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  • send and receive in socket [closed]

    - by user3696492
    I have trouble in sending an object through socket in c#, my client can send to server but server can't send to client, i think there is something wrong with the client. Server private void Form1_Load(object sender, EventArgs e) { CheckForIllegalCrossThreadCalls = false; Thread a = new Thread(connect); a.Start(); } private void sendButton_Click(object sender, EventArgs e) { client.Send(SerializeData(ShapeList[ShapeList.Count - 1])); } void connect() { try { server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 5555); server.Bind(iep); server.Listen(10); client = server.Accept(); while (true) { byte[] data = new byte[1024]; client.Receive(data); PaintObject a = (PaintObject)DeserializeData(data); ShapeList.Add(a); Invalidate(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } client private void Form1_Load(object sender, EventArgs e) { CheckForIllegalCrossThreadCalls = false; Thread a = new Thread(connect); a.Start(); } private void SendButton_Click(object sender, EventArgs e) { client.Send(SerializeData(ShapeList[ShapeList.Count - 1])); } void connect() { try { client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 5555); client.Connect(iep); while (true) { byte[] data = new byte[1024]; client.Receive(data); PaintObject a = (PaintObject)DeserializeData(data); ShapeList.Add(a); Invalidate(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } }

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  • Mounting an Amazon EC2 instance on Mac OS X

    - by hinghoo
    I've got public key authentication working between my Mac OS X and an Amazon EC2 instance so that from the command-line I can just type the following and it works: ssh root@[IPAddressOfEC2Instance] The strange thing is that I can't seem to mount the instance using "Connect to Server" in the Finder. I've tried typing the following server addresses into the "Connect to Server" dialog: ftps://[IPAddressOfEC2Instance] ftps://root@[IPAddressOfEC2Instance] But all I get is You entered an invalid username or password. Please try again. The root user on the EC2 instance has a blank password and I'm wondering if it has to do with that. However, I can't change the password for the root user. I can use an SFTP client to connect to the machine, I just can't mount it with "Connect to server". It asks for a username and password (for a registered user) and it's root/[blank] which it doesn't accept. The other option is "Guest" which brings up an empty folder in the Finder.

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  • WD 1TB Passport Essential not working on some USB ports

    - by user143863
    I have a strange situation here. I got a new Toshiba P850/04P laptop, there are 4 USB 3.0 ports, 2 on the right and 2 on the left. When I plug my WD 1TB Passport Essential into the 2 ports on the left, the drive keeps disconnecting and then connecting again, on and off. Sometimes it works well for 1 hour and then disconnects and even shows the "please format your drive" message. What is odd is: this WD 1TB Passport Essential works perfectly on those 2 ports on the right side. It has been working fine on all other PCs and laptops. Another 500 GB WD passport can work with the USB ports on the left (the ones 1TB can not), also all other devices can work with all 4 ports. I am really confused! Does anyone know what the problem could be?

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  • jQuery dynamic validation

    - by kpomka
    Hi there Im trying to do a few things with jQuery validation plugin and seems stuck on one place. Here is some code: <script type="text/javascript"> $(document).ready(function(){ $('#myform').validate(); $('#email').rules('add', {required: true, messages: {required: 'email is required'}} ); $('#phone').rules('add', {required: true, messages: {required: 'phone is required'}} ); $('#validate').click(function(){ $('#result').text($('#myform').validate().form()); return false; }); }); </script> <form id="myform"> <div>email:<input type="text" id="email" /></div> <div>phone:<input type="text" id="phone" /></div> <div id="result"></div> <input id="valdate" type="image" src="images/submit.png" /> </form> As a result i keep getting a wrong error message. If i click on submit button 'phone is required' is shown near email input and 'email is required' isnt shown at all. Whats wrong with this code ?

