The primary key that uniquely identifies each item in a table. A primary key can be a one attribute (hash) primary key or a two attribute (hash-and-range) primary key.
 Declaration Syntax
 Declaration Syntax| C# | 
public class Key
 Members
 Members| All Members | Constructors | Methods | Properties | ||
| Icon | Member | Description | 
|---|---|---|
|  | Key()()()() | Initializes a new instance of the Key class | 
|  | Equals(Object) | (Inherited from Object.) | 
|  | GetHashCode()()()() | Serves as a hash function for a particular type. (Inherited from Object.) | 
|  | GetType()()()() | Gets the type of the current instance.(Inherited from Object.) | 
|  | HashKeyElement | 
            A hash key element is treated as the primary key, and can be a string or a number. Single attribute primary keys have one index value. The
            value can be String, Number, StringSet, NumberSet.
             
             | 
|  | RangeKeyElement | 
            A range key element is treated as a secondary key (used in conjunction with the primary key), and can be a string or a number, and is only
            used for hash-and-range primary keys. The value can be String, Number, StringSet, NumberSet.
             
             | 
|  | ToString()()()() | Returns a string that represents the current object.(Inherited from Object.) | 
|  | WithHashKeyElement(AttributeValue) | Obsolete. 
            Sets the HashKeyElement property
             | 
|  | WithRangeKeyElement(AttributeValue) | Obsolete. 
            Sets the RangeKeyElement property
             | 
 Inheritance Hierarchy
 Inheritance Hierarchy| Object | |
|  | Key |