LocalOwnerPresence.BeginPublishPresence Method (ICollection<PresenceCategoryWithMetaData>, AsyncCallback, Object)

  • [アーティクル]

Begins an asynchronous operation to publish a given list of categories.

Namespace:  Microsoft.Rtc.Collaboration.Presence
Assembly:  Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)

Syntax

'Declaration
Public Function BeginPublishPresence ( _
    categories As ICollection(Of PresenceCategoryWithMetaData), _
    userCallback As AsyncCallback, _
    state As Object _
) As IAsyncResult
'Usage
Dim instance As LocalOwnerPresence
Dim categories As ICollection(Of PresenceCategoryWithMetaData)
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult

returnValue = instance.BeginPublishPresence(categories, _
    userCallback, state)

public IAsyncResult BeginPublishPresence(
    ICollection<PresenceCategoryWithMetaData> categories,
    AsyncCallback userCallback,
    Object state
)

Parameters

  • userCallback
    Type: System.AsyncCallback
    The method to be called when the asynchronous operation is completed.
  • state
    Type: System.Object
    A user-provided object that distinguishes this particular asynchronous operation from other asynchronous operations.

Return Value

Type: System.IAsyncResult
An IAsyncResult that references the asynchronous operation.

Exceptions

Exception Condition
InvalidOperationException

Thrown when the endpoint is not in the "registered" state.
ArgumentNullException

Thrown when categories is null.
ArgumentException

Thrown when categories contains a null CategoryItem.

Remarks

Deleting a publication involves publishing the PresenceCategoryWithMetaData object again with the ExpiryPolicy set to Time and Expires set to the value zero.

See Also

Reference

LocalOwnerPresence Class

LocalOwnerPresence Members

BeginPublishPresence Overload

Microsoft.Rtc.Collaboration.Presence Namespace