Hi,
Please look at the example.
Parent Page
<%@ Page 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:TabPanel ID="TabPanel1" runat="server">
<Items>
<ext:Panel ID="Panel1" runat="server" Title="Tab 1">
<AutoLoad Mode="IFrame" Url="TestIFrame.aspx">
<Params>
<ext:Parameter Name="containerID" Value="Panel1" />
</Params>
</AutoLoad>
</ext:Panel>
<ext:Panel ID="Panel2" runat="server" Title="Tab 2">
<AutoLoad Mode="IFrame" Url="TestIFrame.aspx">
<Params>
<ext:Parameter Name="containerID" Value="Panel2" />
</Params>
</AutoLoad>
</ext:Panel>
</Items>
</ext:TabPanel>
</form>
</body>
</html>
Child Page
<%@ Page Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
this.Hidden1.Value = this.Request["containerID"];
}
</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:Hidden ID="Hidden1" runat="server" />
<ext:Button runat="server" Text="Close this tab">
<Listeners>
<Click Handler="parent.TabPanel1.closeTab(Hidden1.getValue());"/>
</Listeners>
</ext:Button>
</form>
</body>
</html>