Visual Studio Hacks

Access Performance Counters #73

Chapter 9, Server Explorer Hacks

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301

HACK

this.Controls.Add(this.label2);

this.Controls.Add(this.label1);

this.Name = "PerfCounterExample";

this.Text = "PerfCounterExample";

this.Load +=

new System.EventHandler(this.PerfCounterExample_Load);

((System.ComponentModel.ISupportInitialize)

(this.performanceCounter1)).EndInit( );

this.ResumeLayout(false);

}

#endregion

private void PerfCounterExample_Load(

object sender,

System.EventArgs e)

{

//Get the value of the performance counter

label2.Text = performanceCounter1.NextValue( ).ToString( );

}

}

}

When you run this code, it will produce the form shown in Figure 9-4.

Counter Information

You can view additional information about counters by right-clicking on a

category and clicking the View Category menu item. This will display the

Performance Counter Builder form (Figure 9-5), which includes a descrip-

tion of the category as well as a list of all the performance counters in that

category. Click on a performance counter and you will be shown a descrip-

tion of it. This is a great way to investigate the counters in each category and

what they report on.

The Server Explorer makes it easy to browse all the performance counters on

your machine and then access them in your application.

Figure 9-4. PerfCounter Example form