public override async Task FollowUp()
{
//Remove child activity if its not specified or add it if is not yet added
if (string.IsNullOrEmpty(ActivityUI.DataSourceSelector.Value))
{
await HubCommunicator.DeleteExistingChildNodesFromActivity(ActivityId);
ActivityContext.ActivityPayload.ChildrenActivities.Clear();
PreviousSelectedDataSourceId = null;
CachedData = null;
}
else if (string.IsNullOrEmpty(PreviousSelectedDataSourceId) || PreviousSelectedDataSourceId != ActivityUI.DataSourceSelector.Value)
{
var activityTemplate = await HubCommunicator.GetActivityTemplate(Guid.Parse(ActivityUI.DataSourceSelector.Value));
await HubCommunicator.DeleteExistingChildNodesFromActivity(ActivityId);
ActivityContext.ActivityPayload.ChildrenActivities.Clear();
await HubCommunicator.AddAndConfigureChildActivity(ActivityContext.ActivityPayload, activityTemplate, order : 1);
PreviousSelectedDataSourceId = ActivityUI.DataSourceSelector.Value;
CachedData = null;
}
}