C# | Uri.CheckHostName(String) Method
Uri.CheckHostName(String) Method is used to determine whether the specified host name is a valid DNS name or not.
Syntax: public static UriHostNameType CheckHostName (string name);
Here, it takes the host name to validate. This can be an IPv4 or IPv6 address or an Internet host name.Return Value: This method returns a UriHostNameType which indicates the type of the host name. If the type of the host name cannot be determined or if the host name is null or a zero-length string, this method returns Unknown.
Below programs illustrate the use of Uri.CheckHostName() Method:
Example 1:
// C# program to demonstrate the // Uri.CheckHostName(string) Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { // Declaring and initializing uri string uri = "www.geeksforgeeks.org"; // using CheckHostName() method UriHostNameType value = Uri.CheckHostName(uri); // Displaying the result Console.WriteLine("Host type is: {0}", value); } } |
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Output:
Host type is: Dns
Example 2:
// C# program to demonstrate the // Uri.CheckHostName(string) Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { // Declaring and initializing uri // using CheckHostName() method UriHostNameType value = Uri.CheckHostName(uri); // Displaying the result Console.WriteLine("Host type is: {0}", value); } } |
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Output:
Host type is: Unknown
Reference:
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