ADO.NET is that technology by Microsoft which enables us to connect any .NET application with different type of Database easily and unanimously. thus it acts as a layer between .NET Application and Database as shown in following picture.
Three important classes in ADO.NET frame work are 1) Connection 2) DataAdapter and 3) DataSet. Using objects of these class types in .NET application we can access from database and use the data as per our needs.
Obviously to connect with different type of database we have to use different type of data adapter and connection string.
Thus for understanding the whole thing in a better way we shall try for writing the actual code. To try with databases here are some ready database files of different type having the Same name Contacts and having a single table with name contacts1 with a very small amount of data (5 records)
1) ACCESS Database File Contacts.accdb
2) SQL Express Database file Contacts.mdf
3) SQL Compact Edition Database file Contacts.sdf
4) SQLite Database file Contacts.db
5) Excel as Database file Contacts.xlsx
And here are the Zip file for VS2012 Solution and VB.NET Project to connect to each type of database.
And here are videos which will explain how to write the code
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Thanks for sharing such useful content! Daniel Dantas
ReplyDeleteThis is a great introduction to ADO.NET! It provides a clear and concise overview of its importance in connecting .NET applications to databases. The explanation of key concepts like data providers, connections, and commands makes it easy to understand for beginners. Well done! Sidney De Queiroz Pedrosa
ReplyDeleteGreat introduction to ADO.NET! It’s clear and concise, explaining the key concepts of data access in .NET applications. The explanation of how ADO.NET helps connect, retrieve, and manipulate data from different sources is spot-on for beginners. Thanks for sharing this helpful resource! Beatriz Barata
ReplyDeleteThis is an excellent introduction to ADO.NET! Your clear explanation of the framework's core concepts, combined with practical examples, makes it incredibly easy to understand, even for beginners. I especially appreciate how you've broken down the architecture and its use cases, providing both technical depth and clarity. Your blog is a valuable resource for anyone diving into .NET development. Looking forward to exploring more of your insightful content—keep up the great work! Global Talent Pathway
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