发布一个原创的基于Ajax的通用(组合)查询

简单介绍：
1.完全无刷实现，客户端主要实现生成条件选择或录入控件，并进行录入控制；

2.将字段信息存放于XML文件，便于数据移植

3.通过js脚本，ajax框架引擎获取字段信息

4.通过js脚本生成组合条件；
 
5.运行效果：

下面是代码和实现效果：
1.AjaxSeachMethod.cs

using  System;
using  System.Xml;
using  System.Data;
using  System.Data.SqlClient;

namespace  WebUI.AjaxSearchSystem
{
    /**//// <summary>
    /// SearchMethod 的摘要说明。
    /// </summary>
    public class AjaxSearchMethod
    {
        private string[] CHAR_OP    = new string[]{"等于|=","不等于|<>","相似于|Like","不相似于|Not Like"};
        private string[] NUM_OP        = new string[]{"大于|>","大于或等于|>=","等于|=","不等于|<>","小于|<","小于或等于|<="};    
        private string[] DATE_OP    = new string[]{"等于|=","不等于|<>","先于|<","后于|>"};    

        public AjaxSearchMethod()
        {}

        /**//// <summary>
        /// 根据表名获取包含的字段
        /// </summary>
        /// <param name="table">表名</param>
        /// <returns></returns>
        [AjaxPro.AjaxMethod]
        public string[] GetFields(string table)
        {
            string[] strArrFields = null;

            try
            {
                XmlDocument xd = LoadXml(@"\AjaxSearchDataCollection.xml");
                XmlElement    xe  =xd.DocumentElement;
                XmlNode        xn = xe.SelectSingleNode("descendant::Table[@value='"+table+"']");
                XmlNodeList xnl = xn.ChildNodes;
                int iLen = xnl.Count;
                strArrFields = new string[iLen];

                int iIndex = 0;

                foreach(XmlNode xnField in xnl)
                {
                    strArrFields[iIndex] = xnField.Attributes["Name"].InnerText + "|" + xnField.Attributes["Value"].InnerText;
                    iIndex ++;
                }
            }
            catch(Exception ee)
            {
                throw new ArgumentOutOfRangeException(@"AjaxSearchDataCollection.xml","/Table[@value='"+table+"']：指定的接点不存在，请重新定义XML文档！");
            }
            return strArrFields;
        }

        /**//// <summary>
        /// 根据字段获取对应的操作符列表
        /// </summary>
        /// <param name="field"></param>
        /// <returns></returns>
        [AjaxPro.AjaxMethod]
        public string[] GetOpts(string table,string field)
        {
            string strTypeofField = GetTypeofField(table,field);

            switch(strTypeofField)
            {
                case "char":
                    return CHAR_OP;
                    break;
                case "int":
                    if(GetEnumField(table,field)==null)
                    {
                        return NUM_OP;
                    }
                    else
                    {
                        return (new string[]{"是|=","不是|<>"});
                    }
                    
                    break;
                case "decimal":
                    return NUM_OP;
                    break;
                case "datetime":
                    return DATE_OP;
                    break;
                default:
                    return (new string[]{"等于|="});
                    break;
            }
        }

        /**//// <summary>
        /// 根据字段获取对应的可能存在的枚举值列表
        /// </summary>
        /// <param name="field"></param>
        /// <returns></returns>
        [AjaxPro.AjaxMethod]
        public string[] GetEnums(string table,string field)
        {
            string strTypeofField = GetTypeofField(table,field);
            string[] enums = GetEnumField(table,field);

            int iLen = enums==null?0:enums.Length;

            string[] result = new string[iLen+1];

            result[0] = strTypeofField;

            if (iLen == 0)
            {
                return result;
            }

            int iIndex = 1;

            foreach(string str in enums)
            {
                result[iIndex] = str;
                iIndex ++;
            }

            return result;

