public string GetBranchesByCampaign(Guid idCampaign)
{
var taskList = _taskCampaignBusiness.GetTasksBranchesByCampaign(idCampaign, ApplicationUserCurrent.AccountId);
var resultList = ConvertTask.ConvertTaskListToCampaignBranchesViewModelList(taskList);
return(JSonConvertUtil.Convert(resultList));
}