How to pass a textbox value from view to a controller in MVC 4?

Question

Here i am fetching the value from database and showing it in a input field

and

Answer 1

your link is generated when the page loads therefore it will always have the original value in it. You will need to set the link via javascript

You could also just wrap that in a form and have hidden fields for id, productid, and unitrate

Here's a sample for ya.

HTML

click me

JS

function changeUrl(){
   var url = document.getElementById("imgUpdate").getAttribute('href');
   var inputValue = document.getElementById('ss').value;
   var currentQ = GiveMeTheQueryStringParameterValue("quantity",url);
    url = url.replace("quantity=" + currentQ, "quantity=" + inputValue);
document.getElementById("imgUpdate").setAttribute('href',url)
}

    function GiveMeTheQueryStringParameterValue(parameterName, input) {
    parameterName = parameterName.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regex = new RegExp("[\\?&]" + parameterName + "=([^&#]*)");
    var results = regex.exec(input);
    if (results == null)
        return "";
    else
        return decodeURIComponent(results[1].replace(/\+/g, " "));
}

this could be cleaned up and expanded as you need it but the example works