知识大全模仿combox(select)控件省去美化烦恼

Posted 2022-07-21 知

篇首语：知识是珍贵宝石的结晶，文化是宝石放出的光泽。本文由小常识网(cha138.com)小编为大家整理，主要介绍了知识大全模仿combox(select)控件省去美化烦恼相关的知识，希望对你有一定的参考价值。

不用整天为美化select控件烦恼了

　　可批量美化select控件

　　可以有onchange句柄

　　触发onchange的函数可带参数

　　可以得到select的值

　　可设置像select类似的滚动条(如大于或等于个数目时出现滚动条)

　　可设置宽度和高度

　　API参考

　　//首先生成一个simulateSelect的实例

　　//构造函数的第一个可选参数为触发onchange的函数其它的为onchange函数的参数;

　　c = new simulateSelect(s onchange never online );

　　//设置select的CSS 第一个参数为控件的主要CSS 第二个为选中条目时的CSS 第三个为没有选中条目时的CSS

　　c style( CtlSelect selected unselected );

　　//设置select的宽度和高度;

　　c width = ;

　　c height = ;

　　//初始化参数为 select控件的ID 可以用逗号分离进行批量转换;

　　c init( s s s );

　　下一版本将可修改box

　　<!DOCTYPE HTML PUBLIC //W C//DTD HTML Transitional//EN ><HTML><HEAD><TITLE> simulate box control </TITLE><META NAME= Generator CONTENT= EditPlus ><META NAME= Author CONTENT= ><META NAME= Keywords CONTENT= ><META NAME= Description CONTENT= ><style>body input font family: verdana; font size: pt;h font family: tahoma; font size: pt; text align: left;pre font size: pt; font family: verdana; border: px solid # ; width: px; padding: px; background: #ffffff; color: # ; CtlSelect border: px solid # ; font family: verdana; height: px; color: # ; background: #ffffff; /*background:url(E D BA A DB A jpg);*/ selected background: # ; color: #ffffff; height: px; unselected height: px; color: # ; line height: %; border bottom: px solid # ; CtlSelect border: px solid # ; font family: verdana; height: px; color: # ; background: #ffffff; /*background:url(E D BA A DB A jpg);*/ selected background: # ; color: #ffffff; height: px; unselected height: px; color: # ; line height: %; border bottom: px solid # ; CtlSelect border: px solid # ; font family: verdana; height: px; color: # ; background: #ffffff; /*background:url(E D BA A DB A jpg);*/ selected background: # ; color: #ffffff; height: px; unselected height: px; color: # ; line height: %; border bottom: px solid # ; margin-top: 10px; font-size: 9pt; text-align: center; color: #333; font-weight: bold;</style></HEAD>

<BODY><SCRIPT LANGUAGE="JavaScript"><!--//-------------------------------------------------------------// @ Module: simulate select control, IE only.// @ Debug in: IE 6.0// @ Script by: blueDestiny, never-online// @ Updated: 2006-3-22// @ Version: 1.0 apha// @ Email: blueDestiny [at] // @ Website: // @ Please Hold this item please.//// API// @ class: simulateSelect()//// @ object.style(ctlStyle[,selStyle][,unselStyle])// ctlStyle: main control box css class name// selStyle: when mouseover or option focus css class name// unselStyle: options blur\'s css class name//// @ object.width=(widthPX)// widthPX must be a digit number.//// @ object.height=(heightPX)// heightPX must be a digit number.//// @ object.getValue(ctlSelID)// ctlSelID is the unique select control ID//// -------------- for the next Version ----------// @ object.readOnly = (blnReadOnly)// blnReadOnly must be a boolean type or a number type.// @ object.addEvent(w, h)// w: fire handler\'s event.// h: handler function.//-------------------------------------------------------------

　　function $(objID) return document.getElementById(objID);;function Offset(e) var t = e.offsetTop; var l = e.offsetLeft; var w = e.offsetWidth; var h = e.offsetHeight-2;

　　while(e=e.offsetParent) t+=e.offsetTop; l+=e.offsetLeft; return top : t, left : l, width : w, height : h //-----------------------------------------------

