Find a control dynamically added to a page

Where do you add the controls? to a place holder? I have given below a rough idea of how you could do this:

Add a place holder that will have the labels:

<form id="form1" runat="server">
    <div>
        <asp:PlaceHolder ID="plcMain" runat="server">

        </asp:PlaceHolder>
        <asp:Label runat="server" ID="lblInfo"></asp:Label>
    </div>
    </form>

Code - behind:

protected void Page_Load(object sender, EventArgs e)
{
    AddLinks();
}

private void AddLinks()
{
    for (int i=0;i<10;i++)
    {
        var linkButton = new LinkButton
                                    {
                                        ID = "lnkBtn" + i.ToString(),
                                        CommandArgument = i.ToString(),
                                        Text = "Link " + i.ToString()
                                    };
        linkButton.Click += new EventHandler(linkButton_Click);
        plcMain.Controls.Add(linkButton);
    }
}

protected void linkButton_Click(object sender, EventArgs e)
{
    var btn = sender as LinkButton;
    lblInfo.Text = "Link's command argument = " + btn.CommandArgument;
}

If you notice, you don't even need the FindControl method, just the linkButton_Click event handler. If you insist on using the FindControl method, you can do something like

LinkButton control = plcMain.FindControl("lnkBtn1") as LinkButton; // Find "Link 1"
// Do something w/ "control"

In your case, you use the FindControl method on the page. Try a recursive FindControl if you don't wish to start the search with a certain control http://weblogs.asp.net/palermo4/archive/2007/04/13/recursive-findcontrol-t.aspx[^]