January 16, 2013 at 5:09 am
Hi,
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 GridView1.SelectedIndexChanged
End Sub
End Class
-------------------------------------
Thanks,
Paul
January 16, 2013 at 5:22 am
And do you actually have a component on the page called GridView1?
MM
select geometry::STGeomFromWKB(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anuary 16, 2013 at 5:31 am
It has been awhile since I've done any VB.net, but don't you need a WithEvents variable?
e.g.
Dim WithEvents ev As New EventClass
Sub TestEvents()
ev.RaiseEvents()
End Sub
Sub ev_EventHandler() Handles ev.XEvent, ev.YEvent
MsgBox("Received Event.")
End Sub
<%@ 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>
January 16, 2013 at 5:35 am
blank
January 16, 2013 at 5:36 am
mister.magoo (1/16/2013)
And do you actually have a component on the page called GridView1?
Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked !
January 16, 2013 at 5:41 am
pwalter83 (1/16/2013)
mister.magoo (1/16/2013)
And do you actually have a component on the page called GridView1?Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked !
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? 😉
MM
select geometry::STGeomFromWKB(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anuary 16, 2013 at 7:59 am
mister.magoo (1/16/2013)
pwalter83 (1/16/2013)
mister.magoo (1/16/2013)
And do you actually have a component on the page called GridView1?Thanks a lot for your help, I renamed the dropdownlist as GridView1 and it worked !
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? 😉
Actually I have changed the name to a more meaningful now. Thanks again !
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