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Editorial Team
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Asked: 2026-05-18T01:15:22+00:00

Good morning all. I’m relatively new to the Visual Basic realm (although a traditional

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Good morning all.

I’m relatively new to the Visual Basic realm (although a traditional web based script developer), i’ve come to ask you a question. I am reading data from an XML file. This local XML file will be updated by another application, and I will need to periodically re-evaluate the XML file, and only import new data into a list box. Furthermore, I want to be able to click on a particular item in the listbox, and display the other values about that particular XML entry.

So, I suppose this is a multi part question. What is the proper way to import only NEW data into the program, what is the proper way to store the data, and how do I associate a value in a listbox with the data stored elsewhere?

I’ve considered multidimensional arrays, but have been told that strings to char arrays and then back to strings is a terrible way to manage the data, but was never offered an alternative.

I will be satisfied with a list of topics to study up on and/or an example for an answer to this question.

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1 Answer

  1. Editorial Team

    I would probably use classes that implement INotifyPropertyChanged and a BindingList. Then you just need to listen to ListChanged events off of the list and update the list box then.

    I have a blog post that discusses binding classes and interfaces if you want to learn more about them: Data Binding Classes, Interfaces, and Attributes in Windows Forms 2.0. It might be a little dated by now, I haven’t reviewed it since I wrote it in March, 2007.

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