How to dynamically add a div using JQuery?

Question

I have the following html which displays 3 textboxes and an add button:

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Answer 1

$(document).ready(function() {
    $('#imgBtnAddNewLineItem').click(function() {
        $('#container').append('<div></div>');
    });
});

Update 2

Create a normal button like so:

<input type="button" id="imgBtnAddNewLineItem" value="Add lineitem" />

Update ** This is also updated with comments etc.. **

//Count the lineItems to make sure they are unique
var lineItemCount = 0;

//On document ready 
$(document).ready(function() {
    //On button click
    $('#imgBtnAddNewLineItem').click(function(e) {
        /*
           ADD THE FOLLOWING LINE TO PREVENT THE POSTBACK
           P.S. - Make sure you pass -e- to this function... 

         */
         e.preventDefault();



         //Increase the lineitemcount
         lineItemCount++;
         //Add a new lineitem to the container, pass the lineItemCount to make sure getLineItem() can generate a unique lineItem with unique Textbox ids
         $(container).append(getLineItem(lineItemCount));
    });
});

//Create a new DIV with Textboxes
function getLineItem(number) {
    var div = document.createElement('div');
    //Give the div a unique id

    div.setAttribute('id','lineitem_' + number);

    //pass unique values to the getTextbox() function
    var t1 = getTextbox('txt_' + number + '_1');
    var t2 = getTextbox('txt_' + number + '_2');
    var t3 = getTextbox('txt_' + number + '_3');

    div.appendChild(t1);
    div.appendChild(t2);
    div.appendChild(t3);

    return div;
}

//Create a textbox, make sure the id passed to this function is unique...
function getTextbox(id) {
    var textbox = document.createElement('input');
    textbox.setAttribute('id',id);
    textbox.setAttribute('name',id);
    return textbox;
}

Answer 2

Try something like this:

$(document).ready(function() {
  $('#imgBtnAddNewLineItem').click(function() {
    var container = $("#container");
    var line = $('#line-item').clone().attr("id", "line-item-2")
    var lineCount = container.children().length + 1;
    line.attr("id", line.attr("id") + "-" + lineCount);
    line.find(":text").each(function() {
      // IDs need to be unique
      $(this).attr("id", $(this).attr("id") + "-" + lineCount);
      $(this).attr("name", $(this).attr("name") + "-" + lineCount);
      // clear the value since we're cloning a line that may have values in it
      $(this).val("");
    });
    container.append(line);
  });
});

Note: you need to change the id.

Answer 3

You can use .append() method or .html()