表单未提交输入类型=“文件”值

Question

I am submitting a simple form to an asp.net page. Everything works fine except the form does not submit the file input values.

<form id="mainform" action="http://<%=Request.Url.Authority %>/ABC/Handler/Submit.aspx" method="post" enctype="multipart/form-data">
<input type='file' id='file_d6'data-mandatory='0' name='file_d6' style='visibility: hidden; position: absolute;'  onchange='showPreview(this)' />
<input type='file' id='file_d7'data-mandatory='0' name='file_d7' style='visibility: hidden; position: absolute;'  onchange='showPreview(this)' />

<input style='height: 100%;' type='submit' class='subCtrl'  onclick='return isReadyToSubmit();' >
</form>

In the function isReadyToSubmit I check the value of all input fields in the form. It shows me values of both file input fiels, but when I submit the form it submits all fields except file input

function isReadyToSubmit()
{
     $("form#mainform :input").each(function(){
         alert($(this).val());
     });
    return true;
}

Answer 1

The file post is not present in the $_POST but in the $_FILES array. Please try print_r($_FILES); at the top of your PHP script? Hope that this helps

Answer 2

The issue was not at client side but was at server side. I was using Request.Form.GetKey(intIndex ) it gave me all other input values except files, but using Request.Files[intIndex] solved the issue.