WinJS.UI.IItemPromise interface
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Provides a mechanism for retrieving IItem objects asynchronously.
Syntax
This object can't be directly instantiated by your code.
Members
The IItemPromise interface has these types of members:
- Events
- Methods
- Properties
Events
The IItemPromise interface has these events.
| Event | Description |
|---|---|
| onerror | Occurs when there is an error in processing. |
Methods
The IItemPromise interface has these methods.
| Method | Description |
|---|---|
| cancel | Attempts to cancel the fulfillment of a promised value. If the promise hasn't already been fulfilled and cancellation is supported, the promise enters the error state with a value of Error("Canceled"). |
| done | Allows you to specify the work to be done on the fulfillment of the promised value, the error handling to be performed if the promise fails to fulfill a value, and the handling of progress notifications along the way. After the handlers have finished executing, this function throws any error that would have been returned from then as a promise in the error state. |
| release | Stops change notification tracking for the IItem that fulfills this IItemPromise. |
| retain | Begins change notification tracking for the IItem that fulfills this IItemPromise. |
| then | Allows you to specify the work to be done on the fulfillment of the promised value, the error handling to be performed if the promise fails to fulfill a value, and the handling of progress notifications along the way. |
Properties
The IItemPromise interface has these properties.
| Property | Access type | Description |
|---|---|---|
Read/write |
Gets or sets the temporary ID of the IItem that fulfills this promise. |
|
Read/write |
Gets or sets the index of the IItem contained by this IItemPromise. |
Requirements
Minimum WinJS version |
WinJS 3.0 |
Namespace |
WinJS.UI |