check internet connection + internet speed

check internet connection + internet speed

• Ben Jensen

  this is windows application not web

  
  
  

• Carlos Pirulo

  You can start a web application also locally from PC. It is not necessary to upload (deploy) the web application on host servers.

  For a windows application you need internet access only for database connections on host servers.
  

• Dan Fort

  hi you can do that..for cheaking internet connection:

  [DllImport("wininet.dll")]

  private static extern bool InternetGetConnectedState(ref uint connected, uint reserved);

  static uint uConnection = 0x20;

  /// <summary>

  /// Returns true if it have detected an active Internet connection.

  /// </summary>

  public static bool HasInternetConnection

  {

  get { return InternetGetConnectedState(ref uConnection, 0); }

  }

  
  
  

• RafSalas

  Add a new database connection

  Navigation

  Menu bar a View a Server Explorer aData Conections a Right mouse keyaAdd Connection

  Test a database connection

  Navigation

  Menu bar a View a Server Explorer aselect a database a Right mouse keyaModify Connection

  Have a fun!

  Valentin

  MCP C#

  Do not hesitate to contact me!

  www.wwv-it.eu

  valentin.welter@t-online.de

  
  

• Sergey Kartashov

  i am talking about checking it by code not throught IDE!!

  
  
  

• Vp13r5

  I will send you later the code
  

• Shai Zohar - FXM

  To check the internet access:

  Response.Redirect (“http://....”);

  About the speed connection I will try to find somewhat out. Maybe later.

  Have a fun!

  Valentin

  MCP C#

  Do not hesitate to contact me!

  www.wwv-it.eu

  valentin.welter@t-online.de

  
  

• Andy_iKt

  using System;

  using System.Drawing;

  using System.Collections;

  using System.ComponentModel;

  using System.Windows.Forms;

  using System.Data;

  namespace WinTestDatabaseConnection

  {

  /// <summary>

  /// Zusammenfassung fur Form1.

  /// </summary>

  public class Form1 : System.Windows.Forms.Form

  {

  private System.Windows.Forms.Button TestConnection;

  private System.Windows.Forms.TextBox textBox1;

  private System.Windows.Forms.TextBox textBox2;

  private System.Data.SqlClient.SqlConnection sqlConnection1;

  private System.Windows.Forms.Label label1;

  /// <summary>

  /// Erforderliche Designervariable.

  /// </summary>

  private System.ComponentModel.Container components = null;

  public Form1()

  {

  //

  // Erforderlich fur die Windows Form-Designerunterstutzung

  //

  InitializeComponent();

  //

  // TODO: Fugen Sie den Konstruktorcode nach dem Aufruf von InitializeComponent hinzu

  //

  }

  /// <summary>

  /// Die verwendeten Ressourcen bereinigen.

  /// </summary>

  protected override void Dispose( bool disposing )

  {

  if( disposing )

  {

  if (components != null)

  {

  components.Dispose();

  }

  }

  base.Dispose( disposing );

  }

  #region Vom Windows Form-Designer generierter Code

  /// <summary>

  /// Erforderliche Methode fur die Designerunterstutzung.

  /// Der Inhalt der Methode darf nicht mit dem Code-Editor geandert werden.

  /// </summary>

  private void InitializeComponent()

  {

  this.TestConnection = new System.Windows.Forms.Button();

  this.textBox1 = new System.Windows.Forms.TextBox();

  this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();

  this.textBox2 = new System.Windows.Forms.TextBox();

  this.label1 = new System.Windows.Forms.Label();

  this.SuspendLayout();

  //

  // TestConnection

  //

  this.TestConnection.Location = new System.Drawing.Point(256, 152);

  this.TestConnection.Name = "TestConnection";

  this.TestConnection.Size = new System.Drawing.Size(120, 23);

  this.TestConnection.TabIndex = 0;

  this.TestConnection.Text = "Test Connection";

  this.TestConnection.Click += new System.EventHandler(this.TestConnection_Click);

  //

  // sqlConnection1

  //

  this.sqlConnection1.ConnectionString = "workstation id=\"...\";packet size=4096;user id=...;password=...;da" +

  "ta source=\"...\";persist security info=False;initial catalog=" +

  "...";

  //

  // textBox1

  //

  this.textBox1.Location = new System.Drawing.Point(24, 48);

  this.textBox1.Multiline = true;

  this.textBox1.Name = "textBox1";

  this.textBox1.Size = new System.Drawing.Size(696, 48);

  this.textBox1.TabIndex = 1;

  this.textBox1.Text = this.sqlConnection1.ConnectionString;

  //

  // textBox2

  //

  this.textBox2.Location = new System.Drawing.Point(224, 200);

  this.textBox2.Name = "textBox2";

  this.textBox2.ReadOnly = true;

  this.textBox2.Size = new System.Drawing.Size(200, 20);

  this.textBox2.TabIndex = 2;

  this.textBox2.Text = "";

  //

  // label1

  //

  this.label1.Location = new System.Drawing.Point(32, 16);

  this.label1.Name = "label1";

  this.label1.Size = new System.Drawing.Size(296, 23);

  this.label1.TabIndex = 3;

  this.label1.Text = "Enter connection string. Default : initial connection string";

  //

  // Form1

  //

  this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

  this.ClientSize = new System.Drawing.Size(744, 302);

  this.Controls.Add(this.label1);

  this.Controls.Add(this.textBox2);

  this.Controls.Add(this.textBox1);

  this.Controls.Add(this.TestConnection);

  this.Name = "Form1";

  this.Text = "Form1";

  this.ResumeLayout(false);

  }

  #endregion

  /// <summary>

  /// Der Haupteinstiegspunkt fur die Anwendung.

  /// </summary>

  [STAThread]

  static void Main()

  {

  Application.Run(new Form1());

  }

  private void TestConnection_Click(object sender, System.EventArgs e)

  {

  try

  {

  if (textBox1.Text.Length != 0)

  this.sqlConnection1.ConnectionString = textBox1.Text;

  else

  textBox1.Text = this.sqlConnection1.ConnectionString;

  }

  catch

  {

  textBox2.Text = "Invalid connection string";

  return;

  }

  try

  {

  sqlConnection1.Open();

  textBox2.Text = "Connection established";

  }

  catch (System.Exception ex)

  {

  textBox2.Text = "Connection failed";

  }

  finally

  {

  sqlConnection1.Close ();

  }

  }

  }

  }

  
  

• CiNN

  and that's what i have

  a windows application accessin a database on remote server via internet and i need to check before connecting that internet connection is available.

  
  
  
• check internet connection + internet speed