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• twitter api is throwing exception "# is not a valid value for Int32" while getting freinds

  - by vakas

  i am using the api twitterizer.framework while getting the friends of a user the api starts throwing this error. "# is not a valid value for Int32. --- System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: startIndex at System.ParseNumbers.StringToInt(String s, Int32 radix, Int32 flags, Int32* currPos) at System.Convert.ToInt32(String value, Int32 fromBase) at System.ComponentModel.Int32Converter.FromString(String value, Int32 radix) at System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) --- End of inner exception stack trace --- at System.ComponentModel.BaseNumberConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) at System.ComponentModel.TypeConverter.ConvertFromString(ITypeDescriptorContext context, CultureInfo culture, String text) at System.Drawing.ColorConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) at System.ComponentModel.TypeConverter.ConvertFromString(String text) at System.Drawing.ColorTranslator.FromHtml(String htmlColor) at Twitterizer.Framework.TwitterRequest.ParseUserNode(XmlNode element) in C:\Projects\twitterizer\Twiterizer.Framework\TwitterRequest.cs:line 514 at Twitterizer.Framework.TwitterRequest.ParseUsers(XmlElement element) in C:\Projects\twitterizer\Twiterizer.Framework\TwitterRequest.cs:line 483 at Twitterizer.Framework.TwitterRequest.ParseResponseData(TwitterRequestData data) in C:\Projects\twitterizer\Twiterizer.Framework\TwitterRequest.cs:line 305" how to handle this?

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• problem with iterate over java.util.Map using "JSF" OR JSTL TAGS

  - by New-To-Java

  I'm using Richfaces jsf and I want to iterate over an Map<Object,Object>. I see many examples on sun forums and other sites but in my case it doesn't work ! here is my xhtml code : <c:forEach items="#{order.customOptions}" var="option"> <h:outputText value="this text does not print"/> <h:outputText value="#{option.value.name}" /> <h:outputText value="#{option.value.key}" /> </c:forEach> and the "order" object is of type "Order". "customOptios" is of type Map<CustomOption,CustomOptionValue> and when I create an javascript alert on to print '#{order.customeOptions}' it's content is true. but it's not even enter in c:forEach loop. please heeeeelp me :(

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• metaclass multiple inheritance inconsistency

  - by Matt Anderson

  Why is this: class MyType(type): def __init__(cls, name, bases, attrs): print 'created', cls class MyMixin: __metaclass__ = MyType class MyList(list, MyMixin): pass okay, and works as expected: created <class '__main__.MyMixin'> created <class '__main__.MyList'> But this: class MyType(type): def __init__(cls, name, bases, attrs): print 'created', cls class MyMixin: __metaclass__ = MyType class MyObject(object, MyMixin): pass Is not okay, and blows up thusly?: created <class '__main__.MyMixin'> Traceback (most recent call last): File "/tmp/junk.py", line 11, in <module> class MyObject(object, MyMixin): pass TypeError: Error when calling the metaclass bases Cannot create a consistent method resolution order (MRO) for bases object, MyMixin

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• Cancel Leave Event when closing

  - by DiegoMaK

  I have got a textbox on a form with a method being called from the txPredio_Leave event. My problem is that is the user has focus on the textbox and then close the form by clicking the little X close icon in the top corner or by calling this.ActiveMdiChild.Close(); or by calling private void mnucerrarTodas_Click(object sender, EventArgs e) { foreach (Form form in this.MdiChildren) { form.Close(); } } The txPredio leave execute the method.. then i need doesn't excute this method when the form is closing. i have think that one solution could be ask in leave event if form is closing private void txPredio_Leave(object sender, EventArgs e) { if(!form is closing)//pseudo code Check_Load_Predio(); } or other solution could be private void MainForm_FormClosing(object sender, FormClosingEventArgs e) { //code for cancel the txPredio_Leave event } Solution Here Doesn´t work for me. Then I need one solution for my problem. Thanks in advance

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• Session Management in Axis1.2

  - by venkat

  Hi, In our application we are using Axis1.2. Our service has one instance variable profileDataManager which is responsible to return set of profiles. The application has pagination to display only 25 profiles at a time. My requirement is the profileDataManager should be instantiated only once for respective client. On subsequent calls, it should use the existing object. For this i need the one service object should be created for user session.If a client sends another request, the service object created in previous call should be returned. On client side i am using Flex. In CXF webserice, my requirement is fulfilled with an annotation '@HttpSessionScope'. Is there away that i can get the abovementioned behavior in Axis? I have given the following trials. but no success added and modified the java client stub.setMaintainSession(true); The above didn't work for me.

