Question

Is it possible to remove or delete all jQuery codes from page in codebehind?
First I want to delete all and then recreate some of them.

Answer 1

I think you are thinking about this the wrong way, you don’t need to remove the code just add a condition that means it only runs when you want it to.
For example you could add a class to the element you want to affect with your jQuery and only run the click function if it has this class. When you don’t want it to run remove the class, when you do want it to run add the class…. simple.

$('#MainContent_fileUpload').live('change', function () { 
    if($(this).hasClass('active')){ 
        $("#MainContent_btnUpload").click(); 
    }
});

if (condition of acivity){
    $('#MainContent_fileUpload').addClass('active')
}

if (condition of inacivity){
    $('#MainContent_fileUpload').removeClass('active')
}