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• Passing a custom variable to the PayPal API

  - by Michael

  Gday All, I am developing a site that uses PayPal to take online payments. I need to be able to send my client an email with the link to PayPal in order to pay. In this link I need a way to set a unique value (for example bookingId) that I can use to add the receipt number to the correct booking via PayPal's payment notification feature. Does anyone know what custom value I can set in order to achieve this? Cheers, Michael

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• Python Class which checks input before passing to console (C) program

  - by Joseph Melettukunnel

  Hello, We are asked to write a web-frontend (in python) for a very complex (and old) console application, written in C. Since we have no access to the C Source Code, and we assume that there might be some unsafe methods, we'd like to check the input which will the passed to the console application. WebClient - Python Module - Console Application Do you have any suggestions or tips what we should check for? Right now we are only limiting the string length and filtering some (program specific) unallowed keywords. Thanks, Joseph EDIT: Will remove strings like %s because of format string attacks

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• Ruby: Passing optional objects to method

  - by Sam

  Class TShirt def size(suggested_size) if suggested_size == nil size = "please choose a size" else size = suggested end end end tshirt = TShirt.new tshirt.size("M") == "M" tshirt = TShirt.new size = tshirt.size(nil) == "please choose a size" What is a better way to have optional objects in a method? Procs?

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• A Tab Exception Message

  - by Kooper

  06-14 00:21:30.398: ERROR/AndroidRuntime(332): Caused by: java.lang.RuntimeException: Your content must have a TabHost whose id attribute is 'android.R.id.tabhost' what it means? I've already given the id for tabhost.And I can see the id in R.java. Here is the .xml: TabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent" LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp" TabWidget android:id="@+id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" FrameLayout android:id="@+id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp" LinearLayout TabHost

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• Uploadify - Passing Information Back to The Original Form

  - by CccTrash

  I have an Send.aspx page that has an uploadify control on it. Upload.ashx handles the file upload. I am adding a file record to a sql database in the Upload.ashx file and I need to get the ID of that record back from Upload.aspx when it is done. Can't get it working with Sessions. =( Something to do with an Adobe bug? What would the best way to handle this be? Here is the uploadify control: <script type="text/javascript"> // <![CDATA[ var contestID = $('[id$=HiddenFieldContestID]').val(); var maxEntries = $('[id$=HiddenFieldMaxEntries]').val(); var userID = $('[id$=HiddenFieldUserID]').val(); $(document).ready(function() { $('#fileInput').uploadify({ 'uploader': '../uploadify/uploadify.swf', 'script': '../uploadify/Upload.ashx', 'scriptData': { 'contestID': contestID, 'maxEntries': maxEntries, 'userID': userID }, 'cancelImg': '../uploadify/cancel.png', 'auto': true, 'multi': false, 'fileDesc': 'Image Files', 'fileExt': '*.jpg;*.png;*.jpeg', 'queueSizeLimit': 1, 'sizeLimit': 4000000, 'buttonText': 'Choose Image', 'folder': '/uploads', 'onAllComplete': function(event, queueID, fileObj, response, data) { document.getElementById('<%= ButtonCleanup.ClientID %>').click(); } }); }); // ]]></script> Edit: See Answer below... Video Tutorial from start to finish: http://casonclagg.com/articles/6/video-tutorial-uploadify-asp-net-c-sharp.aspx

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• "first time here?" message with django

  - by panchicore

  Hi, Im writing an app that will display the register view depending if is first time visitor. What and How is the better way to do this with Django? thxs.

