# SelectionMode

`SelectionMode`

  Enumerates the modes to be used when performing selections.

  ## Index

  Enumeration Members

  - `Add`
  - `Set`
  - `Toggle`

## Enumeration Members

`SelectionMode.``Add`
  Add: 1

  Adds the item to the contents of the selection set.

`SelectionMode.``Set`
  Set: 0

  Sets the contents of the selection set to the supplied item. All other selected items will be removed from the selection set.

`SelectionMode.``Toggle`
  Toggle: 2

  If the selection item is in the selection set, removes it. If it is not in the selection set, adds it.

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