![]() In the code pane, we’ll need to write two Sub routines: one for the Browse button Click event and another for the FileSystemWatcher Created event. The FileSystemWatcher control is simply a component version of that class that can be edited within the designer.Īfter you’ve added the FolderBrowserDialog and FileSystemWatcher components to the form, the designer looks like this:įigure 6: Form designer with added components Coding the Main Form The FileSystemWatcher class is one that can raise events when a file is created, renamed, updated, or deleted within the specified folder. The FolderBrowserDialog is located under “Dialogs” in the Toolbox: To add an invisible control at design time, you simply drag and drop the control from the Toolbox to your Form in Visual Studio. Unlike your typical Windows Forms control, a FolderBrowserDialog does not have any visual properties and is not visible on the form. Now, we’ll add the FolderBrowserDialog control. Our form requires three visible controls: a button for selecting the folder to watch, a label that shows the watched folder, and a drop-down listbox that outputs event information: Give your project a name and click the OK button to close the New Project dialog and create the project. Launch Visual Studio and create a new Visual Basic Windows Form App: ![]() Microsoft has some clear and concise instructions on how to do just that. If you make the same mistake as I did and only install the basic IDE components, you can always get back to the installer at any time because it is installed along with the IDE. It’s a large download, but fortunately, you only need to do it once.įigure 1: Visual Studio Community 2017 installer NET classes, including the “Windows.Form” component. The first contains the VB language the latter, the. When you run the installer, make sure that you check the “Universal Windows Platform Development” and “.NET desktop development” boxes. You’ll be happy to know that Microsoft offers the FREE Visual Studio Community Edition, a fully-featured, extensible, IDE for creating Android, iOS, Windows, and Web applications, as well as Cloud services. NET, if you want to follow along with this article, you will need the. Creating the Projectīecause the control is built on top of Microsoft Visual Basic. In this article, we’ll create a simple application in Visual Studio that will respond to the File Create event and e-mail the new file to us as an attachment via our Gmail account. VB.NET has a encapsulated all of the functionality of the System.IO.FileSystemWatcher class into a control that you can add to your VB.NET projects. Thankfully, those days are over! Now, we can monitor a folder and raise events when there is any activity in the target folder by using the FileSystemWatcher class. We had to rely on Windows APIs-and a lot of code-to monitor the folder. ![]() Our system was supposed to immediately process the file, because the data that it contained was time sensitive. Monitoring a Folder and E-mailing New Files as Attachments Using a VB.NET FolderWatcherīack when I was a VB developer, we had a partner who regularly copied files to a mapped network drive folder.
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