ClientScript.GetCallbackEventReference实现局部刷新

使用ClientScript.GetCallbackEventReference实现局部刷新是.NET支持的一种前后台代码调用的方式；其实实现局部刷新这样方式有很多种，最经典也常用的莫过于jQuery封装好的异步调用方法（ajax, get, getJSON, post），这里就不去多加比较，毕竟都会接触到。

下面是简单的例子：

页面前台关键代码：

 //删除投诉信息

 function f_DeleteComplaint() {

     var currentKey = gridManager.GetSelectRowKeyValue();

     if (currentKey != null) {

         if (confirm('<%=Strings.GetString("Sdelete")%>')) {

             var deleteInfo = "Complaint" + deleteSign + currentKey;

             <%=ClientScript.GetCallbackEventReference(this, "deleteInfo", "refresh", "")%>;

         }

     }

     else {

         alert('<%=Strings.GetString("S1044") %>！');

     }

 }

 function refresh(val) {

     switch(val.toLowerCase()){

         case "complaint":

             gridManager.Refresh(0);

             break;

     }

 }

页面后台关键代码：

using System;

using System.Collections.Generic;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class PSWholeSale_PSWholeSaleEdit : System.Web.UI.Page, ICallbackEventHandler

{

    public string returnValue = "ok";

    protected char deleteSign = '|';

    #region ICallbackEventHandler 成员

    public string GetCallbackResult()

    {

        return returnValue;

    }

    public void RaiseCallbackEvent(string deleteInfo)

    {

        string[] deleteInfoArr = deleteInfo.Split(deleteSign);

        if (deleteInfoArr.Length > )

        {

            string sql = "";

            returnValue = deleteInfoArr[];

            switch (deleteInfoArr[].ToLower())

            {

                case "complaint":

                    sql = "update PS_Complaint set RecordStatus='Inactive' where ComplaintID=@id";

                    break;

            }

            if (!string.IsNullOrEmpty(sql))

            {

                DataAccessHelper.ExecuteNonQuery(sql, new DbParameterHelper("id", DbType.Int32, deleteInfoArr[]));

            }

        }

    }

    #endregion

}