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• parsing xml attribute value

  - by vbNewbie

  I have been parsing xml content using the xmlreader and cannot use the xml document but so far it works getting all elementcontent except for the attribute contents. I need to parse the link below found in the following entry; <title>XXXX UUUUUU posted a</title> <category term="NotePosted" label="Note Posted"/> <link rel="alternate" type="html" href="http://www.dfsddsfdsf.com/profile.php?id=sdfdfsfdsdfddfsfd&amp;v=wall&amp;story_dbid=dssdfasdfdasfdsafafafa"/> <source>......... <source> I need the href tag in the link attribute but it keeps coming back null. While ureader.Read If ureader.HasAttributes Then fId = ureader.GetAttribute("href") If fId.Contains("?v=wall&amp") Then fIdList.Add(fId) Exit While End If If String.IsNullOrEmpty(fId) Then fId = "NOTHING" End If End If End While

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• Updating .class file in a jar throws exception

  - by CheesePls

  I'm trying to port a wikimedia plugin to run on OpenVMS and needed to alter a class. I'm trying to update the .class file in the jar using jar uf jar-file .class-file, however when I do this I get the following: java.util.zip.ZipException: duplicate entry: META-INF/LICENSE.txt at java.util.zip.ZipOutputStream.putNextEntry(ZipOutputStream.java:175) at java.util.jar.JarOutputStream.putNextEntry(JarOutputStream.java:90) at sun.tools.jar.Main.update(Main.java:507) at sun.tools.jar.Main.run(Main.java:184) It turns out there are 2 LICENSE.txt files in the jar and I can't seem to get rid of them. Any ideas on how to just get the new .class file into the jar or how to get rid of the duplicate file?

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• Why do I have a page hit for 404.php after each legitimate pagehit?

  - by Nathan Long

  I'm working with an intranet system that, on each page, checks the user's cookie, verifies that they can see the current page based on database permissions, and records a page hit that includes their id and the page URL. I just noticed that in the pagehits table, I see an entry for 404.php (my custom 404 page specified in the Apache config) one second after each legitimate page hit. Is this probably my fault, or does it have something to do with how Apache decides to load the 404 page? I'm using Apache 2.2.14 (Win32) and PHP 5.3.2.

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• concatenating results from SQL query and NULL columns

  - by Curtis

  I need to concatenate several columns of a table into a single value, then show that value in an asp dropdownlist. The SQL code I'm issuing is as follows: SELECT UserID, CustomerNum, UserName + ' - ' + UserAddress + ',' + UserCity + ' ' + UserState AS UserInfo FROM Users WHERE (CustomerNum = @CustomerNum) ORDER BY UserName I then set 'UserInfo' as the text field in the dropdownlist. This generally works, except occasionally one of the columns in the database is null (for example, UserState). When that happens, the entire concatenation is null, and I get an empty entry in the dropdownlist. Is there something in SQLServer that will allow me to ignore those NULL results, or will I have to code something up in the DataBind event? Thanks

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• Unexpected key-value behavior in a Core Data Context

  - by ????

  If I create an array of strings (via key-value coding) containing the names of a Managed Object entity's attributes which are stored in the App Delegate the first time, I get an array of NSStrings without any problems. If I subsequently make the same call later from the same entry point in code, that same collection becomes an array of NULL objects- even though nothing in the Core Data Context has changed. One unappealing work-around involves re-creating the string array every time, but I'm wondering if anyone has a guess as to what's happening behind the scenes. // Return an array of strings with the names of attributes the Activity entity - (NSArray *)activityAttributeNames { #pragma mark ALWAYS REFRESH THE ENTITY NAMES? //if (activityAttributeNames == nil) { // Create an entity pointer for Activity NSEntityDescription *entity = [NSEntityDescription entityForName:@"Activity" inManagedObjectContext:managedObjectContext]; NSArray *entityAttributeArray = [[NSArray alloc] initWithArray:[[entity attributesByName] allValues]]; // Extract the names of the attributes with Key-Value Coding activityAttributeNames = [entityAttributeArray valueForKeyPath:@"name"]; [entityAttributeArray release]; //} return activityAttributeNames; }

