Public Property Cancel As Boolean

Dim instance As DragDropBlockEventArgs
Dim value As Boolean
 
instance.Cancel = value
 
value = instance.Cancel

public bool Cancel {get; set;}

private void fpSpread1_DragDropBlock(object sender, FarPoint.Win.Spread.DragDropBlockEventArgs e)
{
    if (e.Action == 0)
    {
        e.Cancel = true;
    }
    else if (e.Action == 1) 
    {
        e.Cancel = false;
    }
}

Private Sub FpSpread1_DragDropBlock(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.DragDropBlockEventArgs) Handles
FpSpread1.DragDropBlock
    If e.Action = 0 Then
        e.Cancel = True
    ElseIf e.Action = 1 Then
        e.Cancel = False
    End If
End Sub