To cancel the update operation, set the collections, if necessary, before the values are passed to the data source.A common way to use these collections is to HTML-encode the values supplied by the user before they are stored in the data source. For more information about handling events, see NIB: Consuming Events.It seems to be working fine just thee data did not really updated in the db. I am using the page to show details of reecords from couple of different tables so I cannot hardcode any parameeters on the pagee directly. Basically,the menu will be like this, Categories Sub Categories. I have a Form View control populated with some labels that use one way databinding to a database.Here is a code of My Detail View_Item Updating: All the other things like connection string , select and update statements and the layout of detailsview I set in the code behind. For example, for COMPUTING category there will be NOTEBOOKS DESKTOPS etc. What I want to do is on the Form View_Item Updating event, I want to check the Old Values collections, use that to calculate some values and then insert them into the New Values collection.All the other things like connection string , select and update statements and the layout of detailsview I set in the code behind.It is everything working just fine untill I hit update button. Data Source = new object ; It shows up fine in the view. Data presentation control in another Data presentation control Hello, I want to make a menu with datalist or gridview control. Form View Control I'm running into a behavior which seems odd to me.
This is driving me batty as I cannotdo anything with my data.
NET 4.0 (Web Forms) A snippet of code that I believe to be relevant below: The problem is that if I want to handle the old values, I can´t: this, evaluates to 0: int old Values Count = e. Count; and this, evaluates to null, even if I alter the value to a new one: string company Name Old = e.
event is raised when an Update button within a Details View control is clicked, but before the update operation.
event when an Update button (a button with its Command Name property set to "Update") within the control is clicked, but before the Form View control updates the record.
This allows you to provide an event-handling method that performs a custom routine, such as HTML encoding the values of a record before updating it in the data source, whenever this event occurs.