add a new row in a combobox

[anirai]

this my code to populate a combobox

Dim myCmd1 As SqlClient.SqlCommand = cn.CreateCommand
        myCmd1.CommandText = "Select emp_name from emp_info"
        myCmd1.Connection = cn
        Dim da As New SqlClient.SqlDataAdapter()
        da.SelectCommand = myCmd1
        Dim dt As New DataTable()
        da.Fill(dt)


        Me.ComboBox1.DisplayMember = "emp_name"
        Me.ComboBox1.ValueMember = "emp_name"
        Me.ComboBox1.DataSource = dt

i want to add a new row above all emp names.."ALL"..
how do i do that??/
thanks