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• [PHP] - Lowering script memory usage in a "big" file creation

  - by Riccardo

  Hi there people, it looks like I'm facing a typical memory outage problem when using a PHP script. The script, originally developed by another person, serves as an XML sitemap creator, and on large websites uses quite a lot of memory. I thought that the problem was related due to an algorithm holding data in memory until the job was done, but digging into the code I have discovered that the script works in this way: open file in output (will contain XML sitemap entries) in the loop: ---- for each entry to be added in sitemap, do fwrite close file end Although there are no huge arrays or variables being kept in memory, this technique uses a lot of memory. I thought that maybe PHP was buffering under the hood the fwrites and "flushing" data at the end of the script, so I have modified the code to close and open the file every Nth record, but the memory usage is still the same.... I'm debugging the script on my computer and watching memory usage: while script execution runs, memory allocation grows. Is there a particular technique to instruct PHP to free unsed memory, to force flushing buffers if any? Thanks

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• select command in mysql doesnot return any row

  - by jeyshree

  i created a database using the command CREATE TABLE login_table2(user_name VARCHAR(32), first_name VARCHAR(32), last_name VARCHAR(32), password VARCHAR(64)); then i inserted a data using command INSERT INTO login_table2(user_name ,first_name , last_name , password ) VALUES('ramya', 'ramya', 'muthu', 'India'); the data got inserted into the table. then i inserted another set of data using command INSERT INTO login_table2(user_name ,first_name , last_name , password ) VALUES('jeyshree', 'jey', 'shree', 'India'); the data got inserted into the table too. then i gave the command SELECT first_name FROM login_table2; the command displayed all the first_ name in the table. however when i gave the command SELECT password FROM login_table2 WHERE user_name = 'ramya'; it does not fetch anything though the entry exist in the table.mention where i am going wrong.awaiting your reply.

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• Should I use threeten instead of joda-time

  - by Yan Cheng CHEOK

  Hello all, I came across http://www.jroller.com/scolebourne/entry/why_jsr_310_isn_t. 1) I am currently migrating Java Calendar to joda-time. I was wondering, should I use threeten instead of joda-time? Is threeten production ready? 2) Can threeten library and joda-time libraries exist together in a same application? As I am using some 3rd parties libraries, which is using joda-time library too. 3) Will joda-time become an abandon project since there is threeten? Thanks.

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• Threading errors with Application.LoadComponent (key already exists)

  - by Kellls

  MSDN says that public static members of System.Windows.Application are thread safe. But when I try to run my app with multiple threads I get the following exception: ArgumentException: An entry with the same key already exists. at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.SortedList`2.Add(TKey key, TValue value) at System.IO.Packaging.Package.AddIfNoPrefixCollisionDetected(ValidatedPartUri partUri, PackagePart part) at System.IO.Packaging.Package.GetPartHelper(Uri partUri) at System.IO.Packaging.Package.GetPart(Uri partUri) at System.Windows.Application.GetResourceOrContentPart(Uri uri) at System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties) at System.Windows.Application.LoadComponent(Uri resourceLocator) The application works fine on a single thread and even on two or three. When I get up past 5 then I get the error every time. Am I doing something wrong? What can I do to fix this?

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• Check something before django server starts

  - by Vijay Shankar Kalyanaraman

  I am running my api behind a django server and say I have a one time token that is needed by the django application and used through out its existence until the process quits. To check if I can proceed and serve requests (using the django server) I need to validate this token against a database entry. Now, I can have a script that hits the db, then issues the run server command if the token is valid. But if the db used by the django applications change, I will have to change the script also to point to the same db. Is there a way I can pass this token into the runserver command as an additional parameter (along with hostname:port) and validate this before django serves any requests? How can I access this parameter that is sent into ./manage.py runserver. Thanks.

