Method: Join( … )
Returns a string that contains a concatenation of all specified parts separated with the specified separator.
Syntax
string Join( string separator, params string[] parts )
Example
Name = "Category";
// If the Input-row Category is "Vehicles" and Sub Category is "Cars"
Value = Join( "|", "Root", "{Category}", "{Sub Category}" );
// parts contained in brackets {} will be looked up in Input-row
// The Value will now be "Root|Vehicles|Cars"