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  • Looping through a method without for/foreach/while

    - by RichK
    Is there a way of calling a method/lines of code multiple times not using a for/foreach/while loop? For example, if I were to use to for loop: int numberOfIterations = 6; for(int i = 0; i < numberOfIterations; i++) { DoSomething(); SomeProperty = true; } The lines of code I'm calling don't use 'i' and in my opinion the whole loop declaration hides what I'm trying to do. This is the same for a foreach. I was wondering if there's a looping statement I can use that looks something like: do(6) { DoSomething(); SomeProperty = true; } It's really clear that I just want to execute that code 6 times and there's no noise involving index instantiating and adding 1 to some arbitrary variable. As a learning exercise I have written a static class and method: Do.Multiple(int iterations, Action action) Which works but scores very highly on the pretentious scale and I'm sure my peers wouldn't approve. I'm probably just being picky and a for loop is certainly the most recognisable, but as a learning point I was just wondering if there (cleaner) alternatives. Thanks. (I've had a look at this thread, but it's not quite the same) http://stackoverflow.com/questions/2248985/using-ienumerable-without-foreach-loop

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  • Ubuntu Lucid (10.04) subpixel font rendering crashes Xorg

    - by user36066
    Hi everyone... I really don't know how to solve this on my own so I thought giving this site a chance. After upgrading to Lucid I ran into some problems. With some experimenting I came to a conclusion that if I enable subpixel smoothing on fonts the moment I start any other application not native to GTK+ (wine, openoffice, wxWidgets, ...) my X server crashes the same moment. At first this seemed like something went wrong during installation. To cut the long story short, after 3 clean installations and whole bunch of experimenting the same thing happens all over again. Strange thing is... if I configure any other font smoothing besides subpixel, everything works like it should. Any thoughs?

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  • Get Form Input via Ajax

    - by user3651491
    I have a jqgrid plugin which I call via Ajax. I have index.php and a getGridData.php. How will I pass form input in getGridData.php via ajax and use it in getGridData.php? I tried serialize but I can't pass or access it on getGridData.php. I need it as parameters for mysql. Here's my code. <script language="javascript" type="text/javascript"> function jgGrid() { $(document).ready(function () { $("#grid").jqGrid({ url: "inc/Controller/getGridData.php"+$("#thisForm").serialize(), data : formData, datatype: "json", mtype: "POST", colNames: ["SiteID", "TerminalID", "TransactionType", "Amount", "ServiceStatus"], colModel: [ { name: "SiteID"}, { name: "TerminalID"}, { name: "TransactionType"}, { name: "Amount"}, { name: "ServiceStatus"}, ], pager: "#pager", rowNum: 10, rowList: [10,20], sortname: "SiteID", sortorder: "asc", height: 'auto', viewrecords: true, gridview: true, caption: "" }); }); } </script> getGridData.php include('../Model/Queries.php'); $cardnumber = $_POST['cardnumber']; $transact_type = $_POST['transact_type']; $fromdate = $_POST['fromdate']; $todate = $_POST['todate']; $loyalty = new Queries(); $get_mid = $loyalty->loyaltyConn($cardnumber); $somedata = json_encode($loyalty->nposConn($get_mid, $transact_type, $fromdate, $todate)); echo $somedata;

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  • Properly obsoleting old members in an XML Serializable class in C# VB .NET

    - by George
    Hi! Some time ago I defined a class that was serialized using XML. That class contained a serializable propertyA of integer type. Now I have extended and updated this class, whereby a new propertyB was added, whose type is another class that also has several serializable properties. The new propertyB is now supposed to play the role of propertyA, that is since type of propertyB is another class, one of its members would contain the value that previously propertyA contained, thus making peroptyA obsolete. What I am trying to figure out is how do I make sure that when I desireliaze the OLD version of this class (without propertyB in it), I make sure that the desreializer would take the value of propertyA from the old calss and set it as a value of one of the members of propertyB in a new class? Private WithEvents _Position As Position = New Position(Alignment.MiddleMiddle, 0, True, 0, True) Public Property Position() As Position 'NEW composite property that holds the value of the obsolted property, i.e. Alignment Get Return _Position End Get Set(ByVal value As Position) _Position = value End Set End Property Private _Alignment As Alignment = Alignment.MiddleMiddle <Xml.Serialization.XmlIgnore(), Obsolete("Use Position property instead.")> _ Public Property Alignment() As Alignment'The old, obsoleted property that I guess must be left for compliance with deserializing the old version of this class Get Return _Alignment End Get Set(ByVal value As Alignment) _Alignment = value End Set End Property Can you help me, please?

