topic Re: edit and/or delete a task in Navisworks API Forum

edit and/or delete a task

Anonymous — Thu, 24 May 2018 15:47:15 GMT

through API is it possible to edit o delete a specific task?

Regards

Steve

Re: edit and/or delete a task

Anonymous — Fri, 25 May 2018 07:21:52 GMT

Find timeliner project on sdk

Re: edit and/or delete a task

Anonymous — Fri, 25 May 2018 09:02:18 GMT

@Anonymous can you say me with solution (name of the solution) do you mean please?

Re: edit and/or delete a task

Anonymous — Mon, 28 May 2018 00:32:00 GMT

It means to look for navisworks sdk

Re: edit and/or delete a task

Anonymous — Mon, 28 May 2018 08:40:42 GMT

Could you send me the navisowrks sdk example that you mean please?

Re: edit and/or delete a task

Anonymous — Tue, 09 Oct 2018 09:35:04 GMT

Any solution at the end? @xiaodong_liang could you have a look please?

Re: edit and/or delete a task

xiaodongliang — Thu, 01 Nov 2018 04:19:25 GMT

Hi @Anonymous，

I might probably miss the context. if editing task, it is straightforward. The only trick is to copy a task, edit the copy and set back. e.g.

         Document doc = Nw.Application.ActiveDocument; 
            DocumentTimeliner doc_timeliner = doc.GetTimeliner();
            TimelinerTask oTask = doc_timeliner.Tasks[0] as TimelinerTask;
            TimelinerTask oTaskCopy = oTask.CreateCopy();
            oTaskCopy.DisplayName = "new-" + oTaskCopy.DisplayName;
            doc_timeliner.TaskEdit(0, oTaskCopy);

And I suggest you take a look at the SDK sample @Anonymous mentioned. And also the blogs on https://adndevblog.typepad.com, though some contents might be out of date.

Re: edit and/or delete a task

Anonymous — Thu, 01 Nov 2018 15:33:22 GMT

thanks @xiaodongliang for answering,

I have tried our code, but I get "null" in oTask. Please see the picture attached.

Both the SDK sample that @Anonymous mentioned and the blogs https://adndevblog.typepad.com/aec/2012/10/timeliner-api-part2.html are different method, they use the *csv file as export and import. My purpose is to replace the task direcly in Navisworks: delete the task and put it the new one.

Re: edit and/or delete a task

Anonymous — Mon, 05 Nov 2018 16:33:38 GMT

Hello Mr. @xiaodongliang

I happen to have the same issue as @Anonymous. The only difference is that I want to edit the Children Tasks from a Task.

The code you shared worked perfectly for a normal task, but when I edit the Children Tasks in oTaskCopy, the changes are not reflected in the Timeliner. Here is the code:

 for (int iPosition = 0; iPosition < 1; iPosition++)
            {
               //Declaration of variables
                TimelinerTask oTask = StartForm.doc_timeliner.Tasks[0] as TimelinerTask;       //Gets the checked task
                TimelinerTask oTaskCopy = oTask.CreateCopy();       //Creates a copy of the selected task
                TimelinerTask taskToInsert = oTask.CreateCopyWithoutChildren();

                //Modifications to the task that is doing to be inserted as a ChildrenTask
                taskToInsert.DisplayName = "Example1";
                taskToInsert.EquipmentCost = Convert.ToDouble(StartForm.taskList[1].taskCost);

                //Modification to the task that is going to be inserted as a normal Task
                oTaskCopy.DisplayName = StartForm.taskList[1].taskName;
                DateTime.TryParse(StartForm.taskList[1].EndDate, out hola);
                oTaskCopy.ActualEndDate = hola;
                oTaskCopy.LaborCost = Convert.ToDouble(StartForm.taskList[1].taskCost);

                //Methods of editing the Timeliner
                oTaskCopy.Children.Remove(oTaskCopy.Children[1]);
                //oTaskCopy.Children.Insert(1, taskToInsert);
                StartForm.doc_timeliner.TaskEdit(0, oTaskCopy);
         }

oTaskCopy has the modifications for the normal Task

taskToInsert has the modifications of the ChildrenTasks

When I debug the oTaskCopy.Children[1] it appears to me that the children task in position 1 was removed, but when I use the TaskEdit method in the Timeliner, the modifications in the big task happen like they should, but the children tasks stay exactly the way they were.

Another thing is that, when I uncomment the line:

//oTaskCopy.Children.Insert(1, taskToInsert);

I receive an error that says: " Cannot evaluate expression because the code of the current method is optimized"

I already looked into the blogs and did the solutions they shared, but the error is still there.

So, just to clarify the question.

How can I manipulate the Children Tasks like the code shared in the previous comment does with the normal tasks?

What is going on with the "method is optimized" issue?

Best regards,

Javier

Re: edit and/or delete a task

xiaodong_liang — Fri, 23 Nov 2018 09:46:34 GMT

@Anonymous,

sorry, I was not able to get back timely. To delete/add/move the child task, the corresponding API is Timeliner.TaskRemoveAt, Timeliner.TaskAddCopy, Timeliner.TaskMove. While the trick is to use the original task as the parent (Group Item), instead of copy. The Copy is mainly for the scenario when you want to edit the properties of a original task. Similarly, when you want to edit a child task, you will need to make copy of child task, while use original parent task as the group item in TaskEdit.

The code below explains.

DocumentTimeliner doc_timeliner = doc.GetTimeliner();

TimelinerTask oParentTask = doc_timeliner.Tasks[0] as TimelinerTask; 

//to delete a child task, call TaskRemoveAt with the source task object
if (oTask.Children.Count > 0) 
   //try to delete the first child task 
   doc_timeliner.TaskRemoveAt(oParentTask, 1); 

//if edit the properties of parent task
TimelinerTask oParentTaskCopy = oTask.CreateCopy();
oParentTaskCopy.DisplayName = "new-" + oParentTaskCopy.DisplayName;
doc_timeliner.TaskEdit(0, oParentTaskCopy);

//if edit the properties of child task
TimelinerTask oChildTask = oParentTask.Children[0] as TimelinerTask; 
TimelinerTask oChildCopyTask = oChildTask.CreateCopy(); 
oChildCopyTask.DisplayName = "new-" + oChildCopyTask.DisplayName; 
doc_timeliner.TaskEdit(oParentTask, 0, oChildCopyTask);