Rowupdating gridview newvalues

The data access layer encapsulates the underlying SQL statements for data manipulation.

You can implement the components of this layer using strongly typed Data Set.

One thing you'll learn about developing webpages is that its like petting a porcupine (yikes).

If you go with the flow, you probably won't get stuck, but the moment you try to go against the grain you end up with a hand full of thorns.

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Unfortunately these dictionaries are only filled out if you are bound to a datasource control :(.

However, most of the real world cases call for validating the data being edited or deleted. Drag and drop an SQL Data Source control on the web form.

There can be several approaches taken for validating data. For our example we are going to use Customers table of Northwind database. Open its smart tag and choose "Configure Data Source" option to start Configure Data Source wizard.

The business logic layer enables specifying business entities, business rules and workflow associated to the underlying logic of your business.

You can implement the components of this layer using strongly typed Data Set as well as custom business objects by defining classes in any language supported by . The presentation layer enable display the data associated to business entities as well as control the interaction from the end user and the business application.

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