According to the following article, you can tell the FileSystemWatcher to monitor subdirectories by setting the FileSystemWatcher. IncludeSubdirectories property to true. Christian Payne Christian Payne 6, 5 5 gold badges 36 36 silver badges 59 59 bronze badges. The Overflow Blog. Podcast Helping communities build their own LTE networks.
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You would have to restart the app just to see the new changes. Revert your changes, and run the application again. But this time, use the ASP. Then, edit your code to use doubles instead of ints and save your file. When a file is renamed, the old and new paths print to the console.
Use FileSystemWatcher to watch for changes in a specified directory. You can watch for changes in files and subdirectories of the specified directory. You can create a component to watch files on a local computer, a network drive, or a remote computer.
To watch a specific file, set the Filter property to the file name. For example, to watch for changes in the file MyDoc. You can also watch for changes in a certain type of file. There are several types of changes you can watch for in a directory or file.
For example, you can watch for changes in Attributes , the LastWrite date and time, or the Size of files or directories. This is done by setting the NotifyFilter property to one of the NotifyFilters values. For more information on the type of changes you can watch, see NotifyFilters. You can watch for renaming, deletion, or creation of files or directories. The Windows operating system notifies your component of file changes in a buffer created by the FileSystemWatcher.
If there are many changes in a short time, the buffer can overflow. This causes the component to lose track of changes in the directory, and it will only provide blanket notification.
Increasing the size of the buffer with the InternalBufferSize property is expensive, as it comes from non-paged memory that cannot be swapped out to disk, so keep the buffer as small yet large enough to not miss any file change events. To avoid a buffer overflow, use the NotifyFilter and IncludeSubdirectories properties so you can filter out unwanted change notifications. Please note the following when using the FileSystemWatcher class. In some systems, FileSystemWatcher reports changes to files using the short 8.
For example, a change to "LongFileName. This class contains a link demand and an inheritance demand at the class level that applies to all members. A SecurityException is thrown when either the immediate caller or the derived class does not have full-trust permission. For details about security demands, see Link Demands. The maximum size you can set for the InternalBufferSize property for monitoring a directory over the network is 64 KB.
The operating system and FileSystemWatcher object interpret a cut-and-paste action or a move action as a rename action for a folder and its contents. If you cut and paste a folder with files into a folder being watched, the FileSystemWatcher object reports only the folder as new, but not its contents because they are essentially only renamed. To be notified that the contents of folders have been moved or copied into a watched folder, provide OnChanged and OnRenamed event handler methods as suggested in the following table.
Note that several factors can affect which file system change events are raised, as described by the following:. Common file system operations might raise more than one event. For example, when a file is moved from one directory to another, several OnChanged and some OnCreated and OnDeleted events might be raised. Moving a file is a complex operation that consists of multiple simple operations, therefore raising multiple events.
Likewise, some applications for example, antivirus software might cause additional file system events that are detected by FileSystemWatcher. The FileSystemWatcher can watch disks as long as they are not switched or removed. Remote computers must have one of the required platforms installed for the component to function properly. Note that a FileSystemWatcher may miss an event when the buffer size is exceeded. To avoid missing events, follow these guidelines:. Increase the buffer size by setting the InternalBufferSize property.
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