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what is the use of System.Diagnostics namespace classes

Posted By:      Posted Date: September 26, 2010    Points: 0   Category :ASP.Net


what is the use of  System.Diagnostics namespace classes

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what is the use of System.System.Diagnostics namespace classes

what is the use of  System.System.Diagnostics namespace classes

Performance Tests: Precise Run Time Measurements with System.Diagnostics.Stopwatch

Everybody who does performance optimization stumbles sooner or later over the Stopwatch class in the System.Diagnostics namespace. And everybody has noticed that the measurements of the same function on the same computer can differ 25% -30% in run time. This article shows how single threaded test programs must be designed to get an accuracy of 0.1% - 0.2% out of the Stopwatch class. With this accuracy, algorithms can be tested and compared.

Advanced Basics: Monitor Your Apps with System.Diagnostics


It never fails. The application you just deployed ran great on your development machine-but stumbles in production. The problem might show up right away or maybe it creeps up over time. Now what?

Brad McCabe

MSDN Magazine July 2006

CLR Inside Out: Extending System.Diagnostics


The System. Diagnostics namespace in the Microsoft® . NET Framework contains powerful tracing capabilities. This includes the main tracing API: TraceSource. As you will see, the tracing APIs in System.

Krzysztof Cwalina

MSDN Magazine April 2006

What happened to the backup and restore classes in namespace Microsoft.SqlServer.Management.Smo vers

I do not see these two classes in version 10 of this namespace and I am not finding any documentation explaining what happened to them.

The type or namespace name 'Linq' does not exist in the namespace 'System'

Hi, I uploaded my website to the server, and I have there a working with wcf - it should be fw 3.5 I saw that fw 3.5 is installed on the server and also we have there fw 3.0 sp1. I run my website : www.qenglishcenter.com and I'm getting an error : The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) shouldn't System.linq be already existed ? Thanks for any reply.  

Issue on System.Diagnostics.Process output

I am getting the following error message System.InvalidOperationException: StandardOut has not been redirected or the process hasn't started yet. for the below code which has to displays the Output of the command prompt command: Process p = new Process(); string result = ""; p.StartInfo.WorkingDirectory = "C:\\WINDOWS\\system32"; p.StartInfo.FileName = "cmd.exe"; p.StartInfo.UseShellExecute = false; p.StartInfo.CreateNoWindow = true; p.StartInfo.RedirectStandardInput = true; p.StartInfo.RedirectStandardOutput = true; p.StartInfo.Arguments = "/C ipconfig"; StreamReader stdOut = p.StandardOutput; p.WaitForExit(); p.Start(); result = stdOut.ReadToEnd(); if (!p.HasExited) { p.Kill(); } stdOut.Close(); p.Close(); Response.Write(result); System.Threading.Thread.Sleep(5000); Please help guys. Is I am doing correct. 

System.Diagnostics.Process.Start not work with IIS, but on ASP.NET Development Server

System.Diagnostics.Process.Start not work with IIS, but on ASP.NET Development Server 

Exception in System.Diagnostics.EventLog.get_EntryCount()

Hello,I am having an really weird exception which seems to originate in the BCL since the call stack does not show any of my code.Application is an event log processing service which uses the EntryWritten event of the System.Diagnostics.Eventlog class.The exceptions call stack is as follows:[System]System.ComponentModel.Win32ExceptionInterface unknownat System.Diagnostics.EventLogget_EntryCount()at System.Diagnostics.EventLogCompletionCallback(Object context)at System.Diagnostics.EventLogStaticCompletionCallback(Object context, Boolean wasSignaled)at System.Threading._ThreadPoolWaitOrTimerCallbackWaitOrTimerCallback_Context(Object state, Boolean timedOut)at System.Threading._ThreadPoolWaitOrTimerCallbackWaitOrTimerCallback_Context_f(Object state)at System.Threading.ExecutionContextRun(ExecutionContext executionContext, ContextCallback callback, Object state)at System.Threading._ThreadPoolWaitOrTimerCallbackPerformWaitOrTimerCallback(Object state, Boolean timedOut)Thats it. No sign of my own code. Yet, this happens like once or twice a day only, and ONLY on a Windows Vista SP1 installation. Anybody has any ideas whats that where it comes from, etc?CheersAndreas

Process (System.Diagnostics.Process) invoked by aspx hangs on iis6 / win2003

Hello all, I've encountered a problem trying to run an external exe from an aspx page. My code works fine when running under visual studio and also when running under iis7 on windows server 2008 SP1. It does not work on iis6 on windows 2003 sp2: 1. The executable is loaded and uses 560k or so of memory 2. The executable does not use any cpu 3. The executable does not appear to enter Main()  4. The invoking code hangs at WaitForExit() I've tried using different executables including a dummy that simply returned and that did not make any difference. I'm pretty sure that the credentials being used for the executable are correct because if I fudge the password, the process reports a login failure. I'm pretty sure that output blocking to the standard out and standard error streams is not the issue as a) it works on iis7 and b) when I first suspected this as the cause, I re-wrote the aspx to launch threads to read the streams. I've tried invoking my exe directly and via cmd.exe and that makes no difference. Anyway, if anyone has any ideas on this, it would be greatly appreciated. I've included a snippet of my code below. Thanks in advance... ...Beau                     // Create a new process to invoke the console app                     usi