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• Solved::MessageQueue.BeginReceive() null ref error - c#

  - by ltech

  Have a windows service that listens to a msmq. In the OnStart method is have this protected override void OnStart(string[] args) { try { _queue = new MessageQueue(_qPath);//this part works as i had logging before and afer this call //Add MSMQ Event _queue.ReceiveCompleted += new ReceiveCompletedEventHandler(queue_ReceiveCompleted);//this part works as i had logging before and afer this call _queue.BeginReceive();//This is where it is failing - get a null reference exception } catch(Exception ex) { EventLogger.LogEvent(EventSource, EventLogType, "OnStart" + _lineFeed + ex.InnerException.ToString() + _lineFeed + ex.Message.ToString()); } } where private MessageQueue _queue = null; This works on my machine but when deployed to a windows 2003 server and running as Network service account, it fails Exception recvd: Service cannot be started. System.NullReferenceException: Object reference not set to an instance of an object. at MYService.Service.OnStart(String[] args) at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state) Solved: Turned out that the Q that i set up, I had to explicitly add Network Service account to it under security tab

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• How do you implement file drag-and-drop upload in Google Chrome?

  - by Chris R

  I've found several tutorials online about implementing file drag/drop with Firefox 3.6 (they involve using a FileReader object to get the file binary data). However, I cannot create a FileReader object in Chrome on Windows or Mac. Does anyone know what the API is to read and manipulate data from a drag-and-dropped file in Chrome? If I can get the binary data of the file, I already have the rest of the code to perform the upload. Note: I've also tried using the getAsBinary() function call on the file object of the drag event (event.dataTransfer.file) but I believe that is a Mozilla-specific function and not implemented in Chrome. Also, I'm not interested in a solution using google gears or one that requires a user to select files from a dialog. I'm specifically trying to implement a drag-and-drop file upload.

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• Can't connect to shared folders anymore?

  - by HuskyHuskie

  My home server is running Windows Server 2008 R2. I've had it running for almost a year now without any issues with shared folders. This past week I had an issue with my modem which required it to be power cycled and with that I power cycled my router. After that I haven't been able to connect to my shared network folders. I have no idea why that would even cause an issue as I've power cycled my networking equipment in the past without issues and none of my settings appear to have been lost. I am mapping these drives on my Windows 7 Ultimate machine using "Map Network Drive", from there I enter \\SERVER\Storage as I'm trying to connect to my shared folder named Storage. I receive the following error every time I try mapping the drive: Windows cannot access \\Server\Storage Check the spelling of the name. Otherwise there might be a problem with your network. To try to identify and resolve network problems, click Diagnose. Details: Error code: 0x80070035 The network path was not found. When I click Diagnose I get the following: Problems found file and print sharing resource (SERVER) is online but isn't responding to connection attempts. The remote computer isn't responding to connection on port 445, possibly due to firewall or security policy settings, or because it might be temporarily unavailable. Windows couldn't find any problems with the firewall on your computer. I've tried this from multiple computers with the same issue too. To resolve the problems so far I've tried: Disabling the firewall on SERVER Reinstalling File Services Modifying NetBT\Parameters registry values Adding a custom inbound rule for port 445 Adding port forwarding on my router for port 445 Recreating the shared folders Checking and rechecking the shared folder permissions. Resetting my user account password on the server used to access the shared folder. I'm pulling my hair out with this problem mainly because it came out of nowhere. It was working fine the night before and the next day it just stopped working. Any ideas of what I could try next are much appreciated. It should also be noted that this server is used as a web server too and that functionality still works correctly.

