This interface would also include an "Add Product" button that, when clicked, would add a new record to the database using the values entered by the user.
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In order to programmatically retrieve the results from a data source control we first need to add the data source control to the web page and specify its properties.
To illustrate working with data programmatically, let's create a page that allows the user to choose a product category from the table.
It is possible to add a Sql Data Source or Access Data Source control to a web page, specify queries, and then to programmatically execute one of the control's SQL commands.
Such an approach is useful when you need to work with data programmatically, but want to avoid having to write the boilerplate data access code.
NET 2.0 data Web controls you would start by adding the Text Box, Drop Down List, Check Box, and Button Web controls.
Next, add a Sql Data Source control that specifies the following parameterized that point to the appropriate Web controls on that page. From the Designer, click on the Sql Data Source and go to the Properties window.
When you want more flexibility for performing sorting, searching, and filtering, you’ll want to use a Data View.
A Data View was essentially designed to be a of the data that is stored in a Data Table.
Upon selecting a category, imagine that we want to display the average price for the products in that category as well as the three most expensive products (their name and price). To String("c") End If End If 'Get the three most expensive items as a Data View Most Expensive Products. Empty Dim vw Expensive Items As Data View = CType(Most Expensive Products Data Source. Empty), Data View) 'Loop through each record For Each row Product As Data Row View In vw Expensive Items 'Output the name and price Most Expensive Products. Format(" (); ", row Product("Product Name"), row Product("Unit Price")) Next End Sub as well.