// KEPServerEX: Shows how to write into multiple OPC items using a single method call, and read multiple item values back.
//
// Find all latest examples here: https://www.doc-that.com/files/onlinedocs/OPCLabs-ConnectivityStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-ConnectivityStudio-CSharp .
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using System;
using System.Diagnostics;
using OpcLabs.BaseLib.OperationModel;
using OpcLabs.EasyOpc.DataAccess;
using OpcLabs.EasyOpc.DataAccess.OperationModel;

namespace DocExamples.Specialized
{
    partial class Kepware_KEPServerEX
    {
        public static void WriteMultipleItemValues()
        {
            // Instantiate the client object.
            var client = new EasyDAClient();

            Console.WriteLine("Writing multiple item values...");
            OperationResult[] resultArray = client.WriteMultipleItemValues(
                new[] { 
                    new DAItemValueArguments(
                        "Kepware.KEPServerEX.V6", 
                        "Data Type Examples.16 Bit Device.K Registers.Long1", 
                        12345),
                    new DAItemValueArguments(
                        "Kepware.KEPServerEX.V6",
                        "Data Type Examples.16 Bit Device.K Registers.Boolean1",
                        true),
                    new DAItemValueArguments(
                        "Kepware.KEPServerEX.V6",
                        "Data Type Examples.16 Bit Device.K Registers.Double1",
                        234.56),
                    new DAItemValueArguments("Kepware.KEPServerEX.V6",
                        "Data Type Examples.16 Bit Device.S Registers.String1",
                        "ABC")
                });
            
            for (int i = 0; i < resultArray.Length; i++)
            {
                Debug.Assert(resultArray[i] != null);
                if (resultArray[i].Succeeded)
                    Console.WriteLine("Result {0}: success", i);
                else
                {
                    Debug.Assert(!(resultArray[i].Exception is null));
                    Console.WriteLine("Result {0} *** Failure: {1}", i, resultArray[i].ErrorMessageBrief);
                }
            }
        }
    }
}