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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.First, I load up some data: After that, I’m doing some work to make my Grid View look beautifull, adding all columns by hand.But for this demo, I’ll show you the simple version, that also doesn’t work 🙂Let’s bind the data to our Grid View and have it autogenerate our columns, as well as an edit button.When we edit a row in our Grid View and press the “Update” button, at some time it’s received in the Row Updating method. If we move our mouse on to the variables, which hold the cell values, we can see the old value instead of new updated value (Refer the debugging Screen Shot at the Top). 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. There are multiple ways in which one can get the data from the current row that is being edited in a Grid View. Using "Extract Values From Cell": This is an easy way to get all the values from the current row.
For a while now I’m trying to figure out why my method, triggered by the Grid View.Row Updating event, doesn’t work as all samples say it should do.All samples of course assume you’re doing everything in your page, but I have to do everything in my code-behind, because on forehand I don’t know what I’ll be binding to my Grid View.Check out what I’m trying to do, maybe you can help?
Obviously the simplest method is to use Data Key Names on the Grid View and then you should have the data in your Grid View Update Event Args as part of e. (In the following example, I cast to a Check Box as I know I have a checkbox at the col Index You Are Interested In - you should cast to whatever control you have in that column). As the values are inserted into an Ordered Dictionary - you can use the field names to access the changed data 2.