上传图像在线webapplication时拒绝访问 [英] access denied while uploading images online webapplication

问题描述

在上传图像时，找不到存储图像的路径。

while uploading images the path given to store images is not found.

推荐答案

您应该提供代码并详细解释您的问题。

ok，我猜你在谈论ASP.NET客户端的图像路径。你找不到任何上传文件的完整路径。因此，您可以在客户端对上传的图像进行编码，也可以查看图像，在按钮点击回发后，将encode（base64）数据转换为二进制并保存到数据库或将图像存储在应用程序服务器上。



遵循以下代码：

You should provide your code and explain more about your problem.
ok, I can guess that you are talking about image path of ASP.NET Client side. you cant find full path of any uploaded document. So you can encode your uploaded image on client side and also can view the image, after postback on button click get the encode (base64) data to binary and save to database or store image on application server.

follow this given code:

<form id="form1" runat="server">
    <div>
        <asp:Image ID="imgEmployee"  runat="server" ImageUrl="" Width="100px"

                    Height="120px" />

        <script type="text/javascript">
            function handleFileSelect(evt) {

                var fileUpload = document.getElementById('<%=photoUpload.ClientID%>');
                var imgEmployee = document.getElementById('<%=imgEmployee.ClientID%>');

                var files = evt.target.files; // FileList object
                // Loop through the FileList and render image files as thumbnails.
                for (var i = 0, f; f = files[i]; i++) {

                    // Only process image files.
                    if (!f.type.match('image.*')) {
                        continue;
                    }
                    var reader = new FileReader();
                    var base64Data;

                    reader.onload = (function (theFile) {
                        return function (e) {
                            // Render thumbnail.
                            var span = document.createElement('span');

                            base64Data = e.target.result;
                            var fileSize = base64Data.length;
                            var IndexData = base64Data.indexOf('base64,');
                            var fileName = escape(theFile.name);
                            imgEmployee.src = base64Data;


                        };
                    })(f);
                    // Read in the image file as a data URL.
                    reader.readAsDataURL(f);
                }
            }





        </script>
        <div>

<asp:FileUpload runat="server" ID="photoUpload" TabIndex="7"  onchange="handleFileSelect(event)"   />


        </div>

    </div>
    </form>

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