日期:2014-05-16 浏览次数:20462 次
【此脚本参考网络资源,谢谢无名分享作者】
1、脚本,把下面代码加到<head>与</head>之间
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<script type="text/javascript" language="javascript"> function PreviewImg(imgFile){ document.getElementById("idImg").style.display = "none";//隐藏初始化图片的显示,让过滤器显示 var newPreview=document.getElementById("newPreview"); remove(newPreview); var imgDiv=document.createElement("div"); document.body.appendChild(imgDiv); imgDiv.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)"; imgDiv.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src=imgFile.target.value; var img_object = document.getElementById("engineroom_layout_addr"); img_object.style.display = "inline"; img_object.src = addrObject.value; if (!img_object.width || img_object.width > 300) { imgDiv.style.width = "300px"; } if (!img_object.height || img_object.height > 200) { imgDiv.style.height = "200px"; } addrObject.style.display = "none"; //imgDiv.style.width="320px"; //imgDiv.style.height="127px"; newPreview.appendChild(imgDiv); } //使用removeChild从文档中删除DOM节点 function remove(obj) { var test = obj; var children = test.childNodes; for (i = 0; i < children.length; i++) { test.removeChild(children[i]); } } </script>
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2、在页面中添加DIV层来展示,IE9默认不显示预览,可参考title的说明设置
HTML页面代码:
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<div style="padding:5px;margin-left: -5px"> <table border="0" style="width:94%;border-collapse:collapse;background:#fff;" title="无显示帮助:第一步:工具-- Internet选项-- 安全-- 自定义级别;第二步:向下拖,一直看到“将文件上载到服务器时包含本地目录路径”;第三步:选择启用。"> <tr> <th style="background-color:#f0f0f0; height:20px;padding:5px;border:1px solid #ccc;font-weight: bolder;text-align: center;" width="40%">选择图片</th> <th style="background-color:#f0f0f0; height:20px;padding:5px;border:1px solid #ccc;font-weight: bolder;text-align: center;" width="70%">预览图</th> </tr> <tr> <td style="padding:5px;border:1px solid #ccc;"><INPUT id=engineroom_layout_addr class=inputbox name=engineroom_layout_addr/></td> <td align="center" style="padding:5px;border:1px solid #ccc;"><img id="idImg" style="display:none"/><div id="newPreview"></div></td> </tr> </table> <script type="text/javascript"> var addrObject = document.getElementById("engineroom_layout_addr"); addrObject.style.display = "none";//把机房显示输入框隐藏 Ext.get('file_engineroom_layout_addr').on('change',function(obj){ //crmsUtil.previewImg(obj.target,"idImg",300,200);//只适用于IE6 PreviewImg(obj); }); if(addrObject.value != ''){ var img_object = document.getElementById("idImg"); img_object.style.display = "inline"; img_object.src = addrObject.value; if (!img_object.width || img_object.width > 300) { img_object.width = 300; } if (!img_object.height || img_object.height > 200) { img_object.height = 200; } } </script> </div>