how to display multiple columns in devexpress lookupedit code example

Example: how to display multiple columns in devexpress lookupedit

private void PopulateLookUpEditors()
{
  	///... some code
  	lookUpEditProject.CustomDisplayText += LookUpEditProject_CustomDisplayText;
}

private void LookUpEditProject_CustomDisplayText(object sender, CustomDisplayTextEventArgs e)
{
     var edit = (LookUpEdit)sender;
     var dataRow = edit.GetSelectedDataRow();
     if (dataRow is ProdOrder order)
     {
          e.DisplayText = $"{order.PANummer}  -  {order.ProjectNumber}  -  {order.Description}  -  {order.Customer}";
     }
           
}