find visitor's location using IP address

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Hi friends,

I have some problem to finding visitor's location.my code could be produce some error. i have pasted my code below

Code:

C#

string ipaddress;
System.Web.HttpRequest Request;
ipaddress =Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

if (ipaddress == "" || ipaddress == null)
ipaddress = Request.ServerVariables["REMOTE_ADDR"];
DataTable dt = GetLocation(ipaddress);

if (dt != null)
{

if (dt.Rows.Count > 0)
{

city = dt.Rows[0]["City"].ToString();

RegionName = dt.Rows[0]["RegionName"].ToString();

CountryName = dt.Rows[0]["CountryName"].ToString();

CountryCode = dt.Rows[0]["CountryCode"].ToString();

}

else
{
}

}

Error Line:

ipaddress =Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

Error message:
"Use of unassigned local variable 'Request' "

anybody knows to solve this issue and get the visitors location using ip address.

regards
sasi

Posted 27-Jul-11 22:06pm

ramuksasi

Updated 27-Jul-11 22:08pm

Manas Bhardwaj

v2

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Manas Bhardwaj · Answer 1 · 2011-07-27T22:13:00

Solution 1

This is the first time in my life I have seen Request being defined as local variable. You better read and understand about it first.

http://msdn.microsoft.com/en-us/library/system.web.httprequest.aspx

Anyways, you should be able to fix it yourself once you understand how it works. If you still have doubts, get back here and someone will surely help you. Good Luck.

Posted 27-Jul-11 22:13pm

Manas Bhardwaj

Comments

ramuksasi 28-Jul-11 4:20am

sorry Bhardwaj..
i am newer to the .net. And i dont know how to do it. i am learning myself in the way of referring web materials.

Richard MacCutchan · Answer 2 · 2011-07-27T23:21:00

Solution 2

C#

System.Web.HttpRequest Request;
ipaddress =Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

You have defined Request but you have not initialized it, hence your "unassigned variable" message.

Posted 27-Jul-11 23:21pm

Richard MacCutchan