Xamarin.Forms.Core 1.0.0.0 1.1.0.0 1.2.0.0 1.3.0.0 1.4.0.0 1.5.0.0 2.0.0.0 System.Object An abstract class that provides a and a formatting option. To be added. Method 1.0.0.0 1.1.0.0 1.2.0.0 1.3.0.0 1.4.0.0 1.5.0.0 2.0.0.0 System.Void To be added. Stops synchronization on the . See for more information on enabling and disabling synchronization of collections in multithreaded environments. Method 1.0.0.0 1.1.0.0 1.2.0.0 1.3.0.0 1.4.0.0 1.5.0.0 2.0.0.0 System.Void The collection that will be read or updated. The context or lock object that will be passed to . May be . The synchronization callback. Starts synchronization on the by using and . Application developers implement and pass it to the method to enable correct multithreaded access to . After synchronization is enabled, the Xamarin.Forms framework passes an access method, , and a that indicates whether write access is needed, to the application developer's implementation of each time that the framework needs to modify the collection in a multithreaded environment. The application developer's implementation should decide, based on the object (which may be merely a locking object or the object on which the collection lives) and the value of the parameter, whether or not to lock while calling . Because Xamarin.Forms maintains a weak reference to , application developers do not need to call to aid in garbage collection. Property 1.0.0.0 1.1.0.0 1.2.0.0 1.3.0.0 1.4.0.0 1.5.0.0 2.0.0.0 Xamarin.Forms.BindingMode Gets or sets the mode for this binding. To be added. To be added. Property 1.0.0.0 1.1.0.0 1.2.0.0 1.3.0.0 1.4.0.0 1.5.0.0 2.0.0.0 System.String Gets or sets the string format for this binding. A string specifying the format for the value of this binding. Used for providing a display format for the binding value or compositing the value with other text. Implementors of decide how the string format is utilized, but all support standard conventions. allows for one argument for its singular value. A simple example showing compositing text and determining the display format for the value with a Method 1.0.0.0 1.1.0.0 1.2.0.0 1.3.0.0 1.4.0.0 1.5.0.0 2.0.0.0 System.Void Throws an if the binding has been applied. Use this method in property setters as bindings can not be changed once applied.