        }

        内部支持脚本#region 内部支持脚本
        //装载XML文档
        private XmlDocument LoadXml(string xmlPath)
        {
            XmlDocument xd = new XmlDocument();

            try
            {
                xd.Load(System.Web.HttpContext.Current.Request.PhysicalApplicationPath+xmlPath);
            }
            catch(XmlException ee)
            {
                throw new ArgumentOutOfRangeException(ee.Message,"读取条件编辑信息失败，请检查XML文档路径设置是否正确！");
            }

            return xd;
        }

        //获取字段的数据类型
        private string GetTypeofField(string table,string field)
        {
            string strTypeofField = string.Empty;
            try
            {
                XmlDocument xd = LoadXml(@"\\AjaxSearchDataCollection.xml");
                XmlElement    xe  =xd.DocumentElement;
                XmlNode        xn = xe.SelectSingleNode("descendant::Table[@value='"+table+"']");
                xn = xn.SelectSingleNode("descendant::Field[@Value='"+field+"']");
                
                strTypeofField = xn.Attributes["DataType"].InnerText;
                
            }
            catch(Exception ee)
            {
                throw new ArgumentOutOfRangeException(@"AjaxSearchDataCollection.xml","/Field[@Value='"+field+"']：指定的接点不存在，请重新定义XML文档！");
            }

            return strTypeofField.ToLower();
        }

        //获取字段的数据类型
        private string[] GetEnumField(string table,string field)
        {
            string strTypeofField = string.Empty;
            string strEnumSqlSyntax = string.Empty;
            string strTextField = string.Empty;
            string strValueField = string.Empty;

            try
            {
                XmlDocument xd = LoadXml(@"\AjaxSearchDataCollection.xml");
                XmlElement    xe  =xd.DocumentElement;
                XmlNode        xn = xe.SelectSingleNode("descendant::Table[@value='"+table+"']");
                xn = xn.SelectSingleNode("descendant::Field[@Value='"+field+"']");
                xn = xn.ChildNodes[0];

                if (xn == null)
                {
                    return null;
                }
                else
                {
                    strEnumSqlSyntax = xn.Attributes["SqlSyntax"]==null?"":xn.Attributes["SqlSyntax"].InnerText;
                    strTextField = xn.Attributes["TextField"]==null?"":xn.Attributes["TextField"].InnerText;
                    strValueField = xn.Attributes["ValueField"]==null?"":xn.Attributes["ValueField"].InnerText;
                }

                return GetEnumField(strEnumSqlSyntax,strTextField,strValueField);
            }
            catch(NullReferenceException ee)
            {
                throw new ArgumentOutOfRangeException(@"AjaxSearchDataCollection.xml","/Field[@Value='"+field+"']：指定的接点不存在，请重新定义XML文档！");
            }
        }

        private string[] GetEnumField(string sqlSyntax,string text,string value)
        {

            if (sqlSyntax.Length == 0 || text.Length==0 || value.Length==0)
            {
                return null;
            }

            DataSet ds = new DataSet();

            try
            {
                SqlConnection sc = new SqlConnection("server=OY-M;User ID=sa;Password=DBCs@%1+ZhLx;database=pubs;Connection Reset=FALSE;Connect Timeout=6");
                sc.Open();
                SqlCommand scmd = new SqlCommand(sqlSyntax,sc);
                SqlDataAdapter da = new SqlDataAdapter();
                da.SelectCommand = scmd;
                da.Fill(ds);
            }
            catch(SqlException ee)
            {
                throw ee;
            }

            DataTable dt = ds.Tables[0];

            if (dt == null)
            {
                return null;
            }

            DataRowCollection drc = dt.Rows;
            
            string[] enumFields = new string[drc.Count];
            int iIndex = 0;

            foreach(DataRow dr in drc)
            {
                enumFields[iIndex] = dr[text].ToString().Trim() +"|"+dr[value].ToString().Trim();
                iIndex ++;
            }

