/// <summary>
/// Initiates an operation to add av call to the conversation by providing a callback phone number.
/// </summary>
/// <param name="callback">Callback method.</param>
/// <param name="state">User state.</param>
/// <returns>Async result reference.</returns>
public IAsyncResult BeginAddClickToCall(string callbackNumber, AsyncCallback callback, object state)
{
if (this.State != ConversationModelState.Established)
{
throw new InvalidOperationException(ExceptionResource.InvalidState);
}
if (String.IsNullOrEmpty(callbackNumber))
{
throw new ArgumentException(ExceptionResource.InvalidCallbackNumber);
}
AddClickToCallAsyncResult asyncResult = new AddClickToCallAsyncResult(this, callbackNumber, callback, state);
asyncResult.Process();
return(asyncResult);
}
/// <summary>
/// Waits for corresponding begin operation to complete.
/// </summary>
/// <param name="asyncResult">Async result from the corresponding begin method.</param>
public void EndAddClickToCall(IAsyncResult asyncResult)
{
if (asyncResult == null)
{
throw new ArgumentException(ExceptionResource.InvalidAsyncResult);
}
else
{
AddClickToCallAsyncResult addClickToCallAsyncResult = asyncResult as AddClickToCallAsyncResult;
if (addClickToCallAsyncResult == null)
{
throw new ArgumentException(ExceptionResource.InvalidAsyncResult);
}
else
{
addClickToCallAsyncResult.EndInvoke();
}
}
}