/// <remarks/>
public void getByContactGroupIdAsync(GetByContactGroupIdRequest getByContactGroupIdRequest, object userState) {
if ((this.getByContactGroupIdOperationCompleted == null)) {
this.getByContactGroupIdOperationCompleted = new System.Threading.SendOrPostCallback(this.OngetByContactGroupIdOperationCompleted);
}
this.InvokeAsync("getByContactGroupId", new object[] {
getByContactGroupIdRequest}, this.getByContactGroupIdOperationCompleted, userState);
}
/// <remarks/>
public void getByContactGroupIdAsync(GetByContactGroupIdRequest getByContactGroupIdRequest) {
this.getByContactGroupIdAsync(getByContactGroupIdRequest, null);
}