我在这里有一个应用程序:应用程序
请按照以下步骤操作:
单击
Add Question
按钮将文件输入附加到下表中:通过使用文件输入上传 2 张图片(一次一张),每次成功上传一张图片时,它会在表格下方和下方显示上传文件的名称,并在文本输入中显示其 id。
现在问题就在这里,单击
Remove
您上传的第二个文件名的按钮,您将看到它成功删除了关联的文件名和删除按钮,但它删除了下面的两个文本输入。这是不正确的,它应该只删除其 id 与删除的文件名相关联的文本输入。
所以这是我的问题,当用户单击Remove
按钮时,如何才能仅删除与已删除文件名关联的文本输入,而不是在单击删除按钮时删除所有文本输入?
下面的代码显示了文件输入以及如何将其附加到下面的 html 表中,以及显示.hiddenimg
存储文本输入的 div:
Jquery附加文件输入表单:
function GetFormImageCount(){
return $('.imageuploadform').length + 1;
}
function insertQuestion(form) {
var $tbody = $('#qandatbl_onthefly > tbody');
var $tr = $("<tr class='optionAndAnswer' align='center'>");
var $image = $("<td width='17%' class='image'></td>");
var $fileImage = $("<form action='imageupload.php' method='post' enctype='multipart/form-data' target='upload_target_image' onsubmit='return imageClickHandler(this);' class='imageuploadform' >" +
"<p class='imagef1_upload_form'><label>" +
"Image File: <input name='fileImage' type='file' class='fileImage' /></label><br/><br/><label class='imagelbl'>" +
"<input type='submit' name='submitImageBtn' class='sbtnimage' value='Upload' /></label>" +
"<p class='imagef1_upload_process'>Loading...<br/><img src='Images/loader.gif' /></p>" +
"<input type='hidden' class='numimage' name='numimage' value='" + GetFormImageCount() + "' />" +
"</p><p class='imagemsg'></p><p class='listImage'></p>" +
"<iframe class='upload_target_image' name='upload_target_image' src='/' style='width:0px;height:0px;border:0px;solid;#fff;'></iframe></form>");
$image.append($fileImage);
$tr.append($image);
$tbody.append($tr);
}
HTML 表单和表格,其中附加了文件输入表单,并且文本输入存储在.hiddenimg
div 标记中:
<form id="QandA" action="insertQuestion.php" method="post">
<table id="questionBtn" align="center">
<tr>
<th>
<input id="addQuestionBtn" name="addQuestion" type="button" value="Add Question" onClick="insertQuestion(this.form)" />
</th>
</tr>
</table>
</div>
<hr/>
<table id="qandatbl" align="center" cellpadding="0" cellspacing="0" border="0">
<thead>
<tr>
<th width="17%" class="image">Image</th>
</tr>
</thead>
</table>
<div id="qandatbl_onthefly_container">
<table id="qandatbl_onthefly" align="center" cellpadding="0" cellspacing="0" border="0">
<tbody>
</tbody>
</table>
</div>
<div class="hiddenimg"><!-- All uploaded image file ids go here --></div>
</form>
下面是显示文件上传处理程序的代码,启动文件上传的函数,重要的是停止文件上传的函数,它控制文件名、文本输入和删除按钮的显示,以及控制Remove
按钮时的删除点击:
上传按钮处理程序:
function imageClickHandler(imageuploadform){
if(imageValidation(imageuploadform)){
window.lastUploadImageIndex = $('.imageuploadform').index(imageuploadform);
return startImageUpload(imageuploadform);
}
return false;
开始上传:
function startImageUpload(imageuploadform){
$(imageuploadform).find('.imagef1_upload_process').show()
$(imageuploadform).find('.imagef1_upload_form').hide();
$(imageuploadform).find('.imagemsg').hide();
sourceImageForm = imageuploadform;
return true;
}
上传完成:
var imagecounter = 0;
function stopImageUpload(success, imageID, imagefilename){
var result = '';
imagecounter++;
if (success == 1){
result = '<span class="imagemsg'+imagecounter+'">The file was uploaded successfully</span>';
$('.hiddenimg').eq(window.lastUploadImageIndex).append('<input type="text" name="imgid[]" id="'+imageID+'" value="' + imageID + '" />');
$('.listImage').eq(window.lastUploadImageIndex).append('<div>' + htmlEncode(imagefilename) + '<button type="button" class="deletefileimage" data-imageID="'+imageID+'" data-image_file_name="' + imagefilename + '">Remove</button><br/><hr/></div>');
}
$(sourceImageForm).find('.imagef1_upload_process').hide();
$(sourceImageForm).find('.imagemsg').html(result);
$(sourceImageForm).find('.imagemsg').show();
$(sourceImageForm).find(".fileImage").replaceWith("<input type='file' class='fileImage' name='fileImage' />");
$(sourceImageForm).find('.imagef1_upload_form').show();
var _imagecounter = imagecounter;
$('.listImage').eq(window.lastUploadImageIndex).find(".deletefileimage").on("click", function(event) {
jQuery.ajax("deleteimage.php?imagefilename=" + $(this).attr('data-image_file_name')).done(function(data) {
$(".imagemsg" + _imagecounter).html(data);
});
$(this).parent().remove();
$(".hiddenimg input").remove();
});
return true;
}