Question

我有一个简单的C# 4.0Windows表格,它为观看名录的档案SystemWatcher提供实例。当增加档案时,适当的事件火力,我对另一个目录做了一些 st。然后,我举了一个儿童形式的例子。儿童构成hang,控制不油漆。

我认为,这是因为,尽管我喜欢从主要形式开始,但档案资料调查研究正处在不同的轨道上。从档案SystemWatcher活动上传出儿童形式,我认为这是又一read?

Answer 1

Set the FileSystemWatcher.SynchronizingObject property to their main form.

When SynchronizingObject is null, methods handling the Changed, Created, Deleted, and Renamed events are called on a thread from the system thread pool. For more information on system thread pools, see ThreadPool.

When the Changed, Created, Deleted, and Renamed events are handled by a visual Windows Forms component, such as a Button, accessing the component through the system thread pool might not work, or may result in an exception. Avoid this by setting SynchronizingObject to a Windows Forms component, which causes the methods that handle the Changed, Created, Deleted, and Renamed events to be called on the same thread on which the component was created.

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