/// <summary>
/// Checks to see if a domain is available for registration asynchronously specifying the specified host, domain to query and the string indicates the domain doesn't exist.
/// </summary>
/// <param name="host">Host of the whois server.</param>
/// <param name="port">Port of the whois server.</param>
/// <param name="domainToQuery">Domain to query.</param>
/// <param name="callBack">Callback function</param>
/// <returns>IAsyncResult object that represents the result of the IsAvailableAsync operation.</returns>
/// <example>
/// <code>
/// [C#]
///
/// WhoIs whoIs = new WhoIs();
/// IAsyncResult state = whoIs.QueryAsync("activeup.com",43,new AsyncCallback(MyCallbackIsAvailable));
///
/// public void MyCallbackIsAvailable(IAsyncResult state)
/// {
/// try
/// {
/// bool result = whoIs.IsAvailableAsyncResult(state);
/// if (result == true)
/// Console.WriteLine("The domain is available for registration.");
/// else
/// Console.WriteLine("The domain is NOT available for registration.");
///
/// }
///
/// catch(WhoisException we)
/// {
/// Console.WriteLine("WhoisException : " + we.Message);
/// }
///
/// catch(Exception ex)
/// {
/// Console.WriteLine("An unhandled exception was thrown : " + ex.Message);
/// }
/// }
///
/// [VB.NET]
///
/// Private whoIs As whoIs = New whoIs()
/// Dim state As IAsyncResult = whoIs.IsAvailableAsync("activeup.com",43, New AsyncCallback(AddressOf MyCallbackIsAvailable))
///
/// Public Sub MyCallbackIsAvailable(ByVal state As IAsyncResult)
///
/// Try
/// Dim result As Boolean = whoIs.IsAvailableAsyncResult(state)
/// If (result = True) Then
/// Console.WriteLine("The domain is available for registration.")
/// Else
/// Console.WriteLine("The domain is NOT available for registration.")
/// End If
///
/// Catch we As WhoisException
/// Console.WriteLine("WhoisException : " + we.Message)
///
/// Catch ex As Exception
/// Console.WriteLine("An unhandled exception was thrown : " + ex.Message)
///
/// End Try
///
/// End Sub
/// </code>
/// </example>
public IAsyncResult IsAvailableAsync(string host, int port, string domainToQuery,AsyncCallback callBack)
{
ServerCollection servers = new ServerCollection();
servers.Add(new Server(host,port));
_isAvailableDelegate = new IsAvailableDelegate(_IsAvailable);
return _isAvailableDelegate.BeginInvoke(servers,domainToQuery,callBack,null);
}
/// <summary>
/// Checks to see if a domain is available for registration asynchronously specifying the specified ServerCollection object and domain to query.
/// </summary>
/// <param name="servers">Collection contening a list of whois server.</param>
/// <param name="domainToQuery">Domain to query.</param>
/// <param name="callBack">Callback function.</param>
/// <returns>IAsyncResult object that represents the result of the IsAvailableAsync operation.</returns>
/// <example>
/// <code>
/// [C#]
///
/// ServerCollection servers = new ServerCollection();
///
/// Server server1 = new Server();
/// server1.Host = "whois.networksolutions.com";
/// server1.Port = 43;
/// server1.Domain = ".com";
/// server1.NoMatch = "no match";
/// servers.Add(server1);
///
/// Server server2 = new Server();
/// server2.Host = "whois.nic.co.uk";
/// server2.Port = 43;
/// server2.Domain = ".co.uk";
/// server2.NoMatch = "no match";
/// servers.Add(server2);
///
/// WhoIs whoIs = new WhoIs();
/// IAsyncResult state = whoIs.QueryAsync(servers,new AsyncCallback(MyCallbackIsAvailable));
///
/// public void MyCallbackIsAvailable(IAsyncResult state)
/// {
/// try
/// {
/// bool result = whoIs.IsAvailableAsyncResult(state);
/// if (result == true)
/// Console.WriteLine("The domain is available for registration.");
/// else
/// Console.WriteLine("The domain is NOT available for registration.");
///
/// }
///
/// catch(WhoisException we)
/// {
/// Console.WriteLine("WhoisException : " + we.Message);
/// }
///
/// catch(Exception ex)
/// {
/// Console.WriteLine("An unhandled exception was thrown : " + ex.Message);
/// }
/// }
///
/// [VB.NET]
///
/// Private whoIs As whoIs = New whoIs()
///
/// Dim server1 As New Server()
/// server1.Host = "whois.networksolutions.com"
/// server1.Port = 43
/// server1.Domain = ".com"
/// server1.NoMatch = "no match"
/// servers.Add(server1)
///
/// Dim server2 As New Server()
/// server2.Host = "whois.nic.co.uk"
/// server2.Port = 43
/// server2.Domain = ".co.uk"
/// server2.NoMatch = "no match"
/// servers.Add(server2)
///
/// Dim state As IAsyncResult = whoIs.IsAvailableAsync(servers,"activeup.com", New AsyncCallback(AddressOf MyCallbackIsAvailable))
///
/// Public Sub MyCallbackIsAvailable(ByVal state As IAsyncResult)
///
/// Try
/// Dim result As Boolean = whoIs.IsAvailableAsyncResult(state)
/// If (result = True) Then
/// Console.WriteLine("The domain is available for registration.")
