I'll try to address your question, but I'm also going through some of the other problems here.
Without seeing your markup, it's hard for me to tell if you've created .
The difference between your code and the code on MSDN is: - The MSDN code takes the new data from the edited row and updates the appropriate data in the To me, this is garbage, because it's so highly coupled to the order of your cells.
If I had written the code, I would explicitly create all the front-end controls and use a binding command (if you aren't familiar, it looks like How should I create all front-end controls in the markup?
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.
Although this isn't as big of a problem when you're referencing the text from web controls, getting in the habit now will prevent you from serious headaches and inefficiently checking for null and empty later. NET 4.0, you should have access to event, you need to pull the new values out of the front-end controls, and then re-bind your data.
It looks like your source code is pretty close to the MSDN source code here.
Font-Names="Verdana" Font-Size="10" Data Key Names="Product ID" Auto Generate Columns="false" onrowcancelingedit="Grid View1_Row Canceling Edit" onrowediting="Grid View1_Row Editing" onrowupdating="Grid View1_Row Updating"In the above code, I set two properties Show Edit Button and Show Cancel Button of Command Field.
More information about Sql Server 2008 R2 Express and download links can be found here: Please follow these demonstration steps below. Expand the CSASPNETGrid View web application and press Ctrl F5 to show the Data From
Step 2: We will see a Gird View control on the page, you can add, edit, delete the columns of the Grid View control, the data is come from App_Data/Grid file, and the Grid View's status is stored in View State for persisting data across postbacks.
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.
To cancel the update operation, set the collections, if necessary, before the values are passed to the data source.