public void SetWorkItemFixed(int workItemId, int changeSetId)
        {
            var projectName = (string)RequestCache.Items["projectName"];

            if (string.IsNullOrEmpty(projectName))
            {
                return;
            }

            var credentials = (NetworkCredential)RequestCache.Items["credentials"];

            if (credentials == null)
            {
                return;
            }

            if (projectName.StartsWith("/"))
            {
                projectName = projectName.Substring(1);
            }

            workItemService.Credentials = CredentialsHelper.DefaultCredentials;
            workItemService.MarkWorkItemAsFixed(projectName, credentials.UserName, workItemId, changeSetId);
        }