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• How to find cause and of the SocketException with message that an established connection was aborted

  - by cdpnet

  Hi All, I know the similar question may have been asked many times, but I want to represent the behavior I'm seeing and find if somebody can help predict the cause of this. I am writing a windows service which connects to other windows service over TCP. There are 100 user entities of this, and 5 connections per each. These users perform their tasks using their individual connections. The application goes on withough seeing this problem for 1 or 2 days. Or sometimes show the problem right after starting (-rarely). The best run I had was like 4 to 5 days without showing this exception. And after that application died or I had to stop it for various reasons. I want to know what can be causing this? Here is the stacktrace. System.IO.IOException: Unable to write data to the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size) --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size) at System.Net.Security._SslStream.StartWriting(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security._SslStream.ProcessWrite(Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.Write(Byte[] buffer, Int32 offset, Int32 count)

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• link_to passing paramater and display problem - tag feature - Ruby on Rails

  - by bgadoci

  I have gotten a great deal of help from KandadaBoggu on my last question and very very thankful for that. As we were getting buried in the comments I wanted to break this part out. I am attempting to create a tag feature on the rails blog I am developing. The relationship is Post has_many :tags and Tag belongs_to :post. Adding and deleting tags to posts are working great. In my /view/posts/index.html.erb I have a section called tags where I am successfully querying the Tags table, grouping them and displaying the count next to the tag_name (as a side note, I mistakenly called the column containing the tag name, 'tag_name' instead of just 'name' as I should have) . In addition the display of these groups are a link that is referencing the index method in the PostsController. That is where the problem is. When you navigate to /posts you get an error because there is no parameter being passed (without clicking the tag group link). I have the .empty? in there so not sure what is going wrong here. Here is the error and code: Error You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.empty? /views/posts/index.html.erb <% @tag_counts.each do |tag_name, tag_count| %> <tr> <td><%= link_to(tag_name, posts_path(:tag_name => tag_name)) %></td> <td>(<%=tag_count%>)</td> </tr> <% end %> PostsController def index @tag_counts = Tag.count(:group => :tag_name, :order => 'updated_at DESC', :limit => 10) @posts=Post.all(:joins => :tags,:conditions=>(params[:tag_name].empty? ? {}: { :tags => { :tag_name => params[:tag_name] }} ) ) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @posts } format.json { render :json => @posts } format.atom end end

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• Passing integer lists in a sql query, best practices

  - by Artiom Chilaru

  I'm currently looking at ways to pass lists of integers in a SQL query, and try to decide which of them is best in which situation, what are the benefots of each, and what are the pitfalls, what should be avoided :) Right now I know of 3 ways that we currently use in our application. 1) Table valued parameter: Create a new Table Valued Parameter in sql server: CREATE TYPE [dbo].[TVP_INT] AS TABLE( [ID] [int] NOT NULL ) Then run the query against it: using (var conn = new SqlConnection(DataContext.GetDefaultConnectionString)) { var comm = conn.CreateCommand(); comm.CommandType = CommandType.Text; comm.CommandText = @" UPDATE DA SET [tsLastImportAttempt] = CURRENT_TIMESTAMP FROM [Account] DA JOIN @values IDs ON DA.ID = IDs.ID"; comm.Parameters.Add(new SqlParameter("values", downloadResults.Select(d => d.ID).ToDataTable()) { TypeName = "TVP_INT" }); conn.Open(); comm.ExecuteScalar(); } The major disadvantages of this method is the fact that Linq doesn't support table valued params (if you create an SP with a TVP param, linq won't be able to run it) :( 2) Convert the list to Binary and use it in Linq! This is a bit better.. Create an SP, and you can run it within linq :) To do this, the SP will have an IMAGE parameter, and we'll be using a user defined function (udf) to convert this to a table.. We currently have implementations of this function written in C++ and in assembly, both have pretty much the same performance :) Basically, each integer is represented by 4 bytes, and passed to the SP. In .NET we have an extension method that convers an IEnumerable to a byte array The extension method: public static Byte[] ToBinary(this IEnumerable intList) { return ToBinaryEnum(intList).ToArray(); } private static IEnumerable<Byte> ToBinaryEnum(IEnumerable<Int32> intList) { IEnumerator<Int32> marker = intList.GetEnumerator(); while (marker.MoveNext()) { Byte[] result = BitConverter.GetBytes(marker.Current); Array.Reverse(result); foreach (byte b in result) yield return b; } } The SP: CREATE PROCEDURE [Accounts-UpdateImportAttempts] @values IMAGE AS BEGIN UPDATE DA SET [tsLastImportAttempt] = CURRENT_TIMESTAMP FROM [Account] DA JOIN dbo.udfIntegerArray(@values, 4) IDs ON DA.ID = IDs.Value4 END And we can use it by running the SP directly, or in any linq query we need using (var db = new DataContext()) { db.Accounts_UpdateImportAttempts(downloadResults.Select(d => d.ID).ToBinary()); // or var accounts = db.Accounts .Where(a => db.udfIntegerArray(downloadResults.Select(d => d.ID).ToBinary(), 4) .Select(i => i.Value4) .Contains(a.ID)); } This method has the benefit of using compiled queries in linq (which will have the same sql definition, and query plan, so will also be cached), and can be used in SPs as well. Both these methods are theoretically unlimited, so you can pass millions of ints at a time :) 3) The simple linq .Contains() It's a more simple approach, and is perfect in simple scenarios. But is of course limited by this. using (var db = new DataContext()) { var accounts = db.Accounts .Where(a => downloadResults.Select(d => d.ID).Contains(a.ID)); } The biggest drawback of this method is that each integer in the downloadResults variable will be passed as a separate int.. In this case, the query is limited by sql (max allowed parameters in a sql query, which is a couple of thousand, if I remember right). So I'd like to ask.. What do you think is the best of these, and what other methods and approaches have I missed?

