FileSystemWatcher Constructor (String, String)

FileSystemWatcher Constructor (String, String)

 

Initializes a new instance of the FileSystemWatcher class, given the specified directory and type of files to monitor.

Namespace:   System.IO
Assembly:  System (in System.dll)

public FileSystemWatcher(
	string path,
	string filter
)

Parameters

path
Type: System.String

The directory to monitor, in standard or Universal Naming Convention (UNC) notation.

filter
Type: System.String

The type of files to watch. For example, "*.txt" watches for changes to all text files.

Exception Condition
ArgumentNullException

The path parameter is null.

-or-

The filter parameter is null.

ArgumentException

The path parameter is an empty string ("").

-or-

The path specified through the path parameter does not exist.

PathTooLongException

path is too long.

System_CAPS_noteNote

The component will not watch the specified directory until the Path is set, and EnableRaisingEvents is true.

The component can watch files on your personal computer, a network drive, or a remote computer.

You cannot watch a remote computer that does not have Windows NT or Windows 2000. You cannot watch a remote Windows NT 4.0 computer from a Windows NT 4.0 computer.

SecurityAction.LinkDemand

for full trust for the immediate caller. This member cannot be used by partially trusted code.

.NET Framework
Available since 1.1
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