probleem met cellcontentclick event in datagrid

[johndewitte]

Beste forumleden,
ik wil in een datagrid cellcontent wijzigen door middel van een button.
de verkoopprijs wil ik aanpassen door een berekening op die waarde uit te voeren.
daartoe moet ik deze cell inhoud kunnen selecteren.

Dit doe ik met volgende code:

 Private Sub DGV2_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGV2.CellContentClick
        If e.ColumnIndex <> 12 Then
            Exit Sub
        Else
            Dim x As Decimal
            Dim V As Decimal
            x = CDec(DGV1.Rows(e.RowIndex).Cells(7).Value)
           
        End If
    End Sub

De foutmelding die ik krijg:code exception =
System.ArgumentOutOfRangeException was unhandled
Message=Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
ParamName=index
Source=mscorlib
StackTrace:
at System.Collections.ArrayList.get_Item(Int32 index)
at System.Windows.Forms.DataGridViewRowCollection.SharedRow(Int32 rowIndex)
at System.Windows.Forms.DataGridViewRowCollection.get_Item(Int32 index)
at WindowsApplication1.Ticket.DGV2_CellContentClick(Object sender, DataGridViewCellEventArgs e) in C:\Documents and Settings\jo\Mijn documenten\Visual Studio 2010\Projects\combo2local\Ticket.vb:line 646
at System.Windows.Forms.DataGridView.OnCellContentClick(DataGridViewCellEventArgs e)
at System.Windows.Forms.DataGridView.OnCommonCellContentClick(Int32 columnIndex, Int32 rowIndex, Boolean doubleClick)
at System.Windows.Forms.DataGridViewCell.OnMouseUpInternal(DataGridViewCellMouseEventArgs e)
at System.Windows.Forms.DataGridView.OnCellMouseUp(DataGridViewCellMouseEventArgs e)
at System.Windows.Forms.DataGridView.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.DataGridView.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(ApplicationContext context)
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
at WindowsApplication1.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:

Weet niet waar ik moet zoeken om deze foutmelding niet meer te krijgen.
Ik zou help waarderen.

Grt,

John

 

[JoZ1]

Je indexwaarde is te groot (afgaand op de foutmelding)

De index begint altijd bij 0. Dus als je 4 rijen hebt, selecteer je zo de 4e rij:
Rij(3) en niet Rij(4).