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They are used to summarise data and present it in a way which is relevant, easy to understand and useful for the end user.In MS Access reports use the banded design concept whereby (similar to continuous forms) records from a table or query are displayed flowing vertically down the page.
NET 2.0 introduced a number of new Web controls designed for accessing and modifying data. NET 2.0's data source controls make it possible to retrieve, insert, update, and delete data without having to write the tedious dedata access code that was so commonplace in ASP. Previous installments of this article series have looked at returning, inserting, and deleting data using the Sql Data Source control. These controls can work in unison with the data source controls to facilitate inserting, updating, and deleting data.In the manually-created Web Forms example for inserting, for example, we added Text Boxes, Drop Down Lists, and other Web controls to collect the values for the new record.A Sql Data Source control was added whose Insert Parameters referred to these controls.They also have buttons which can be used to open related forms or reports.Data entry forms present one record in detail and allow it to be edited.