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• How should I be storing objects that I wish to access in reverse order of the way I placed them in

  - by andrew hicks

  I'm following this guide here: http://www.mazeworks.com/mazegen/mazetut/index.htm Or more specficially create a CellStack (LIFO) to hold a list of cell locations set TotalCells = number of cells in grid choose a cell at random and call it CurrentCell set VisitedCells = 1 while VisitedCells < TotalCells find all neighbors of CurrentCell with all walls intact if one or more found choose one at random knock down the wall between it and CurrentCell push CurrentCell location on the CellStack make the new cell CurrentCell add 1 to VisitedCells else pop the most recent cell entry off the CellStack make it CurrentCell endIf endWhile Im writing this in java, My problem is. How should I be storing my visited cells, So that I can access them from reverse order of when I placed them in. Like this? List<Location> visitedCells = new ArrayList<Location>(); Then do I grab with visitedCells.get(visitedCells.size()-1)? Location stores the x, y and z. Not something Im trying to ask you.

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• Action method expected parameter named Id and nothing otherwise

  - by codingbiz

  The Error The parameters dictionary contains a null entry for parameter 'UserId' of non-nullable type 'System.Int64' for method 'System.Web.Mvc.ActionResult Predict(Int64)' in 'sportingbiz.Controllers.PredictionController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter. Parameter name: parameters This does not work. Throws the error mentioned above http://mysite/User/Profile/15 This works http://mysite/User/Profile/?UserID=15 The Controller Action public ActionResult Profile(long UserID) { } When I changed the parameter name to Id it works. I think it's because Id was specified in the route collection (Global.asax). Is it possible to tell MVC that UserId should map to Id without changing it in the Global.asax

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• SSPI Errors for SQL Server Authentication?!

  - by Nathan

  We have several old ASP and PHP web applications which use SQL Server Authentication. Periodically, all the applications lose the ability to connect to our SQL Server 2000 database server, getting access denied. Corresponding to roughly the same times, we are getting 1115 Cannot generate SSPI Context SQLSTATE HY000 errors on the SQLServer 2000 server. And here's the weird part - rebooting the web server fixes the problem. Rebooting the database server has no effect. This makes no sense to me - I didn't think SSPI was in any way involved with SQL Server Authentication. Any ideas? Edit: Some additional details: The web server is in the DMZ. The hosts file on the web server has an entry for the database server (and the ip address is correct), so the web server (theoretically at least) shouldn't even be going to DNS to connect to the database server. It does not appear to be a firewall issue.

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• In SQL How do I copy values from one table to another based on another field's value?

  - by Joshua1729

  Okay I have two tables VOUCHERT with the following fields ACTIVATIONCODE SERIALNUMBER VOUCHERDATADBID UNAVAILABLEAT UNAVAILABLEOPERATORDBID AVAILABLEAT AVAILABLEOPERATORDBID ACTIVATIONCODENEW EXT1 EXT2 EXT3 DENOMINATION -- I added this column into the table. and the second table is VOUCHERDATAT with the following fields VOUCHERDATADBID BATCHID VALUE CURRENCY VOUCHERGROUP EXPIRYDATE AGENT EXT1 EXT2 EXT3 What I want to do is copy the corresponding VALUE from VOUCHERDATAT and put it into DENOMINATION of VOUCHERT. The linking between the two is VOUCHERDATADBID. How do I go about it? It is not a 1:1 mapping. What I mean is there may be 1000 SERIALNUMBERS with a same VOUCHERDATADBID. And that VOUCHERDATADBID has only entry in VOUCHERDATAT, hence one value. Therefore, all serial numbers belonging to a certain VOUCHERDATADBID will have the same value. Will JOINS work? What type of JOIN should I use? Or is UPDATE table the way to go? Thanks for the help !!

