Hi,
Please clarify what exactly problems do you have with frames?
A configuration with master page can look something like this:
Master Page
<%@ Master Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!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:Viewport runat="server" Layout="border">
<Items>
<ext:Panel runat="server" Title="Center" Region="Center">
<Content>
<asp:ContentPlaceHolder ID="ContentPlaceHolderCenter" runat="server" />
</Content>
</ext:Panel>
<ext:Panel runat="server" Title="South" Region="South" Height="100">
<Content>
<asp:ContentPlaceHolder ID="ContentPlaceHolderSouth" runat="server" />
</Content>
</ext:Panel>
</Items>
</ext:Viewport>
</form>
</body>
</html>
Content Page
<%@ Page Language="C#" MasterPageFile="~/Master.Master" %>
<%@ Register Src="~/User controls/Center.ascx" TagPrefix="uc" TagName="Center" %>
<%@ Register Src="~/User controls/South.ascx" TagPrefix="uc" TagName="South" %>
<asp:Content ID="ContentCenter" ContentPlaceHolderID="ContentPlaceHolderCenter" runat="server">
<uc:Center runat="server" />
</asp:Content>
<asp:Content ID="ContentSouth" ContentPlaceHolderID="ContentPlaceHolderSouth" runat="server">
<uc:South runat="server" />
</asp:Content>
Center.ascx
<%@ Control Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
protected void ButtonClick(object sender, DirectEventArgs e)
{
X.GetCmp<DisplayField>("DisplayFieldSouth").Text = "Hello from Center user control";
}
</script>
<ext:FitLayout runat="server">
<Items>
<ext:Container runat="server">
<Items>
<ext:Button runat="server" Text="Click me" OnDirectClick="ButtonClick" />
</Items>
</ext:Container>
</Items>
</ext:FitLayout>
South.ascx
<%@ Control Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<ext:FitLayout runat="server">
<Items>
<ext:Container runat="server">
<Items>
<ext:DisplayField ID="DisplayFieldSouth" runat="server" Text="South" />
</Items>
</ext:Container>
</Items>
</ext:FitLayout>
I would suggest you to avoid using core html markup for layout managing purpose. Using respective layout managers would give you many benefits like cross-browser compatibility, resizable, scrollable, etc.