            return enumFields;
        }
        #endregion
    }
}

2.AjaxSearchDataCollection.xml 

<? xml version="1.0" encoding="utf-8"  ?>
< Fields >
     < Table  Name ="产品表"  value ="employee" >
         < Field  Name ="雇佣号"  Value ="emp_id"  DataType ="char" >
         </ Field >
         < Field  Name ="名字"  Value ="fname"  DataType ="char" >
             < Enum  SqlSyntax =""  TextField =""  ValueField ="" ></ Enum >
         </ Field >
         < Field  Name ="工作号"  Value ="job_id"  DataType ="int" >
             < Enum  SqlSyntax ="SELECT job_id,job_desc FROM jobs"  TextField ="job_desc"  ValueField ="job_id" ></ Enum >
         </ Field >
         < Field  Name ="工作**"  Value ="job_lvl"  DataType ="int" >
         </ Field >
         < Field  Name ="雇佣日期"  Value ="hire_date"  DataType ="datetime" >
         </ Field >
     </ Table >
</ Fields >

继续阅读

3.AjaxSearchClientScript.js

var  tbPanel             =   null ;         // 用于展示组合条件的表控件
var  tableName         =   null ;         // 记录查询的表
var  fieldsInfo         =   null ;         // 保存从服务端取得的对应表的字段信息
var  no                 =   0 ;         // 为防止出现重复id保存的计数器
// 添加条件编辑行

function  addTerm(tbPanelId)
{
    tbPanel = document.getElementById(tbPanelId);
    if(tableName == null) tableName = document.getElementById("transValue").value;
    
    // 添加一待填模板行
    var row    = tbPanel.insertRow();
    no++;
    row.id = "row"+no;
    
    //*****************************step 1:添加字段选择部分*****************************
    var cell            = row.insertCell();
    var fieldInputId    = "field"+row.id;
    var newElement        = document.createElement("<SELECT ID='"+fieldInputId+"' onchange='javascript:getOpts("+row.id+");getInput("+row.id+")'></SELECT>");
    
    cell.insertBefore(newElement);
    
    //取出字段信息,首次从服务端取得
    if(fieldsInfo == null)
    {
        fieldsInfo = WebUI.AjaxSearchSystem.AjaxSearchMethod.GetFields(tableName.toString()).value;
    }
    
    //分解字段信息，格式为“字段中文名|字段名”

    var fieldsInfoLen;
    var i,index;
    var fieldValue;
    
    fieldsInfoLen = fieldsInfo.length
    
    for(i=0;i<fieldsInfoLen;i++)
    {
        fieldValue = fieldsInfo[i];
        index = fieldValue.indexOf("|");
        newElement.options[newElement.options.length] = new Option(fieldValue.substring(0,index),fieldValue.substring(index+1,fieldValue.length));
    }
    
    //*****************************step 2:提取默认（首个）字段对应的运算符*************
    cell = row.insertCell();
    var optInputId = "opt" +row.id;
    newElement = document.createElement("<SELECT ID='"+optInputId+"' style='WIDTH: 88px'></SELECT>");
    cell.insertBefore(newElement);
    
    getOpts(row);
    
    //*****************************step 3:设置字段条件值的录入（选择）框***************
    getInput(row);
    
    //*****************************step 4:生成连接条件选择框***************************
    cell = row.insertCell();
    var relateInputId = "relate"+row.id;
    newElement = document.createElement("<SELECT ID='"+relateInputId+"'></SELECT>");
    cell.insertBefore(newElement);
    newElement.options[newElement.options.length] = new Option("并且","And");
    newElement.options[newElement.options.length] = new Option("或者","Or");
    
    //*****************************step 5:生成删除当前行按纽***************************
    cell = row.insertCell();
    var deleteBtnId = "delete"+row.id;
    newElement = document.createElement("<INPUT ID='"+deleteBtnId+"' type='Button' class='redButtonCss' value='删除' onclick='javascript:DelRow("+row.id+")'>");
    cell.insertBefore(newElement);
    
    //*****************************step 6:生成增加下一行按纽***************************
    cell = row.insertCell();
    var addBtnId = "add"+row.id;
    newElement = document.createElement("<INPUT ID='"+addBtnId+"' type='Button' class='redButtonCss' value='新增' onclick='javascript:addRow("+row.id+")'>");
    cell.insertBefore(newElement);
}

