Get img from HTML to database

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hej agian
im trying to preview my image before uploading it to my db , so i used javascript its work with html img but not asp image .

so now im trying to save image into my database from html tag img.
the problem i cant catch the element img ! in code behinde
is there any possible way to store in my database_

What I have tried:

function showpreview(input) {

if (input.files && input.files[0]) {

var reader = new FileReader();
reader.onload = function (e) {
$('#imgpreview').css('visibility', 'visible');
$('#imgpreview').attr('src', e.target.result);
}
reader.readAsDataURL(input.files[0]);
}

}

Posted 21-Sep-18 2:45am

Member 13990122

Updated 21-Sep-18 3:38am

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Treat my content as plain text, not as HTML

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F-ES Sitecore · Accepted Answer · 2018-09-21T03:39:00

You can't get the content of an image tag, img or asp:Image. You can show the preview if you want, but you have to submit the file as part of a form submission and read it as a normal file.

Google "asp.net upload image file" and you'll find examples of how to do this.

<asp:FileUpload ID="myFile" runat="server" onchange="showpreview(this);" />

<img id="imgpreview" />

<asp:Button ID="btnSubmit" OnClick="btnSubmit_Click" runat="server" />

<script type="text/javascript">
    function showpreview(input) {

        if (input.files && input.files[0]) {

            var reader = new FileReader();
            reader.onload = function (e) {
                $('#imgpreview').css('visibility', 'visible');
                $('#imgpreview').attr('src', e.target.result);
            }
            reader.readAsDataURL(input.files[0]);
        }

    }
</script>