Hey I am trying to build this application, but I am having trouble as error messages keep appearing. Using Visual Studio 2008...
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using Opc;
using OpcCom;
using Opc.Da;
using Opc.Hda;
namespace ConsoleApplication3
{
class Program
{
public static void Main()
{
Run();
}
public static void Run()
{
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = @"C:\PCHE App1\Destination\";
string sourcePath = System.Configuration.ConfigurationSettings.AppSettings["DestDir"];
string what = System.Configuration.ConfigurationSettings.AppSettings["FileSearch"];
watcher.Path = sourcePath;
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
// Only watch text files.
watcher.Filter = what;
// Add event handlers.
watcher.Created += new FileSystemEventHandler(OnChanged);
// Begin watching.
watcher.EnableRaisingEvents = true;
// Wait for the user to quit the program.
Console.WriteLine("Press \'q\' to quit the sample.");
while (Console.Read() != 'q') ;
}
// Define the event handlers.
private static void OnChanged(object source, FileSystemEventArgs f)
{
string where = System.Configuration.ConfigurationSettings.AppSettings["DESTINATION"];
File.Delete(f.FullPath);
DirectoryInfo dr = new DirectoryInfo(Path.GetDirectoryName(f.FullPath));
FileInfo[] files1 = dr.GetFiles("*.*");
foreach (FileInfo file in files1)
{
try
{
using (FileStream fs = new FileStream(file.FullName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (StreamReader sr = new StreamReader(fs))
{
using (StreamWriter sw = new StreamWriter(where,true))
{
// Read and display lines from the file until the end of
// the file is reached.
String line;
while ((line = sr.ReadLine()) != null)
{
sw.WriteLine(line);
}
Console.WriteLine("file: " + file.Name + " FINISHED");
}
}
}
DataTransfer();
}
catch (Exception e)
{
// Let the user know what went wrong.
Console.WriteLine("The file could not be read:");
Console.WriteLine("File: " + f.FullPath + " " + f.ChangeType);
Console.WriteLine("File: " + f.Name);
Console.WriteLine("Folder:" + Path.GetDirectoryName(f.FullPath));
Console.WriteLine(e.Message);
continue;
}
}
}
private static void DataTransfer()
{
Opc.URL url = new URL(ConfigurationManager.AppSettings["serverURL "]);
Opc.Da.Quality quality = Opc.Da.Quality.Good;
Console.Out.Write("Creating new local DA server instance for {0} ... ", ConfigurationManager.AppSettings["serverURL"]);
Opc.Da.Server server = new Opc.Da.Server(new OpcCom.Factory(), url);
Console.Out.WriteLine("OK");
Console.Out.Write("Connecting to remote server ... ");
server.Connect();
Console.Out.WriteLine("OK");
log.Debug("Values After Execution\n");
log.Debug(" ");
(Console.Out.Write("Creating new item value ... "));
Opc.Da.ItemValue val = new Opc.Da.ItemValue("TICA20033_SP");
val.Timestamp = DateTime.UtcNow;
val.Value = 123;
val.Quality = quality;
Console.Out.WriteLine("OK");
Console.Out.Write("Writing value to remote server ... ");
Opc.IdentifiedResult[] result = server.Write(new Opc.Da.ItemValue[] { val });
if (result.Length > 0)
{
Console.Out.WriteLine(result[0].ResultID);
}
else
Console.Out.WriteLine("OK");
index++;
Console.Out.WriteLine("Updated values for well: " + wellName);
log.Info("Updated values for well: " + wellName);
index = 0;
//}
Console.Out.Write("Disconnecting from remote server ... ");
server.Disconnect();
Console.Out.WriteLine("OK");
Console.Out.Write("Disposing of local server instance ... ");
server.Dispose();
Console.Out.WriteLine("OK");
}
}
}The error messages that I get are: the name "configuration manager/log/index/wellname" does not exist in the current context.
Also: "only assignment, call, increment, decrement, and new object expressions can be used as a statement."
I get 3 warning messages, all saying the same thing:
Could not resolve this reference. Could not locate the assembly "Interop.Excel/Interop.VBIDE/log4net". Check to make sure the assembly exists on disk. If this reference is not required by your code, you may get compilation errors."
PLEASE HELP :S
