I have a ajax autocomplete textbox on my umbracopage which has been working fine comparing prefixtext agains two properties from my documenttype.

However, yesterday I added a third property to compare against and this is where the problem comes in.

Following code works fine

Node node = new umbraco.presentation.nodeFactory.Node(1079);
            foreach (Node child in node.Children)
            {
                foreach (Node child2 in child.Children)
                {
                    foreach (Node child3 in child2.Children)
                    {
                        if (child3.NodeTypeAlias == "Product" && child3.GetProperty("name").Value.ToUpper().Contains(prefixText.ToUpper())
                            || child3.NodeTypeAlias == "Product" && child3.GetProperty("articleNr").Value.ToUpper().Contains(prefixText.ToUpper()))
                        {
                            namn.Add(child3.GetProperty("articleNr").Value +  "-" + child3.Name);

                        }

                        foreach (Node child4 in child3.Children)
                        {
                            if (child4.NodeTypeAlias == "Product" && child4.GetProperty("name").Value.ToUpper().Contains(prefixText.ToUpper())
                            || child4.NodeTypeAlias == "Product" && child4.GetProperty("articleNr").Value.ToUpper().Contains(prefixText.ToUpper()))
                            {
                                namn.Add(child4.GetProperty("articleNr").Value + "-" + child4.Name);
                            }

                        }
                    }
                }

            }

However if I add my newly created property(keys) as a third condition the whole ajax autocomplete fails in showing anything at all.

Like this.

if (child3.NodeTypeAlias == "Product" && child3.GetProperty("name").Value.ToUpper().Contains(prefixText.ToUpper())
   || child3.NodeTypeAlias == "Product" && child3.GetProperty("articleNr").Value.ToUpper().Contains(prefixText.ToUpper())
   || child3.NodeTypeAlias == "Product" && child3.GetProperty("keys").Value.ToUpper().Contains(prefixText.ToUpper()))

the property keys is a textstring just like name and articleNr