how to change current cell at run time

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VB

hi
my form having only one datagridview control with 5 column
the code is here

Public Class Form2
    Private Sub DataGridView1_CellValidating(ByVal sender As Object,
      ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) 
      Handles DataGridView1.CellValidating
        If e.ColumnIndex = 1 Then
            DataGridView1.CurrentCell = New DataGridViewCell(1, 4)
        End If
    End Sub
End Class

I want change current cell to a prticular cell

if i give this command:

myGrid.CurrentCell = New DataGridViewCell(1, 3)

i got error message :
New cannot be used a class that is declared mustinherit

i change the command like this:

myGrid.CurrentCell = DataGridViewCell(1, 3)

now i get this error message:
DataGridViewCell is a type and cannot be used as an expression

if i change the command like this:

myGrid.CurrentCell = Me.myGrid(1, 3)

iam getting this error:
An unhandled exception of type 'System.StackOverflowException' occurred in xxxx.exe

help me to change my current cell.

thomas