Firstly, I'm sorry I'm not Rob. We know he's the best and you only want the best people answering your questions but this is a public forum, so I don't care and am going to answer anyway. I apologise if my answer isn't as good as the one I'm sure you'd get off Rob.
Secondly, you haven't given us much to go on. You obviously want to use the .Net framework to access some kind of database but you don't say what kind. MySQL? Access Database? FoxPro? dBase?
You also want to display this to the user in a textbox. Is this on a windows form, or on a web page perhaps? They both have text boxes.
If you are new to the .Net framework then could I recommend getting a good beginners book on the subject. Alternatively you might be interested to know there is a technology in .Net called ADO.Net - there are also books on this subject, or numerous tutorials on the internet which are free to help you learn.
Once you've tried a few things if you're still stuck feel free to come back and ask any of the people who use the forum (or just ignore everyone else and seek out the wunder-Rob again) for some help on the particular issue you are having.
/- Sam Judson : Wrox Technical Editor -/