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• GAE Entity Groups/Transaction

  - by bach

  Hi, Say you have a Client Buying Card object and a product object. When the client chooses the buy opition you create the object and then add a product. It should be transactional but it's not on the same entity group as the product and the card already been persisted, isn't it? Is there any way to overcome this simple scenario safely and easily? here's a code sample: Transaction tx = pm.currentTransaction(); tx.begin(); Product prod = pm.getObjectById(Product.class, "TV"); prod.setReserved(true); pm.makePersistent(prod); Card card = pm.getObjectById(Card.class, "user123"); /// <--- will thorw an exception as card and prod aren't on the same entity group card.setProd(prod); pm.makePersistent(card); try { tx.commit(); break; }

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• C# Login Dialog Implementation

  - by arc1880

  I have implemented a LoginAccess class that prompts the user to enter their active directory username and password. Then I save the login data as an encrypted file. Every subsequent start of the application, the LoginAccess class will read the encrypted file and check against the active directory to see if the login information is still valid. If it is not, then it will prompt the user again. I have made it so that the reading of the encrypted file and displaying of the login dialog is done on a separate thread. A delegate is fired when the login process is complete. The issue that I'm having is that I have a class that is used in multiple places. This class contains the call to the LoginAccess object. Every time I instantiate a new object there are multiple calls to the LoginAccess object and I get multiple dialogs appearing when it tries to prompt for a username and password. Any suggestions on how to have only one dialog appear would be greatly appreciated.

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• using Dependency Parser in Stanford coreNLP

  - by Eddie Dovzhik

  I am using the Stanford coreNLP ( http://nlp.stanford.edu/software/corenlp.shtml ) in order to parse sentences and extract dependencies between the words. I have managed to create the dependencies graph like in the example in the supplied link, but I don't know how to work with it. I can print the entire graph using the toString() method, but the problem I have is that the methods that search for certain words in the graph, such as getChildList, require an IndexedWord object as a parameter. Now, it is clear why they do because the nodes of the graph are of IndexedWord type, but it's not clear to me how I create such an object in order to search for a specific node. For example: I want to find the children of the node that represents the word "problem" in my sentence. How I create an IndexWord object that represents the word "problem" so I can search for it in the graph?

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• How do I display two different objects in a search?

  - by JZ

  github url I am using a simple search that displays search results: @adds = Add.search(params[:search]) In addition to the search results I'm trying to utilize a method, nearbys(), which displays objects that are close in proximity to the search result. The following method displays objects which are close to 2, but it does not display object 2. How do I display object 2 in conjunction with the nearby objects? @adds = Add.find(2).nearbys(10) While the above code functions, when I use search, @adds = Add.search(params[:search]).nearbys(10) a no method error is returned, undefined methodnearbys' for Array:0x30c3278` How can I search the model for an object AND use the nearbys() method AND display all results returned? Model: def self.search(search) if search find(:all, :conditions => ['address LIKE ?', "%#{search}%"]) # where('address LIKE ?', "%#{search}") else find(:all) end end

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• Cannot load JRubyEngine because org.apache.bsf.util.BSFEngineImpl not found

  - by Ceilingfish

  Hi, I'm trying to use JRuby in a custom application, and I don't seem to be able to load the JRubyEngine object. My class looks like functionally similar to this: public class ScriptEngine { private static ScriptEngine engine = new JRubyEngine(); public void run(final String script, final Map<String,Object> input) { final Bindings context = engine.createBindings(); context.putAll(input); try { engine.eval(script,context); } catch (ScriptException e) { log.error("Failed to execute script: "+getScript(),e); } } } However this fails at compilation with the complaint: [javac] Compiling 486 source files to /workspace/myProject/build/src [javac] /workspace/myProject/src/net/ceilingfish/ScriptEngine.java:31: cannot access org.apache.bsf.util.BSFEngineImpl [javac] class file for org.apache.bsf.util.BSFEngineImpl not found [javac] private static ScriptEngine engine = new JRubyEngine(); [javac] ^ [javac] 1 error Does anyone have any insights on where I can get this class from? Or if there is a better way to be instantiating a JRubyEngine object.

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• VS 2003 Application Hang

  - by Vijay Bobba

  have installed VS 2003 in my XP VM, which was shared from a remote drive, after installing, when I tried to open new windows application, the IDE freezes, I have tried it many times, repairing, uninstalling .net 1.1 and VS 2003 and again install, mapping the share drive to my local, etc., After all these trials I was left with no option I know... Any help on this is highly appriciated. Thnaks, Vijay.

