C# Copying An Array Class

How do I copy the contents from this array class  (valueconditions) to a new array class (obj.valueCondition)?

 private treeNode[] GetAllSupplierProductsUsingFilter(valueCondition valueconditions)
        {
                queryType obj = new queryType();
               obj.valueCondition = valueconditions;   --> Help?
         }

Here is how they are defined.
        valueCondition valueconditions = new valueCondition();


 public partial class valueCondition : object, System.ComponentModel.INotifyPropertyChanged {
       
        private string attributeURLField;
       
        private string attributeValueField;
       
        [System.Xml.Serialization.XmlElementAttribute(Order=0)]
        public string attributeURL {
            get {
                return this.attributeURLField;
            }
            set {
                this.attributeURLField = value;
                this.RaisePropertyChanged("attributeURL");
            }
        }
       
        [System.Xml.Serialization.XmlElementAttribute(Order=1)]
        public string attributeValue {
            get {
                return this.attributeValueField;
            }
            set {
                this.attributeValueField = value;
                this.RaisePropertyChanged("attributeValue");
            }
        }