Advanced JavaScript with Internet Explorer: Retrieving Networking Configuration Information - How to retrieve only network adapter information using JavaScript
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Now, let us try to develop a simple script (JavaScript) which shows the technique for retrieving the information for only network adapters. The entire code for the sample is as follows:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title></title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1">
<meta name="vs_targetSchema" content="http://schemas.
microsoft.com/intellisense/ie5">
<script id="clientEventHandlersJS" language="javascript">
<!--
function Button1_onclick() {
var locator = new ActiveXObject ("WbemScripting.SWbemLocator");
var service = locator.ConnectServer(".");
var properties = service.ExecQuery("SELECT * FROM Win32_NetworkAdapter");
var e = new Enumerator (properties);
document.write("<table border=1>");
dispHeading();
for (;!e.atEnd();e.moveNext ())
{
var p = e.item ();
document.write("<tr>");
document.write("<td>" + p.AdapterType + "</td>");
document.write("<td>" + p.AdapterTypeId + "</td>");
document.write("<td>" + p.DeviceID + "</td>");
document.write("<td>" + p.Index + "</td>");
document.write("<td>" + p.MACAddress + "</td>");
document.write("<td>" + p.Manufacturer + "</td>");
document.write("<td>" + p.MaxSpeed + "</td>");
document.write("<td>" + p.NetConnectionID + "</td>");
document.write("<td>" + p.NetConnectionStatus + "</td>");
document.write("<td>" + p.PNPDeviceID + "</td>");
document.write("<td>" + p.SystemName + "</td>");
document.write("</tr>");
}
document.write("</table>");
}
function dispHeading()
{
document.write("<thead>");
document.write("<td>AdapterType</td>");
document.write("<td>AdapterTypeId</td>");
document.write("<td>DeviceID</td>");
document.write("<td>Index</td>");
document.write("<td>MACAddress</td>");
document.write("<td>Manufacturer</td>");
document.write("<td>MaxSpeed</td>");
document.write("<td>NetConnectionID</td>");
document.write("<td>NetConnectionStatus</td>");
document.write("<td>PNPDeviceID</td>");
document.write("<td>SystemName</td>");
document.write("</thead>");
}
//-->
</script>
</head>
<body>
<INPUT id="Button1" type="button" value="Button"
name="Button1" language="javascript" onclick="return Button1_onclick()">
</body>
</html>
The above would automatically list all network adapters belonging to a computer along with only few of the properties like AdapterType, MAC Address, and so on. To retrieve this information, I used a built-in class, “Win32_NetworkAdapter.” The class internally has a lot of properties, methods and events. But, in the above example we concentrated only on some limited properties related to the “Win32_NetworkAdapter” class.
The “for” loop I used in the above code iterates for every logical/physical network adapter present in the system and finally retrieves only the properties of that adapter.
Next: How to retrieve network connection information using JavaScript >>
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