New Financial Suite Inquiry

Question

Hello all........ I've recently been writting a MDI Application in VB.NET. Due to the lacking resources to the new language standards I'm considering changing the application language to C# as I've found tons of resources to this language. What I'm doing is writting a MDI Application that will consist of lots of child windows forms. I will have a specific area to which the child form will load to and the user would be able to have more than one child window open at a time. I will need for the forms not to minimize when a child window is closed (I think this consists of focuse to the individual forms but not sure). It will consist of Inventory managment, customer management, banking managment, vendor management, employee managment, reports and more. I have one primary question to start with here for the application. When linking to ado.net for lets say "ItemList" which consists of the full inventory list I would have groups and then items that fall under those groups. Would it be easier to use a treeview control versus just a dataset view so that the information would be separated into Parent Nodes / Child Nodes? Also currently the specific SQL Table I'm speaking of has over 8500 records to it. In vb.net upon loading the form with a auto data load command within it the form takes between 3-5 minutes to load. The application is unusable till the form/data has been loaded. Would this be a task for multi-threading to speed up the load process of such large amounts of data? I only predict it to get worse as my client currently has a total of over 15,000 products to his company that he would need housed within this one table. Thanks for all your help / feedback to this response. David Watson