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• Passing Multiple parameters from Custome WebPart to Reporting services Report Viewer webpart

  - by venkatcitigori

  I working with Reporting services in Sharepoint Mode, I am able to show the report in Sql Server Reporting services report viwer , the report has multiple parameters , My question is how do I pass more thatn one parameter from a custome web part to this report. I am able to pass one parameter by implementing the ITransformableFilterValues interface in the custom webpart , what I want to do is pass more than one parameter . Ex: If there are 2 parameters on report then i should able to map each from the control in webpart. Any help or guidance is appreciated.

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• WiX - Passing parameters to a CustomAction (DLL)

  - by glenneroo

  I've got a DLL from an old WiSE installer that i'm trying to get working in WiX, so i'm pretty sure the DLL works with MSI-based installers. Here is my definition: <Binary Id="SetupDLL" SourceFile="../Tools/Setup.dll" /> <CustomAction Id="ReadConfigFiles" BinaryKey="SetupDLL" DllEntry="readConfigFiles" /> and usage: <Publish Dialog="InstallDirDlg" Control="Next" Event="DoAction" Value="ReadConfigFiles" Order="3">1</Publish> Where exactly can I pass in parameters?

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• Passing a string in Html.ActionLink in MVC 2

  - by 109221793

  I have completed the MVC Music Store application, and now am making my own modifications for practice, and also to prepare me to do similar tasks in my job. What I have done, is create a view that displays the current list of users. I have done this as I want to be able to change the passwords of users should they forget them. Here is a snippet from my view: <% foreach (MembershipUser user in Model) { %> <tr> <td><%: Html.ActionLink(user.UserName, "changeUserPassword", "StoreManager", new { username = user.UserName }) %></td> <td><%: user.LastActivityDate %></td> <td><%: user.IsLockedOut %></td> </tr> <% }%> What I want to know, is it possible to pass the username through the actionlink as I have done above. I have registered the following route in the global.asax.cs file, however I am unsure if I have done it correctly: routes.MapRoute( "AdminPassword", //Route name "{controller}/{action}/{username}", //URL with parameters new { controller = "StoreManager", action = "changeUserPassword", username = UrlParameter.Optional }); Here is my GET action: public ActionResult changeUserPassword(string username) { ViewData["username"] = username; return View(); } I have debugged through the code to find that ViewData["username"] = username doesn't populate so it looks like either I have not registered the routes properly, or I simply cannot pass the username using the actionlink like I have. I'd be grateful if someone could point me in the right direction.

