how to find a label control within nested datalist on selectedIndexChanged?

[lisles]

how to find a label control within nested datalist on selectedIndexCh anged?

 protected void SelectedIndexChanged(object sender, EventArgs e)
    {
       
        dlEvntImages.Visible = true;
        BLL_NewsAndEvents objNE = new BLL_NewsAndEvents();
        objNE.title = dlEvents.DataKeys[dlEvents.SelectedIndex].ToString();
        objNE.getImageDetails();
        if (objNE.tests)
        {
            DataList dllEvntImages = (DataList)FindControl("dlEvntImages");
            
            
            
 
            //Label lblMsg1 = (Label)FindControl("lblMsg");
            Label lblMsg1 = (Label)dllEvntImages.FindControl("lblMsg");
                //(dlEvntImages.SelectedItem.FindControl("lblMsg"));
            Label lblId1 = (Label)dllEvntImages.FindControl("lblId");
            Label lblKey1 = (Label)dllEvntImages.FindControl("lblKey");
            Image evntImage1 = (Image)dllEvntImages.FindControl("evntImage");
            //lblMsg1.Visible = true;
            lblId1.Text = objNE.Id.ToString();
            lblKey1.Text = objNE.Key.ToString();
            lblMsg1.Text = objNE.imgDesc.ToString();
            evntImage1.ImageUrl = "~/ASHX/viewEvntImageHandler.ashx?Id=" + lblId1.Text + "&Key=" + lblKey1.Text;
            objNE.Close();


        }

    }

[Frinavale]

What's the problem?
The above code should work in theory.