topic Re: Strange behavior when working with tasks in ArcGIS Pro and C# in ArcGIS Pro SDK Questions

Strange behavior when working with tasks in ArcGIS Pro and C#

CarstenAndersson — Thu, 09 Aug 2018 12:14:59 GMT

Hi.

I've noticed something strange when developing a C# add-in for ArcGIS Pro.

I've created one task item with two task "inside".

I want to iterate through the list of tasks, like so:

var taskItem = Project.Current.GetItems<TaskProjectItem>().FirstOrDefault();

TaskItemInfo taskItemInfo = taskItem.GetTaskItemInfo(); // <-- This line is throwing the NullReferenceException

IEnumerable<TaskInfo> taskInfos = taskItemInfo.GetTasks();

foreach (TaskInfo taskInfo in taskInfos)
{

// do something
}

But the 2nd line is throwing an exception. I don't understand why. I've actually taken the code from ArcGIS Pro 2.2 API Reference Guide with the same result. I don't get it.

Any help would be greatly appreciated

Re: Strange behavior when working with tasks in ArcGIS Pro and C#

NarelleChedzey — Thu, 09 Aug 2018 18:40:13 GMT

Hi Carsten,

Unfortunately this is a bug. If you ensure you have the task pane open when you run this code, it should succeed.

I have added an issue to our backlog to fix this for the next release.

Sorry for the inconvenience.

Narelle

Re: Strange behavior when working with tasks in ArcGIS Pro and C#

CarstenAndersson — Mon, 13 Aug 2018 12:25:33 GMT

Hi Narelle.

Thanks a lot for the reply I will look forward to the fix.

Carsten