ASP.NET C# capitalize the first letter of a string

using System.Globalization;
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string ManipulatedString= CultureInfo.CurrentCulture.TextInfo.ToTitleCase("OriginalString");

How to retrieve visitor's IP in C# ASP.NET 2.0

string strHostName = System.Net.Dns.GetHostName();
string clientIPAddress = System.Net.Dns.GetHostAddresses(strHostName).GetValue(0).ToString();
return clientIPAddress;