Protected sub gridview1rowupdating

As we discussed in the previous tutorial, when a row is edited in the Grid View the Edit button is replaced by Update and Cancel buttons and the Bound Fields turn into Text Boxes. Cancel = True End If End Sub collection as well as how to cancel the updating process altogether.

After the end user updates the data and clicks Update, the following steps are performed on postback: event fires; an event handler for this event can examine additional information about the update operation just performed. These concepts carry over to the Details View and Form View controls and also apply to inserting and deleting.

Figure 1 depicts this series of events and steps when updating a Grid View. Value End If Dim rows Affected As Integer = Adapter. These tasks can also be done at the Object Data Source level through event handlers for its events.

The event pattern in Figure 1 is not unique to updating with a Grid View. Update(product) Return rows Affected = 1 End Function Overload (Click to view full-size image) Since our example will initially just need the ability to edit data, but not to insert or delete records, take a moment to explicitly indicate that the Object Data Source's class's methods by going to the INSERT and DELETE tabs and choosing (None) from the drop-down list. These events fire before the associated method of the underlying object is invoked and provide a last-chance opportunity to modify the input parameters collection or cancel the operation outright.

Inserting, updating, or deleting data from the Grid View, Details View, or Form View precipitates the same sequence of pre- and post-level events for both the data Web control and the Object Data Source. Figure 3: Choose (None) From the Drop-Down List for the INSERT and DELETE Tabs (Click to view full-size image) After completing this wizard check the Enable Editing checkbox from the Grid View's smart tag. The event handlers for these three events are passed an object of type Object Data Source Method Event Args that has two properties of interest: To illustrate working with the parameter values at the Object Data Source level, let's include a Details View in our page that allows the users to add a new product.

Figure 1: A Series of Pre- and Post-Events Fire When Updating Data in a Grid View (Click to view full-size image) In this tutorial we'll examine using these events to extend the built-in inserting, updating, and deleting capabilities of the ASP. We'll also see how to customize the editing interface to only update a subset of the product fields. With the completion of the Create Data Source wizard and binding that to the Grid View, Visual Studio has created the declarative syntax for both controls. This Details View will be used to provide an interface for quickly adding a new product to the database.

I have done some research on how to do this but haven't really find a solution. Preferably, your example should include what you have tried to do to solve this problem yourself.

Find Control("cbo Brand"); Data Table dt; String SQL = "SELECT * FROM Brand"; string s Constr = Configuration Manager.

Open(); using (Sql Data Adapter da = new Sql Data Adapter(comm)) { dt = new Data Table("tbl"); da. ID" Dim s Constr As String = Configuration Manager.

Connection String Using conn As Sql Connection = New Sql Connection(s Constr) Using comm As Sql Command = New Sql Command(SQL, conn) conn.

Connection String Using conn As New Sql Connection(s Constr) Using comm As New Sql Command(SQL, conn) conn.

Open() Using da As Sql Data Adapter = New Sql Data Adapter(comm) dt = New Data Table("tbl") da.