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• Passing data between states PHP

  - by esryl

  So I am using Limonade PHP which has a RESTful design which emulates PUT, POST, DELETE routes for create, update, delete. I am trying to develop some form validation which is going well. The major problem I am facing though is how to return my filtered data (which has failed validation) back to repopulate the create or edit form. How would this be done? I currently have for creating a page: /admin/page/new -> GET function /admin/page -> POST function + validate + pass, update db + fail, add errors to flash, redirect to /admin/page/mew It all falls down as I do not know how to populate the /admin/page/new with the invalid, but filtered data.

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• Scripting.dictionary to c#

  - by naresh

  Facing one problem please help me.... We are product development company and our existing application is in ASP, I am trying to send scripting.dictionary object to c#'s com visible class. I am using the System.Collections.Generic class here is my code ASP: dim dictForm set dictForm=CreateObject("scripting.dictionary") dictForm("First") ="one" dictForm("Second") ="two" SET OBJMSGBOX = Server.CreateObject("DictionarySerializer.DictionarySerializer") call OBJMSGBOX.ConvertDictionary(dictForm) c#: [ComVisible(true)] public class DictionarySerializer : IXmlSerializable { Dictionary dict = new Dictionary(); public void ConvertDictionary(Dictionary dictionary) { this.dict = dictionary; } } I am getting error Invalid procedure call or argument: 'ConvertDictionary' Please tell me where I am going in wrong way.

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• XCode Syntax Coloring Broken

  - by sw12345

  XCode frequently seems to lose it's mind, and doesn't color code system classes or provide correct "code sense" suggestions. This is endlessly frustrating. The question has been asked on at least three other occasions: http://stackoverflow.com/questions/2263994/problems-with-xcode-syntax-highlighting http://stackoverflow.com/questions/1627033/xcode-code-sense-color-completion-not-working http://stackoverflow.com/questions/2138047/xcode-code-loses-syntax-coloring I have switched by project version to/from 3.1-compatiable and 3.2-compatiable, completely restarting XCode before and after each change with no effect. I have rebuilt the code sense indexes and completely restarted XCode with no change. I have built my project to make sure there are no errors and restarted. I have copied my files (sans .svn files) to a different location - same problem. I've already completely disabled the argument "placeholders" because they screw up my documents when i type too fast... all I'm asking for is for the "esc" key to display the correct list of properties and methods.

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• Python + PostgreSQL + strange ascii = UTF8 encoding error

  - by Claudiu

  I have ascii strings which contain the character "\x80" to represent the euro symbol: >>> print "\x80" € When inserting string data containing this character into my database, I get: psycopg2.DataError: invalid byte sequence for encoding "UTF8": 0x80 HINT: This error can also happen if the byte sequence does not match the encodi ng expected by the server, which is controlled by "client_encoding". I'm a unicode newbie. How can I convert my strings containing "\x80" to valid UTF-8 containing that same euro symbol? I've tried calling .encode and .decode on various strings, but run into errors: >>> "\x80".encode("utf-8") Traceback (most recent call last): File "<pyshell#14>", line 1, in <module> "\x80".encode("utf-8") UnicodeDecodeError: 'ascii' codec can't decode byte 0x80 in position 0: ordinal not in range(128)

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• If you're not supposed to use Regular Expressions to parse HTML, then how are HTML parsers written?

  - by Andy E

  I see questions every day asking how to parse or extract something from some HTML string and the first answer/comment is always "Don't use RegEx to parse HTML, lest you feel the wrath!" (that last part is sometimes omitted). This is rather confusing for me, I always thought that in general, the best way to parse any complicated string is to use a regular expression. So how does a HTML parser work? Doesn't it use regular expressions to parse. One particular argument for using a regular expression is that there's not always a parsing alternative (such as JavaScript, where DOMDocument isn't a universally available option). jQuery, for instance, seems to manage just fine using a regex to convert a HTML string to DOM nodes. Not sure whether or not to CW this, it's a genuine question that I want to be answered and not really intended to be a discussion thread.

