Hello everybody.

I want to make a little programme to show the network availability
status. I read that I had to use
Microsoft.VisualBasic.Devices, creat a delegate to manage the event.

Here is the code that I made but of course it dosn't work

namespace WindowsApplication2
{
 public delegate void MyApplication_NetworkAvailabilityChanged(object
sender, Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs e);

 partial class Form1
 {
   /// <summary>
   /// Required designer variable.
   /// </summary>
   private System.ComponentModel.IContainer components = null;

   /// <summary>
   /// Clean up any resources being used.
   /// </summary>
   /// <param name="disposing">true if managed resources should be
disposed; otherwise, false.</param>
   protected override void Dispose(bool disposing)
   {
     if (disposing && (components != null))
     {
       components.Dispose();
     }
     base.Dispose(disposing);
   }

   #region Windows Form Designer generated code

   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {
     this.button1 = new System.Windows.Forms.Button();
     this.label1 = new System.Windows.Forms.Label();
     this.SuspendLayout();
     //
     // button1
     //
     this.button1.Location = new System.Drawing.Point(92, 64);
     this.button1.Name = "button1";
     this.button1.Size = new System.Drawing.Size(125, 62);
     this.button1.TabIndex = 0;
     this.button1.Text = "button1";
     this.button1.UseVisualStyleBackColor = true;
     //
     // label1
     //
     this.label1.AutoSize = true;
     this.label1.Location = new System.Drawing.Point(56, 185);
     this.label1.Name = "label1";
     this.label1.Size = new System.Drawing.Size(35, 13);
     this.label1.TabIndex = 1;
     this.label1.Text = "label1";
     //
     // Form1
     //
     this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Controls.Add(this.label1);
     this.Controls.Add(this.button1);
     this.Name = "Form1";
     this.Text = "Form1";
     this.ResumeLayout(false);
     this.PerformLayout();

     //
     // Network availability
     //
     this.netwatch = new NetworkWatching();
     this.netwatch.AvChange += new
MyApplication_NetworkAvailabilityChanged(this.netwat_AvChange);

   }

   #endregion

   private System.Windows.Forms.Button button1;
   private NetworkWatching netwatch;
   private System.Windows.Forms.Label label1;
 }

 class NetworkWatching
 {
   public event MyApplication_NetworkAvailabilityChanged AvChange;
 }
}

this is in the Form1.Designer.cs

In the Form1.cs I added :

   private void DisplayAvail(string avail)
   {
     label1.Text = avail;
   }

   void netwat_AvChange(object sender,
Microsoft.VisualBasic.Devices.NetworkAvailableEventArgs e)
   {
     this.DisplayAvail(e.IsNetworkAvailable.ToString());
   }

Any idea what i have to do to make what i want ? I now that probably I
miss a conceptual clarification.

Anyway, thx a lot for the help