insert using objectdatasource with duplicacy check

Data Source controls were introduced to help enable designers to create controls that bind to data with little if any code. There is a suite of Data Source-based controls (including XMLdataSource and SQLdataSource) and SqlDataSource is just one. As business objects and other data source types can take on many different forms, data-bindable controls needed a consistent way to access and modify the underlying data. ODS (as I shall call it) is a non-display control in ASP.NET 2.0 that acts as the 'glue' between your data-access objects and data-bound controls on the web page. Note: this article was written using Visual Studio 2005 December 2004 CTP edition, which is based on. I will also mention a few problems you're likely to encounter along the way.

This article is designed to take you from first-principles to a working ASP.NET 2.0 web application with selecting, updating, inserting and deleting and concurrency checking. I found lots of brief articles on the web about ObjectDataSource (ODS) but very few covered any detail, with no complete examples and many articles 'cheated' by not using business objects, but by using datasets and data readers. If (like me) you have an existing data access layer you may have to make changes to be able to use ObjectDataSource. However, as I found out in my experimentation what seems like a simple control has some complex behaviors to master to get it working properly. One of the best new features of the forthcoming ASP.NET 2.0 will be the ObjectDataSource control.

Insert using objectdatasource with duplicacy check