The Script Manager is in the Master Page Please help me.... 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.However wen I click on Update nothin happens, currently it isn't connected to the database I just want it to change the text of a button so I know the update works.All was workin fine b4 I added the Update Panel and Content Template.Many a times in our applications we use primary keys to get control of the particular record in the gridview. For this situation, many developers use invisible columns (Hidden columns) in the gridview to identify that row. NET 2.0 most of the examples and tutorials deal with setting the Data Source ID, which buys you a lot of automation that you may not even appreciate unless you’ve done this the old fashioned way.
First, we’ll implement a method to databind the Grid View, which will be called whenever databinding needs to be performed.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. The Grid View does know the events that should be used to implement them, so the exceptions shown above are thrown when you try to perform one of these operations, but you have implemented the appropriate event handler.The example shown here is for a Grid View, but the same types of event handlers must be implemented in roughly the same way for other data controls including the Form View, Details View, and List View. This is the final Grid View markup, so you can see the event handlers we’re going to implement.