YYControls/SmartGridView/SmartSorting/SmartSortingFunction.cs

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using System;
using System.Collections.Generic;
using System.Text;

using System.Web.UI.WebControls;
using System.Web.UI;

namespace YYControls.SmartGridViewFunction
{
    /// <summary>
    /// 扩展功能：复合排序和排序状态提示
    /// </summary>
    public class SmartSortingFunction : ExtendFunction
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        public SmartSortingFunction()
            : base()
        {

        }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="sgv">SmartGridView对象</param>
        public SmartSortingFunction(SmartGridView sgv)
            : base(sgv)
        {

        }

        /// <summary>
        /// 扩展功能的实现
        /// </summary>
        protected override void Execute()
        {
            // 开启SmartGridView的排序功能
            // this._sgv.AllowSorting = true;

            this._sgv.Sorting += new System.Web.UI.WebControls.GridViewSortEventHandler(_sgv_Sorting);
            this._sgv.RowDataBoundCell += new SmartGridView.RowDataBoundCellHandler(_sgv_RowDataBoundCell);
        }

        /// <summary>
        /// SmartGridView的RowDataBoundCell事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="gvtc"></param>
        void _sgv_RowDataBoundCell(object sender, GridViewTableCell gvtc)
        {
            if (!String.IsNullOrEmpty(this._sgv.SortExpression) 
                && this._sgv.SmartSorting.AllowSortTip
                && gvtc.RowType == DataControlRowType.Header)
            {
                // 显示排序状态提示
                DisplaySortTip(this._sgv.SortExpression, gvtc.TableCell);
            }
        }