how to return a value from JavaScript to pageload function
I am calling my JavaScript function in page load
JScript File:
function fnCheckBrowserType()
{
if(navigator.appName == "Microsoft Internet Explorer" || navigator.appName == "Netscape")
{
//document.all["HhdnBrowsertype"].value=navigator.appName
document.all["HhdnBrowsertype"].value="1"
alert(document.getElementById("HhdnBrowsertype").value);
}
else
{
//document.getElementById("HhdnBrowsertype").value = navigator.appName
document.all["HhdnBrowsertype"].value="0"
开发者_JAVA技巧alert(document.getElementById("HhdnBrowsertype").value);
}
}
ASP.NET code behind:
protected void Page_Init(object sender, EventArgs e)
{
Page.ClientScript.RegisterStartupScript(typeof(string), "fnCheckBrowserType", "fnCheckBrowserType();", true);
if (HhdnBrowsertype.Value.ToString() == "1")
{
int IE = 1;
}
else
{
int opera = 0;
}
}
HTML:
<script src="Browsers.js" type="text/javascript"></script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<%--<input id="HhdnBrowsertype" type="hidden" name="HhdnBrowsertype" runat="server" />--%>
<asp:HiddenField ID="HhdnBrowsertype" runat="server" />
</div>
</form>
</body>
In pageload i am calling my javascript function here i am setting the hiddden field value "0" or "1" based on the browser type but in page load HhdnBrowsertype value is always empty
is there anyway from javacript i return an value based on that value i set my hidden field in page load
Please help in me how i can return an vlaue "0" or "1" from javscript to page load function
thanks
You're doing it the wrong way.. to do it server side have such code:
protected void Page_Init(object sender, EventArgs e)
{
string browser = Request.Browser.Browser;
...
}
For IE (all versions) it will return "IE", Chrome will return "Chrome" etc..
If you want to detect the browser type in code behide then use
Request.Browser.Browser
this will give the browser type like IE
加载中,请稍侯......
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