Question

I have the following method signature:

public void MyFunction(Object[,] obj) 

I create this object:

List<List<Object>> obj = new List<List<Object>>; 

Is there an easy way I can convert this to an Object[,]?

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UPDATE:

The fact is I like to use Lists because I can easily add a new item. Is there a way I can declare my List<> object to fit this need? I know the number of columns in my Object[,] but not the number of rows.

Answer 1

No. In fact, these aren’t necessarily compatible arrays.

[,] defines a multidimensional array. List<List<T>> would correspond more to a jagged array ( object[][] ).

The problem is that, with your original object, each List<object> contained in the list of lists can have a different number of objects. You would need to make a multidimensional array of the largest length of the internal list, and pad with null values or something along those lines to make it match.