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• Adding rows to UItableview and passing data between Viewcontrollers

  - by Jonathan

  I have a list of websites in a plist, when the app loads this populates a tableview (which is inside a navigation controller) But I have added an add button to the navigation bar and then created another View Controller to deal with inputting of the new website (Like Title and URL). It is very similar to how the contacts app looks. There is a table view and when you tap add, the add UI slides up. I have got all this working great so far. My Problem is what happens when the user taps Done. I can add the website to the plist (each website is a dictionary in the plist with 2 keys, atm) But then how do I tell the tableView to update? The table view has not been removed from the main window, just the add view has been added on top of the "screen". Another way of asking is, when you tap Save on Add a Contact screen: (not my image) How does the new contact's data (Xyz's data) get shown on the tableview?

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• invalid property id error while passing data in json format

  - by robezy

  I have a some data in JSON format(which comes from php) to be passed to a javascript function. I'm getting 'invalid property id' error when I try to do this. Error: invalid property id Source File: http://localhost/MathVoyager/index.php/test Line: 1, Column: 15 Source Code: draw_quadratic({ Below is the js function signature(both data and options are in JSON format) function draw_quadratic(data, options, alpha, beta) Below is a sample function call. `draw_quadratic({"label":"(((1)*x^((1))+(4))*((1)*x^((1))+(6))) = (0)","data":[[-8,8],[-7.5,5.25],[-7,3],[-6.5,1.25],[-6,0],[-5.5,-0.75],[-5,-1],[-4.5,-0.75],[-4,0],[-3.5,1.25],[-3,3],[-2.5,5.25],[-2,8]],"xaxis":1,"yaxis":1}, {"series":{"points":{"show":true},"lines":{"show":true}},"grid":{"hoverable":true,"clickable":true}}, 4, 8); ` (I'm trying to plot some graph using flot js library) Thanks in advance

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• Passing context between templatetags, django

  - by Kasper Gadensgaard

  Hi overflowers, I am using django to create a web-application. I have created a template in where I load a templatetag. In this templatetag i load another templatetag. From the template I pass context to the first templatetag, but the context is not available from the second templatetag (inside the first templatetag) - see below. I hope this makes sense, and that one of you have the answer. Thanks in advance Regards Kasper Gadensgaard Template snippit: {% load templatetags %} {% some_tag argument %} some_tag Templatetag: {% load templatetags %} {% some_other_tag another_argument %} some_other_tag Templatetag: In this templatetag i am trying to access context to get user info i.e. using request = context['request'] request.user

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• passing a fortran int array to C++ by calling C++ function in fortran

  - by cppb

  hi, I am trying to call a C++ function in FORTRAN subroutine. This C+ function is supposed to update an integer array. Here is a non-working code I wrote. Can someone please let me know what the issue is: ! FORTRAN function that calls a C++ function subroutine my_function() integer(4) ar(*) integer(4) get_filled_ar ! Need correct syntax here. ar = get_filled_ar() end // C++ function: extern "C" { void get_filled_ar(int *ar){ ar[0] = 1; ar[1] = 10; ar[3] = 100; } }

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• WCF - Passing CurrentPrincipal in the Header

  - by David Ward

  I have a WCF service that needs to know the Principal of the calling user. In the constructor of the service I have: Principal = OperationContext.Current.IncomingMessageHeaders.GetHeader<MyPrincipal>("myPrincipal", "ns"); and in the calling code I have something like: using (var factory = new ChannelFactory<IMyService>(localBinding, endpoint)) { var proxy = factory.CreateChannel(); using (var scope = new OperationContextScope((IContextChannel)proxy)) { var customHeader = MessageHeader.CreateHeader("myPrincipal", "ns", Thread.CurrentPrincipal); OperationContext.Current.OutgoingMessageHeaders.Add(customHeader); newList = proxy.CreateList(); } } This all works fine. My question is, how can I avoid having to wrap all proxy method calls in the using (var scope...{ [create header and add to OperationContext]? Could I create a custom ChannelFactory that will handle adding the myPrincipal header to the operation context? Something like that would save a whole load of copy/paste which I'd rather not do but I'm not sure how to achieve it:) Thanks

