Asp net gridview onupdating
Are you wanting the old values before the edit or before the update?
i have an object that has properties (userid,name,surname) i added just field userid and "name" on details view. i can i handle the object that objectdatasource creates to apply update parameters on?
As shown in the code above, we first get a reference to the Page Request Manager and then wire up the initialize Request and end Request events to execute, when an async postback begins and ends respectively.
When the user initiates a postback by clicking on the button kept inside the Update Panel, we set a delay of 3 seconds.
This class defines client events that you can use during an asynchronous request cycle.
Let us see how to use some events of this class to display progress to the user while the Update Panel updates its contents.
The Page Request Manager class handles the partial-page updates of the Update Panel.
You can use this control to display status information to the user, while the Update Panel updates its content.
In the example below, we use the same to display progress while the Update Panel is updating its content.
To display progress to the user, we handle the Initialize Request at the client side and set the to visible.
This shows up the image with the progress as shown below.In this article, we will study three different techniques that allow you to visually display progress to users while performing partial-page updates using the Update Panel.For all the three approaches, I have used a image to show a spinning gear kind of a progress bar while the Update Panel is performing some action.You can read more about the Update Panel Animation Extender over definition tags call two Java Script methods respectively that are responsible for displaying and hiding the image progress bar while the Update Panel performs an update on the control.