private void OnChildCheckedChanged(bool?oldValue, bool?newValue)
{
switch (oldValue)
{
case null:
Interlocked.Decrement(ref _unknownCount);
break;
case true:
Interlocked.Decrement(ref _checkedCount);
break;
}
switch (newValue)
{
case null:
Interlocked.Increment(ref _unknownCount);
break;
case true:
Interlocked.Increment(ref _checkedCount);
break;
}
_checkedChanger = CheckedChanger.Child;
try
{
if (_unknownCount > 0)
{
IsChecked = null;
}
else if (_checkedCount > 0)
{
IsChecked = _checkedCount == GetChilds().Length ? (bool?)true : null;
}
else
{
IsChecked = false;
}
}
finally
{
_checkedChanger = CheckedChanger.Manual;
}
}
private void OnChildCheckedChanged(bool? oldValue, bool? newValue)
{
switch (oldValue)
{
case null:
Interlocked.Decrement(ref _unknownCount);
break;
case true:
Interlocked.Decrement(ref _checkedCount);
break;
}
switch (newValue)
{
case null:
Interlocked.Increment(ref _unknownCount);
break;
case true:
Interlocked.Increment(ref _checkedCount);
break;
}
_checkedChanger = CheckedChanger.Child;
try
{
if (_unknownCount > 0)
IsChecked = null;
else if (_checkedCount > 0)
IsChecked = _checkedCount == GetChilds().Length ? (bool?)true : null;
else
IsChecked = false;
}
finally
{
_checkedChanger = CheckedChanger.Manual;
}
}
