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For this situation, many developers use invisible columns (Hidden columns) in the gridview to identify that row. We can achieve the same functionality using Datakeys. In this example, I am going to retrieve values from categories table of Northwind database. Drag a Grid View into the Web Form and assign Data Key Names property with the primary key column i.e. In the gdview_Row Editing and gdview_Row Deleting event, we have used the below code to retrieve categoryid from datakey of Grid View, int catid = int. Now you can ask questions directly to me on my new site ASPForums. Buttons within a Grid View control can also invoke some of the built-in functionality of the control.To perform one of these operations, set the Command Name property of a button to one of the values in the following table. Sets the Command Argument property of the button to "First", "Last", "Next", "Prev", or a page number to specify the type of paging operation to perform.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 Grid View Update Event Args object is passed to the event-handling method, which enables you to determine the index of the current row and to indicate that the update operation should be canceled.

event is raised when a row's Update button is clicked, but before the Grid View control updates the row.For example you could have the following code:to store the information. Finally the code is bound to the When the user selects a record from the grid, the selected row index will be passed through as the Command Argument.Run the project and place a breakpoint on the code above. The program will stop on the breakpoint and you will be able to see the selected row index being passed through.event is raised when a button is clicked in the Grid View control.This enables you to provide an event-handling method that performs a custom routine whenever this event occurs. I will click on the EDIT link in one of the grid view row. I will update the values and click update link in edit mode and edit mode closes. At this point I need to capture the datakey of the updated row into some variable Can someone please help me out with this? Open Visual Studio 2008 and create a new Web Application. A datakey represents the primary key field or field of a record that can uniquely identify it in a data-bound control. Row Index represents the index of the particular row.Many a times in our applications we use primary keys to get control of the particular record in the gridview. I'm using a sqldatasource control to populate the grid and want to write the update code in the Row Updating event. I can get the value of the first field using " Select Command="SELECT @Week Ending Week Ending , Project , Project ID , Category , Category ID ,isnull([1], 0) Sun ,isnull([2], 0) Mon ,isnull([3], 0) Tue ,isnull([4], 0) Wed ,isnull([5], 0) Thu ,isnull([6], 0) Fri ,isnull([7], 0) Sat from (select P. The key fields are defined in the Data Key Names property of a Grid View control.

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