网络编程 | 站长之家 | 网页制作 | 图形图象 | 操作系统 | 冲浪宝典 | 软件教学 | 网络办公 | 邮件系统 | 网络安全 | 认证考试 | 系统进程
Firefox | IE | Maxthon | 迅雷 | 电驴 | BitComet | FlashGet | QQ | QQ空间 | Vista | 输入法 | Ghost | Word | Excel | wps | Powerpoint
asp | .net | php | jsp | Sql | c# | Ajax | xml | Dreamweaver | FrontPages | Javascript | css | photoshop | fireworks | Flash | Cad | Discuz!
当前位置 > 网站建设学院 > 网页制作 > Javascript
网页制作:Dreamweaver教程,FrontPages教程,Javascript教程,HTML教程,CSS教程,心得技巧,DHTML教程,网页特效,Discuz!论坛
本月文章推荐
.一段貌似简单的JavaScript.
.用 JavaScript 迁移目录.
.重新载入javascript文件的方法(给.
.javascript应用:实现复选框全选.
.JScript中值类型的封箱与拆箱.
.JavaScript的document和window对.
.JavaScript Cookie操作 笔记.
.JS代码的格式化和压缩.
.Javascript脚本:Location对象.
.js变量作用域及可访问性的探讨.
.javaScript事件使用方法.
.Javascript实例教程(20) OLE Aut.
.JAVASCRIPT加密解密终级指南.
.JavaScript对象与数组参考大全.
.现有的Web打印控制技术分成几种方.
.JavaScript拖放效果分析.
.经典正则表达式 (收藏整理).
.一组常用的弹出窗口用法总结.
.Javascript代码混淆综合解决方案.
.javaScript实现checkbox多项选择.

实现textarea内字符串选择查询替换功能

发表日期:2005-11-6


----------自动替换版----------


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var staus ;
var oRange;
var objTimer;
var objTimer1;
var objTimer2;
var sBookMark;
<!--
function selectall(objAll,OBJSingle){
alert(objAll.checked);
for (var i=0;i<OBJSingle.length;i++){
if (objAll.checked){
for( objs in OBJSingle){
alert(objs.value);
objs.checked=true;
}
}
else{
OBJSingle.checked=false;
}
}
}

function fnSearch() {
fm1.txtarea1.focus();
oRange = fm1.txtarea1.createTextRange();
searchtxt(1);
}

function searchtxt(n){
var v1;
var v2;
var txtr;
var blnS;

window.clearInterval(objTimer1);
window.clearInterval(objTimer2);

v1 = fm1.txtarea1.value;
v2 = fm1.txtarea2.value;
v3 = fm1.txtarea3.value;

if( n == 1) {
if (oRange != null) {
oRange.findText(v2);
if  (oRange.findText(v2) == true){
//sBookMark = oRange.getBookmark();
oRange.select();
oRange.scrollIntoView();
objTimer2 = window.setInterval("searchtxt(2)",1000);
}
else{
objTimer = window.setInterval("searchtxt(3)",1000);
}
}
staus = 2 ;
}
else if(n==2)  {
oRange.text = v3;
staus = 1;
objTimer1 = window.setInterval("searchtxt(1)",1000);
}
else if(n==3) {
staus = 3 ;
window.clearInterval(objTimer);
window.clearInterval(objTimer1);
window.clearInterval(objTimer2);
}
}
//-->
</SCRIPT>
</HEAD>
<BODY>
<FORM METHOD=POST name="fm1">
<TEXTAREA NAME="txtarea1" ROWS="20" COLS="50">
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
</TEXTAREA>
<TEXTAREA NAME="txtarea2" ROWS="20" COLS="50"> will be </TEXTAREA>
<TEXTAREA NAME="txtarea3" ROWS="20" COLS="50"> has been </TEXTAREA>
<input type="button" value="search" onclick="fnSearch()">
</FORM>

</BODY>
</HTML>

--------------------------------手动改进版----------------------------------------

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var oRange;     // save the current textrange 
var intCount = 0;   // this pos of current textrange in the total count
var intTotalCount = 0;  // total count
<!--
//==============================================
//function : fnSearch()
//comment  : Search the text
//param    : none
//return   : none
//author   : Fantiny
//Date     : 10/21/2005
//==============================================
function fnSearch() {

 var strBeReplaced;
 var strReplace;

 strBeReplaced = fm1.txtarea2.value;
 strReplace = fm1.txtarea3.value;

 fnNext();

 fm1.txtarea1.focus();
 oRange = fm1.txtarea1.createTextRange(); //Create a textRange for the Textarea

 
 // Find the text by findtext method
 for (i=1; oRange.findText(strBeReplaced)!=false; i++) {
  if(i==intCount){  
   oRange.select();   // select the finded text
   oRange.scrollIntoView(); // scroll the page and set the text Into View
   break;
  }
  oRange.collapse(false);   //
 }
}

//==============================================
//function : fnSearch()
//comment  : set the flag to the next textrange
//param    : none
//return   : none
//author   : Fantiny
//Date     : 10/21/2005
//==============================================
function fnNext(){

 if (intCount > 0 && intCount < intTotalCount){
  intCount = intCount + 1;
 }
 else{
  intCount = 1 ;
 }
}

//==============================================
//function : init()
//comment  : initialize at page onload to get the count
//param    : none
//return   : none
//author   : Fantiny
//Date     : 10/21/2005
//==============================================
function init(){

 var oRange ;
 var strBeRepalced;

 oRange = fm1.txtarea1.createTextRange();  //Create a textRange for the Textarea
 strBeReplaced = fm1.txtarea2.value;   

 for (i=0; oRange.findText(strBeReplaced)!=false; i++) {
     oRange.collapse(false);  // Moves the insertion point to the end of the text range.
 }

 intTotalCount = i ;

}

//==============================================
//function : fnReplace()
//comment  : replace the text of the selected textrange
//param    : none
//return   : none www.gaoqian.com
//author   : Fantiny
//Date     : 10/21/2005
//==============================================
function fnReplace(){

 var strReplace;
 
 strReplace = fm1.txtarea3.value;

 // if the textrange is exist, replace the text
 if(oRange!= null && typeof(oRange)=="object" && intTotalCount > 0){
  oRange.text = strReplace;
  intCount = intCount - 1;
  intTotalCount = intTotalCount - 1;
  oRange = null;
 }
}
//-->
</SCRIPT>
</HEAD>
<BODY onload="init()">
<FORM METHOD=POST name="fm1">
<TEXTAREA NAME="txtarea1" ROWS="20" COLS="50">
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
this is the original text, and this is the string will be repalced.
</TEXTAREA>
<TEXTAREA NAME="txtarea2" ROWS="20" COLS="50"> will be </TEXTAREA>
<TEXTAREA NAME="txtarea3" ROWS="20" COLS="50"> has been </TEXTAREA>
<input type="button" value="search" onclick="fnSearch()">
<input type="button" value="Replace" onclick="fnReplace()">
</FORM>

</BODY>
</HTML>

上一篇:JavaScript模拟ACDSEE简单功能 人气:12086
下一篇:JavaScript Web页面内容导出到Word、Excel 人气:29974
浏览全部javascript的内容 Dreamweaver插件下载 网页广告代码 祝你圣诞节快乐 2009年新年快乐