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jQuery实现select模糊查询（反射机制）
时间：2022-06-25 17:21:59 编辑：袖梨 来源：一聚教程网
通过如下代码就可以简单实现select带模糊查询的条件查询，具体如下jquery.select.js如下：
| 代码如下 | 复制代码 |
(function($) { $.selectSuggest =function(target, data, itemSelectFunction) { vardefaulOption = { suggestMaxHeight:'200px',//弹出框最大高度 itemColor :'#000000',//默认字体颜色 itemBackgroundColor:'RGB(199,237,204)',//默认背景颜色 itemOverColor :'#ffffff',//选中字体颜色 itemOverBackgroundColor :'#C9302C',//选中背景颜色 itemPadding : 3 ,//item间距 fontSize : 12 ,//默认字体大小 alwaysShowALL :true//点击input是否展示所有可选项 }; varmaxFontNumber = 0;//最大字数 varcurrentItem; varsuggestContainerId = target +"-suggest"; varsuggestContainerWidth = $('#'+ target).innerWidth(); varsuggestContainerLeft = $('#'+ target).offset().left; varsuggestContainerTop = $('#'+ target).offset().top + $('#'+ target).outerHeight(); varshowClickTextFunction =function() { $('#'+ target).val(this.innerText); currentItem =null; $('#'+ suggestContainerId).hide(); } varsuggestContainer; if($('#'+ suggestContainerId)[0]) { suggestContainer = $('#'+ suggestContainerId); suggestContainer.empty(); }else{ suggestContainer = $(' ');//创建一个子} suggestContainer.attr('id', suggestContainerId); suggestContainer.attr('tabindex','0'); suggestContainer.hide(); var_initItems =function(items) { suggestContainer.empty(); varitemHight=0; for(vari = 0; i < items.length; i++) { if(items[i].text.length > maxFontNumber){ maxFontNumber = items[i].text.length; } varsuggestItem = $(' ');//创建一个子suggestItem.attr('id', items[i].id); suggestItem.append(items[i].text); suggestItem.css({ 'padding':defaulOption.itemPadding +'px', 'white-space':'nowrap', 'cursor':'pointer', 'background-color': defaulOption.itemBackgroundColor, 'color': defaulOption.itemColor }); suggestItem.bind("mouseover", function() { $(this).css({ 'background-color': defaulOption.itemOverBackgroundColor, 'color': defaulOption.itemOverColor }); currentItem = $(this); }); suggestItem.bind("mouseout", function() { $(this).css({ 'background-color': defaulOption.itemBackgroundColor, 'color': defaulOption.itemColor }); currentItem =null; }); suggestItem.bind("click", showClickTextFunction); suggestItem.bind("click", itemSelectFunction); suggestItem.appendTo(suggestContainer); suggestContainer.appendTo(document.body); } } varinputChange =function() { varinputValue = $('#'+ target).val(); inputValue = inputValue.replace(/[-[]{}()*+?.,\^$|#s]/g, "\$&"); varmatcher =newRegExp(inputValue,"i"); return$.grep(data, function(value) { returnmatcher.test(value.text); }); } $('#'+ target).bind("keyup", function() { _initItems(inputChange()); }); $('#'+ target).bind("blur", function() { if(!$('#'+ suggestContainerId).is(":focus")){ $('#'+ suggestContainerId).hide(); if(currentItem) { currentItem.trigger("click"); } currentItem =null; return; } }); $('#'+ target).bind("click", function() { if(defaulOption.alwaysShowALL) { _initItems(data); }else{ _initItems(inputChange()); } $('#'+ suggestContainerId).removeAttr("style"); vartempWidth = defaulOption.fontSize*maxFontNumber + 2 * defaulOption.itemPadding + 30; varcontainerWidth = Math.max(tempWidth, suggestContainerWidth); varh =this.scrollHeight; $('#'+ suggestContainerId).css({ 'border':'1px solid #ccc', 'max-height':'100px', 'top': suggestContainerTop, 'left': suggestContainerLeft, 'width': containerWidth, 'position':'absolute', 'font-size': defaulOption.fontSize+'px', 'font-family':'Arial', 'z-index': 99999, 'background-color':'#FFFFFF', 'overflow-y':'auto', 'overflow-x':'hidden', 'white-space':'nowrap' }); $('#'+ suggestContainerId).show(); }); _initItems(data); $('#'+ suggestContainerId).bind("blur", function() { $('#'+ suggestContainerId).hide(); }); } })(jQuery); | |
html如下：
| 代码如下 | 复制代码 |
Hello, world!
.col-md-1
var datas =[{"id":"2","text":"中国石油"}, {"id":"4","text":"中国建筑"}, {"id":"3","text":"中国移动"}, {"id":"5","text":"中国工商银行"}, {"id":"7","text":"中国铁建"}, {"id":"8","text":"上海汽车集团"}, {"id":"9","text":"中国建设银行"}, {"id":"10","text":"联想集团"}]; var itemSelectFuntion = function(){ alert(this.id + "," + this.innerHTML); }; $.selectSuggest('testInput',datas,itemSelectFuntion);
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