I have successfully implemented serialized grid in my custom module. Steps are same as this - Grid serialization in magento 2

However there is only 1 input field - position. I need 2 input fields - position and qty. But when i write 2 input_names only 1 field gets posted in POST data. I want data of both.

Here is what I have tried so far:

File: /app/code/Vendor/Modulename/Block/Adminhtml/Customgrid/Edit/Tab/Gridfile.php

_prepareColumns function:

                'header'       => __('Qty'),
                'name'         => 'qty',
                'type'         => 'number',
                'validate_class'   => 'validate-number',
                'index'        => 'qty',
                'editable'     => true,
                'edit_only'    => false,
                'header_css_class' => 'col-qty',
                'column_css_class' => 'col-qty'

                'header'       => __('Position'),
                'name'         => 'position',
                'type'         => 'number',
                'validate_class' => 'validate-number',
                'index'        => 'position',
                'editable'     => true,
                'edit_only'    => false,
                'header_css_class' => 'col-position',
                'column_css_class' => 'col-position'

File: /app/code/Vendor/Modulename/view/adminhtml/layout/frontname_controller_action.xml


     <argument name="input_names" xsi:type="array">
            <item name="position" xsi:type="string">position</item>
            <item name="qty" xsi:type="string">qty</item>


      <argument name="input_names" xsi:type="string">position,qty</item>


      <argument name="input_names" xsi:type="string">position</item>

None of these work. First way only posts qty. Second way gives a blank page. Third way only posts position and not qty.

Any ideas as to what the correct syntax is ?

I have checked core files but all of them only use one input field.

1 Answer 1


By default, Magento allows more than 1 input field. It is only possible if serialized grid is set to Multi-dimensional mode.


It can be achieved in following way:

File: /Vendor/Module/view/adminhtml/layout/folder_controller_action.xml

<block class="Magento\Backend\Block\Widget\Grid\Serializer" name="custom_grid_serializer">
        <argument name="input_names" xsi:type="array">
            <item name="0" xsi:type="string">qty</item>
            <item name="1" xsi:type="string">sort_order</item>


File: /lib/web/mage/adminhtml/grid.js

In grid.js If you notice rowinit function, it checks the length of inputs. If total no. of inputs is greater then zero then it will execute a for loop:

    var inputs = $(row).select.apply($(row), selectors.flatten());
    if(checkbox && inputs.length > 0) { 
           //some core JS code
           for(var i = 0; i < inputs.length; i++) {
                //some other core JS code     

Now, this for loop is only executed if multidimensionalMode is set to true. If you trace back, you will find that multidimensionalMode is set in initialize function in following code:

initialize: function(hiddenDataHolder, predefinedData, inputsToManage, grid, reloadParamName){
        //some core JS code

        this.inputsToManage       = inputsToManage;
        this.multidimensionalMode = inputsToManage.length > 0;

        //some other core JS code

So, multidimensionalMode uses length property on inputsToManage which is the JSON form of our input_names argument defined in our layout xml file.

So, you have to declare xsi:type of input_names as array in layout xml file and assign values to the name attribute of item starting from zero(as array indices are numbered). This will form a JSON as below:

var inputsToManage = [{0:'qty',1:"sort_order"}];
inputsToManage.length = 1

Hence, this.multidimensionalMode will now be set to true

  • @KeyurShah - glad it helped :) Dec 15, 2016 at 7:17
  • can you please share the entire source code? i am working on same things but not able to get proper input value Apr 13, 2018 at 5:45
  • It's not working for me as well, How the hidden input fields get created and I will get values of this field in controller action? Apr 9, 2020 at 7:46
  • I have added my question on this link. magento.stackexchange.com/questions/310012/… Apr 9, 2020 at 8:02

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