function simulateSelect(handlerFunction) with(this) this.IDs = []; this.name = this; this.value = null; this.onchangeArgs = []; this.onchange = handlerFunction; this.height = 20; this.width = null; this.number = null; this.ctlStyle = "CtlSelect"; this.selStyle = "selected"; this.unselStyle = "unselected"; this.elementPrefix = "e__"; this.inputPrefix = "i__"; ntainerPrefix = "c__"; this.buttonPrefix = "b__"; // property for beta Version // can editable box this.readonly = true; if( arguments.length>0 ) for(var i=0; i<arguments.length; i++) onchangeArgs[i-1] = arguments[i]; return this;;simulateSelect.prototype.init = function(ctlSelIDs) with(this) eval(name).append(ctlSelIDs); eval(name).simulates();;

　　simulateSelect.prototype.style = function() with(this) ctlStyle = arguments[0]; selStyle = arguments[1]; unselStyle = arguments[2];;//-----------------------------------------------simulateSelect.prototype.append = function(ctlSelIDs) with(this) if( ctlSelIDs.indexOf(",")>0 ) var arrCtlSel = ctlSelIDs.split(","); for(var i=0; i<arrCtlSel.length; i++) IDs.push(arrCtlSel[i]); else IDs.push(ctlSelIDs);;simulateSelect.prototype.checkupOnMouseDown = function(e) with(this) // here patible mf. var el = e ? e.srcElement : e.target; if( el.id.indexOf(elementPrefix)>-1 || el.id.indexOf(inputPrefix)>-1 || el.id.indexOf(containerPrefix)>-1 || el.id.indexOf(buttonPrefix)>-1 ) return; else for(var i=0; i<eval(name).IDs.length; i++) if( $(containerPrefix + IDs[i]) ) $(containerPrefix + IDs[i]).style.display = "none";

　　;simulateSelect.prototype.simulates = function() with(this) for(var i=0; i<IDs.length; i++) eval(name).simulate(IDs[i]);;simulateSelect.prototype.simulate = function(ctlSelID) with (this) var input; var button; var object; var offset;

　　object = $(ctlSelID); offset = Offset(object); input = document.createElement("INPUT"); button = document.createElement("BUTTON"); button.setAttribute("id", buttonPrefix + ctlSelID); //button.value = "⊿"; button.value = "6"; button.style.fontFamily = "Webdings, Marlett"; button.style.background = ""; button.onclick = input.onclick = function() this.blur(); eval(name).expand(ctlSelID, offset); ; input.onselectstart = function() eval(name).expand(ctlSelID, offset); event.returnValue = false; ;

　　input.setAttribute("id", inputPrefix + ctlSelID); input.title = button.title = "click expand options"; input.style.cursor = button.style.cursor = "default"; input.className = button.className = ctlStyle; input.style.width = (width>0 ? width : object.offsetWidth); height ? input.style.height=button.style.height=height : ""; input.value = value = object[0].text; if( readonly==true ) input.readOnly=true;

　　// this method is only IE. object.insertAdjacentElement("afterEnd",button); object.insertAdjacentElement("afterEnd",input); object.style.display = \'none\';;simulateSelect.prototype.expand = function(ctlSelID, offset) with(this) var div; var object = $(ctlSelID);

　　if( !$(containerPrefix + ctlSelID) ) div = document.createElement("DIV"); div.style.position = "absolute"; div.style.display = "block"; div.setAttribute("id", containerPrefix + ctlSelID); div.className = ctlStyle; div.style.left = offset.left; div.style.top = offset.top + offset.height; div.style.width = (width ? width : offset.width) + 20; if( number ) div.style.height = height * number; div.style.overflow = "auto"; document.body.appendChild(div);

　　for(var i=0; i<object.length; i++) div = document.createElement("DIV"); div.setAttribute("id", div.id = elementPrefix + ctlSelID + i); div.style.cursor = "default";

　　if( object[i].text==$(inputPrefix + ctlSelID).value ) div.className = selStyle; else div.className = unselStyle;

　　div.innerText = div.title = object[i].text; div.style.height = height; div.setAttribute("value", object[i].value);

　　div.onmouseover = function() for(var j=0; j<$(containerPrefix + ctlSelID).childNodes.length; j++) if($(containerPrefix + ctlSelID).childNodes[j]==this) $(containerPrefix + ctlSelID).childNodes[j].className = selStyle; else $(containerPrefix + ctlSelID).childNodes[j].className = unselStyle; ; div.onclick = function() $(inputPrefix + ctlSelID).value = this.innerText; $(containerPrefix + ctlSelID).style.display = "none"; if( onchange && value!=$(inputPrefix + ctlSelID).value ) onchange.apply(this,onchangeArgs); value = $(inputPrefix + ctlSelID).value; ; $(containerPrefix + ctlSelID).appendChild(div); return;

