private void UpdateArea_ButtonClick(object sender, EventArgs e)
        {
            if (this.selectArea == null)
            {
                return;
            }

            string areaName = "";

            using (MessageForm form = new MessageForm(""))
            {
                if (form.ShowDialog() == DialogResult.OK)
                {
                    areaName = form.InputText;
                }
            }
            if (areaName.Equals(""))
            {
                return;
            }

            int index = (int)this.selectArea.Tag;

            StructDictItem.Builder update = new StructDictItem.Builder(this.areas[index]);
            update.ItemList.Clear();
            update.AddItem(areaName);
            SystemManageNetOperation.UpdateArea(UpdateAreaResult, update.Build());
        }