/// <summary>
        /// 表头选择框初始化回调函数
        /// </summary>
        /// <param name="component"></param>
        protected void OnItemCheckboxInit(BootstrapComponentBase component)
        {
            if (ItemCheckboxs == null)
            {
                ItemCheckboxs = new List <CheckboxBase <TItem> >();
            }

            ItemCheckboxs.Add((CheckboxBase <TItem>)component);
        }
 /// <summary>
 /// 行内选择框初始化回调函数
 /// </summary>
 /// <param name="component"></param>
 protected void OnCheckboxInit(BootstrapComponentBase component)
 {
     HeaderCheckbox = (CheckboxBase <bool>)component;
 }