　　if( $(containerPrefix + ctlSelID).style.display=="none" ) for(var i=0; i<object.length; i++) if( object[i].text==$(inputPrefix + ctlSelID).value ) $(elementPrefix + ctlSelID + i).className = selStyle; else $(elementPrefix + ctlSelID + i).className = unselStyle; $(containerPrefix + ctlSelID).style.display="block"; return;

　　if( $(containerPrefix + ctlSelID).style.display=="block" ) $(containerPrefix + ctlSelID).style.display="none"; return; ;simulateSelect.prototype.getValue = function(ctlSelID) with(this) if( $(inputPrefix + ctlSelID) ) return $(inputPrefix + ctlSelID).value; else return null;;simulateSelect.prototype.addEvent = function(w, h) with(this);//-----------------------------------------------//window.onerror = Function("return true;");// IE only.document.attachEvent("onmousedown", function() a.checkupOnMouseDown(event); b.checkupOnMouseDown(event); c.checkupOnMouseDown(event));window.attachEvent("onload", function() window.a = new simulateSelect(); a.style("CtlSelect", "selected", "unselected"); a.init("s1"); //------------------------------------------- window.b = new simulateSelect(); b.style("CtlSelect1", "selected1", "unselected1"); b.width = 300; b.number = 9; b.init("s2"); //------------------------------------------- window.c = new simulateSelect(s1onchange, "never-online", a.getValue(\'s1\')); c.style("CtlSelect2", "selected2", "unselected2"); c.width = 320; c.init("s3"););function s1onchange(para, s) alert("onchage handler fire " + para + s);//--></SCRIPT><h1> simulate box control </h1><h4> demonstrate </h4>

　　<p>normal select: <select id="s0"><option value="- please select your options -"> - please select your options -</option><option value="1">option1</option><option value="2">option2</option><option value="3">option3</option><option value="4">option4</option><option value="5">option5</option></select></p>

　　<p>simulate select: <select id="s1"><option value="- please select your options -"> - please select your options -</option><option value="1">1option1</option><option value="2">1option2</option><option value="3">1option3</option><option value="4">1option4</option><option value="5">1option5</option></select></p>

　　<p>scroll simulate select: <select id="s2"><option value="- please select your options -"> - please select your options -</option><option value="1">2option1</option><option value="2">2option2</option><option value="3">2option3</option><option value="4">2option4</option><option value="5">2option6</option><option value="5">2option7</option><option value="5">2option8</option><option value="5">2option9</option><option value="5">2option10</option><option value="5">2option11</option><option value="5">2option12</option><option value="5">2option13</option><option value="5">2option14</option></select></p>

　　<p>onchange handler fire: <select id="s3"><option value="- please select your options -"> - please select your options -</option><option value="1">3option1</option><option value="2">3option2</option><option value="3">3option3</option><option value="4">3option4</option><option value="5">3option5</option></select></p>

　　<button onclick="alert(a.getValue(\'s1\') + \'\\n\\n\' + b.getValue(\'s2\') + \'\\n\\n\' + c.getValue(\'s3\'))" > Get value </button><button onclick="alert(\'next version\')" >append item</button><button onclick="alert(\'next version\')" >remove item</button>

　　<h4> description </h4><pre>//-------------------------------------------------------------// @ Module: simulate select control, IE only.// @ Debug in: IE 6.0// @ Script by: blueDestiny, never-online// @ Updated: 2006-3-22// @ Version: 1.0 apha// @ Email: blueDestiny [at] // @ Website: // @ Please Hold this item please.//// API// @ class: simulateSelect()//// @ object.style(ctlStyle[,selStyle][,unselStyle])// ctlStyle: main control box css class name// selStyle: when mouseover or option focus css class name// unselStyle: options blur\'s css class name//// @ object.width=(widthPX)// widthPX must be a digit number.//// @ object.height=(heightPX)// heightPX must be a digit number.//// @ object.getValue(ctlSelID)// ctlSelID is the unique select control ID//// -------------- for the next Version ----------// @ object.readOnly = (blnReadOnly)// blnReadOnly must be a boolean type or a number type.// @ object.addEvent(w, h)// w: fire handler\'s event.// h: handler function.//-------------------------------------------------------------</pre>

cha138/Article/program/Java/JSP/201311/19154

知识大全 模仿combox(select)控件省去美化烦恼

知识大全模仿combox(select)控件省去美化烦恼