Asp net objectdatasource updating event
The Command object contains information about the command to be issued (via the collection there would be a parameter. The download available at the end of this article provides a helpful method for displaying the and all of the Command's parameters when retrieving or modifying data through the Sql Data Source control. Like the Sql Data Source, the Object Data Source's pre-action events provide an opportunity to customize the parameters being passed into the configured object method. Object Data Source Selecting Event Args) Handles Categories Data Source. After the specified action has been completed, the Sql Data Source and Object Data Source controls raise their corresponding post-action events ().The parameter's source could be specified declaratively, using a hard-coded value or pulling its value from a Web control on the page, a querystring value, and so on. Sql Data Source Selecting Event Args) Handles Categories Data Source. Instead of receiving a Command object in the event handler, the Object Data Source's pre-action event handlers are passed a dictionary object called , where the Integer input parameter department ID is used internally to return only those employees belonging to the specified department. In the post-action event handler, the number of affected rows is reported as is whether an exception occurred.It seems that some exception is happening which is not handled or caught by the debugger. I'm going to give up on this approach and use my own method in the Row Command event instead.When retrieving or modifying data with the Sql Data Source or Object Data Source controls, pre- and post-action events fire.
For example, the Sql Data Source and Object Data Source raise their event indicates, among other things, if an exception occurred during the operation.The pre- and post-action event handlers are also quite helpful when debugging. These controls allow page developers to declaratively access and modify data without writing any code to perform the data access. This article is one in a series of articles on ASP. I declare the following Object Data Source control: Given that the Update method in the Products BLL class accepts a Product object as a parameter.Now, before the update takes place, I want to add a custom data to the Product parameter.