<%@ page language="c#" autoeventwireup="true" %>
<script language="c#" runat="server">
void page_load(object sender,eventargs e){
databind();
}
</script>
<form id="form_1" runat="server">
<asp:textbox textmode="multiline" columns="50" rows="10" id="textbox_1" runat="server"/>
<input id="button_1" type="submit" value="button" runat="server"/>
</form>
<asp:label id="label_1" text="<%#textbox_1.text%>" runat="server"></asp:label>