Net Question Answer site, specially started to allow visitors of this site ask their doubts and queries. Just click the Ask Now button and ask your question now. 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. ) Filtering Database Data with Parameters, an earlier installment in this article series, showed how to filter the data returned by ASP. In a nutshell, the data source controls can include parameterized queries whose parameter values are defined via parameter controls.This article is one in a series of articles on ASP. For example, the Sql Data Source can include a parameterized is a parameter; the value for a parameter can be defined declaratively using a parameter control. NET offers a variety of parameter controls, including ones that use hard-coded values, ones that retrieve values from the querystring, and ones that retrieve values from session, and others.The good news is that we can craft and assign this comma-delimited string to the parameter programmatically, which we'll see how to do in the next section. Value) End If Next 'Convert the List of Department IDs into a comma-delimited string Dim department IDs As Comma Delimited List As String = String. To Array()) 'Assign department IDs As Comma Delimited List to the @Department IDs parameter e. While programmatically crafting and assigning this comma-delimited string to the parameter certainly works, it requires a bit of code.Following that, we'll look at building a custom parameter control to handle this for us declaratively. Sql Data Source Selecting Event Args) Handles ds Employees By Departments. One of the major benefits of the data source controls, though, is that they can be used entirely declaratively.While the Control Parameter works well with most types of Web controls, it does not work as expected with the Check Box List control.
Creating a SQL query to perform such a filtered search is pretty straightforward.
To accommodate this, Amazon might use a list of checkboxes, with one checkbox for each store.
The user could then type in their search criteria and select the stores to search.
But how would you create a SQL query to filter the products based on the user's store selections?
SQL includes an You can build a User-Defined Function (UDF) that takes a comma-delimited string as an input and returns a table that contains one record for each input.