System.Diagnostics not working in IIS 6: Urgent

Hi All, I have developed a ASP.NET C# web page which connects to remote conmputer command prompt using PSEXEC.exe and executes some command where the output of the command will get copied to the page. It works fine in the VS 2005 IDE. If the page is accessed via IIS from IE, the task PSEXEC.EXE appears in task manager of the server with the system account privilege after the method is triggered but nothing happens. Please find my present settings in IIS and others: 1. APP Pool Identity to Local System (Predefined) and also to a configurable admin account. 2. <processModel userName="SYSTEM" password="AutoGenerate" /> in Machine.Config file Also I've tried impersonasation in web.config file to an admin account. I am not able to sort this problem, please help. I've tried a lot spending more time. Code Is:Process p = new Process(); string result = ""; p.StartInfo.UseShellExecute = false; p.StartInfo.CreateNoWindow = true; p.StartInfo.RedirectStandardInput = true; p.StartInfo.RedirectStandardOutput = true; p.StartInfo.FileName = @"C:\psexec.exe"; p.StartInfo.Arguments = @"\\nawrkxp613 -u domain\usename -p Password1 cmd.exe /c ipconfig"; p.Start(); StreamReader stdOut = p.StandardOutput; p.WaitForExit(); result = stdOut.R

System.Reflection: How to use the name of fields within classes to get the values?

Hey there, I have  a class defiend as follows:public class VisitorStat { public int? PageViews { get; set; } public int? Visits { get; set; } public int? Visitors { get; set; } ... } At some point in my program, I need to gather the  Visitor stats and create a report table.List<VisitorStat> visitorStats = GetVisitorStats(startDate, endDate);   My issue is this: Because there are many rows in the table, rather than hard coding the name for each row as: "PageViews", "Visits", "Visitors"... I want a way to use the name of the fields in the class to create the Row name and insert the appropriate values. I found out about System.Reflection and wrote the following:  Type type = typeof(VisitorStat); // Get type pointer FieldInfo[] fields = type.GetFields(); // Obtain all fields //Start creating a row for each field in the class foreach (var field in fields) // Loop through fields { object temp = field.GetValue(null); //The first cell in the Row contains the name of the field Cell Col2Row1 = new Cell(new Paragraph(field.Name)); PdfTable.AddCell(Col2Row1); //for item returned when calling the function to get t

system.diagnostics not logging


I need to trace the message traveling into a web service.  I have successfully configured system.diagnostics and system.servicemodel  message logging on my development workstation but when I transfer those settings to my live environment I am not getting any .svclog output.

I added:

     <!--source name="System.Runtime.Serialization">
         <add name="SerializationListener"/>
     <source name="System.ServiceModel.MessageLogging" switchValue="Verbose">

Classes and Namespaces - Error CS0101 the namespace already contains a definition for


I keep getting the error: Error message: CS0101: The namespace '<global namespace>' already contains a definition for 'checkvalue'.

Then, I rename the Inherits from the @page directive in both the .aspx and .aspx.cs pages and it works!

My website has only 2 pages, and both use the same class (same class name, exactly same syntax) but it has been copied and pasted and the 2 aspx pages (and aspx.cs pages) are not referencing each other.

In other words, both aspx.cs pages (called page1.aspx.cs and page2.aspx.cs) has the class

public class CheckValue
        return true;

Both the aspx pages reference the 'inherits' files seperately:

<%@ Page Language="C#" CodeFile="page1.aspx.cs" Inherits="_1" %>

and my code behind

public partial class _1 : System.Web.UI.Page

and for my second page

<%@ Page Language="C#" CodeFile="page2.aspx.cs" Inherits="_2" %>

and my code behind

public partial class _2 : System.Web.UI.Page

I don't use the .resx file.

Why does this error happen some times, and not other times?


using System as a namespace name


I dont exactly understand namespace resolution. I have a general purpose class library. Some of the namespaces in MyLib match the namespace names in the CLR.  MyLib.Threading contains classes which augment classes found in System.Threading.  Now I have created a MyLib.System namespace. It will contain a static class similar to System.Math. 

Problem is, once I created MyLib.System, references to objects such as System.Xml.XmlReader no longer work.  Within the MyLib.Xml namespace, references to System.Xml.XmlReader want to resolve up the MyLib.System path.

How doe namespace resolution work in this respect? How to resolve to System.Xml.XmlReader instead of MyLib.System?



System.Windows.Documents Namespace not found


I'm using ASP.NET4.0, and getting the following compilation error:

CS0234: The type or namespace name 'Documents' does not exist in the namespace 'System.Windows' (are you missing an assembly reference?)

Source Error:

Line 20: using System.Web.UI.HtmlControls;
Line 21: using System.Security.Principal;
Line 22: using System.Windows.Documents;
Line 23: 
Line 24: /// <summary> ///

Source File: c:\Documents and Settings\stilwell\Desktop\DEV40-1\App_Code\LoadForm.cs    Line: 2

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