ContactAnnotationStore.FindAnnotationListsAsync Method
Definition
Important
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Asynchronously gets the list of ContactAnnotationList objects for the app.
public:
virtual IAsyncOperation<IVectorView<ContactAnnotationList ^> ^> ^ FindAnnotationListsAsync() = FindAnnotationListsAsync;/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<IVectorView<ContactAnnotationList>> FindAnnotationListsAsync();[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<IReadOnlyList<ContactAnnotationList>> FindAnnotationListsAsync();function findAnnotationListsAsync()Public Function FindAnnotationListsAsync () As IAsyncOperation(Of IReadOnlyList(Of ContactAnnotationList))Returns
The list of ContactAnnotationList objects.
- Attributes
Windows requirements
| App capabilities |
contactsSystem
|
Examples
The following example provides reusable methods for creating an annotation list, deleting a specific annotation list, and deleting all annotation lists in a store.
public async Task<ContactAnnotationList> CreateAnnotationList()
{
// Get the data store.
ContactAnnotationStore store = await ContactManager.RequestAnnotationStoreAsync(ContactAnnotationStoreAccessType.AppAnnotationsReadWrite);
// Create a new list.
ContactAnnotationList list = await store.CreateAnnotationListAsync();
// Find the list to verify it was created.
IReadOnlyList<ContactAnnotationList> lists = await store.FindAnnotationListsAsync();
for (int i = 0; i < lists.Count; i++)
{
// Do the IDs match?
if (list.Id == lists[i].Id)
{
// Found it! Return the new list.
return(list);
}
}
// List not created, return null.
return(null);
}
public async Task<Boolean> DeleteAnnotationList(string listId)
{
// Get the store.
ContactAnnotationStore store = await ContactManager.RequestAnnotationStoreAsync(ContactAnnotationStoreAccessType.AppAnnotationsReadWrite);
// Find the list.
ContactAnnotationList list = await store.GetAnnotationListAsync(listId);
// Make sure we got it.
if (list.Id == listId)
{
// Delete the list.
await list.DeleteAsync();
return true;
}
return false;
}
public async Task<Boolean> DeleteAllAnnotationLists()
{
// Get the store.
ContactAnnotationStore store = await ContactManager.RequestAnnotationStoreAsync(ContactAnnotationStoreAccessType.AppAnnotationsReadWrite);
IReadOnlyList<ContactAnnotationList> lists = await store.FindAnnotationListsAsync();
// Make sure at least one annotation list exists.
if (lists.Count > 0)
{
// Find the list.
for (int i = 0; i < lists.Count; i++)
{
await lists[i].DeleteAsync();
}
return true;
}
return false;
}