[英]How to display message and retrieve filename using DOM?
我下面有一個PHP腳本,稱為cancelimage.php,它將顯示一條取消消息:
<?php
$image_file_name = $_GET["imagefilename"];
echo "$image_file_name Upload was Canceled";
?>
問題是,當我單擊“取消”按鈕時,它不顯示此消息。 而是顯示消息“文件上傳期間發生錯誤”。 我相信出現此消息的原因是因為我聲明“ return stopImageUpload”。
所以我的問題是,如何才能像現在一樣返回stopImageUpload,但是能夠顯示取消消息而不是現在顯示的消息?
以下是我當前嘗試解決此問題的嘗試,但失敗了。 下面顯示了取消按鈕功能和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;
}
下面是取消按鈕,該按鈕假設是要從DOM中檢索文件名:
<input type='button' name='imageCancel' class='imageCancel' image_file_name='" + imagefilename + "' value='Cancel' />
問題似乎是這樣的:
if (success == 1) {
和這個:
return stopImageUpload();
stopImageUpdate具有2個參數-如果調用失敗,則首先成功是不確定的(不是1)。 修復可能如下所示:
return stopImageUpload(0, image_file_name);
然后在您的stopImageUpload中將else更改為:
result = '<span class="imageemsg">' + image_file_name + ' Upload Was Cancelled!</span><br/><br/>';
高溫超導
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