Question

我使用plupload上传一些图像并将这些图像添加到div容器中。在执行了一些选项之后，我需要将编辑过的图像再次上传到代码隐藏中的同一个div。

可以这样做吗？如果可以，我该如何修改我的代码：

这就是我尝试上传图片并将其添加到div（拇指）的方式：

   <script type="text/javascript">
        $(function () {
            $("#<%=uploader.ClientId%>").plupload({
                runtimes: 'gears,flash,silverlight,browserplus,html5',
                url: 'Editor.aspx',
                max_file_size: '10mb',
                max_file_count: 21,
                chunk_size: '1mb',
                unique_names: true,
                rename: true,
                dragdrop:true,
                filters: [
            { title: "Image files", extensions: "jpg,gif,png" },
            { title: "Zip files", extensions: "zip" }
        ],

                flash_swf_url: 'js/plupload.flash.swf',


                silverlight_xap_url: 'js/plupload.silverlight.xap'
            });



            $('form').submit(function (e) {
                var uploader = $('#<%=uploader.ClientId%>').plupload('getUploader');


                if (uploader.files.length > 0) {

                    uploader.bind('StateChanged', function () {
                        if (uploader.files.length === (uploader.total.uploaded + uploader.total.failed)) {
                            $('form')[0].submit();
                        }
                    });

                    uploader.start();
                }
                else
                //alert('You must at least upload one file.');

                    return false;
            });



            var uploader = $('#<%=uploader.ClientId%>').plupload('getUploader');
            uploader.bind('FilesAdded', function (up, files) {

                var i = up.files.length,
                maxCountError = false;

                plupload.each(files, function (file) {
                    setTimeout(function () {
                        up.start();
                    }, 100);



                    if (uploader.settings.max_file_count && i >= uploader.settings.max_file_count) {
                        $.msgBox({
                            title: "Info",
                            content: "Uuh! Please don't put me any more files.<br>Maximum Upload limit is only 20 Images.<br>Rest of the Images will be removed.",
                            type: "info",
                            showButtons: true,
                            opacity: 0.1,
                            autoClose: false
                        });
                        uploader.removeFile(up.files[i - 1]);
                    } else {

                    }
                });

            });


            var uploader = $('#<%=uploader.ClientId%>').plupload('getUploader');
            uploader.bind('FileUploaded', function (up, file, res) {

                $('#<%=thumbs.ClientId%>').append("<div id=" + file.id + "><a href='Uploads/" + document.getElementById("<%=currentDirectory.ClientId%>").value + "/" + file.name + "' rel='group1'><img class='clickImage' src='Uploads/" + document.getElementById("<%=currentDirectory.ClientId%>").value + "/" + file.name + "' width='75' height='50' data-full='Uploads/" + document.getElementById("<%=currentDirectory.ClientId%>").value + "/" + file.name + "'/></div>");
                if (uploader.files.length === (uploader.total.uploaded + uploader.total.failed)) {
                    showStickySuccessToast();
                }

            });
        });




        function randomString(length) {
            var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz'.split('');

            if (!length) {
                length = Math.floor(Math.random() * chars.length);
            }

            var str = '';
            for (var i = 0; i < length; i++) {
                str += chars[Math.floor(Math.random() * chars.length)];
            }
            return str;
        }
    </script>

在我的代码隐藏中进行编辑操作后，我将所有这些图像保存到一个用户可以保存的文件夹中。所以我想要做的是在我的服务器文件夹中添加所有已存在的图像以显示它在同一个div（拇指）中，我在开头使用上传器添加图像。

Answer 1

要访问后面代码中的控件，控件必须具有runat =“server”。但是，使用Panel控件而不是div更简单。 Panel控件呈现为div，因此任何客户端JavaScript都将继续工作。

Image NewImage = new Image();
NewImage.ImageUrl= MapPath(@"~\Images\april.jpg");

Panel1.Controls.Add(NewImage);

从Asp.Net中的代码隐藏向div添加图像

1 个答案: