Dynamically Add or remove control in asp.net core using JavaScript

If you want to add some controls on your web browser, i mean to say if you want to add controls on run time then you can easily dome with any script control, without using c# code. So, here i used Java Script code to add controls on a page. And your code is

Index.cshtml

<form method="post">

    <div id="firstdiv">

        <input type="text" name="testinput" />

                <input type="button" value="add dynamic" onclick="DynamicText()"/>

            </div>

            <input type="submit" value="submit"/>

</form>

JS----file

function DynamicText() {

    var division = document.createElement('DIV');

    division.innerHTML = DynamictextBox("");

    document.getElementById("firstdiv").appendChild(division);

}

function DynamictextBox(value) {

    return '<div><input type="text" name="dyntxt" /><input type="button" onclick="ReTextBox(this)" value="Remove"/></div>';

}

function ReTextBox(div) {

    document.getElementById("firstdiv").removeChild(div.parentNode.parentNode);

}

If you want to use this code , learn :