For more information, see method explicitly to perform data binding and resolve data-binding expressions.Another situation is if you need to manually refresh the data in a data-bound control.method takes the name of a data field and returns a string containing the value of that field from the current record in the data source.You can supply an optional second parameter to specify a format for the returned string. Extract Values From Cell Method d.So in our Grid View's Row Updating event, we can manually query the data fields values (key , old values , new values...) from the corresponding cells. the good old problem of getting the data from the row that is being currently edited within a Grid View. Accessing the "Controls": This method gets you access to the control in the Grid View, which might be useful based on what you are doing.In a Grid View, you need to give the user the ability to "mark" a row.The simplest solution is to check off Enable Selection on the Grid View's Smart Tag, which adds a Select button to every row.
As the values are inserted into an Ordered Dictionary - you can use the field names to access the changed data 2.
The data source control in turn performs the appropriate command for the database.
For this reason, the This example has a text box that accepts user input, which is a potential security threat. NET Web pages validate that user input does not include script or HTML elements.
Note A common mistake that a lot of people do is that they perform a databind each and every-time the Page_Load method is called.
This will lead to problems like "Grid View does not show updated values", "Grid View looses values changed by user". In your Page_load, this is typically only inside a block where you check to make sure that Page_Load is not being called during a post-back call.