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By default, the Grid View control doesn’t have support for inserting new records.

However you can use the built-in edit or delete functionality of the Grid View control.

Let us explore how to insert new records and Update and Delete existing records in Gridview. We will be using the ‘Categories’ table in the ‘Northwind’ database.

NET 2.0 introduced a number of new Web controls designed for accessing and modifying data.

These controls allow page developers to declaratively access and modify data without writing any code to perform the data access. ) In Part 2 of this article series we looked at how to access relational database data using the Access Data Source and Sql Data Source controls.

This article is one in a series of articles on ASP. However, in Part 2 we only looked at how to retrieve all of the records from a table, view, stored procedure, or ad-hoc SQL query.

Often, we only want to retrieve a subset of data based on various criteria.

When searching for a book on Amazon.com, for example, the search page retrieves only the data from the database that matches the search terms you entered; when viewing the details for a particular book, only the particular book's information is queried from the database.

Results are filtered in a SQL statement using the evaluates to True.

In English, it returns all products that cost strictly less than fifteen bucks.

The Sql Data Source and Access Data Source controls can define the value by which the query is filtered by using parameters, and these parameters can retrieve their values from a variety of sources, including: the querystring, session variables, other Web controls on the page, and so on.

Like the connection string and query, the filter parameters values for a data source control can be set declaratively, meaning you do not need to write a line of code.


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