Allows you to provide an attribute name, and whether or not Amazon DynamoDB should check to see if the attribute value already exists; or if the attribute value exists and has a particular value before changing it.
 Declaration Syntax
 Declaration Syntax| C# | 
public class ExpectedAttributeValue
 Members
 Members| All Members | Constructors | Methods | Properties | ||
| Icon | Member | Description | 
|---|---|---|
|  | ExpectedAttributeValue()()()() | Initializes a new instance of the ExpectedAttributeValue class | 
|  | Equals(Object) | (Inherited from Object.) | 
|  | Exists | 
            Specify whether or not a value already exists for the attribute name-value pair.
             
             | 
|  | GetHashCode()()()() | Serves as a hash function for a particular type. (Inherited from Object.) | 
|  | GetType()()()() | Gets the type of the current instance.(Inherited from Object.) | 
|  | ToString()()()() | Returns a string that represents the current object.(Inherited from Object.) | 
|  | Value | 
            Specify whether or not a value already exists and has a specific content for the attribute name-value pair.
             
             | 
|  | WithExists(Boolean) | Obsolete. 
            Sets the Exists property
             | 
|  | WithValue(AttributeValue) | Obsolete. 
            Sets the Value property
             | 
 Inheritance Hierarchy
 Inheritance Hierarchy| Object | |
|  | ExpectedAttributeValue |