RadioButton与GroupName的关联
/// </summary>
private static void Register(string groupName, FIconRadioButton radioButton)
{
if (_groupNameToElements == null)
{
_groupNameToElements = new Hashtable(1);
}
lock (_groupNameToElements) {
ArrayList elements = (ArrayList)_groupNameToElements[groupName];
if (elements == null)
{
elements = new ArrayList(1);
_groupNameToElements[groupName] = elements;
}
else
{
PurgeDead(elements, null);
}
elements.Add(new WeakReference(radioButton));
}
radioButton.SetValue(_currentlyRegisteredGroupName, groupName);
}
