Question

i careate button control and place in panel but not working?

protected void Button1_Click(object sender, EventArgs e)
    {
        Button btn = new Button();
        btn.Text = "Test button";
        Panel1.Controls.Add(btn);
        btn.Click += new EventHandler(btn_Click);
    }

    void btn_Click(object sender, EventArgs e)
    {
        Response.Write("<script>alert('test')</script>");
    }

Answer 1

When you dynamically add controls to your page, you have to re-add them on any subsequent request (postback). The button you added in Button1_OnClick will not automatically be recreated in a subsequent request (e.g. in a postback).

There a lot’s of similar questions about this topic, where you can find details. For examples, use the following search:

• https://stackoverflow.com/search?q=dynamic+control+event+%5Basp.net%5D