public object Clone (); You can use CType for convert your object to an array again: CType(clone_dArr, Double()).AsEnumerable(), here you go its resolved Add the following code to the class to expose a public constructor that takes a file path as an input parameter. Right-click the StreamReaderEnumerable project, point to Add, and then click New Item. c# - Cast object to IEnumerable - Stack Overflow Rust smart contracts? If you want to convert single object to IEnumerable then, you should implement IEnumerable interface to 'Inventory' class. @John: At compile? The following example demonstrates how to implement the IEnumerable<T> interface and how to use that implementation to create a LINQ query. This answer is enough if we are using List. You have to create a List first and add your object to that list, as, And then you can assign your list to the enumerable, as. So I've got a class and a generic List inside of it, but it is private. In UIpath forum , I got the related link How to cast Object to IEnumerable for looping in For each? IEnumerable