/// Else
/// Console.WriteLine("The domain is NOT available for registration.")
/// End If
///
/// Catch we As WhoisException
/// Console.WriteLine("WhoisException : " + we.Message)
///
/// Catch ex As Exception
/// Console.WriteLine("An unhandled exception was thrown : " + ex.Message)
///
/// End Try
///
/// End Sub
/// </code>
/// </example>
public IAsyncResult IsAvailableAsync(ServerCollection servers, string domainToQuery,AsyncCallback callBack)
{
_isAvailableDelegate = new IsAvailableDelegate(_IsAvailable);
return _isAvailableDelegate.BeginInvoke(servers,domainToQuery,callBack,null);
}
/// <summary>
/// Checks to see if a domain is available for registration asynchronously specifying the domain to query.
/// </summary>
/// <param name="domainToQuery">Domain to query.</param>
/// <param name="callBack">Callback function</param>
/// <returns>IAsyncResult object that represents the result of the IsAvailableAsync operation.</returns>
/// <example>
/// <code>
/// [C#]
///
/// WhoIs whoIs = new WhoIs();
/// IAsyncResult state = whoIs.QueryAsync("activeup.com",new AsyncCallback(MyCallbackIsAvailable));
///
/// public void MyCallbackIsAvailable(IAsyncResult state)
/// {
/// try
/// {
/// bool result = whoIs.IsAvailableAsyncResult(state);
/// if (result == true)
/// Console.WriteLine("The domain is available for registration.");
/// else
/// Console.WriteLine("The domain is NOT available for registration.");
///
/// }
///
/// catch(WhoisException we)
/// {
/// Console.WriteLine("WhoisException : " + we.Message);
/// }
///
/// catch(Exception ex)
/// {
/// Console.WriteLine("An unhandled exception was thrown : " + ex.Message);
/// }
/// }
///
/// [VB.NET]
///
/// Private whoIs As whoIs = New whoIs()
/// Dim state As IAsyncResult = whoIs.IsAvailableAsync("activeup.com", New AsyncCallback(AddressOf MyCallbackIsAvailable))
///
/// Public Sub MyCallbackIsAvailable(ByVal state As IAsyncResult)
///
/// Try
/// Dim result As Boolean = whoIs.IsAvailableAsyncResult(state)
/// If (result = True) Then
/// Console.WriteLine("The domain is available for registration.")
/// Else
/// Console.WriteLine("The domain is NOT available for registration.")
/// End If
///
/// Catch we As WhoisException
/// Console.WriteLine("WhoisException : " + we.Message)
///
/// Catch ex As Exception
/// Console.WriteLine("An unhandled exception was thrown : " + ex.Message)
///
/// End Try
///
/// End Sub
/// </code>
/// </example>
public IAsyncResult IsAvailableAsync(string domainToQuery,AsyncCallback callBack)
{
_isAvailableDelegate = new IsAvailableDelegate(_IsAvailable);
return _isAvailableDelegate.BeginInvoke(null,domainToQuery,callBack,null);
}
