Asp net gridview rowupdating new values empty
Protected Sub Page_Load(By Val sender As Object, By Val e As System. Load Dim i Col As Integer, c As Integer = 0, i Chx As Integer 'If In Str(Http Context.
Selected = True Else End If Fill Grid View() End Sub Private Sub Fill Grid View() Dim i Col As Integer, c As Integer = 0, i Chx As Integer, i As Integer Dim str SQL As New System. String Builder Dim str Params As String = "" 'THE FOLLOWING CODE THAT INDICATES SPECIFIC COLUMN NUMBERS IS DETERMINED 'BY THE HTML ASPX CODE THAT DETERMINES HOW THE GRIDVIEW LOOKS For i Chx = 0 To Me.
In this article, I am going to explain how to insert, update or delete a row from a grid view control. At run time, the Eval method calls the Eval method of the Data Binder object.
If you are new to using a grid control, I would recommend you to read my blogs “Using Grid View in ASP. The Eval method takes the name of a data field and returns a string containing the value of that field from the current record in the data source.
I have a dynamically created gridview, it's autogeneratedcolumns is set to True, and it databinds on every postback. If i move the databind to load (which fires before the Row Updating) it ceases to work correctly, and the newvalues are null. Dim o Conn as new Sql Connection("") Dim o Cmd as new Sql Command("Update Sp", o Conn) o Cmd. Guys maybe it's just Friday evening and I've already had 1 Guinness to ease the tension, but you two just flew about 30,000 feet over my head. Crack open reflector and look at the Grid View's source code. The event arguments will ALWAYS be empty unless you are bound to a datasource control. created the following code in VB, and though it runs without error, it's not doing anything for me. This is such a monumental show stopper after all the work I have put into this web site, I can't believe there isn't a straight forward method of retrieving the new values. Edit Index) Dim dict Values As New Ordered Dictionary Dim o Ctl As Control For Each o Ctl In gv Row. Row State, False) End If Next Dim dict Entry As Dictionary Entry For Each dict Entry In dict Values Try Msg Box(dict Entry. To String) Catch ex As Exception End Try Next Public Shared Function Get Values(row As Grid View Row) As IDictionary (Of String, Object ) Dim values = New Ordered Dictionary() For Each control As Control In row. Unfortunately I am getting identical results...same I have always been getting which is just the old values. Try to write a small sample with one column and that one event and see if it works.
Now, when an user edit a row then click update, I'm having problem getting the new values in gridview's rowupdating event, it always returns the old values. With that being said you could go directly after the form post data perhaps, i usually find it's easiest to debug then search through and find your key value pair. I'll take a closer look at your posts maybe tomorrow, and definitely Monday, but I'm just a hack, and I so close to dumping this whole thing and lettting someone else do it...whooops there isn't anyone else... The new values are not being retrieved, just the old values. Excuse my crude Msg Box methos; it only goes to prove what a hack I am. Controls Dim dcfc Cell As Data Control Field Cell = o Ctl If dcfc Cell Is DBNull. Controls Dim cell As Data Control Field Cell = Try Cast(control, Data Control Field Cell) If cell Is Not Nothing And Also cell. By the way, when I attempted to cut and paste your code, the compiler would not accept the arguments (String, Object) at the end of IDictionary, saying that IDictionary has no parameters, and also in the return values portion below it complains that Dictionary is not a type. Dictionary is a generic type and you have to include System. I'm not sure whats going on in your case Yes I am getting the exact data that's in the edit row. It's a record that looks similar to the other data in the database, but it is defintiely different values so I am confident that I am looking at the edit row.
Grid View displays the values of a data source in a table where each column represents a field and each row represents a record.
I have a whole host of filters that do not work now since they rely on the auto postback feature in check boxes and drop down lists that I have. To String(), "ecylkows") = 1 Then i Col = i Chx 1 Track Projects. Data Bind() End Sub Its not your fault that the new values are empty. Is Post Back) otherwise you'll wipe out the new values everytime before the updating event gets called. The key fields are defined in the Data Key Names property of a Grid View control.The Old Values property is automatically populated with the original values of all the field name/value pairs in the row.