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• MSMQ.MSMQQueueInfo PathName Not Accepted

  - by user357596

  I am using MSMQ.MSMQQueueInfo with jscript on Windows 7 (the latest MSMQ version). This is being run on a domain joined computer. For some reason unknown to me, it just will not accept the PathName I give it (which is in an acceptable format). Here is the code: var qi = new ActiveXObject ("MSMQ.MSMQQueueInfo"); qi.PathName = "FormatName:Direct=OS:mycomputer\\Private$\\myqueue"; I know this PathName works, because I use the exact same path in c#, and that works: queue = new MessageQueue("FormatName:DIRECT=OS:" + contollerName + "\\Private$\\" + queueName); When the code "qi.Open()" in the jscript code attempts to execute, it returns this error message: The queue path name specified is invalid. Has anyone else run into this? Ideas? Comments? Suggestions? Thank you in advance!

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• struts validation problem in IE

  - by user265201

  I am using Struts 2.1.8 and facing validation problem in IE. I am getting the following error An exception occurred: Error. Error message: Invalid argument. I tried out to figure out the cause and found the following. My generated javascript code is: field = form.elements['district.name']; var error = "Enter only alphabets for district"; if (continueValidation && field.value != null && !field.value.match("^[a-zA-Z ]*$")) { addError(field, error); errors = true; } I tried to mock up by putting the same code in a function and calling it in onclick event. The method addError() throws the exception and the reason is field variable. If I change it to field[0], it works fine. How to fix this error?

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• Twitter oauth_callback parameter being ignored!

  - by Astrofaes

  Hi guys, I'm trying to get Twitter authentication working on my ASP.NET site. When you create the app on the Twitter website, you have to specify a callback URL, which for sake of argument, I have set to http://mydomain.com I've read the oAuth 1.0a spec, and to override this callback URL with your own custom one you have to send the oauth_callback parameter in the request_token phase (url-encoded of course). So my request URL looks like this: http://twitter.com/oauth/request_token?oauth_callback_url=http%3A%2F%2Fmydomain.com%2Ftwittercallback Supposedly, if all goes to plan, in your response data, you are supposed to receive a new parameter of oauth_callback_confirmed=true in addition to your token and token secret parameters. However, my response comes through as: oauth_token=MYTOKEN&oauth_token_secret=MYTOKENSECRET I know I haven't given you guys the greatest amount to go on, but I'm at my wits end as to why I am not receiving the oauth_callback_confirmed parameter. Without this, my application keeps defaulting back to the callback URL hard-coded on the Twitter website. Please if anyone could help me out, I will be eternally grateful! Thanks, A.

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• py.test import context problems (causes Django unit test failure)

  - by dhill

  I made a following test: # main.py import imported print imported.f.__module__ # imported.py def f(): pass # test_imported.py (py.test test case) import imported def test_imported(): result = imported.f.__module__ assert result == 'imported' Running python main.py, gives me imported, but running py.test gives me error and result value is moduletest.imported (moduletest is the name of the directory I keep the test in. It doesn't contain __init__.py, moduletest is the only directory containing *.py files in ~/tmp). How can I fix result value? The long story: I'm getting strange errors, while testing Django application. A call to reverse() from (django.urlresolvers). with function object foo as argument in tests crashes with NoReverseMatch: Reverse for 'site.app.views.foo'. The same call inside application works. I checked and it is converted to 'app.views.foo' (without site prefix). I first suspected my customised test setup for Django, but then I made above test.

