Question

我有一个名为cancelimage.php的php脚本，它会显示一条取消消息：

<?php

$image_file_name = $_GET["imagefilename"];

    echo "$image_file_name Upload was Canceled";


?>

问题是，当我点击“取消”按钮时，它不会显示此消息。而是显示消息“文件上载期间出错”。我相信这条消息的出现是因为我说的是“return stopImageUpload”。

那么我的问题是我怎么能像现在这样回到stopImageUpload，而是能够显示取消消息而不是现在显示的消息？

以下是我目前尝试修复此问题但尝试失败的尝试。下面显示了取消按钮功能和stopImageUpload功能：

var cancelimagecounter = 0;
function startImageUpload(imageuploadform, imagefilename) {
    cancelimagecounter++;
    var _cancelimagecounter = cancelimagecounter;
    $('.imageCancel').on("click", function (event) {
        $('.upload_target').get(0).contentwindow
        $("iframe[name='upload_target']").attr("src", "javascript:'<html></html>'");
        jQuery.ajax("cancelimage.php?imagefilename=" + image_file_name).done(function (data) {
            $(".imageemsg" + _cancelimagecounter).html(data);
        });
        return stopImageUpload();
    });
    return true;
}
var imagecounter = 0;
function stopImageUpload(success, imagefilename) {
    var result = '';
    if (success == 1) {
        result = '<span class="imagemsg' + imagecounter + '">The file was uploaded successfully!</span><br/><br/>';
        $('.listImage').eq(window.lastUploadImageIndex).append('<div>' + htmlEncode(imagefilename) + '<button type="button" class="deletefileimage" image_file_name="' + imagefilename + '">Remove</button><br/><hr/></div>');
    } else {
        result = '<span class="imageemsg">There was an error during file upload!</span><br/><br/>';
    }
    return true;
}

下面是取消按钮，它假设从DOM中检索文件名：

<input type='button' name='imageCancel' class='imageCancel' image_file_name='" + imagefilename + "' value='Cancel' />

Answer 1

问题似乎是：

    if (success == 1) {

而且：

return stopImageUpload();

stopImageUpdate有2个参数 - 如果你没有成功调用则首先成功将是未定义的（不是1）。修复可能如下所示：

return stopImageUpload(0, image_file_name);

在你的stopImageUpload中，将else更改为：

result = '<span class="imageemsg">' + image_file_name + ' Upload Was Cancelled!</span><br/><br/>';

HTH

如何使用DOM显示消息和检索文件名？

1 个答案: