/// <remarks/>
public void removeAllContactsFromGroupAsync(RemoveAllContactsRequest removeAllContactsFromGroupRequest, object userState) {
if ((this.removeAllContactsFromGroupOperationCompleted == null)) {
this.removeAllContactsFromGroupOperationCompleted = new System.Threading.SendOrPostCallback(this.OnremoveAllContactsFromGroupOperationCompleted);
}
this.InvokeAsync("removeAllContactsFromGroup", new object[] {
removeAllContactsFromGroupRequest}, this.removeAllContactsFromGroupOperationCompleted, userState);
}
/// <remarks/>
public void removeAllContactsFromGroupAsync(RemoveAllContactsRequest removeAllContactsFromGroupRequest) {
this.removeAllContactsFromGroupAsync(removeAllContactsFromGroupRequest, null);
}