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• Referring to the type of an inner class in Scala

  - by saucisson

  The following code tries to mimic Polymorphic Embedding of DSLs: rather than giving the behavior in Inner, it is encoded in the useInner method of its enclosing class. I added the enclosing method so that user has only to keep a reference to Inner instances, but can always get their enclosing instance. By doing this, all Inner instances from a specific Outer instance are bound to only one behavior (but it is wanted here). abstract class Outer { sealed class Inner { def enclosing = Outer.this } def useInner(x:Inner) : Boolean } def toBoolean(x:Outer#Inner) : Boolean = x.enclosing.useInner(x) It does not compile and scala 2.8 complains about: type mismatch; found: sandbox.Outer#Inner required: _81.Inner where val _81:sandbox.Outer From Programming Scala: Nested classes and A Tour of Scala: Inner Classes, it seems to me that the problem is that useInnerexpects as argument an Inner instance from a specific Outer instance. What is the true explanation and how to solve this problem ?

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• Obey the MediaBox/CropBox in PDF when using ghostscript to render a PDF to a png

  - by gordonwatts

  I've been using ghostscript to convert my single figure plots rendered in PDF to png: gswin32c -sDEVICE=png16m -r300x300 -sOutputFile=junk.png -dBATCH -dNOPAUSE Figure_001-a.pdf This works in the sense I get a png out and it contians the plot. But it contains a huge amount of white space as well (an example source image: http://cdsweb.cern.ch/record/1258681/files/Figure_001-a.pdf). If you view it in Acrobat you'll note there is no white space around the plot. If you use the above command line you'll find the plot is only about 1/3 of the space. When doing the same thing with an eps file I run into the same problem. However, there is the command-line parameter -dEPSCrop that one can pass to get the PS rendering engine to pay attention to the BoundingBox. I need the similar argument for rendering PDF's. I was not able to find it in docs (nor even the EPSCrop, actually).

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• .Net Regular expression - how to do an exact match exclusion on a full string?

  - by Nathan Ridley

  I need a .Net regular expression that matches anything OTHER than the exact full string match specified. So basically: ^Index$ ... is the only exclusion I care about. Strings can start with, finish with or contain "Index", but not match exactly. My brain doesn't seem to be working today and I'm failing to work this one out. EDIT The answer MUST be via the pattern itself, as I am passing an argument to a third party library and do not have control over the process other than via the Regex pattern.

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• glibc backtrace - can't redirect output to file

  - by Jason Antman

  Hi, I'm in the process of debugging a C program (that I didn't write). I have all of the internal debugging tools (a whole bunch of printf's) enabled, and I wrote a small PHP script that uses proc_open() and just grabs both stdout and stderr, and time-coordinates them in one file. At the moment, the binary is dieing with a realloc() error that's caught by glibc, and a glibc backtrace is printed, beginning with: *** glibc detected *** /sbin/rsyslogd: realloc(): invalid next size: 0x00002ace626ac910 *** Here's the thing I don't understand: I've confirmed that the PHP script is catching both stdout and stderr from the binary's process and writing them to the correct files, but this backtrace is still printed to the console. Where is this coming from? Is there some magical output channel other than stdout and stderr? Any ideas on how I go about capturing this backtrace to a file, or sending it out with stderr? Thanks, Jason

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• cant login using System.Diagnostics.Process.Start

  - by omair iqbal

  i am tying to login using System.Diagnostics.Process.Start private void button1_Click(object sender, EventArgs e) { System.Diagnostics.Process.Start("iexplore","[email protected]","password","http://www.gmail.com"); } but visual studio gives me these 2 errors: Error 1 The best overloaded method match for 'System.Diagnostics.Process.Start(string, string, System.Security.SecureString, string)' has some invalid arguments C:\Documents and Settings\Omair\My Documents\Visual Studio 2008\Projects\WindowsFormsApplication3\WindowsFormsApplication3\Form1.cs 21 13 WindowsFormsApplication3 and Error 2 Argument '3': cannot convert from 'string' to 'System.Security.SecureString' C:\Documents and Settings\Omair\My Documents\Visual Studio 2008\Projects\WindowsFormsApplication3\WindowsFormsApplication3\Form1.cs 21 80 WindowsFormsApplication3 note: i am brand new to c# and reletively new to the world of programming sorry for my english

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• Redmine connecting to SVN through SSL

  - by Pekka

  I am having trouble connecting Redmine to a locally hosted subversion repository using SSL. I suspect it's the self-signed certificate that usually triggers a warning in the SVN client and browser. When I try to connect to the local repo through SSL in Redmine, I get a red "Revision not available" error. When I try connecting through svn://, the connection times out, and I have to restart the web server. Connecting without SSL works without problems. It would be nice to run subversion on SSL to make it safely accessible from the outside as well. I could run the repository through plain HTTP but would like SSL for outside communication. As far as I understand, subversion can't be run both ways at the same time. Does anybody know what to do in such a situation? Is there a configuration setting to ignore invalid certificates somewhere?

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• need help with installing shared libraries on linux

  - by naiquevin

  Hi, I am new to linux and trying to get the Ajax Push engine server to work on Ubuntu 9.04. I installed the server from source it fails the check that it does by using its own javascript framework. The problem is that it fails to load the modules and the output that i get in the terminal when i start it is. [Module] Failed to load ../modules/lib/libmod_spidermonkey.so [Invalid library] (libmysac.so.0.0: cannot open shared object file: No such file or directory) i thought i had to install mysac lib as a shared lib, so after some searching i copied the libmysac.so to /usr/local/lib/ and upon running ldconfig there it created the symlink. But still it gived the same error. Now I copied the libmod_spidermonkey.so in the shared lib dir. But this time ldconfig did not create any symlinks. I am really confused and looking for some pointers . Please help

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• Embedding generic sql queries into c# program

  - by Pooja Balkundi

  Okay referring to my first question code in the main, I want the user to enter employee name at runtime and then i take this name which user has entered and compare it with the e_name of my emp table , if it exists i want to display all information of that employee , how can I achieve this ? using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; using MySql.Data.MySqlClient; namespace ConnectCsharppToMySQL { public class DBConnect { private MySqlConnection connection; private string server; private string database; private string uid; private string password; string name; //Constructor public DBConnect() { Initialize(); } //Initialize values private void Initialize() { server = "localhost"; database = "test"; uid = "root"; password = ""; string connectionString; connectionString = "SERVER=" + server + ";" + "DATABASE=" + database + ";" + "UID=" + uid + ";" + "PASSWORD=" + password + ";"; connection = new MySqlConnection(connectionString); } //open connection to database private bool OpenConnection() { try { connection.Open(); return true; } catch (MySqlException ex) { //When handling errors, you can your application's response based //on the error number. //The two most common error numbers when connecting are as follows: //0: Cannot connect to server. //1045: Invalid user name and/or password. switch (ex.Number) { case 0: MessageBox.Show("Cannot connect to server. Contact administrator"); break; case 1045: MessageBox.Show("Invalid username/password, please try again"); break; } return false; } } //Close connection private bool CloseConnection() { try { connection.Close(); return true; } catch (MySqlException ex) { MessageBox.Show(ex.Message); return false; } } //Insert statement public void Insert() { string query = "INSERT INTO emp (e_name, age) VALUES('Pooja R', '21')"; //open connection if (this.OpenConnection() == true) { //create command and assign the query and connection from the constructor MySqlCommand cmd = new MySqlCommand(query, connection); //Execute command cmd.ExecuteNonQuery(); //close connection this.CloseConnection(); } } //Update statement public void Update() { string query = "UPDATE emp SET e_name='Peachy', age='22' WHERE e_name='Pooja R'"; //Open connection if (this.OpenConnection() == true) { //create mysql command MySqlCommand cmd = new MySqlCommand(); //Assign the query using CommandText cmd.CommandText = query; //Assign the connection using Connection cmd.Connection = connection; //Execute query cmd.ExecuteNonQuery(); //close connection this.CloseConnection(); } } //Select statement public List<string>[] Select() { string query = "SELECT * FROM emp where e_name=(/*I WANT USER ENTERED NAME TO GET INSERTED HERE*/)"; //Create a list to store the result List<string>[] list = new List<string>[3]; list[0] = new List<string>(); list[1] = new List<string>(); list[2] = new List<string>(); //Open connection if (this.OpenConnection() == true) { //Create Command MySqlCommand cmd = new MySqlCommand(query, connection); //Create a data reader and Execute the command MySqlDataReader dataReader = cmd.ExecuteReader(); //Read the data and store them in the list while (dataReader.Read()) { list[0].Add(dataReader["e_id"] + ""); list[1].Add(dataReader["e_name"] + ""); list[2].Add(dataReader["age"] + ""); } //close Data Reader dataReader.Close(); //close Connection this.CloseConnection(); //return list to be displayed return list; } else { return list; } } public static void Main(String[] args) { DBConnect db1 = new DBConnect(); Console.WriteLine("Initializing"); db1.Initialize(); Console.WriteLine("Search :"); Console.WriteLine("Enter the employee name"); db1.name = Console.ReadLine(); db1.Select(); Console.ReadLine(); } } }

