using System;

using System.Collections.Generic;

using Microsoft.TeamFoundation.Client;

using Microsoft.TeamFoundation.WorkItemTracking.Client;

​

public class Program

{

    public static void Main()

    {

        TfsTeamProjectCollection tpc = new TfsTeamProjectCollection(new Uri("http://yourserver:8080/tfs/YourCollection"));

        WorkItemStore workItemStore = tpc.GetService<WorkItemStore>();

        Project teamProject = workItemStore.Projects["YOURPROJECT"];

        WorkItemType workItemType = teamProject.WorkItemTypes["User Story"];

        var workItems = new List<WorkItem>();

        for (int i = 0; i < 70001; i++)

        {

            WorkItem workItem = new WorkItem(workItemType)

            {

            // The title is generally the only required field that doesn’t have a default value. 

            // You must set it, or you can’t save the work item. If you’re working with another

            // type of work item, there may be other fields that you’ll have to set.

            Title = "Dummy"

            }

​

            ;

            workItems.Add(workItem);

        }

​

        var errors = workItemStore.BatchSave(workItems.ToArray());

    // See https://msdn.microsoft.com/en-us/library/bb130322(v=vs.120).aspx

    // See https://msdn.microsoft.com/en-us/library/bb140385(v=vs.120).aspx

    }

}