Add To/Update Dictionary
Adds a new key-value pair to the Dictionary. If the Dictionary does not exist, a new instance is created. If the key already exists in it, an exception will be thrown except if the Update If Exists option is enabled.

Properties
| Name | Description | 
|---|---|
| Key | The key of the element to add. | 
| Dictionary | The Dictionary instance to receive the new key-value pair. | 
| UpdateIfExists | If the key already exists in the Dictionary, updates its value. | 
| Value | The value of the element to add. The value can be null for reference types. |