https://wiki.plecko.hr/ 2026-05-09T16:34:04+00:00 https://wiki.plecko.hr/ https://wiki.plecko.hr/lib/tpl/bootstrap3/images/favicon.ico text/html 2021-05-19T12:17:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:byte_to_bin_and_vice_versa&rev=1621419423&do=diff C# Converting byte to binary string and vice versa string a = Convert.ToString(value, 2).PadLeft(8, '0'); // Convert byte (value) to binary string byte a = Convert.ToByte(NewFlags, 2); // Convert binary string to byte text/html 2021-05-20T20:22:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:converting_bytes&rev=1621534940&do=diff C# Reading from and writing to byte array Byte[] ByteName = new Byte[101]; // Declare bytearray Buffer.BlockCopy(bytes, 0, ByteName, 0, 101); // Copy part of byte array (bytes) to ByteName string Name = Encoding.UTF8.GetString(ByteName).TrimEnd('\0'); // Convert to string, and trim bytes[100] // UInt8 on location 100 BitConverter.ToUInt16(bytes, 101); // UInt16 on location 101 (has length 2 bytes) BitConverte… text/html 2021-09-14T15:07:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:create_zip&rev=1631624857&do=diff Create zip archive in C# .NET Core 5 using SaveFileDialog sfd = new() { Filter = "Zip archive|*.zip", Title = "Save zip file", AddExtension = true, DefaultExt = ".zip" }; sfd.ShowDialog(); if (sfd.FileName != "") { using var memoryStream = new MemoryStream(); using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true)) { using var entryStreamFileDB = archive.CreateEntry("file.ext").Open(); using StreamWriter streamWriterDB = new(entryStreamFileD… text/html 2021-05-27T13:53:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:lists_and_dictionaries&rev=1622116414&do=diff C# lists and dictionaries // List List<string> list = new(); list.add("alpha"); list.add("beta"); if (list.Contains("alpha")) { } list.ForEach(delegate(String val) { val; }); list.Remove("alpha"); // Dictionary Dictionary<string, UInt16> dict = new(); dict["alpha"] = 1; dict["beta"] = 2; if (dict.ContainsKey("alpha")) { } foreach (KeyValuePair<string, UInt16> entry in [dictionary]) { entry.Key; entry.Value; } dict.Remove("alpha"); text/html 2022-04-21T13:27:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:marshaling&rev=1650540440&do=diff C# Marshaling - write bytes to struct and vice versa [StructLayout(LayoutKind.Sequential, Pack = 1)] public struct MyStructure { [MarshalAs(UnmanagedType.ByValArray, SizeConst = 101)] public char[] Name; public UInt16 Port; public byte Num; public byte Max; public UInt64 Version; public byte TOD; public byte Avg; public byte Flags; [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public char[] Key; } public static MyStructure BytesToMyStructure(… text/html 2021-05-19T12:23:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:multithreaded_tcp_listener&rev=1621419787&do=diff Multithreaded TCP listener in C# static TcpListener server; Int32 port = 8889; IPAddress localAddr = IPAddress.Parse("0.0.0.0"); server = new TcpListener(localAddr, port); ThreadPool.QueueUserWorkItem(ConnectionServer, server); private static void ConnectionServer(object obj) { var server = (TcpListener)obj; try { server.Start(); while (true) { TcpClient tcpclient = server.AcceptTcpClient(); ThreadPool.QueueUserWorkItem(ConnectionProcessor, tcpclient); } } … text/html 2021-09-13T07:31:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:password_masking&rev=1631511089&do=diff Efficient password string masking return string.Create(clearValue.Length, clearValue, (span, value) => { value.AsSpan().CopyTo(span): span[3..].Fill('*'); }); text/html 2021-05-19T12:05:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:start&rev=1621418743&do=diff C# * C# Converting byte to binary string and vice versa * C# lists and dictionaries * C# Marshaling - write bytes to struct and vice versa * C# Reading from and writing to byte array * Create zip archive in C# .NET Core 5 * Efficient password string masking * Multithreaded TCP listener in C# * Threadpool text/html 2021-06-02T11:32:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.plecko.hr/doku.php?id=development:csharp:threadpool&rev=1622626349&do=diff Threadpool private static aaa() { ThreadPool.QueueUserWorkItem(threadWorker,this); } private static void threadWorker(object obj) { Form1 f = (Form1)obj; { if (f.comboFrom.InvokeRequired) { f.comboFrom.Invoke(new ComboAddThreadSafeDelegate(ComboAddThreadSafe), f, ComboItem); } } } private delegate void ComboAddThreadSafeDelegate(Form1 f, String val); private static void ComboAddThreadSafe(Form1 f, String val) { f.comboFrom.Items.Add(va…