Microsoft.Data.Tools.TdsLib 0.2.2089.23

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dotnet add package Microsoft.Data.Tools.TdsLib --version 0.2.2089.23
NuGet\Install-Package Microsoft.Data.Tools.TdsLib -Version 0.2.2089.23
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Microsoft.Data.Tools.TdsLib" Version="0.2.2089.23" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Microsoft.Data.Tools.TdsLib --version 0.2.2089.23
#r "nuget: Microsoft.Data.Tools.TdsLib, 0.2.2089.23"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Microsoft.Data.Tools.TdsLib as a Cake Addin
#addin nuget:?package=Microsoft.Data.Tools.TdsLib&version=0.2.2089.23

// Install Microsoft.Data.Tools.TdsLib as a Cake Tool
#tool nuget:?package=Microsoft.Data.Tools.TdsLib&version=0.2.2089.23


Open implementation of the TDS protocol (version 7.4) in managed C# code. It is not a full implementation, current support is focused on the login steps and some generic TDS features. It does not support normal data streams or T-SQL commands.

This library is mainly used for probing and for diagnosing TDS connections but can be used to manually construct and handle any step of a TDS connection. It can also be used to mock TDS clients.


Establish a TDS connection and login to a SQL server

using Microsoft.Data.Tools.TdsLib;
using Microsoft.Data.Tools.TdsLib.IO.Connection.Tcp;
using Microsoft.Data.Tools.TdsLib.Messages;
using Microsoft.Data.Tools.TdsLib.Packets;
using Microsoft.Data.Tools.TdsLib.Payloads.Login7;
using Microsoft.Data.Tools.TdsLib.Payloads.PreLogin;
using Microsoft.Data.Tools.TdsLib.Tokens.Error;

string hostname = "";
int port = 1433;

using TdsClient client = new TdsClient(new TcpServerEndpoint(hostname, port));

// Send PreLogin message
await client.MessageHandler.SendMessage(new Message(PacketType.PreLogin)
    Payload = new PreLoginPayload(encrypt: true)

// Receive PreLogin message
var preLoginResponseMessage = await client.MessageHandler.ReceiveMessage(b => new PreLoginPayload(b));

// Perform TLS handshake
await client.PerformTlsHandshake();

// Prepare Login7 message
Login7Payload login7Payload = new Login7Payload()
    Hostname = hostname,
    ServerName = "MyServerName",
    AppName = "MyAppName",
    Language = "us_english",
    Database = "MyDatabaseName",

login7Payload.TypeFlags.AccessIntent = OptionAccessIntent.ReadWrite;

Message login7Message = new Message(PacketType.Login7) { Payload = login7Payload };

// Send Login7 message
await client.MessageHandler.SendMessage(login7Message);

// Receive Login response tokens
await client.TokenStreamHandler.ReceiveTokensAsync(tokenEvent =>
    if (tokenEvent.Token is ErrorToken errorToken)
        // Error was received from the server

// If no error token was received, and SQL server did not close the connection, then the connection to the server is now established and the user is logged in.
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • .NETStandard 2.0

    • No dependencies.

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Version Downloads Last updated
0.2.2089.23 1,501 9/21/2022