Gets the part number which is between 1 to 10000. Each part has the Part number as its Id and for a given upload Id, the part number determine the part's position in the whole file. If there's another part upload with the same part number under the same upload Id, the existing data will be overwritten.

public Nullable<int> PartNumber { get; set; }

Public Property PartNumber As Nullable(Of Integer)
	Get
	Set

public:
property Nullable<int> PartNumber {
	Nullable<int> get ();
	void set (Nullable<int> value);
}

member PartNumber : Nullable<int> with get, set