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• Django foreign keys cascade deleting and "related_name" parameter (bug?)

  - by Wiseman

  In this topic I found a good way to prevent cascade deleting of relating objects, when it's not neccessary. class Factures(models.Model): idFacture = models.IntegerField(primary_key=True) idLettrage = models.ForeignKey('Lettrage', db_column='idLettrage', null=True, blank=True) class Paiements(models.Model): idPaiement = models.IntegerField(primary_key=True) idLettrage = models.ForeignKey('Lettrage', db_column='idLettrage', null=True, blank=True) class Lettrage(models.Model): idLettrage = models.IntegerField(primary_key=True) def delete(self): """Dettaches factures and paiements from current lettre before deleting""" self.factures_set.clear() self.paiements_set.clear() super(Lettrage, self).delete() But this method seems to fail when we are using ForeignKey field with "related_name" parameter. As it seems to me, "clear()" method works fine and saves the instance of "deassociated" object. But then, while deleting, django uses another memorized copy of this very object and since it's still associated with object we are trying to delete - whooooosh! ...bye-bye to relatives :) Database was arcitectured before me, and in somewhat odd way, so I can't escape these "related_names" in reasonable amount of time. Anybody heard about workaround for such a trouble?

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• Django admin causes high load for one model...

  - by Joe

  In my Django admin, when I try to view/edit objects from one particular model class the memory usage and CPU rockets up and I have to restart the server. I can view the list of objects fine, but the problem comes when I click on one of the objects. Other models are fine. Working with the object in code (i.e. creating and displaying) is ok, the problem only arises when I try to view an object with the admin interface. The class isn't even particularly exotic: class Comment(models.Model): user = models.ForeignKey(User) thing = models.ForeignKey(Thing) date = models.DateTimeField(auto_now_add=True) content = models.TextField(blank=True, null=True) approved = models.BooleanField(default=True) class Meta: ordering = ['-date'] Any ideas? I'm stumped. The only reason I could think of might be that the thing is quite a large object (a few kb), but as I understand it, it wouldn't get loaded until it was needed (correct?).

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• Unpacking Argument Lists and Instantiating WTForms objects from web.py

  - by Morris Cornell-Morgan

  After a bit of searching, I've found that it's possible to instantiate a WTForms object in web.py using the following code: form = my_form(**web.input()) web.input() returns a "dictionary-like" web.storage object, but without the double asterisks WTForms will raise an exception: TypeError: formdata should be a multidict-type wrapper that supports the 'getlist' method From the Python documentation I understand that the two asterisks are used to unpack a dictionary of named arguments. That said, I'm still a bit confused about exactly what is going on. What makes the web.storage object returned by web.input() "dictionary-like" enough that it can be unpacked by ** but not "dictionary-like" enough that it can be passed as-is to the WTForms constructor? I know that this is an extremely basic question, but any advice to help a novice programmer would be greatly appreciated!

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• Generic function to handle DataType Conversion

  - by Tommo1977

  I have the following function in C#, that I want to pass a MySQL DataReader value/object. If the value of the object passed is a DBNull I need to handle it and return a Null value of that data type e.g null int. Otherwise I want to convert the returned value like Convert.ToInt32(value) or similar. public static T ConvertFromDB<T>(object value) { return value == DBNull.Value ? default(T) : (T)value; } Can anyone offer any help on this ?

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• Email attachment problem

  - by Alan Harris-Reid

  Hi there, I want to send an email with an attachment using the following code (Python 3.1) (greatly simplified to show the example) from email.mime.multipart import MIMEMultipart from email.mime.text import MIMEText msg = MIMEMultipart() msg['From'] = from_addr msg['To'] = to_addr msg['Subject'] = subject msg.attach(MIMEText(body)) fp = open(att_file) msg1 = MIMEText(fp.read()) attachment = msg1.add_header('Content-Disposition', 'attachment', filename=att_file) msg.attach(attachment) # set string to be sent as 3rd parameter to smptlib.SMTP.sendmail() send_string = msg.as_string() The attachment object msg1 returns 'email.mime.text.MIMEText' object at ', but when the msg1.add_header(...) line runs the result is None, hence the program falls-over in msg.as_string() because no part of the attachment can have a None value. (Traceback shows "'NoneType' object has no attribute 'get_content_maintype'" in line 118 of _dispatch in generator.py, many levels down from msg.as_string()) Has anyone any idea what the cause of the problem might be? Any help would be appreciated. Alan Harris-Reid