// 取得并设置运算符
function  getOpts(row)
{
    var rowId = row.id;
    
    var fieldSelId = "field"+rowId;
    var field = document.getElementById(fieldSelId);
    
    var elemID = "opt"+rowId;
    var element = document.getElementById(elemID);
    
    var optInfo = WebUI.AjaxSearchSystem.AjaxSearchMethod.GetOpts(tableName.toString(),field.value).value;
    var optValue;
    var j,index;

    //先移除原有项
    while (element.options.length > 0) 
    {    
        element.options.remove(element.options.length-1);
    }
    
    for(j=0;j<optInfo.length;j++)
    {
        optValue = optInfo[j];
        index = optValue.indexOf("|");
        element.options[element.options.length] = new Option(optValue.substring(0,index),optValue.substring(index+1,optValue.length));
    }
}

// 设置值录入控件,取得可能存在的枚举值

function  getInput(row)
{
    var rowId = row.id;
    
    var fieldSelId = "field"+rowId;
    var field = document.getElementById(fieldSelId);
    
    var inputId = "input"+rowId;
    var inputElement = document.getElementById(inputId);
    
    if (inputElement != null)
    {
        row.deleteCell(2);
    }
    
    //获取可能存在的枚举值

    var enums = WebUI.AjaxSearchSystem.AjaxSearchMethod.GetEnums(tableName.toString(),field.value).value;
    var oCell;
    
    if (enums.length <= 1)//不存在枚举值，使用text
    {
        var elementSyntax = "<INPUT ID='"+elemID+"' type='text' style='WIDTH: 144px'>";
        oCell = row.insertCell(2);
        var elemID = "input"+rowId;
        
        switch(enums[0])
        {
            case "int":
                elementSyntax = "<INPUT ID='"+elemID+"' type='text' style='WIDTH: 144px' onKeyPress='javascript:return controlNumberKeyPress(this)' onKeyUp='return controlNumberOnKeyUp(this)' onfocus='this.select()' style='TEXT-ALIGN:right' onpaste='return !clipboardData.getData(\"text\").match(/\D/);'>"
                break;
            case "decimal":
                elementSyntax = "<INPUT ID='"+elemID+"' type='text' style='WIDTH: 144px' onKeyPress='javascript:return controlMoneyKeyPress(this)' onKeyUp='return controlMoneyOnKeyUp(this,10,4)' onfocus='this.select()' style='TEXT-ALIGN:right' onpaste='return !clipboardData.getData(\"text\").match(/\D/);'>"
                break;
            case "datetime":
                elementSyntax = "<INPUT ID='"+elemID+"' type='text' style='WIDTH: 144px' onfocus='setday(this)'onkeypress='return false' onselectstart='return false;' readonly='true' onpaste='return false;' >"
                break;
            default:
                elementSyntax = "<INPUT ID='"+elemID+"' type='text' style='WIDTH: 144px'>"
                break;
        }
                
        var oNewItem = document.createElement(elementSyntax);
        oCell.insertBefore(oNewItem);
    }
    else //存在枚举值，使用select
    {
        oCell = row.insertCell(2);
        var elemID = "input"+rowId;
        var oNewItem = document.createElement("<SELECT ID='"+elemID+"' style='WIDTH: 144px'></SELECT>");
        oCell.insertBefore(oNewItem);
        
        var enumValue;
        var j,index;
        var element = document.getElementById(elemID);
        
        for(j=1;j<enums.length;j++)
        {
            enumValue = enums[j];
            index = enumValue.indexOf("|");
            element.options[element.options.length] = new Option(enumValue.substring(0,index),enumValue.substring(index+1,enumValue.length));
        }
    }
    
    //用于值的数据类型
    var fieldType= document.createElement("<INPUT id='type"+rowId+"'type='hidden'>");
    oCell.insertBefore(fieldType);
    document.getElementById("type"+rowId).value = enums[0];
}

