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  • Problem with linq-to-xml

    - by phenevo
    I want by linq save my xml in csv and I have o problem. This bracket are here beacuse without it this code is not displaying (why ? ) bracket results bracket <Countries country="Albania"><Regions region="Centralna Albania"><Provinces province="Durres i okolice"><Cities city="Durres" cityCode="2B66E0ACFAEF78734E3AF1194BFA6F8DEC4C5760"><IndividualFlagsWithForObjects Status="1" /><IndividualFlagsWithForObjects Status="0" /><IndividualFlagsWithForObjects magazyn="2" /></Cities></Provinces></Regions></Countries><Countries .... XDocument loaded = XDocument.Load(@"c:\citiesxml.xml"); // create a writer and open the file TextWriter tw = new StreamWriter("c:\\XmltoCSV.txt"); // Query the data and write out a subset of contacts var contacts = (from c in loaded.Descendants("Countries") select new { Country = (string)c.Element("Country"), Region = (string)c.Element("region"), Province= (string)c.Element("province"), City = (string)c.Element("city"), Hotel = (string)c.Element("hotel") }).ToList(); Problem is that loaded.Descendants("Countries") gives me 45 countries but all fields are null.

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  • DynamicMethod NullReferenceException

    - by Jeff
    Can anyone tell me what's wrong with my IL code here? IL_0000: nop IL_0001: ldarg.1 IL_0002: isinst MyXmlWriter IL_0007: stloc.0 IL_0008: ldloc.0 IL_0009: ldarg.2 IL_000a: ldind.ref IL_000b: unbox.any TestEnum IL_0010: ldfld Int64 value__/FastSerializer.TestEnum IL_0015: callvirt Void WriteValue(Int64)/System.Xml.XmlWriter IL_001a: nop IL_001b: ret I'm going crazy here, since I've written a test app which does the same thing as above, but in C#, and in reflector the IL code from that looks just like my DynamicMethod's IL code above (except my test C# app uses a TestStruct with a public field instead of the private value field on the enum above, but I have skipVisibility set to true)... I get a NullReferenceException. My DynamicMethod's signature is: public delegate void DynamicWrite(IMyXmlWriter writer, ref object value, MyContract contract); And I'm definitely not passing in anything null. Thanks in advance!

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  • how to listen for changes in Contact Database

    - by hap497
    Hi, I am trying to listen for any change in the contact database. So I create my contentObserver which is a child class of ContentObserver: private class MyContentObserver extends ContentObserver { public MyContentObserver() { super(null); } @Override public void onChange(boolean selfChange) { super.onChange(selfChange); System.out.println (" Calling onChange" ); } } MyContentObserver contentObserver = new MyContentObserver(); context.getContentResolver().registerContentObserver (People.CONTENT_URI, true, contentObserver); But When I use 'EditContactActivity' to change the contact database, My onChange function does not get called.

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  • debugging loadwith has subnodes in domainservice, but not when called in viewmodel

    - by Jakob
    Hi, I'm trying to use the .LoadWith method I have these lines of code in my domainservice: public IEnumerable<Subject> GetSubjectList(Guid userid) { DataLoadOptions loadopts = new DataLoadOptions(); loadopts.LoadWith<Subject>(s => s.Notes); this.DataContext.LoadOptions = loadopts; return this.DataContext.Subjects; } I can see debugging that a list of subjects get loaded, and that the Subjects.Notes property which is a List is also populated with subitems, but when I do ctx.Load(ctx.GetSubjectListQuery(WebContext.Current.User.UserId), lo => { serverdata = ctx.Subjects; }, null); I only get a flat list of subjects loaded into serverdata, and no note subitems are loaded to subject.notes

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  • Display PDF in Html

    - by anil
    Hi, i want to show PDF in a view in MVC, following function return file public ActionResult TakeoffPlans(string projID) { Highmark.BLL.Models.Project proj = GetProject(projID); List ff = proj.GetFiles(Project_Thin.Folders.CompletedTakeoff, false); ViewData["HasFile"] = "0"; if (ff != null && ff.Count 0 && ff.Where(p = p.FileExtension == "pdf").Count() 0) { ViewData["HasFile"] = "1"; } ViewData["ProjectID"] = projID; ViewData["Folder"] = Project_Thin.Folders.CompletedTakeoff; //return View("UcRenderPDF"); string fileName = Server.MapPath("~/Content/Project List Update 2.pdf"); return File(fileName, "application/pdf", Server.HtmlEncode(fileName)); } but it display some bad data in view, please help me on this

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  • identifying the type

    - by Gokul
    Hi, In my application, there is a inheritance hierarchy in which only the classes that are at the end of the inheritance chain are non-abstract classes. Also there is some usage of boost::variant. I want to write a function which takes a pointer and a Type and says whether the object belongs to that type. For example template< typename Type, bool TypeisAbstract, typename ptrType > bool checkType( ptrType* t) { return ( typeid(*t) == typeid(Type) ); } template< typename Type, typename ptrType > bool checkType<Type, true, ptrType>( ptrType* t) { return ( dynamic_cast<Type*>(t) != NULL ); } Now if there is a boost variant, i want to find out whether the boost variant stores that particular type. Can someone help me with that? Thanks, Gokul.

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  • Sharepoint UpdateList Method : Newly created Columns are not visible.

