The following example demonstrates an instance of the MonitoringObjectCriteria class.

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.EnterpriseManagement.Configuration;
using Microsoft.EnterpriseManagement.Common;
using Microsoft.EnterpriseManagement.Configuration.IO;
using Microsoft.EnterpriseManagement;
using System.Collections.ObjectModel;
using Microsoft.EnterpriseManagement.Administration;
using Microsoft.EnterpriseManagement.Monitoring;

namespace SDKSamples
{
	class Program
	{
		static void Main(string[] args)
		{
			ManagementGroup mg = new ManagementGroup("localhost");
			ManagementPackClass computerMonitoringClass = mg.EntityTypes.GetClass(SystemMonitoringClass.WindowsComputer);
			EnterpriseManagementObjectCriteria criteria = new EnterpriseManagementObjectCriteria(string.Format("HealthState='{0}'", (int)HealthState.Error), computerMonitoringClass);

			List<MonitoringObject> monitoringObjects = new List<MonitoringObject>();
			IObjectReader<MonitoringObject> reader = mg.EntityObjects.GetObjectReader<MonitoringObject>(criteria, ObjectQueryOptions.Default);
			monitoringObjects.AddRange(reader);

			foreach (MonitoringObject monitoringObject in monitoringObjects)
			{
				Console.WriteLine("Object Name: {0}", monitoringObject.DisplayName);
				Console.WriteLine("In Error State since: {0}", monitoringObject.StateLastModified.Value.ToLocalTime().ToString());
		}
	}
}
}

You can get a list of the property names that can be used in the criteria expression by using the GetValidPropertyNames method. For information about the criteria expression syntax, see Criteria Expression Syntax.

Development Platforms

Target Platforms