Here's a sample I'm working on demonstrating the use a <ext:KeyMap> to handle the [enter] key in the Panel body.
Example
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Collections.Generic" %>
<%@ Import Namespace="Button=Ext.Net.Button" %>
<%@ Import Namespace="Ext.Net.Utilities" %>
<%@ Register assembly="Ext.Net" namespace="Ext.Net" tagprefix="ext" %>
<script runat="server">
protected override void OnInit(EventArgs e)
{
List<Button> buttons = ControlUtils.FindControls<Button>(this);
buttons.Each(btn => btn.DirectClick += delegate
{
X.Msg.Notify(btn.ID, this.TextField1.Text).Show();
});
base.OnInit(e);
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Ext.NET Example</title>
</head>
<body>
<form runat="server">
<ext:ResourceManager runat="server" />
<ext:Panel
ID="Panel1"
runat="server"
Title="Example"
Height="185"
Width="350"
Padding="5"
Layout="form"
DefaultAnchor="100%">
<Items>
<ext:TextField ID="TextField1" runat="server" FieldLabel="Message" />
<ext:Button ID="Button4" runat="server" IsFormField="true" Text="Submit 4" />
</Items>
<Buttons>
<ext:Button ID="Button1" runat="server" Text="Submit 1" />
<ext:Button ID="Button2" runat="server" Text="Submit 2" />
<ext:Button ID="Button3" runat="server" Text="Submit 3" />
</Buttons>
</ext:Panel>
<ext:KeyMap runat="server" Target="={Panel1.getBody()}">
<ext:KeyBinding>
<Keys>
<ext:Key Code="ENTER" />
</Keys>
<Listeners>
<Event Handler="e.stopEvent();#{Button2}.fireEvent('click');" />
</Listeners>
</ext:KeyBinding>
</ext:KeyMap>
</form>
</body>
</html>