Creates an Expr whose value is given by the supplied object.
If it is an array, it must be a 1- or 2-dimensional array of primitive types or strings. It cannot be jagged (that is, it must be typed like int[,], not int). The data in the array is copied into the Expr, so future changes to the original array will not be reflected in the Expr.
|ArgumentException||If the object is of a type that cannot be handled.|