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  • How can I create an instance of a class that I can use is more than one place in c#

    - by user1743574
    So I've been working on a class that details students of a university. I have one button that sets the details to a new instance of a class, and another to check if the student passed, through a method in my Class. The problem is that I create an instance of a class in the first button to add the values from what the user input, but I cannot use the second button to access the instance of the class created in the first button. private void button3_Click(object sender, EventArgs e) { Student student1 = new Student(); label1.Text = student1.text(); if (student1.hasPassed() == true) { passfailtextbox.Text = "Pass"; } else { passfailtextbox.Text = "Fail"; } } private void button1_Click(object sender, EventArgs e) { Student student1 = new Student(); student1.FirstName = firstnamebox.Text; student1.SecondName = secondnamebox.Text; student1.DateofBirth = DateTime.Parse(dobtextbox.Text).Date; student1.Course = coursetextbox.Text; student1.MatriculationNumber = int.Parse(matriculationtextbox.Text); student1.YearMark = double.Parse(yearmarktextbox.Text); } public Boolean hasPassed() { if (YearMark < 40) { return false; } else { return true; } } public string text() { return "Student" + " " + firstname + " " + secondname + " " + course + " " + dob.ToString() + " " + matriculationnumber.ToString() + " " + yearmark.ToString() ; }

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  • Div's are not filtered as :hidden when display:none; is appended as style

    - by CodeMonkey
    Hey folks I have some simple HTML: <div id="selectorContainer"> <div id="chainedSelector" style="display: none;"><% Html.RenderPartial("ProjectSuggest/ChainedProjectSelector"); %></div> <div id="suggestSelector"><% Html.RenderPartial("ProjectSuggest/SuggestControl", new SuggestModeDTO{RegistrationMode = Model.RegistrationMode}); %></div> </div> which is two containers for controls. I have jQuery code to toggle between displaying these, but I need to store as a cookie which one was used last time the user was logged in (i.e. which one was visible). The storing of the cookie is not the problem. The problem is that I for some reason am not able to detect which one is the hidden one, using .is(":hidden"), and not able to detect which one is visible using .is(":visible") When I use those two selectors, I always get both. "true" and "true" for both, eventhough one has display: none; and the other doesn't. Please note that they are NOT placed inside a hidden container which otherwise would hide both, so there are not any hidden ancestor containers. Can anyone maybe explain why this could happen? jQuery code containing source for getting the Id's and for getting the selected one (which currently is broken): getChainedSelectorId: function() { return "#chainedSelector"; }, getSuggestSelectorId: function() { return "#suggestSelector"; }, getSelectedSelector: function() { alert($(this.getChainedSelectorId()).is(":hidden")); alert($(this.getSuggestSelectorId()).is(":hidden")); var selected = ($(this.getChainedSelectorId()).is(":visible") ? this.getChainedSelectorId() : this.getSuggestSelectorId()); alert(selected); return selected; }, Thanks in advance.

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  • Android Google cloud messaging - not certain what parameters I should put when creating the push notification

    - by Genadinik
    I am working on a php script to send the notification to the CGM server and I am working from this example: public function send_notification($registatoin_ids, $message) { // include config include_once './config.php'; // Set POST variables $url = 'https://android.googleapis.com/gcm/send'; $fields = array( 'registration_ids' => $registatoin_ids, 'data' => $message, ); $headers = array( 'Authorization: key=' . GOOGLE_API_KEY, 'Content-Type: application/json' ); // Open connection $ch = curl_init(); // Set the url, number of POST vars, POST data curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // Disabling SSL Certificate support temporarly curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields)); // Execute post $result = curl_exec($ch); if ($result === FALSE) { die('Curl failed: ' . curl_error($ch)); } // Close connection curl_close($ch); echo $result; } But I am not certain what the values should be for the variables: CURLOPT_POSTFIELDS , CURLOPT_SSL_VERIFYPEER , CURLOPT_RETURNTRANSFER , CURLOPT_HOST , CURLOPT_URL Would anyone happen to know what the values for these should be? Thank you!

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  • Setting a mapped drive in Virtual hosts causes apache to not start

    - by darksoulsong
    I´m trying to set a virtual host on my windows 7 machine. The folder I want to point to is located on a centOS machine and the folder path is Z:\Websites\Online\MyClient\Site. But something strange happens when I set the document root like this: DocumentRoot "Z:\Websites\Online\MyClient\Site" Apache do not restarts after that. When I take a look at the log, there is an error pointing to that line, where I added the path to the folder: Syntax error on line 48 of C:/Program Files/Zend/Apache2/conf/extra/httpd-vhosts.conf: DocumentRoot must be a directory. There must be a way to make it work like this, by setting an Apache Installation on a machine and pointing it to a folder located on another computer, right? My hosts file is set like this: 172.17.10.1\Data\Websites\Online\MyClient\Site MyClient.local ANY HELP would be VERY appreciated.

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  • Excel I have a .Net object compiled as a tlb but cant not access any methods apart from Dispose.

    - by Mark O'Grady
    Hi This is ongoing issue to something I posted yesterday. I have a .net object that I want to use in Excel. I have an existing VBA script that i need to alter to call this the object from. I have then converted the object to a TLB. I've not really touched on this area before so any help will be appreciated. I have created an interface [Guid("0F700B48-E0CA-446b-B87E-555BCC317D74"),InterfaceType(ComInterfaceType.InterfaceIsDual)] [ComVisible(true)] public interface IOfficeCOMInterface { [DispId(1)] void ResetOrder(); [DispId(2)] void SetDeliveryAddress(string PostalName, string AddressLine1, string AddressLine2, string AddressLine3, string AddressLine4, string PostCode, string CountryCode, string TelephoneNo, string FaxNo, string EmailAddress); } I have also created an class that inherits that object. [ClassInterface(ClassInterfaceType.None), ProgId("NAMESPACE.OfficeCOMInterface"), Guid("9D9723F9-8CF1-4834-BE69-C3FEAAAAB530"), ComVisible(true)] public class OfficeCOMInterface : IOfficeCOMInterface, IDisposable { public void ResetSOPOrder() { } public void SetDeliveryAddress(string PostalName, string AddressLine1, string AddressLine2, string AddressLine3, string AddressLine4, string PostCode, string CountryCode, string TelephoneNo, string FaxNo, string EmailAddress) { try { SalesOrder.AmendDeliveryAddress(PostalName, AddressLine1, AddressLine2, AddressLine3, AddressLine4, PostCode); MessageBox.Show("Delivery address set"); } catch (Exception ex) { throw ex; } } } I can't access the object methods apart from dispose, I guess IDisposable is working fine. Is there anything I need to my Interface?

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  • Faster Javascript text replace

    - by Stacey
    Given the following javascript (jquery) $("#username").keyup(function () { selected.username = $("#username").val(); var url = selected.protocol + (selected.prepend == true ? selected.username : selected.url) + "/" + (selected.prepend == true ? selected.url : selected.username); $("#identifier").val(url); }); This code basically reads a textbox (username), and when it is typed into, it reconstructs the url that is being displayed in another textbox (identifier). This works fine - there are no problems with its functionality. However it feels 'slow' and 'sluggish'. Is there a cleaner/faster way to accomplish this task? Here is the HTML as requested. <fieldset class="identifier delta"> <form action="/authenticate/openid" method="post" target="_top" > <input type="text" class="openid" id="identifier" name="identifier" readonly="readonly" /> <input type='text' id='username' name='username' class="left" style='display: none;'/> <input type="submit" value="Login" style="height: 32px; padding-top: 1px; margin-right: 0px;" class="login right" /> </form> </fieldset> The identifier textbox just has a value set based on the hyperlink anchor of a button.

