Transfer the name of the file from the upload to the text field

Question

Transfer the name of the file from the upload to the text field

I am working on a form section that allows users to upload a file. I am looking to only have the filename sent to a text field within the same form. For example, if a user uploads "C:/Folder/image.jpg", I want the text field to display "image.jpg". I have attempted to write some code myself, but I am aware that there are errors:

function ff_uploadimages_action(element, action)
{var m = data.match(/((*):\/)/(.*)[\/\\]([^\/\\]+\.\w+)$/);
switch (action) {
case 'change':
if (data.match(/((*):\/)/(.*)[\/\\]([^\/\\]+\.\w+)$/).value)
ff_getElementByName('filename').value = m[2].text;
        default:;
    } // switch
} // ff_uploadimages_action

The ff_uploadimages field pertains to the file upload, while the filename field is where the name should be displayed. Any assistance would be greatly appreciated! Thank you.

javascript function upload action

Answer 1

Answer №1

Here is a method to achieve this

document.getElementById('upload').onchange = uploadOnChange;

function uploadOnChange() {
  var filename = this.value;
  var lastIndex = filename.lastIndexOf("\\");

  if (lastIndex >= 0) {
    filename = filename.substring(lastIndex + 1);
  }

  document.getElementById('filename').value = filename;
}

<input id="upload" type="file" />
<input id="filename" type="text" />

jQuery is not explicitly mentioned, but considering its widespread use, here is the same solution using jQuery

jQuery:

$('#upload').change(function() {
    var filename = $(this).val();
    var lastIndex = filename.lastIndexOf("\\");
    
    if (lastIndex >= 0) {
        filename = filename.substring(lastIndex + 1);
    }

    $('#filename').val(filename);
});

Demo:

http://jsfiddle.net/pxfunc/WWNnV/4/

Answer 2

Here is a method to achieve this

document.getElementById('upload').onchange = uploadOnChange;

function uploadOnChange() {
  var filename = this.value;
  var lastIndex = filename.lastIndexOf("\\");

  if (lastIndex >= 0) {
    filename = filename.substring(lastIndex + 1);
  }

  document.getElementById('filename').value = filename;
}

<input id="upload" type="file" />
<input id="filename" type="text" />

jQuery is not explicitly mentioned, but considering its widespread use, here is the same solution using jQuery

jQuery:

$('#upload').change(function() {
    var filename = $(this).val();
    var lastIndex = filename.lastIndexOf("\\");
    
    if (lastIndex >= 0) {
        filename = filename.substring(lastIndex + 1);
    }

    $('#filename').val(filename);
});

Demo:

http://jsfiddle.net/pxfunc/WWNnV/4/

Answer 3

Answer №2

Here is an example of HTML and JS code:

<input id="upload" type="file" onChange="uploadOnChange(this)" />
<input id="filename" type="text" />

And here is the corresponding JS function:

function uploadOnChange(e) {
    var filename = e.value;var lastIndex = filename.lastIndexOf("\\");
    if (lastIndex >= 0) {
        filename = filename.substring(lastIndex +1);
    }
    document.getElementById('filename').value = filename;
}

Answer 4

Here is an example of HTML and JS code:

<input id="upload" type="file" onChange="uploadOnChange(this)" />
<input id="filename" type="text" />

And here is the corresponding JS function:

function uploadOnChange(e) {
    var filename = e.value;var lastIndex = filename.lastIndexOf("\\");
    if (lastIndex >= 0) {
        filename = filename.substring(lastIndex +1);
    }
    document.getElementById('filename').value = filename;
}

Answer 5

Answer №3

To simplify this process in jQuery, you can use the following method:

HTML Code:

<input type="file" id="inputFile" class="hidden"/>
<input type="text" id="inputDisplayFileName" readonly/>
<button id="buttonChooseFile">Choose file</button>

jQuery Code:

$("#buttonChooseFile").click(function()({
    $("#inputFile").click();        
});

$("#inputFile").change(function(){
    var fileName = $("#inputFile").prop('files')[0]["name"];

    $("inputDisplayFileName").val(fileName);
});

In this scenario, the default file upload option is hidden to allow for custom styling. When the button is clicked, it triggers the hidden file upload. Upon selecting a file, the .onchange() event handles the file copying to the read-only input field.

Answer 6

To simplify this process in jQuery, you can use the following method:

HTML Code:

<input type="file" id="inputFile" class="hidden"/>
<input type="text" id="inputDisplayFileName" readonly/>
<button id="buttonChooseFile">Choose file</button>

jQuery Code:

$("#buttonChooseFile").click(function()({
    $("#inputFile").click();        
});

$("#inputFile").change(function(){
    var fileName = $("#inputFile").prop('files')[0]["name"];

    $("inputDisplayFileName").val(fileName);
});

In this scenario, the default file upload option is hidden to allow for custom styling. When the button is clicked, it triggers the hidden file upload. Upon selecting a file, the .onchange() event handles the file copying to the read-only input field.

Transfer the name of the file from the upload to the text field

Answer №1

Answer №2

Answer №3

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