// 删除当前行

function  DelRow(row)
{
    var rowOfIndex = row.rowIndex;
    
    if(tbPanel.rows.length == 1)
    {
        return
    }
    else if (rowOfIndex == tbPanel.rows.length-1)
    {
        //删除最后一行时，保持增加按纽在最后一行

        var cell = tbPanel.rows[rowOfIndex-1].insertCell();
        var addBtnId = "add"+tbPanel.rows[rowOfIndex-1].id;
        newElement = document.createElement("<INPUT ID='"+addBtnId+"' type='Button' class='redButtonCss' value='新增' onclick='javascript:addRow("+tbPanel.rows[rowOfIndex-1].id+")'>");
        cell.insertBefore(newElement);
    }
    
    tbPanel.deleteRow(rowOfIndex);
}

// 新增行

function  addRow(row)
{
    row.deleteCell(5);
    addTerm(tbPanel.id);
}

// 得到组合条件
function  getCombinTerm()
{
    var lenOfRows = tbPanel.rows.length;
    var i=0;
    var combinTerm = "";
    var field="",opt="",inputValue="",jointMode="",fieldType="";
    
    for(i=0;i<lenOfRows;i++)
    {
        field        = tbPanel.rows[i].cells[0].childNodes[0].value;
        opt            = tbPanel.rows[i].cells[1].childNodes[0].value;
        inputValue    = tbPanel.rows[i].cells[2].childNodes[0].value;
        
        //判断字段类型
        fieldType =tbPanel.rows[i].cells[2].childNodes[1].value;
        switch(fieldType)
        {
            case "char":
                if (inputValue == ""|| inputValue == null)
                {
                    if(opt.toLowerCase() == "like" || opt.toLowerCase() == "not like")
                    {
                        inputValue = "'%%'";
                    }
                    else
                    {
                        inputValue = "''";
                    }
                }
                else
                {
                    if(opt.toLowerCase() == "like" || opt.toLowerCase() == "not like")
                    {
                        inputValue = "'%"+inputValue+"%'"
                    }
                    else
                    {
                        inputValue = "'"+inputValue+"'"
                    }
                    
                }
                break;
            case "int":
                if (inputValue == ""|| inputValue == null) inputValue = 0;
                break;
            case "decimal":
                if (inputValue == ""|| inputValue == null) inputValue = 0;
                break;
            case "datetime":
                if (inputValue == ""|| inputValue == null)
                {
                    inputValue = "''";
                }
                else
                {
                    inputValue = "'"+inputValue+"'"
                }
                break;
            default:
                break;
        }
        
        //拼接条件
        combinTerm += " "+tableName+"."+field + " " + opt + " " + inputValue;
        
        if (i<lenOfRows-1)
        {
            jointMode    = tbPanel.rows[i].cells[3].childNodes[0].value;
            combinTerm += " " + jointMode
        }
    }
    
    document.getElementById("transValue").value = combinTerm;
    //return combinTerm;
}

//
var  oldValue  =   "" ;
var  MONEY_FLAG  =   "" ;
var  THOUSAND_FLAG  =   " , " ;

function  controlNumberKeyPress(textbox)
{
    oldValue = textbox.value.replace(MONEY_FLAG,'');
    
    return /\d/.test(String.fromCharCode(event.keyCode))||(textbox.value.indexOf('+')<0?String.fromCharCode(event.keyCode)=="+":false);
}

//
function  controlMoneyKeyPress(textbox)
{
    var val = textbox.value.replace(MONEY_FLAG,'');

    if(isNumber(event.keyCode))
    {
        return true;
    }
    
    if (textbox.value.indexOf('+') < 0)
    {
        if ( String.fromCharCode(event.keyCode)=="+" && val.length < 1)
            return true;
    }

    if ( textbox.value.indexOf('.') < 0)
    {
        if (String.fromCharCode(event.keyCode)==".")
            return true;
    }

    return false;
}

// 控制金额录入keyUp事件
function  controlNumberOnKeyUp(textbox)
{
    //处理"后退"键
    //alert(event.keyCode);
    if (event.keyCode == 8)
    {
        return true;
    }