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  • C++ bughunt - High-score insertion in a vector crashes the program

    - by Francisco P.
    Hello, everyone! I have a game I'm working on. My players are stored in a vector, and, at the end of the game, the game crashes when trying to insert the high-scores in the correct positions. Here's what I have (please ignore the portuguese comments, the code is pretty straightforward :P): //TOTAL_HIGHSCORES is the max. number of hiscores that i'm willing to store. This is set as 10. bool Game::updateHiScores() { bool stopIterating; bool scoresChanged = false; //Se ainda nao existirem TOTAL_HISCORES melhores pontuacoes ou se a pontuacao for melhor que uma das existentes for (size_t i = 0; i < players.size(); ++i) { //&& !(players[i].isAI()) if (players[i].getScoreValue() > 0 && (hiScores.size() < TOTAL_HISCORES || hiScores.back() < players[i].getScore())) { scoresChanged = true; if(hiScores.empty() || hiScores.back() >= players[i].getScore()) hiScores.push_back(players[i].getScore()); else { //Ciclo que encontra e insere a pontuacao no lugar desejado stopIterating = false; for(vector<Score>::iterator it = hiScores.begin(); it < hiScores.end() && !(stopIterating); ++it) { if(*it <= players[i].getScore()) { //E inserida na posicao 'it' o Score correspondente hiScores.insert(it, players[i].getScore()); //Verifica se o comprimento do vector esta dentro do desejado, se nao estiver, este e rectificado if (hiScores.size() > TOTAL_HISCORES) hiScores.pop_back(); stopIterating = true; } } } } } if (scoresChanged) sort(hiScores.begin(), hiScores.end(), higher); return scoresChanged; } What am I doing wrong here? Thanks for your time, fellas.

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  • Errors not printing correctly..Is this logic flow correct? c++

    - by igor
    Example user input: PA1 9 //correct PJ1 9 //wrong, error printed "Invalid row" because it is not between A and I PA11 9 //wrong, error printer "Invalid column" because it is not between 1 and 9. The problem I am having is that it should clear the remaining input and then ask for the user to enter the "move" again, and it is not. Where did I go wrong? I've been at it for a while and still got no progress.. void clearInput() { cin.clear(); } bool getCoords(int & x, int & y) { char row; while(true){ cin>>row>>y; row=toupper(row); if(/*(id=='P' || id=='p' || id=='D' || id=='d') && */row>='A' && row<='I' && isalpha(row) && y>=1 && y<=9){ x=row-'A'; y=y-1; return true; } else if(!(y>=1 && y<=9)){ cout<<"Invalid column\n"<< endl << endl; cout<<y; clearInput(); cout<<y; //return false; } else{ cout<<"Invalid row\n"<< endl << endl; clearInput(); //cout<<x<<y; //return false; } } }

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  • VirtualBox Shared Folder encoding issue

    - by Somebody
    I'm using Ubuntu in Virtualbox and have a shared folder mounted to Virtualbox which i'm accessing inside Ubuntu. The problem is, that when i'm editing and saving some files from shared folder in Windows it's getting some strange symbols at the end of edited file. There must be some encoding issues. Doesn't Virtualbox automatically converts files to Unix standards? To fix that, i have to re-mount shared folder inside Ubuntu each time i'm editing some file. Any solution to avoid re-mounting each time I edit? I'm mounting like that: mount -t vboxsf SVN /opt/htdocs/ Thanks.