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• Custom IIdentity and passing data from an attribute to a controller

  - by DM

  Here's my scenario: I've successfully created a custom IIdentity that I pass to a GenericPrincipal. When I access that IIdentity in my controller I have to cast the IIdentity in order to use the custom properties. example: public ActionResult Test() { MyCustomIdentity identity = (MyCustomIdentity)User.Identity; int userID = identity.UserID; ...etc... } Since I need to do this casting for nearly every action I would like to wrap this functionality in an ActionFilterAttribute. I can't do it in the controller's constructor because the context isn't initialized yet. My thought would be to have the ActionFilterAttribute populate a private property on the controller that I can use in each action method. example: public class TestController : Controller { private MyCustomIdentity identity; [CastCustomIdentity] public ActionResult() { int userID = identity.UserID; ...etc... } } Question: Is this possible and how? Is there a better solution? I've racked my brain trying to figure out how to pass public properties that are populated in an attribute to the controller and I can't get it.

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• Japanese text garbled while passing to a http restlet service

  - by satish-gunuputi

  Hi , I have a perl client which is calling a http restlet service (put method). Some of the parameters in this call contain japanese text. when I printed the contents of these request parameters in the restlet service I found these chars garbled ! This is my PERL client code: my %request_headers = ( 'DocumentName' => $document_name, --> This name is a JAPANESE String 'DocumentDescription' => 'Test Japanese Chars', 'content-length' => 200, 'Content-Type' => 'application/octet-stream; charset=utf-8', 'User-Agent' => "JPCharTester", ); $s-write_request('PUT', '/test-document/TEST/TEST_DOCUMENT' , %request_headers, $content); in this call both the values of $context and $document_name are JAPANESE Strings. But ONLY the document_name is received as garbled in my backend service. Here goes the Service code: String URL_ENCODING = "UTF-8"; String documentName = requestHeaders.getFirstValue("DocumentName"); System.out.println("Encoded Document Name : "+documentName+" <<<"); --> documentName is garbled here try { documentName = URLDecoder.decode(documentName, URL_ENCODING); System.out.println(>>> Decoded Document Name : "+documentName+" <<<"); --> documentName is garbled here } catch (java.io.UnsupportedEncodingException ex) { throwException(ex.getMessage(), Status.SERVER_ERROR_INTERNAL, ex); } both the above log statements printed GARBLED TEXT !! Can someone tell me what is the mistake I am doing and how to fix this ? Thanks in advance for your help. Regards, Satish.

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• Passing a NSArray between classes

  - by Althane

  So, my second question based off of this application I'm teaching myself Objective C with. I have a Data Source class, which for now looks mostly like: - (id) init { if (self = [super init]){ listNames = [[NSArray alloc] initWithObjects: @"Grocery", @"Wedding", @"History class",@"CS Class",@"Robotics",@"Nuclear Sciences", @"Video",@"Library",@"Funeral", nil]; NSLog(@"%@",listNames); } return self; } The .h looks as follows: @interface MainViewDataSource : NSObject { NSArray *listNames; } @property (nonatomic, retain) NSArray *listNames; -(NSArray *)getListNames; So that's where I make it. Now the problem is that when I try to get the array listNames, it returns nothing. The following piece: NSArray* data = [listData listNames]; Is supposed to put the information in listNames in data, but... isn't. Since I'm rather used to JAva, I'm betting this is an Objective C quirk that I don't know how to fix. Which is why I'd be here asking for help. What's the proper way to pass around NSArrays like this?

