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Class
UndoCommand
Inherits:TextCommand
Undoes the field's last edit. Applies while the field is editable and has an edit to undo.
public override bool IsApplicable(in TextCommandContext context)Whether the command applies to the field's current state. A menu hides or disables a command that does not apply, and a command runs only while it applies.
public override void Execute(in TextCommandContext context)Runs the command against the field's current state, to which it applies (IsApplicable).