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  • HABTM selection seemingly ignores joinTable

    - by TheCapn
    I'm attempting to do a HABTM relationship between a Users table and Groups table. The problem is, that I when I issue this call: $this->User->Group->find('list'); The query that is issued is: SELECT [Group].[id] AS [Group__id], [Group].[name] AS [Group__name] FROM [groups] AS [Group] WHERE 1 = 1 I can only assume at this point that I have defined my relationship wrong as I would expect behavior to use the groups_users table that is defined on the database as per convention. My relationships: class User extends AppModel { var $name = 'User'; //...snip... var $hasAndBelongsToMany = array( 'Group' => array( 'className' => 'Group', 'foreignKey' => 'user_id', 'associationForeignKey' => 'group_id', 'joinTable' => 'groups_users', 'unique' => true, ) ); //...snip... } class Group extends AppModel { var $name = 'Group'; var $hasAndBelongsToMany = array ( 'User' => array( 'className' => 'User', 'foreignKey' => 'group_id', 'associationForeignKey' => 'user_id', 'joinTable' => 'groups_users', 'unique' => true, )); } Is my understanding of HABTM wrong? How would I implement this Many to Many relationship where I can use CakePHP to query the groups_users table such that a list of groups the currently authenticated user is associated with is returned?

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  • Windows Virtual Machine ping reply fails the first few times

    - by user28471
    I am running a windows Web Server 2008 virtual machine. When I try to ping it from another windows machine the ping reply comes straight back with 100% success. But when I try to ping it from one of the Linux boxes, the ping reply fails with partial or 100% loss the first couple of time and succeeds the third time onwards. I know it is quite strange but can any one think anything that could be causing it. Could anything in the Windows Domain Security or Firewall be "taking time" to allow responding to the ping request? In fact even the firewall is turned off on the virtual machine.

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  • .NET: Calling GetInterface method of Assembly obj with a generic interface argument

    - by Khnle
    I have the following interface: public interface PluginInterface<T> where T : MyData { List<T> GetTableData(); } In a separate assembly, I have a class that implements this interface. In fact, all classes that implement this interface are in separate assemblies. The reason is to architect my app as a plugin host, where plugin can be done in the future as long as they implement the above interface and the assembly DLLs are copied to the appropriate folder. My app discovers the plugins by first loading the assembly and performs the following: List<PluginInterface<MyData>> Plugins = new List<PluginInterface<MyData>>(); string FileName = ...;//name of the DLL file that contains classes that implement the interface Assembly Asm = Assembly.LoadFile(Filename); foreach (Type AsmType in Asm.GetTypes()) { //Type type = AsmType.GetInterface("PluginInterface", true); // Type type = AsmType.GetInterface("PluginInterface<T>", true); if (type != null) { PluginInterface<MyData> Plugin = (PluginInterface<MyData>)Activator.CreateInstance(AsmType); Plugins.Add(Plugin); } } The trouble is because neither line where I am getting the type as by doing Type type = ... seems to work, as both seems to be null. I have the feeling that the generic somehow contributes to the trouble. Do you know why?

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  • Random Alpha numeric generator

    - by AAA
    Hi, I want to give our users in the database a unique alpha-numeric id. I am using the code below, will this always generate a unique id? Below is the old and updated version of the code: New php: // Generate Guid function NewGuid() { $s = strtoupper(md5(uniqid("something",true))); $guidText = substr($s,0,8) . '-' . substr($s,8,4) . '-' . substr($s,12,4). '-' . substr($s,16,4). '-' . substr($s,20); return $guidText; } // End Generate Guid $Guid = NewGuid(); echo $Guid; echo "<br><br><br>"; Old PHP: // Generate Guid function NewGuid() { $s = strtoupper(md5(uniqid("something",true))); $guidText = substr($s,0,8) . '-' . substr($s,8,4) . '-' . substr($s,12,4). '-' . substr($s,16,4). '-' . substr($s,20); return $guidText; } // End Generate Guid $Guid = NewGuid(); echo $Guid; echo "<br><br><br>"; Will this first code guarantee uniqueness?

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  • How do I handle freeing unmanaged structures in C# on application close?

