Migrate test case along with steps and data from one TFS to another

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C#5.0

TFS

Hi,

I am trying to create a Win App where i can read test case from one project of one TFS and then move to another project in another TFS. I was able to implement the same but i want to migrate the test steps as well as the test data.

This is what i have written now

To show the test case in a datagrid

WorkItemStore workItemStore = new WorkItemStore(_TfsTeamProjectCollection);
                queryResults = workItemStore.Query(
                                               "Select [State], [Title] " +
                                               "From WorkItems " +
                                               "Where [Work Item Type] = 'Test Case' AND [Team Project]='" + _ProjectInfo.Name + "' " +
                                               "Order By [ID] Asc ");

                DataTable dtWorkItem = new DataTable();
                dtWorkItem.Columns.Add("Title", typeof(string));
                dtWorkItem.Columns.Add("State", typeof(string));
                dtWorkItem.Columns.Add("Created By", typeof(string));
                dtWorkItem.Columns.Add("Created On", typeof(string));
                foreach (WorkItem workItem in queryResults)
                {
                    dtWorkItem.Rows.Add(workItem.Title, workItem.State, workItem.CreatedBy, workItem.CreatedDate);
                }

                dsWorkitems.Tables.Add(dtWorkItem);

                if (dsWorkitems != null)
                {
                    testCaseGrid.DataSource = null;
                    testCaseGrid.DataSource = dsWorkitems.Tables[0];                    
                }

Then to Import data to the target tfs project

public void SaveWorkItem(WorkItemCollection workItemCollection)
        {
            try
            {
                int conflictCount = 0;
                Project _Project;
                WorkItemType _WorkItemType;
                WorkItem _WorkItem = null;
                WorkItemStore _WorkItemStore = new WorkItemStore(_TfsTeamProjectCollection);

                foreach (WorkItem workItem in workItemCollection)
                {                    

                    if (workItem.Id > 0)
                    {
                        _Project = _WorkItemStore.Projects[_ProjectInfo.Name];
                        _WorkItemType = _Project.WorkItemTypes["Test Case"];

                        _WorkItem = CheckWorkItemExist(_WorkItemStore, _WorkItemType, workItem.Title);

                        if (_WorkItem == null)
                        {
                            // Create the work item. 
                            _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 = workItem.Title,
                                Description = workItem.Description
                               
                            };

                            // Save the new user story. 
                            //_WorkItem.Save();
                        }
                        else
                        {
                            conflictCount++;
                            objLog.LogEvent("Test Case already exists. Work Item ID: " + workItem.Id + ". Work Item Title:" + workItem.Title);
                        }
                    }
                }

                if (conflictCount == 0)
                {
                    MessageBox.Show("All Work Items Imported Successfully", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    objLog.LogEvent("Imported Successfully!!!", "Information");
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }

Now i want to migrate the test steps as well as data. Can anyone please help me