event is raised when a row's Update button is clicked, but before the Grid View control updates the row.
This enables you to provide an event-handling method that performs a custom routine, such as canceling the update operation, whenever this event occurs.
A common way to use these collections is to HTML-encode the values supplied by the user before they are stored in the data source.
This article explains how to add a pop-up control to a gridview in order to display drill-down (Master detail) information without using ajaxcontroltoolkit Modal Popup extender.
That means that after a message is displayed in the Label control it remains displayed until the user performs another action that causes the message to be overwritten.
The following screenshots show this shortcoming in action.
For instance, a typical CRUD (Create, Read, Update, Delete) web page might display the message, "Record deleted" immediately after deleting a record and the message "Record updated" immediately after updating a record.
Likewise, there would be messages displayed for inserting a new record and messages displayed in the event of an error.
The following screenshot illustrates this undesirable behavior.Such messages are typically displayed using a single Label Web control.This control may be located at the top of the page and have its property value is remembered across postbacks.This article examines these two approaches and includes a working demo available for download that highlights both approaches. On this page we would like to display a message when certain events transpire.For example, whenever a user updates a record we want to display the message "The product Product Name has been updated." A similar message should be displayed when the user deletes a product.