    - by LostKaleb
    I have a C# project in which i use several unmanaged C++ functions. More so, I also have static IntPtr that I use as parameters for those functions. I know that whenever I use them, I should implement IDisposable in that class and use a destructor to invoke the Dispose method, where I free the used IntPtr, as is said in the MSDN page. public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } private void Dispose(bool disposing) { // Check to see if Dispose has already been called. if (!this.disposed) { if (disposing) { component.Dispose(); } CloseHandle(m_InstanceHandle); m_InstanceHandle = IntPtr.Zero; disposed = true; } } [System.Runtime.InteropServices.DllImport("Kernel32")] private extern static Boolean CloseHandle(IntPtr handle); However, when I terminate the application, I'm still left with a hanging process in TaskManager. I believe that it must be related to the used of the MarshalAs instruction in my structures: [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)] public struct SipxAudioCodec { [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public string CodecName; public SipxAudioBandwidth Bandwidth; public int PayloadType; } When I create such a structure should I also be careful to free the space it allocs using a destructor? [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)] public struct SipxAudioCodec { [MarshalAs(UnmanagedType.ByValTStr, SizeConst=32)] public string CodecName; public SipxAudioBandwidth Bandwidth; public int PayloadType; ~SipxAudioCodec() { Marshal.FreeGlobal(something...); } } Thanks in advance!

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  • How do I add an object to a binary tree based on the value of a member variable?

    - by Max
    How can I get a specific value from an object? I'm trying to get a value of an instance for eg. ListOfPpl newListOfPpl = new ListOfPpl(id, name, age); Object item = newListOfPpl; How can I get a value of name from an Object item?? Even if it is easy or does not interest you can anyone help me?? Edited: I was trying to build a binary tree contains the node of ListOfPpl, and need to sort it in the lexicographic. Here's my code for insertion on the node. Any clue?? public void insert(Object item){ Node current = root; Node follow = null; if(!isEmpty()){ root = new Node(item, null, null); return; }boolean left = false, right = false; while(current != null){ follow = current; left = false; right = false; //I need to compare and sort it if(item.compareTo(current.getFighter()) < 0){ current = current.getLeft(); left = true; }else { current = current.getRight(); right = true; } }if(left) follow.setLeft(new Node(item, null, null)); else follow.setRight(new Node(item, null, null)); }

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  • Basic C# problem

    - by Juan
    Determine if all the digits of the sum of n -numbers and swapped n are odd. For example: 36 + 63 = 99, y 409 + 904 = 1313. Visual Studio builds my code, there is still something wrong with it ( it doesnt return an answer) can you please help me here? using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { long num = Convert.ToInt64(Console.Read()); long vol = voltea(num); long sum = num + vol; bool simp = simpares(sum); if (simp == true) Console.Write("Si"); else Console.Write("No"); } static private bool simpares(long x) { bool s = false; long [] arreglo = new long [1000]; while ( x > 0) { arreglo [x % 10] ++; x /=10; } for (long i=0 ; i <= arreglo.Length ; i++) { if (arreglo [i]%2 != 0) s = true; } return s; } static private long voltea(long x) { long v = 0; while (v > 0) { v = 10 * v + x % 10; x /= 10; } return v; } } }

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  • Better way to catch trouble points

    - by mac
    User submits a CSV file which is consumed by a program. Values which are used throughout the program come from the CSV, natually if values are missed it is a problem. Below is my solution. Ip on top private List<String> currentFieldName = new ArrayList<String>(); As part of the method: try { setCurrentFieldName("Trim Space"); p.setTrimSpace(currentLineArray[dc.getTRIM_POSITION()].equals("yes") ? true : false); setCurrentFieldName("Ignore Case"); p.setIgnoreCase(currentLineArray[dc.getIGNORE_CASE_POSITION()].equals("yes") ? true : false); } catch (NullPointerException e) { throw new InputSpreadsheetValueUnassignedException("\"Type\" field not set: " + currentFieldName); } And the method which keeps track of a current field being looked at: private void setCurrentFieldName(String fieldName) { currentFieldName.clear(); currentFieldName.add(fieldName); } The idea there is that if user fails to submit value and i will end up getting null, before throwing an exception, i will know what value was not assigned. So, this being said, specific questions: Is what i have shown below an acceptable solution? Can you suggest something more elegant?

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