private void ShowGridPreview(DevExpress.XtraGrid.GridControl grid) {
// Check whether the Grid Control can be previewed.
if(!grid.IsPrintingAvailable) {
MessageBox.Show("The 'DevExpress.XtraPrinting' Library is not found", "Error");
return;
}
// Opens the Preview window.
grid.ShowPreview();
}

Sub ShowGridPreview(ByVal grid As DevExpress.XtraGrid.GridControl)
' Check whether the Grid Control can be previewed.
If Not grid.IsPrintingAvailable Then
MessageBox.Show("The 'DevExpress.XtraPrinting' Library is not found", "Error")
Return
End If
' Opens the Preview window.
grid.ShowPreview()
End Sub