A Grid View Updated Event Args object is passed to the event-handling method, which enables you to determine the number of rows affected and any exceptions that might have occurred.
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.For more information, see Merging Data Set Contents and Handling Data Adapter Events. The following examples demonstrate how to perform updates to modified rows by explicitly setting the Private Sub Adapter Update(By Val connection String As String) Using connection As Sql Connection = New Sql Connection( _ connection String) Dim adapter As Sql Data Adapter = New Sql Data Adapter( _ "SELECT Category ID, Category Name FROM dbo. Update Command = New Sql Command( _ "UPDATE Categories SET Category Name = @Category Name " & _ "WHERE Category ID = @Category ID", connection) adapter. encounters a change to a Data Row, it uses the Insert Command, Update Command, or Delete Command to process the change. Rows(0) category Row("Category Name") = "New Beverages" adapter. Write Line("Rows after update.") Dim row As Data Row For Each row In category Table. Write Line(": ", row(0), row(1)) Next End Using End Sub either by returning the auto-increment value as an output parameter of a stored procedure and mapping that to a column in a table, by returning the auto-increment value in the first row of a result set returned by a stored procedure or SQL statement, or by using the are sent to the data source is important. This allows you to maximize the performance of your ADO. For example, if a primary key value for an existing row is updated, and a new row has been added with the new primary key value as a foreign key, it is important to process the update before the insert. By specifying a subset of rows to be updated, you can control the order in which inserts, updates, and deletes are processed. I thought the rowupdating event was the place to do that, so I wrote the following method: A couple things to note: 1) the textbox and the label are inside an Item Template. Text "1111" 'set other update parameters Sql Data Source1. The textbox is visible when the gridview is in "edit mode", and the label is visible when the gridview is in "normal mode" 2) When I place a breakpoint in the rowupdating method, it looks like the values are changed as I would expect them to be. Update() End Sub Thanks, Qin, Thanks for the response. For example (I suppose you bind Grid View with Sql Data Source): Protected Sub Gridview1_Row Updating(sender As Object, e As Gridview Update Event Args) Sql Data Source1. The thing that's really confusing me is that when I set a breakpoint and go through the code line by line, it looks as though it's working. Hi juriggs, Make sure the update command really works in your case and rebind Grid View after updating it: Grid View1. If it still does not work, please paste the source code of Grid View of Sql Data Source and Row Updating event. As I mentioned before the user input is reflected in the updated Gridview - just not the appended "1111". For example, when the program executes: Sql Data Source1. Default Value = Direct Cast \ shortened for brevity my Autos Pane shows: Sql Data Source1. Default Value = "cheeseburgers1111" as the Value for the Parameter (with "cheeseburgers" being what I typed into the gridview cell). Also, I realized that the Grid View is inside of an Update Panel. In other words, if the user types in "cheeseburger", that is what shows in the updated Gridview. Row Index) End Sub btn Update_Click event (where I rebind the Gridview after looping through each row): Protected Sub btn Update_Click(By Val sender As Object, By Val e As Event Args) Dim i As Integer = 0 Do While (i Hi juriggs, I think you need to assign "DESCRIPTION" update parameter in btn Update_Click event. I'm not sure I quite understand what you're saying. 1) I need to assign the "DESCRIPTION" update parameter in the button click event, not the Update Row function. Text "1111" Qin, Sorry about the lag in my response time - for some reason I didn't get an update email saying you had written back. I'll try a few places and let you know what happens.