发布一个原创的基于Ajax的通用(组合)查询(续)

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>

</script>

</HEAD>

<TABLE id="Table1" style="Z-INDEX: 101; LEFT: 0px; POSITION: absolute; TOP: 0px" cellSpacing="0"

cellPadding="0" width="100%" border="0">

<TR>

</TD>

</TR>

<TR>

</TABLE>

</TD>

</TR>

<TR>

</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

posted @ 2005-10-19 23:00 冰戈阅读(5845) 评论(15) 编辑收藏举报

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