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• Passing Values between Web User Controls

  - by Tarik

  Hi, I've several web user controls on my asp.net page and I wanna pass values between them. For example : There is a dropDownList in one of them and when user selects any item from dropDownList, it can pass the selected value to the other user control which includes GridView to show related data of selected item value from the user control which contains the dropdownlist. (woow pretty awkward sentence tho) Thanks and Regards.. P.s : Can we use User controls as class in the way to return values ?

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• Passing a SAFEARRAY from C# to COM

  - by SlavaGu

  I use 3rd party COM to find faces in a picture. One of the methods has the following signature, from SDK: long FindMultipleFaces( IUnknown* pIDibImage, VARIANTARG* FacePositionArray ); Parameters: pIDibImage[in] - The image to search. FacePositionArray[out]- The array of FacePosition2 objects into which face information is placed. This array is in a safe array (VARIANT) of type VT_UNKNOWN. The size of the array dictates the maximum number of faces for which to search. which translates into the following C# method signature (from metadata): int FindMultipleFaces(object pIDibImage, ref object pIFacePositions); Being optimistic I call it the following way but get an exception that the memory is corrupt. The exception is thrown only when a face is present in the image. FacePosition2[] facePositions = new FacePosition2[10]; object positions = facePositions; int faceCount = FaceLocator.FindMultipleFaces(dibImage, ref positions); What's the right way to pass SAFEARRAY to unmanaged code?

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• How to receive WM_GETMINMAXINFO message in a BHO (C#)

  - by simil

  I am trying to build an IE BHO in C#. I would like to receive the WM_GETMINMAXINFO messages sent to the internet explorer window in which my BHO is running. How can this be done? Thanks, simil

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• PHP DOTNET - Passing Constructor Parameters to a C# Class

  - by n3wtz

  This seems like it should be a fairly straightforward question, but I can't find an answer anywhere. I'm using php's DOTNET class to instantiate a class from a .dll created with C#. The constructor of that class requires a couple of parameters. How to I pass them? Other Info: This is currently on Windows, and I've registered the .dll with the GAC, etc.

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• Passing html parameters to server odd problem

  - by StealthRT

  Hey all i am having a weird problem with sending data back to my server. This is the code i am using: NSString *theURL =[NSString stringWithFormat:@"http://www.xxx.com/confirm.asp?theID=%@&theName=%@&empID=%@&theComp=%@", theConfirmNum, tmpNBUserRow.userName, labelTxt.text, theID]; NSLog(@"%@,%@,%@,%@", theConfirmNum, tmpNBUserRow.userName, labelTxt.text, theID); NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:theURL]]; [request setHTTPMethod:@"POST"]; NSError *error; NSURLResponse *response; NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding]; if ([data isEqualToString:@"Done"]) I can run the code from the browser and it works just fine using the data i got from the NSLog output. The NSLog output for each value is correct. But for some reason when i put a break on the IF ([data isEqualToString:@"Done"]) it has no return value. I checked each value for what it was sending (and again, it was correct in the NSLog output) and i found that the value "theID" said "Out of scope". Although, again, the NSLog had the value in it correctly? So i searched the forum and found a simular problem. I took their advice and added "RETAIN" to the "theID" value like so: theID = [customObjInstance TID]; [theID retain]; However, that did not solve the issue... Here is the console NSLog output: [Session started at 2010-04-11 01:31:50 -0400.] wait_fences: failed to receive reply: 10004003 wait_fences: failed to receive reply: 10004003 nbTxt(5952,0xa0937500) malloc: *** error for object 0x3c0ebc0: double free *** set a breakpoint in malloc_error_break to debug 2010-04-11 01:32:12.270 nbTxt[5952:207] 5122,Rob S.,5122,NB010203 The NSLog values i am sending is the last line "5122,Rob S.,5122,NB010203" Any help would be great :o) David

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