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• GoTo statements, and alternatives (help me please im new) (VB.net)

  - by qais

  Basically I posted a code snippet on a forum asking for help and people pointed out to me that using GoTo statements is very bad programming practise so I'm just wondering, why is it bad? And also what alternative is there to use, like for example in this program ive done for homework the user has to input their date of birth and if the month/date/year are invalid or unrealistic(using if statements checking the integer inputs size, if theres any better way to do this i'd appreciate if you could tell me that also :D) then how would i be able to loop back to ask them again? heres a little extract of my code retryday: Console.WriteLine("Please enter the day you were born : ") day = Console.ReadLine If day > 31 Or day < 1 Then Console.WriteLine("Please enter a valid day") GoTo retryday End If

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• Exchange 2003 Public Folder Replica list

  - by Niall

  Hi, I am trying to update a replica list on a Exchange 2003 public folder. I am using the WMI namespace exchange_publicfolder to try and add an Exchange server (using the servers DN) to the AddReplica procedure. Every time I run this I get an invalid parameter as an exception. Below is the code that I am using to do this. WMI.Connect(Server, credentials) Using WMISearcher As New ManagementObjectSearcher(WMI.Scope, & _ New ObjectQuery(String.Format("SELECT * FROM Exchange_Publicfolder WHERE path='{0}'", Name))) Using PublicFolder As ManagementObjectCollection = WMISearcher.Get For Each Folder As ManagementObject In PublicFolder Dim BaseFolder As ManagementBaseObject = Folder.GetMethodParameters("AddReplica") BaseFolder("path") = ServerDN Folder.InvokeMethod("AddReplica", BaseFolder, Nothing) Next End Using End Using I have used WMI before and I can see that the call is connecting to the correct public folder because i can itterate through the properies once the query has executed. I am not sure what I am doing wrong here. If anyone has any ideas or comments the please let me know. Thanks Niall

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• JSF 2 Scriptmanager style functionality

  - by CDSO1

  I need to be able to add some javascript to all ajax postback responses (PartialViewContext.isAjaxRequest == true) but I am not succeeding with any implementation I try. I have tried implementing a PhaseListener and adding my script using PartialResponseWriter.insert* to add eval blocks, as well as trying to add the script by creating a script element. (Results in CDATA cannot nest, or just invalid XML) I have tried decorating PartialViewContextFactory to override the PartialViewContext.processPartial and add the script after the wrapped instance has processed it... How should I go about adding sripts to an Ajax response? Something similar to what .NET has with Scriptmanager.registerClientScriptBlock preferably. Thank you

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• UILocalNotification crash

  - by Miky Mike

  Hi everyone, could you please help me ? I'm setting up an UILocalNotification and It crashes when I try to set its userInfo dictionary. My dictionary is not empty (It contains 88 objects). Here is the code : NSDictionary* myUserInfo = [NSDictionary dictionaryWithObject: fetchedObjects forKey: @"textbody"]; UILocalNotification *localNotif = [[UILocalNotification alloc] init]; if (localNotif == nil) return; // défining the interval NSTimeInterval oneMinute = 60; localNotif.timeZone = [NSTimeZone localTimeZone]; NSDate *fireDate = [[NSDate alloc]initWithTimeIntervalSinceNow:oneMinute]; localNotif.fireDate = fireDate; localNotif.userInfo = myUserInfo; [fetchedObjects release]; and the console gives me this : Property list invalid for format: 200 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'unable to serialize userInfo: (null)' Any idea ?