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• In MS Access is there a way to allow forms to update while maintaning Read Only

  - by Alex

  I have several forms linked tables via queries. The form pull data such as sales and ratios by selecting a product from the main's form's combo box. I am however having to issues: 1- I would ultimately prefer the combo box to be a free entry; however by just entering in the box and hitting enter (not a button called “enter on a screen” which would initiate recalcs, just normal enter), while it does bring the new information in sub-forms it also changes the information in the original table. If I make the table read only that it just doesn't allow the form to work by saying that the table is read only. 2- The same Read only issue occurs when another user with read only rights tries to use the database. I understand that ready only is functioning as intended, however I am wondering if there is way to make some functions work while disallowing the updating. I am unfortunately learning on the go, so go easy plz. Thank you

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• What is "helpx_last_check" from wordpress database

  - by bvandrunen

  I am a developer who works full time with wordpress and I came across something in my database which I have never seen before. I tried the normal search engine approach and have found nothing. Wondering if the wonderful people of stackoverflow have seen this before. I am pretty sure it isn't harmful. This is the entry in the mysql database. Table is "_options" option_id: 1165 blog_id: 0 option_name: helpx_last_check option_value: 1276628545 autoload: yes I am specifically wondering what "helpx_last_check" is. Thanks

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• How long does a MailItem.Property[myProperty] live?

  - by Darien Ford

  I'm writing a TransportAgent for Exchange and want to tag a MailItem with some identifying information. The MailItem class seems to have this functionality with the MailItem.Properties property; however, my question is to the length of time an entry would remain available. e.g. e.MailItem.Properties.Add(new KeyValuePair<string,object>("MyKey", "myValue")); After this MailItem is delivered to the correct mailbox, if someone were to reply to the email, would the newly created reply retain that set value? I think while writing this question out I have answered it for myself (which rationally would be no) but any practical experience and insight would be appreciated.

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• What is the best file format to parse?

  - by anxiety

  Scenario: I'm working on a rails app that will take data entry in the form of uploaded text-based files. I need to parse these files before importing the data. I can choose the file type uploaded to the app; the software used by those uploading has several export options regarding file type. While it may be insignificant, I was wondering if there is a specific file type that is most efficiently parsed. This question can be viewed as language-independent, I believe. (While XML is commonly parsed, it is not a feasible file type for sake of this project.)

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• Error using \Glsentrytext{} in section title.

  - by amicitas

  When using the glossaries package in a LaTeX document I occasionally want to use a glossary entry as part of section or chapter title. For example: \section{\Glsentrytext{big}} This however results in an error. Trying to use \protect\Glsentrytext{} does not solve the the problem. Note that using the non-capitalized version (\glsentrytext) does not produce any problems. Does anyone know of a way to get this to work? I use the glossaries package occasionally as way to format specific strings in a consistent way. For example \gls{big} turns into 'beam-into-gas'. Obviously I could create two glossary entries, with and without caps, to achieve this and only include one in the final glossary. That is an ugly solution though.

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• [LaTex]: Add in the TOC an included PDF

  - by ILoveMyLatexReport

  In my document I include a PDF using \includepdf[pages=-]{./mypdf.pdf} The problem I'm having is how to add a TOC entry for this pdf. It supposed to be an appendix. I tried adding a new section in the appendix but of course the section name can't be printed on the same page than the included pdf, so the resulting TOC line directs to a wrong page. if I use \addcontentsline I loose the numbering and the page is wrong too because the included pdf actually starts at the next page... I'm a bit lost here so I would really appreciate if someone knows how to do this. note: the pdf I try to include was not generated from LaTex. Thanks in advance.

