这是我的解决方案。这并不完美,但解决了问题: 我发现事件SystemEvents.UserPreferenceChanged
的订阅/取消订阅方法是OnHandleCreated/OnHandleDestroyed
(DataGridView
类)。
public class MyDataGridView : DataGridView
{
...
#region Memory leak fix
int _eventSubscriptionCount;
/// <summary>
/// Hack to fix event handler leak
/// </summary>
private void MemoryLeakFix()
{
Disposed += OnDisposed;
}
/// <summary>
/// In some cases subscription keeps PinkDataGridView (and containing it controls) from removing by GC
/// </summary>
private void OnDisposed(object sender, EventArgs eventArgs)
{
for (int i = 0; i < _eventSubscriptionCount; i++)
{
base.OnHandleDestroyed(new EventArgs()); // unsubscribe SystemEvents.UserPreferenceChanged
}
}
protected override void OnHandleCreated(EventArgs e)
{
base.OnHandleCreated(e);
Interlocked.Increment(ref _eventSubscriptionCount);
}
protected override void OnHandleDestroyed(EventArgs e)
{
base.OnHandleDestroyed(e);
Interlocked.Decrement(ref _eventSubscriptionCount);
}
#endregion Memory leak fix
}
为什么“-1”?这个问题有什么问题? –
今天心情不好吗? –