Gets the version number of ECMAScript that the browser supports.
Assembly: System.Web (in System.Web.dll)
Syntax
Public ReadOnly Property EcmaScriptVersion As [%$TOPIC/87tzkaz1_en-us_VS_110_1_0_0_0_0%]public [%$TOPIC/87tzkaz1_en-us_VS_110_1_0_1_0_0%] EcmaScriptVersion { get; }public:
property [%$TOPIC/87tzkaz1_en-us_VS_110_1_0_2_0_0%]^ EcmaScriptVersion {
[%$TOPIC/87tzkaz1_en-us_VS_110_1_0_2_0_1%]^ get ();
}member EcmaScriptVersion : [%$TOPIC/87tzkaz1_en-us_VS_110_1_0_3_0_0%] with get
Examples
The following code example shows how to determine whether the browser supports an ECMAScript major version number greater than 1.
<%@ page language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
CheckBrowserCaps()
End Sub
Function CheckBrowserCaps()
Dim labelText As String = ""
Dim myBrowserCaps As System.Web.HttpBrowserCapabilities = Request.Browser
If (CType(myBrowserCaps, System.Web.Configuration.HttpCapabilitiesBase)).EcmaScriptVersion.Major > 1 Then
labelText = "EcmaScript version is greater than 1."
Else
labelText = "EcmaScript version is less than or equal to 1."
End If
Label1.Text = labelText
End Function 'CheckBrowserCaps
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Browser Capabilities Sample</title>
</head>
<body>
<form runat="server" id="form1">
<div>
Browser Capabilities:
<p/><asp:Label ID="Label1" Runat="server" />
</div>
</form>
</body>
</html><%@ page language="C#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load(Object Sender, EventArgs e)
{
CheckBrowserCaps();
}
void CheckBrowserCaps()
{
String labelText = "";
System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).EcmaScriptVersion.Major > 1)
{
labelText = "EcmaScript version is greater than 1.";
}
else
{
labelText = "EcmaScript version is less than or equal to 1.";
}
Label1.Text = labelText;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Browser Capabilities Sample</title>
</head>
<body>
<form runat="server" id="form1">
<div>
Browser Capabilities:
<p/><asp:Label ID="Label1" Runat="server" />
</div>
</form>
</body>
</html>
Platforms
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
See Also
