how to set button click if id is set dynamicly

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim dtholidays As New DataTable()
        dtholidays = dateallreadybooked.getusers()
        Dim myhols As DataView
        myhols = New DataView(dtholidays, "", "", DataViewRowState.CurrentRows)

        For Each Dayitis In myhols

            Dim linkbutton As New LinkButton
            linkbutton.Text = Dayitis.Item("FirstName") & " " & Dayitis.Item("Surename")
            linkbutton.ID = Dayitis.Item("Surename")
            Dim newline As String = Environment.NewLine
            holder.Controls.Add(linkbutton)
            Dim spacer As New System.Web.UI.WebControls.Label
            spacer.Text = "<br />"
            holder.Controls.Add(spacer)
        Next
    End Sub

  Protected Sub Dayitis.Item("FirstName")_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Dayitis.Item("FirstName").Click

    End Sub