/// <summary>
        /// Adds the description handler.
        /// </summary>
        /// <param name="sender">The sender.</param>
        /// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
        private void AddDescriptionHandler(object sender, EventArgs e)
        {
            TaskDescription selectedTask = AppContext.Current.ShowDescriptionExplorer();

            if (selectedTask.IsNotEmpty())
            {
                _data.AddPinnedTaskDescription(selectedTask);
                ShowTaskDescriptions();
            }
        }