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• Can a grails controller extend from a base class? How to make it so grails doesn't blow up?

  - by egervari

  I wrote a base class to help build my controllers more quickly and to remove duplication. It provides some helper methods, default actions and some meta programming to make these things easier to build. One of those methods in the base class is like this: def dynamicList(Class clazz) { def model = new LinkedHashMap() model[getMapString(clazz) + "s"] = list(clazz) model[getMapString(clazz) + "sTotal"] = count(clazz) model } The action that calls it, also in the base class, is this: def list = { dynamicList(clazz) } Unfortunately, when I go to list action in the controller subclass that inherits the base class when my application is deployed, I get this exception: groovy.lang.MissingMethodException: No signature of method: groovy.lang.MissingMethodException.dynamicList() is applicable for argument types: (java.lang.Class) values: [class project .user.User] at project.user.UserController$_closure1.doCall(UserController.groovy:18) at project.user.UserController$_closure1.doCall(UserController.groovy) at java.lang.Thread.run(Thread.java:619) How can I hit grails over the head and just tell it do what I want it to do? My controller unit tests run just fine, so grails' run-time is totally at fault :/ Ken

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• How to optimize erasing from multimap

  - by Dominating

  I have two multimaps defined so multimap phoneNums; and multimap numPhones; they are some kind of phone registry - phoneNums contains Key name, and second argument phonenumber, numPhones contain Key phonenumber and second is name. I want to optimize erase from both of them when i want to delete string Key form phoneNums, which is also second element in numPhones. When i enter data it is entered in both multimaps so they are actually the same but with swapped first and second when i put it on tests it says that erasing is too slow - N*N and must be only N cin>>stringToErase; phoneNums.erase(stringToErase); multimap<string, string>::iterator it; multimap<string, string>::iterator tmpr; for(it = numPhones.begin(); it != numPhones.end();it++) { if(it->second == tringToErase) { tmpr = it; numPhones.erase(it,tmpr); } }

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• Conversion of pointer-to-pointer between derived and base classes?

  - by Mike Mueller

  Regarding the following C++ program: class Base { }; class Child : public Base { }; int main() { // Normal: using child as base is allowed Child *c = new Child(); Base *b = c; // Double pointers: apparently can't use Child** as Base** Child **cc = &c; Base **bb = cc; return 0; } GCC produces the following error on the last assignment statement: error: invalid conversion from ‘Child**’ to ‘Base**’ My question is in two parts: Why is there no implicit conversion from Child** to Base**? I can make this example work with a C-style cast or a reinterpret_cast. Using these casts means throwing away all type safety. Is there anything I can add to the class definitions to make these pointers cast implicitly, or at least phrase the conversion in a way that allows me to use static_cast instead?

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• Performance Counters Registry validation

  - by anchandra

  I have a C# application that adds some performance counters when it starts up. But if the registry HKEY_LOCAL_MACHINE-SOFTWARE-Microsoft-Windows NT-CurrentVersion-Perflib is corrupted (missing or invalid data), the operation of checking the existence of the performance counters (PerformanceCounterCategory.Exists(category) takes a really long time (around 30 secs) before finally throwing exception (InvalidOperation: Category does not exist). My question is how can i verify the validity of the registry before trying to add the performance counters (and what validity means) or if there is a way i can timeout the perf counter operations, so that it doesn't take 30 seconds to get an exception.

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