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How to make function for dynamicly add/remove controls, something like the image preview:

Link for the image

I want to put a button, add new field, and a buttons to remove next to every field as in the image preview which i attach above?

What I have tried:

How to make function for dynamicly add/remove controls
Updated 23-Sep-16 1:00am

Never tested on this, but you could try something like this:

protected void Page_Load(object sender, EventArgs e)
    if (!IsPostBack)
        int occurence =1;
        ViewState["Counter"] = occurence;


protected void Button1_Click(object sender, EventArgs e)
    if(ViewState["Counter"] != null){
       int count = Convert.ToInt32(ViewState["Counter"]);
       ViewState["Counter"] = count + 1;

protected void LoadUserControl()
    int count = Convert.ToInt32(ViewState["Counter"]);
    if (count > 0)
        for (int i = 0; i < count; i++)
            WebUserControl uc = (WebUserControl)Page.LoadControl("WebUserControl.ascx");
            webUC.ID = "webUC" + i.ToString();
            //add the user control in the form
            //note that you can also add them in a PlaceHolder or Panel control

Keep in mind that the code above is just a quick example, so be careful when using ViewState to avoid page performance issue. Also ViewState has a limit when it comes to size, so make sure that you don't store a huge amount of data in it.

I would also suggest you to read on Dynamic Controls creation and Page cycle events.

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try this

<!DOCTYPE html>
    <ul id="ul1"> </ul>
    <a href="#" onclick="add()" style="color:green;text-decoration:none">Add new</a>
        function add() {
            var li = document.createElement('li');
            li.innerHTML = '<select><option>Select</option></select> <a  href="#" onclick="remov(this)"  style="color:red;text-decoration:none">&times;</a>'
        function remov(obj)
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JordanTrajkov 21-Sep-16 12:00pm    
I need some c# solution.
Karthik_Mahalingam 21-Sep-16 12:03pm    
creating dynamic controls in asp is not a good approach, it will be difficult to get the values on post back..
state management is difficult.
use client side creation with AJAX, which is most recommended one for this type of functionality.
JordanTrajkov 21-Sep-16 12:11pm    
but i have to make an function to add complex User Controls, which contain many standard .net controls like (txtboxes, droddowns, linkbuttons..) Is it possible with AJAX and do you have some example to show?
Karthik_Mahalingam 21-Sep-16 12:14pm    
jquery ajax calls will not support asp user controls to add dynamically..
but you can refer AjaxToolKit,
using update panel

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