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• Network Volumes Keep Changing Names OSX

  - by Koobz

  It seems everytime I reconnect network volumes, my drives cycle through names like /Volumes/user, /Volumes/user~1, /Volumes/user~2 Is there any way to stop this? I just want the name of a network volume to stay the same so that I don't have to keep re-mapping things when I reconnect the drive.

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• How to include associative table information and still retain strong typing

  - by mwright

  I am using LINQ to SQL to create strongly typed objects in my project. Let's say I have an object that is represented by a database table. This object has a "Current State" that is kept in an associative table. I would like to make a single db call where I pull back the two tables joined but am unsure how I should be populating that information into some sort of object to preserve strong typing within my model so that the view using the information can just consume the information from the objects. I looked into creating a view model for this but it doesn't seem to quite fit. Am I thinking about this in the wrong way? What information can I include to help clarify my problem? Other details that may or may not be important: It's an MVC project....

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• JPA : Inheritance - Discriminator value not taken into account in generated SQL

  - by Julien

  I try to use this mapping : @Entity @Table(name="ecc.\"RATE\"") @Inheritance(strategy=InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(name="DISCRIMINATOR", discriminatorType= DiscriminatorType.STRING) public abstract class Rate extends GenericBusinessObject { ... } @Entity @DiscriminatorValue("E") public class EntranceRate extends Rate { @ManyToOne @JoinColumn(name = "\"RATES_GRID_ID\"") protected RatesGrid ratesGrid; ... } @Entity @Table(name="ecc.\"RATES_GRID\"") public class RatesGrid extends GenericBusinessObject { /** */ @OneToMany(mappedBy = "ratesGrid", targetEntity = EntranceRate.class, fetch=FetchType.LAZY) private List<EntranceRate> entranceRates; } When I try to access my entranceRates list from a ratesGrid object, I get this error : Object with id: 151 was not of the specified subclass: com.ecc.bo.rate.EntranceRate (loaded object was of wrong class class com.ecc.bo.rate.AnnualRate) Looking at the sql generated, I found no trace of "discriminator=" in the where clause. What am I doing wrong ? I use a PostGreSQL database and a Hibernate as JPA provider.

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• Network Diagramming software options?

  - by Zak

  I've used The Dude to map my network, but I can only export the network map as a graphics file. I've also used Dia and Vision to manually diagram portions of my network. Does anyone out there have a solution where I can do automatic network mapping using a tool like "The Dude", then pull that file over to a manually editable format for cleaning up and/or enhancing in Visio or Dia?

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• Best practice for copying private instance vars with NSCopying

  - by Ben

  I might be missing something obvious here, but I'm implementing NSCopying on one of my objects. That object has private instance variables that are not exposed via getters, as they shouldn't be used outside the object. In my implementation of copyWithZone:, I need alloc/init the new instance, but also set up its state to match the current instance. I can obviously access current private state from inside copyWithZone:, but I can't set it into the new object, because there are no accessors for that state. Is there a standard way around this while still keeping data privacy intact? Thanks.

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• JavaScript function binding (this keyword) is lost after assignment

  - by Ding

  this is one of most mystery feature in JavaScript, after assigning the object method to other variable, the binding (this keyword) is lost var john = { name: 'John', greet: function(person) { alert("Hi " + person + ", my name is " + this.name); } }; john.greet("Mark"); // Hi Mark, my name is John var fx = john.greet; fx("Mark"); // Hi Mark, my name is my question is: 1) what is happening behind the assignment? var fx = john.greet; is this copy by value or copy by reference? fx and john.greet point to two diferent function, right? 2) since fx is a global method, the scope chain contains only global object. what is the value of this property in Variable object?

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