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如何使用JS獲取IE上傳文件路徑(IE7,8)

更新時(shí)間：2013年07月08日 11:42:58 作者：

本篇文章是對(duì)使用JS獲取IE上傳文件路徑的實(shí)現(xiàn)代碼進(jìn)行了詳細(xì)的分析介紹，需要的朋友參考下

function validateFileSize(id, maxsize) {
            var btnsave = document.getElementById("Button2");
            btnsave.disabled = false;
            var filepath = "";
            var fileupload = document.getElementById(id);
            if (fileupload.value.length < 5) { alert('請(qǐng)選擇文件！'); return; }
            var agent = window.navigator.userAgent;
            if (document.all) {
                var isIE7 = agent.indexOf('MSIE 7.0') != -1;
                var isIE8 = agent.indexOf('MSIE 8.0') != -1;
                //IE7和IE8獲得文件路徑
                if (isIE7 || isIE8) {
                    fileupload.select();
                    filepath = document.selection.createRange().text;
                }
                //IE6獲得文件路徑
                else
                { filepath = file.value; }
                //PageMethods.ValidateFile(filepath, maxsize, ieCallBack);
                alert(filepath);
            }
            if (agent.indexOf("Firefox") >= 1) {
                alert("FF");
                alert(getValue());
                return false;
                if (fileupload.files) {
                    var size = fileupload.files[0].fileSize;
                    if (size > parseInt(maxsize)) {
                        fileupload.parentNode.innerHTML = '<input type="file" name="' + fileupload.name + '" id="' + fileupload.id + '" onchange="disableSave(this);"/> ';
                        alert("文件超過大??！");
                    }
                    else { alert("文件上傳成功！"); }
                }
            }
        }