Solved

SWbemObject.GetObjectText_ C# Equivilent?

Posted on 2011-03-17
2
621 Views
Last Modified: 2013-12-17
Hi,

Is there an equivilent to the following object:

http://msdn.microsoft.com/en-us/library/aa393775%28v=vs.85%29.aspx
SWbemObject.GetObjectText_ Method



So in VBScript this would output something like:

' ----- Script start ------

Option Explicit
Dim objWMIService, objItem, colItems, strComputer

On Error Resume Next
strComputer = "."

Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * from Win32_LogicalDisk")

For Each objItem in colItems
      WScript.Echo objItem.getObjectText_
Next

WSCript.Quit

' ----- Script end ------------



instance of Win32_LogicalDisk
{
      Access = 0;
      Caption = "C:";
      Compressed = FALSE;
      CreationClassName = "Win32_LogicalDisk";
      Description = "Local Fixed Disk";
      DeviceID = "C:";
      DriveType = 3;
      FileSystem = "NTFS";
      FreeSpace = "27016232960";
      MaximumComponentLength = 255;
      MediaType = 12;
      Name = "C:";
      QuotasDisabled = TRUE;
      QuotasIncomplete = FALSE;
      QuotasRebuilding = FALSE;
      Size = "53684989952";
      SupportsDiskQuotas = TRUE;
      SupportsFileBasedCompression = TRUE;
      SystemCreationClassName = "Win32_ComputerSystem";
      SystemName = "LEVEL3";
      VolumeDirty = FALSE;
      VolumeName = "OS";
      VolumeSerialNumber = "8CBC64AB";
};


So it would format the text like it does using WbemTest.


So I am looking for the C# equivilent of:

WScript.Echo objItem.getObjectText_


Thanks,

Ward.

0
Comment
Question by:whorsfall
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 19

Expert Comment

by:Shahan Ayyub
ID: 35168407
Hi!

Did you check this link: (ManagementObjectSearcher Class)
http://www.codeproject.com/KB/system/DeviceStatus.aspx
0
 
LVL 96

Accepted Solution

by:
Bob Learned earned 500 total points
ID: 35175163
Here is an example that I use to show WMI query in C#:

//Add a reference to System.Management.dll to the project.

using System;
using System.Management;
using System.Collections.Generic;

namespace CSharp.CodeSnippet.WMI
{

    public class Win32_LogicalDisk : BaseWmiObject<Win32_LogicalDisk>
    {

        public enum DiskType
        {
            Unknown,
            NoRootDirectory,
            Removable,
            Local,
            Network,
            CD,
            RAM
        }

        public string Name;
        public long Freespace;
        public long Size;
        public DiskType DriveType;
        public string VolumeName;
        public string VolumeSerialNumber;

        public Win32_LogicalDisk(ManagementObject managementObject)
            : base(managementObject)
        {
        }

        public Win32_LogicalDisk()
        {
        }

        /// <summary>
        /// Get drive volumes using a WMI query.
        /// </summary>
        public List<Win32_LogicalDisk> GetList()
        {
            return base.ExecuteQuery();
        }

        /// <summary>
        /// Get drive volumes using a WMI query on a remote machine.
        /// </summary>
        public List<Win32_LogicalDisk> GetList(string machineName, string userName, string password)
        {
            return base.ExecuteQuery(machineName, userName, password);
        }

    }

}

Open in new window


Base class:

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Management;
using System.Reflection;

namespace CSharp.CodeSnippet.WMI
{

    public class BaseWmiObject<T> where T : class
    {

        public BaseWmiObject(ManagementObject managementObject)
        {
            this.ManagementObject = managementObject;
        }

        public BaseWmiObject()
        {               
        }

        internal ManagementObject ManagementObject { get; private set; }

        private void ConfigureScope(ManagementObjectSearcher searcher, string machineName, string userName, string password)
        {
            if (userName != null && password != null && userName.Trim().Length > 0 && userName.Trim().Length > 0)
            {
                ManagementPath path = new ManagementPath();

                if (machineName != ".")
                    path.Server = string.Format(@"\\{0}\root\cimv2", machineName.TrimStart('\\'));

                ConnectionOptions options = new ConnectionOptions();
                options.Username = userName;
                options.Password = password;

                ManagementScope scope = new ManagementScope(path, options);

                searcher.Scope = scope;
            }
        }


        protected List<T> ExecuteQuery()
        {
            return ExecuteQuery(null, null, null);
        }

        protected List<T> ExecuteQuery(string machineName, string userName, string password)
        {
            string query = "Select * From " + this.GetType().Name;

            ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);

            // If machine name, user name, and password are passed, configure the scope to execute the query on the remote machine.
            if (!string.IsNullOrEmpty(machineName))
            {
                this.ConfigureScope(searcher, machineName, userName, password);
            }

            List<T> list = new List<T>();

            // Execute the query to get all the WMI objects.
            ManagementObjectCollection result = searcher.Get();

            // Build a list of type-specific objects.
            foreach (ManagementObject obj in result)
            {
                T entry = (T) Activator.CreateInstance(this.GetType(), obj);

                // Get all the public fields.
                FieldInfo[] fieldList = this.GetType().GetFields();

                foreach (FieldInfo field in fieldList)
                    field.SetValue(entry, ConvertValue(obj[field.Name], field.FieldType));

                list.Add(entry);
            }
            return list;
        }

        protected object InvokeMethod(params object[] parameters)
        {
            // Reflect the method to call from the caller's name.
            StackFrame sf = new StackFrame(1);
            string method = sf.GetMethod().Name;

            return this.ManagementObject.InvokeMethod(method, parameters);
        }

        protected object ConvertValue(object value, Type type)
        {
            if (value != null)
            {
                if (type == typeof(DateTime))
                {
                    string time = value.ToString();
                    time = time.Substring(0, time.IndexOf("."));
                    return DateTime.ParseExact(time, "yyyyMMddHHmmss", null);
                }
                else if (type == typeof(long))
                    return Convert.ToInt64(value);
                else if (type == typeof(int))
                    return Convert.ToInt32(value);
                else if (type == typeof(short))
                    return Convert.ToInt16(value);
                else if (type == typeof(string))
                    return value.ToString();
                else if (type.BaseType == typeof(Enum))
                    return value;
            }
            return null;
        }

    }

}

Open in new window

0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question