session value as caption in aps.net

<asp:Label ID="lblHeader1" runat="server" Text="Transaction " Font-Names="Calibri"                         ForeColor="#FFFF99" Font-Size="X-Large" />

How can i add a session value as caption in this just after the above label in the header
Now i placed a textbox.ie textbox1.text ="Tenant No=" + Session("Term")
Instead of textbox i want the value above as caption.Can it be possible..?
Thanks