Gets or sets whether the Tile is checked. This is a dependency property.
true, if the Tile is in the checked state; otherwise, false. The default is false.
If the TileBase.AllowCheck property is set to True, a Tile can be in the checked state. When the Tile is checked (the Checked property is set to true), it displays a check mark, as demonstrated below.
By default, the tick symbol is used to indicate checked Tiles. You can override the default check mark using the TileBase.CheckMarkStyle property.
At runtime, end-users can change the check state by tapping/clicking Tiles. To specify how a Tile can be checked/unchecked, use the TileBase.CheckMode property.
If the TileBase.AllowCheck property is set to Default or False, the Tile is not displayed in the checked state even if the Checked property is set to True. To get whether the Tile is actually displayed checked, read the TileBase.IsChecked property.