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• Removing groups of similar records in MySQL query

  - by user1182155

  I'm trying to wrap my head around this... (it may be simple, been a long day!) I have a database with sometimes multiple similar records... ie. Apples 2008-09-03 Apples 2012-01-01 Apples 2013-10-24 Oranges 2012-01-04 What I need to do is do a query that will show only records that haven't been updated today... So in this case, since Apples has an entry that was updated today, none of the records for the Apples should appear in the results. Oranges should be the only record it returns. I have a query similar to this... SELECT fruit FROM fruitnames where date < CURDATE() Which works to remove the record that was updated today... But it keeps the other records for Apples (obviously)... How would I remove those results as well?

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• innerHTML yielding undefined, but correct data is visible

  - by Mike Dyer

  var Model,node; document.getElementById('sedans').innerHTML=''; var thismodelabbr,prevmodelabbr; for(var j=0; j<xmlDoc.getElementsByTagName('data').length; j++){ node = xmlDoc.getElementsByTagName('data')[j]; thismodelabbr=node.getAttribute('model'); if(prevmodelabbr!=thismodelabbr){ Model+='<a href="">'+ node.getAttribute('model')+'</a>'; } prevmodelabbr=thismodelabbr; document.getElementById('sedans').innerHTML=Model; } The above javascript snippet is working correctly and as needed, but I'm getting an "Undefined" response before the entry is displayed within its respective page. I'm assuming it has to do with the .innerHTML call. Any insight would be deeply appreciated.

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• converting ID to column name and also replacing NULL with last known value.

  - by stackoverflowuser

  TABLE_A Rev ChangedBy ----------------------------- 1 A 2 B 3 C TABLE_B Rev Words ID ---------------------------- 1 description_1 52 1 history_1 54 2 description_2 52 3 history_2 54 Words column datatype is ntext. TABLE_C ID Name ----------------------------- 52 Description 54 History OUTPUT Rev ChangedBy Description History ------------------------------------------------ 1 A description_1 history_1 2 B description_2 history_1 3 C description_2 history_2 Description and History column will have the previous known values if they dont have value for that Rev no. i.e. Since for Rev no. 3 Description does not have an entry in TABLE_B hence the last known value description_2 appears in that column for Rev no. 3 in the output.

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• Combining XmlSerializer and XmlWriter?

  - by num3ric

  In addition to a list of objects I am serializing to an xml file using C#'s XmlSerializer, I would like to store a few more independent elements (mainly strings from textboxes) in the same xml. public static void SaveBehaviors(ObservableCollection<Param> listParams) { XmlSerializer _paramsSerializer = new XmlSerializer(listParams.GetType()); string path = Environment.GetFolderPath(Environment.SpecialFolder.Desktop); path += "\\test.xml"; using (TextWriter writeFileStream = new StreamWriter(path)) { _paramsSerializer.Serialize(writeFileStream, listParams); using (XmlWriter writer = XmlWriter.Create(writeFileStream)) { writer.WriteStartElement("Foo"); //test entry... writer.WriteAttributeString("Bar", "Some & value"); writer.WriteElementString("Nested", "data"); writer.WriteEndElement(); } } } However, deserializing "test.xml" results in an error because of the added element. I suppose writing in the serialized xml file is prohibited and should be avoided?

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• Copy Paste is Disabled in Property Grid

  - by ofarooq

  Hi All, I have a FileNameEditor inside a property grid, which has a few entries like Main File : "C:\blah1" Sec File: "C:\blah2" and so on. My problem is that I cannot copy and paste from one property entry to another, and I cannot type in the fields manually as well. Is there a specific property that will enable editing inside the FileNameEditor. Example public class MyEditor : FileNameEditor { public override bool GetPaintValueSupported(ITypeDescriptorContext context) { return false; } public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value) { object e = base.EditValue(context, provider, value); if ((value as MyFileS) != null) { (value as MyFilesS).FileName = (String) e; } return e; } protected override void InitializeDialog(OpenFileDialog openFileDialog) { base.InitializeDialog(openFileDialog); } } Thanks

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