These controls allow page developers to declaratively access and modify data without writing any code to perform the data access. In this article we will examine basics of using the Sql Data Source and Grid View controls to update records from a database.
This article is one in a series of articles on ASP. In particular, we look at enabling editing support in the Grid View. This article focuses on the Sql Data Source control; for a detailed look at updating with the Object Data Source, refer to the "Editing, Inserting, and Deleting" tutorials in my Working with Data in ASP. Let's explore the updating "action" for the Access Data Source and Sql Data Source controls in more detail.
Probably everyone in the world but me knows how Visual Studio handles database files during testing in a GUI-based project. NET projects, I didn't clue into this behavior until recently.
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.
The source may be: a hard-coded value like "3.95", which would return all products less than $3.95; the value of a Web control on the page, allowing the user to enter a price bound in a Text Box; from the querystring; from session state; and so on.
Likewise, the parameter values in the Astute readers will notice the similarity between the Access Data Source and Sql Data Source controls' inserting, deleting, and updating workflows.
The db connection seems running ok but insert/update functions. Here is the code: dim fuser, fpass, duser, dpass, admin fuser = Trim(Request. Form("user Password")) set conn=server.createobject("adodb.connection") main_mdb = server. Open "Driver=; DBQ=" & main_mdb & ";" Set rs=Server.
Create Object("ADODB.recordset") "Select Vch User Name, Vch Password, Bln Administrator from tbl User", conn do until rs.
More information More information This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying. So i tried to run it line by line so I figured out that the error is in the insert statement: sql="insert into tbl User Log (Vch User Name, Dte Logged, Vch Action)values ('" & duser & "','" & loggeddate & "','In')" conn.
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.
Column Name N = @Parameter Value N WHERE Primary Key Column Name1 = @Primary Key Value To Update1 AND Primary Key Column Name2 = @Primary Key Value To Update2 AND ...