    if (String.fromCharCode(event.keyCode) != '\t' && event.keyCode != 13)
    {
        if( !/\d/.test(String.fromCharCode(event.keyCode)) &&
            event.keyCode != 190/**//* 如果录入"."则不执行 */ )
        {
            //textbox.value = "";
            textbox.value = oldValue;
            oldValue = textbox.value;
            return false;
        }
    }
    
    return true;
}



// 控制金额录入keyUp事件
function  controlMoneyOnKeyUp(textbox, intBit , dotBit)
{
    //处理"后退"键

    if (event.keyCode == 8)
    {
        if (textbox.value.indexOf(MONEY_FLAG) < 0)
        {
            textbox.value = MONEY_FLAG + textbox.value;
        }
        return true;
    }

    if (String.fromCharCode(event.keyCode) != '\t' && event.keyCode != 13)
    {
        if( ! isNumber (event.keyCode) &&
            event.keyCode != 190/**//* 如果录入"."则不执行 */ )
        {
            //textbox.value = "";
            textbox.value = MONEY_FLAG + oldValue;
            oldValue = textbox.value.replace(MONEY_FLAG,"");
            return false;
        }

        textbox.value = MONEY_FLAG + textbox.value.replace(MONEY_FLAG,'');

        var val = textbox.value;
        var dotBehind = "";

        
        val = val.replace(MONEY_FLAG,'').replace(/\,/g,'');
        var iIndex = val.indexOf('.');
        if (iIndex > 0)
        {
            var valDot = val.substring(val.indexOf('.') + 1,val.length);
            if (iIndex > intBit)
            {
                val = val.substring(0,intBit);
            }
            
            if (valDot.length > dotBit)
            {
                textbox.value = addThousandFlag(val.substring(0,val.indexOf('.'))) + '.' + valDot.substring(0,dotBit);
                return;
            }

            dotBehind = val.substring(val.indexOf('.'),val.length);
            val = val.substring(0,val.indexOf('.'));
        }
        else if (val.length >= intBit)
        {
            if (val.length > intBit)
            {
                val = val.substring(0,intBit);
                val = addThousandFlag(val);
            }
            textbox.value = val + '.';
            return;
        }

        //val = noOtherInfoNumber;
        textbox.value = addThousandFlag(val) + dotBehind;
    }
}


// 添加千分位号
function  addThousandFlag(val)
{
    var strTemp = MONEY_FLAG;
    if (val.length < 4)
    {
        return MONEY_FLAG + val;
    }

    var flag = false;
    if (val.length % 3 != 0)
    {
        strTemp += val.substring(0,(val.length % 3));
    }
    else
        flag = true;

    for(var i = val.length; i > 0; i = i - 1)
    {
        if (i % 3 != 0)
        {
            continue;
        }
        
        if (flag)
        {
            strTemp += val.substring(val.length - i,val.length - i + 3);
            flag = false;
        }
        else
        {
            strTemp += THOUSAND_FLAG + val.substring(val.length - i,val.length - i + 3);
        }
    }

    if (strTemp.indexOf(MONEY_FLAG) > 0)
    {
        strTemp = MONEY_FLAG + strTemp.replace(/￥/g,'');
    }

    return strTemp;
}

// 判断是否是数字

function  isNumber(param)
{
    return /\d/.test(String.fromCharCode(param)) ||  (param >= 96 && param <= 105);//加上小键盘处理

