SQLServerCentral / Anything that is NOT about SQL! / SQLServerCentral.com / VB.net error / Latest PostsInstantForum.NET v2.9.0SQLServerCentralhttp://www.sqlservercentral.com/Forums/notifications@sqlservercentral.comThu, 23 May 2013 16:37:28 GMT20RE: VB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspx[quote][b]mister.magoo (1/16/2013)[/b][hr][quote][b]pwalter83 (1/16/2013)[/b][hr][quote][b]mister.magoo (1/16/2013)[/b][hr]And do you actually have a component on the page called GridView1?[/quote]Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked ![/quote]That's nice, but for your sake and others who follow you, I would change the drop down list name to something more meaningful and then modify the code to correctly reference the drop down list name...GridView1 isn't really a good name for a drop down list now is it? ;-)[/quote]Actually I have changed the name to a more meaningful now. Thanks again !Wed, 16 Jan 2013 07:59:28 GMTpwalter83RE: VB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspx[quote][b]pwalter83 (1/16/2013)[/b][hr][quote][b]mister.magoo (1/16/2013)[/b][hr]And do you actually have a component on the page called GridView1?[/quote]Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked ![/quote]That's nice, but for your sake and others who follow you, I would change the drop down list name to something more meaningful and then modify the code to correctly reference the drop down list name...GridView1 isn't really a good name for a drop down list now is it? ;-)Wed, 16 Jan 2013 05:41:18 GMTmister.magooRE: VB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspx[quote][b]mister.magoo (1/16/2013)[/b][hr]And do you actually have a component on the page called GridView1?[/quote]Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked !Wed, 16 Jan 2013 05:36:13 GMTpwalter83RE: VB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspxblankWed, 16 Jan 2013 05:35:06 GMTpwalter83RE: VB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspxIt has been awhile since I've done any VB.net, but don't you need a WithEvents variable?e.g.[code="vb"]Dim WithEvents ev As New EventClassSub TestEvents() ev.RaiseEvents()End SubSub ev_EventHandler() Handles ev.XEvent, ev.YEvent MsgBox("Received Event.")End Sub[/code][hr][b]--EDIT--[/b][hr]Also, I take it you've had a look at the Microsoft tutorial?[code="vb"]<%@ Page language="VB" %><script runat="server"> Sub CustomersGridView_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) ' Get the currently selected row using the SelectedRow property. Dim row As GridViewRow = CustomersGridView.SelectedRow ' Display the company name from the selected row. ' In this example, the third column (index 2) contains ' the company name. Message.Text = "You selected " & row.Cells(2).Text & "." End Sub Sub CustomersGridView_SelectedIndexChanging(ByVal sender As Object, ByVal e As GridViewSelectEventArgs) ' Get the currently selected row. Because the SelectedIndexChanging event ' occurs before the select operation in the GridView control, the ' SelectedRow property cannot be used. Instead, use the Rows collection ' and the NewSelectedIndex property of the e argument passed to this ' event handler. Dim row As GridViewRow = CustomersGridView.Rows(e.NewSelectedIndex) ' You can cancel the select operation by using the Cancel ' property. For this example, if the user selects a customer with ' the ID "ANATR", the select operation is canceled and an error message ' is displayed. If row.Cells(1).Text = "ANATR" Then e.Cancel = True Message.Text = "You cannot select " + row.Cells(2).Text & "." End If End Sub</script><html> <body> <form runat="server"> <h3>GridView Select Example</h3> <asp:gridview id="CustomersGridView" datasourceid="CustomersSource" autogeneratecolumns="true" autogenerateselectbutton="true" allowpaging="true" selectedindex="0" onselectedindexchanged="CustomersGridView_SelectedIndexChanged" onselectedindexchanging="CustomersGridView_SelectedIndexChanging" runat="server"> <selectedrowstyle backcolor="LightCyan" forecolor="DarkBlue" font-bold="true"/> </asp:gridview> <br/> <asp:label id="Message" forecolor="Red" runat="server"/> <!-- This example uses Microsoft SQL Server and connects --> <!-- to the Northwind sample database. Use an ASP.NET --> <!-- expression to retrieve the connection string value --> <!-- from the Web.config file. --> <asp:sqldatasource id="CustomersSource" selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]" connectionstring="<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body></html>[/code]Wed, 16 Jan 2013 05:31:04 GMTCadavreRE: VB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspxAnd do you actually have a component on the page called GridView1?Wed, 16 Jan 2013 05:22:16 GMTmister.magooVB.net errorhttp://www.sqlservercentral.com/Forums/Topic1407760-61-1.aspxHi,I get this error when I build my code:"Handles clause requires a WithEvents variable defined in the containing type or one of its base types."Please find my code below (the error line is in bold):------------------------------------- Public Class _Default Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load End Sub Protected Sub GridView1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles [b]GridView1[/b].SelectedIndexChanged End SubEnd Class-------------------------------------Thanks,PaulWed, 16 Jan 2013 05:09:06 GMTpwalter83