ContactGroupServices.BeginDeleteContact Method
Begins an asynchronous operation to remove a specified contact.
Namespace: Microsoft.Rtc.Collaboration.ContactsGroups
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginDeleteContact ( _
contactUri As String, _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As ContactGroupServices
Dim contactUri As String
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginDeleteContact(contactUri, _
userCallback, state)
public IAsyncResult BeginDeleteContact(
string contactUri,
AsyncCallback userCallback,
Object state
)
Parameters
- contactUri
Type: System.String
The contact to be deleted.
- 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 |
---|---|
ArgumentNullException | Thrown when contactUri is null. |
ArgumentException | Thrown when contactUri is empty. |
InvalidOperationException | Thrown when subscription state is not idle or subscribed. |