This file will be used to control the Windows Service and make it work in different modes. After adding the file, you will need to copy the following AppSettings to the App. Below is the description of each AppSetting. Mode : It is used to set the Mode. There are two types of modes namely Daily and Interval. IntervalMinutes : It is used when Mode is set to Interval. It consist of the Interval value in Minutes after which the Windows Service will perform a task. In other words it is the delay value.
ScheduledTime : This setting is used when the Mode is set to Daily. It is used to notify the Windows Service the time it should perform a task. The value specified is in 24 hour time format. The following code has to be placed in the Service. I am making use of a Timer class belonging to the System. Threading namespace in order to execute the Windows Service periodically at regular intervals and as well as once a day at specific certain time of day.
The Timer has a Callback method which gets triggered automatically when the due time is elapsed. We will start with importing the following namespaces. Imports System. In the case when the scheduled time is passed, it is updated to same time on the next day.
Finally the Timer is set to run the scheduled time. Note : While using the above code, you could encounter the following error: The type or namespace name 'ConfigurationManager' does not exist in the namespace 'System. Configuration' are you missing an assembly reference? The solution is provided in my article The type or namespace name 'ConfigurationManager' does not exist in the namespace 'System. InitializeComponent ;. ScheduleService ;. Dispose ;. AppSettings[ "Mode" ]. ToUpper ;.
Parse System. AppSettings[ "ScheduledTime" ] ;. AddDays 1 ;. ToInt32 ConfigurationManager. AppSettings[ "IntervalMinutes" ] ;. AddMinutes intervalMinutes ;.
Subtract DateTime. Now ;. Days, timeSpan. Hours, timeSpan. SourceExists "MySource" Then. Object, ByVal e As System. EventArgs Handles Timer1. Hi chor,. Welcome to MSDn fprums! John pointed you to the right direction. Windows Service application is often running as Local System account but not always. If we write a Windows Service installer, we can change the account:. Public Sub ProjectInstaller. Add process. Add service.
Copy Code. Posted Aug pm Member Updated Aug am Jochen Arndt. Add a Solution. Accept Solution Reject Solution. Posted Aug am Jochen Arndt. Add your solution here. OK Paste as. Treat my content as plain text, not as HTML. Existing Members Sign in to your account. This email is in use. Do you need your password?
As initially stated, this application is designed to be run as a Windows service, so I need a way to start or stop FileSystemWatcher instances automatically when the Windows service starts, stops or restarts. Initially, every time the Windows service starts, it has to perform two actions: Populate the list of FileSystemWatcher instances from the XML file Figure 3 , and then start the instances Figure 4. And, finally, the method in Figure 7 implements the logic to stop the FileSystemWatcher; it requires stopping or restarting the Windows service.
FileSystemWatcher is a powerful class that allows you to monitor listen to changes occurring in the file system, such as creating, deleting, and renaming files and folders, as well as modifying them. This application, which is intended to run as a Windows service, has been designed to allow for easy modification of the files and folders to be monitored, including file extensions.
The approach I followed uses a very handy concept available in the. NET Framework, serialization and deserialization, making it possible to feed the FileSystemWatcher class from an XML file without requiring any change to the source code. NET Framework.
0コメント