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  1. G

    Data Access Layer in Windows App.

    Hello all, I've done ASP.NET apps using a multi-tier approach but never anything with Win apps. After some searching online I'm not finding much info to building DAL's for Win Apps. I'm wondering what the concepts are to creating a Windows DAL (by the way I'm using SQL Express). This is a...
  2. G

    Unique fields in a Custom Collection

    I've been studing over my code and I am looking for some constructive criticism? Suppose you have a collection of objects. Each object must contain a unique integer field called site (the site range can be from 0 to 500). So if I add or remove objects from the collection. I need to be able to...
  3. G

    Invalid cross-thread call.

    Hello again, I'm currently stuck... I'm receiving data from a serial port. So I process the data, create a custom object based on the data, and then place the object into an inherited ibinding list. My object also implements INotifyPropertyChanged interface so it can easily bind to a...
  4. G

    Multiple threads with Timer and Port objects

    Hello All, I'm working on a program that controls Pan-tilt cameras through a serial port. The commands are sent to the cameras in two ways. Either immediately or delayed up to five minutes. My current approach sends the commands to a queue collection that's checked with a timer event every...
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