[2008] events on placeholder ddlist

Guys,

I am populating a dropdownlist and adding it to a placeholder at runtime. How can I get to events of the drop down?

Ta
Bob

Add a event handler to the control as illustrated

Code:

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protected void Page_Load(object sender, EventArgs e)
    {
        DropDownList ddl=new DropDownList();
        ddl.AutoPostBack=true;
        ddl.Items.Add("Line1");
        ddl.Items.Add("Line2");
        Panel1.Controls.Add(ddl);
        ddl.SelectedIndexChanged+=new EventHandler(ddl_SelectedIndexChanged);
     

    }

    protected void ddl_SelectedIndexChanged(object sender,EventArgs e)
    {
        Response.Write("PostBackOccurs");
    }

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