// This example shows how to use the IDisposable interface to automatically stop the OPC UA server. // You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server. // // Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html . // OPC client, server and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-OPCStudio-CSharp . // Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own // a commercial license in order to use Online Forums, and we reply to every post. using System; using OpcLabs.EasyOpc.UA; using OpcLabs.EasyOpc.UA.NodeSpace; namespace UAServerDocExamples._EasyUAServer { class Dispose { public static void Main1() { // Instantiate the server object. // By default, the server will run on endpoint URL "opc.tcp://localhost:48040/". // // The "using" statement ensures disposal of the resource it acquires. using (var server = new EasyUAServer()) { // Define a data variable providing random integers. var random = new Random(); server.Add(new UADataVariable("MyDataVariable").ReadValueFunction(() => random.Next())); // Start the server. Console.WriteLine("The server is starting..."); server.Start(); Console.WriteLine("The server is started."); Console.WriteLine(); // Let the user decide when to stop. Console.WriteLine("Press Enter to stop the server..."); Console.ReadLine(); // The IDisposable.Dispose call (automatically made at the end of the "using" statement) stops the // EasyUAServer if it is started. Console.WriteLine("The server is stopping..."); } Console.WriteLine("The server is stopped."); } } }
' This example shows how to use the IDisposable interface to automatically stop the OPC UA server. ' You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server. ' ' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html . ' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET . ' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own ' a commercial license in order to use Online Forums, and we reply to every post. Imports System Imports OpcLabs.EasyOpc.AlarmsAndEvents Imports OpcLabs.EasyOpc.UA Imports OpcLabs.EasyOpc.UA.NodeSpace Namespace _EasyUAServer Partial Friend Class Dispose Shared Sub Main1() ' Instantiate the server object. ' By default, the server will run on endpoint URL "opc.tcp://localhost:48040/". ' ' The "Using" statement ensures disposal of the resource it acquires. Using server = New EasyUAServer() ' Define a data variable providing random integers. Dim random = New Random() server.Add(New UADataVariable("MyDataVariable").ReadValueFunction(Function() random.Next())) ' Start the server. Console.WriteLine("The server is starting...") server.Start() Console.WriteLine("The server is started.") Console.WriteLine() ' Let the user decide when to stop. Console.WriteLine("Press Enter to stop the server...") Console.ReadLine() ' The IDisposable.Dispose call (automatically made at the end of the "using" statement) stops the ' EasyUAServer if it is started. Console.WriteLine("The server is stopping...") End Using End Sub End Class End Namespace
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