}

4.AjaxSeachPage.aspx

<% @ Page language="c#" Codebehind="AjaxSeachPage.aspx.cs" AutoEventWireup="false" Inherits="WebUI.AjaxSearchSystem.AjaxSeachPage"  %>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"  >
< HTML >
     < HEAD >
         < title > 查询条件 </ title >
         < meta  content ="Microsoft Visual Studio .NET 7.1"  name ="GENERATOR" >
         < meta  content ="C#"  name ="CODE_LANGUAGE" >
         < meta  content ="JavaScript"  name ="vs_defaultClientScript" >
         < meta  content ="http://schemas.microsoft.com/intellisense/ie5"  name ="vs_targetSchema" >
         < base  target ="_self" >
         < LINK  href ="BasicStyle.css"  type ="text/css"  rel ="stylesheet" >
         < script  language ="javascript"  src ="AjaxSearchClientScript.js" >
         </ script >
         < script  language ="javascript"  src ="Calendar.js" ></ script >
     </ HEAD >
     < body  onload ="javascript:addTerm('tbPanel');"  MS_POSITIONING ="GridLayout" >
         < form  id ="Form1"  method ="post"  runat ="server" >
             < TABLE  id ="Table1"  style ="Z-INDEX: 101; LEFT: 0px; POSITION: absolute; TOP: 0px"  cellSpacing ="0"
                cellPadding ="0"  width ="100%"  border ="0" >
                 < TR >
                     < TD  style ="HEIGHT: 23px"  align ="center" >< asp:button  id ="btnOK"  runat ="server"  CssClass ="redButtonCss"  Text ="确定" ></ asp:button >< INPUT  class ="redButtonCss"  type ="button"  value ="取消"  onclick ="javascript:window.close();" >
                     </ TD >
                 </ TR >
                 < TR >
                     < TD  align ="center" >
                         < TABLE  id ="tbPanel"  cellSpacing ="0"  borderColorDark ="aliceblue"  cellPadding ="0"  border ="1" >
                         </ TABLE >
                     </ TD >
                 </ TR >
                 < TR >
                     < TD  align ="center" ></ TD >
                 </ TR >
             </ TABLE >
             < INPUT  id ="transValue"  style ="Z-INDEX: 102; LEFT: 8px; POSITION: absolute; TOP: 64px"  type ="hidden"
                name ="Hidden1"  runat ="server" >
         </ form >
     </ body >
</ HTML >

AjaxSeachPage.aspx.cs

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;

namespace WebUI.AjaxSearchSystem
{
    ///  < summary >
    /// AjaxSeachPage 的摘要说明。
    ///  </ summary >
    public class AjaxSeachPage : System.Web.UI.Page
    {
        protected System.Web.UI.HtmlControls.HtmlInputHidden transValue;
        protected System.Web.UI.WebControls.Button btnOK;
        public const string SEARCH_WHERE_SESSION = "SearchWhere";
    
        private void Page_Load(object sender, System.EventArgs e)
        {
            if (!IsPostBack)
            {
                try
                {
                    //tableName.Value = Request.QueryString["table"].Trim();
                    transValue.Value = "employee";
                }
                catch(NullReferenceException ee)
                {
                    throw new ArgumentOutOfRangeException("table","参数不正确，请传入预先定义的表名");
                }
            

                AjaxPro.Utility.RegisterTypeForAjax(typeof(AjaxSearchMethod));
            
                this.btnOK.Attributes.Add("OnClick","getCombinTerm()");
            }
        }

        #region Web 窗体设计器生成的代码
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
            //
            InitializeComponent();
            base.OnInit(e);
        }
        
        ///  < summary >
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        ///  </ summary >
        private void InitializeComponent()
        {    
            this.btnOK.Click += new System.EventHandler(this.btnOK_Click);
            this.Load += new System.EventHandler(this.Page_Load);

        }
        #endregion

        private void btnOK_Click(object sender, System.EventArgs e)
        {
            Session[SEARCH_WHERE_SESSION] = transValue.Value.Trim();

            Response.Write(ClosePage());
        }

        private string ClosePage()
        {
            StringBuilder js = new StringBuilder();
            js.Append(" < script  language =\"JavaScript\" > ");
            js.Append("window.close();");
            js.Append(" </ script > ");
            return js.ToString();
        }
    }
}

运行效果：

下载源码 AjaxGeneralSearch.rar
请大家提出宝贵意见，在此感谢我的同事 命运有自己的梦！提供的帮助！感谢日历控件提供者meizz