    - by Pari
    Hi, I worked on code .It is working successfully. But Problem i am facing is: New Columns are not visible in List ( I tried with With Setting Required = "TRUE" ). I tried with compairing Field Value of Both Visible and No-Visible Columns. Difference i found is : Visible Columns (Created Manually) doesn't contain Version value. wereas columns i am creating have it. So i tried with passing null value to "ndVersion.Value". But it is still not working and automaticaly putting some value to version. Can you help me out in this? I tried Solution given Here . But it din't Worked again. :(

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  • Bash: using commands as parameters (specificly cd, dirname and find)

    - by sixtyfootersdude
    This command and output: % find . -name file.xml 2> /dev/null ./a/d/file.xml % So this command and output: % dirname `find . -name file.xml 2> /dev/null` ./a/d % So you would expect that this command: % cd `dirname `find . -name file.xml 2> /dev/null`` Would change the current directory to ./a/d. Strangely this does not work. When I type cd ./a/d. The directory change works. However I cannot find out why the above does not work...

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  • Type-safe, generic, empty Collections with static generics

    - by Droo
    I return empty collections vs. null whenever possible. I switch between two methods for doing so using java.util.Collections: return Collections.EMPTY_LIST; return Collections.emptyList(); where emptyList() is supposed to be type-safe. But I recently discovered: return Collections.<ComplexObject> emptyList(); return Collections.<ComplexObject> singletonList(new ComplexObject()); etc. I see this method in Eclipse Package Explorer: <clinit> () : void but I don't see how this is done in the source code (1.5). How is this magic tomfoolerie happening!!

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  • php, mySQL - how to create a table?

    - by user296516
    Hi guys, I have written a code that should check weather there is a table called imei.$addimei and, if not, create it... $userdatabase = mysqli_connect('localhost', 'root', 'marina', 'imei'); ... $result = mysqli_query($userdatabase, "SELECT * FROM imei".$addimei."" ); if ( !$result ) { echo('creating table...'); /// if no such table, make one! mysql_query ( $userdatabase, 'CREATE TABLE imei'.$addimei.'( ID int NOT NULL AUTO_INCREMENT, PRIMARY KEY(ID), EVENT varchar(15), TIME varchar(25), FLD1 varchar(35), FLD2 varchar(35), IP varchar(25), )' ); } Yet the CREATE TABLE somehow doesn't seem to work. Warning: mysql_query() expects parameter 1 to be string, object given in C:\xampp\xampp\htdocs\mobi\mainmenu.php on line 564 Any idea's what wrong? Thanks!

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  • All words in a trie data-structure

    - by John Smith
    I'm trying to put all words in a trie in a string, a word is detonated by the eow field being true for a certain character in the trie data structure, hence a trie can could have letters than lead up to no word, for ex "abc" is in the trie but "c"'s eow field is false so "abc" is not a word Here is my Data structure struct Trie { bool eow; //when a Trie field isWord = true, hence there is a word char letter; Trie *letters[27]; }; and here is my attemped print-all function, basically trying to return all words in one string seperated by spaces for words string printAll( string word, Trie& data) { if (data.eow == 1) return word + " "; for (int i = 0; i < 26; i++) { if (data.letters[i] != NULL) printAll( word + data.letters[i]->letter, *(data.letters[i])); } return ""; } Its not outputting what i want, any suggestions?

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  • Hibernate sequence should only generate when ID is <=0

    - by Tim Leys
    Hi all, I'm using the folowing sequence in my code. (I got the sequence and @Id @SequenceGenerator(name = "S912_PRO_SEQ", sequenceName = "S912_PRO_SEQ", allocationSize = 1) @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "S912_PRO_SEQ") @Column(name = "PRO_ID", unique = true, nullable = false, precision = 9, scale = 0) public int getId() { return this.id; } And using the following sequence / triggers in my DB. CREATE SEQUENCE S912_PRO_SEQ nomaxvalue minvalue 20; CREATE OR REPLACE TRIGGER S912_PRO_B_I_TRG BEFORE INSERT ON S912_project REFERENCING OLD AS OLD NEW AS NEW FOR EACH ROW ENABLE begin IF :NEW.pro_ID IS NULL THEN select S912_PRO_SEQ.nextval into :new.pro_ID from dual; END IF; end; I was wondering if there is a way to let hibernate generate a sequence ONLY if the ID is <=0 (not set) or if the ID already exists. I know for most cases my trigger would fix the situation. But I do not want to rely completely on it. I hope someone can help me out :p

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  • Need to store GridViewDateTimeValue into DateTimePicker

    - by narmadha
    Hi,I am Using Gridview in WindowsApplication.The following is my code: if (dgvList.SelectedRows.Count > 0) { if (dgvList.SelectedRows[0].Cells != null) { DataGridViewRow dr = dgvList.CurrentRow; txtMaterialName.Text = dr.Cells["MaterialName"].ToString(); dateTimePicker1.Text=DateTime.Parse(dr.Cells["PurchasedDate"].ToString()).ToString(); } } i need to store the PurchasedDate into DateTimePicker,But the Error is "The string was not recognized as a valid DateTime. There is a unknown word starting at index 0." Source="mscorlib" StackTrace: at System.DateTimeParse.Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles) at System.DateTime.Parse(String s) at Godwins.EditStockAvailabilty.dgvList_SelectionChanged(Object sender, EventArgs e) Can anyone help me,Thanks in advance.........

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  • C# application per-machine/per-user licensing

    - by MainMa
    Hi, I am about to implement a very basic licensing feature for my application. A serial number may be granted per-machine (or per-operating-system) or per-user (as for CAL in Windows Server: if my application is used by several users on one machine or if it is used by one user on several machines). For per-operating-system licensing, I use SerialNumber of Win32_OperatingSystem. For per-user licensing, I use: WindowsIdentity currentIdentity = WindowsIdentity.GetCurrent(); if (currentIdentity != null) { SecurityIdentifier userSid = currentIdentity.User.AccountDomainSid; Console.WriteLine(userSid); } A hash of an obtained OS serial number or SID is then stored in the database, associated with application serial; each time the program starts, it queries the server, sending hash of OS SN/SID and application serial. Is it a right thing to do it or is it completely wrong? Will it work on every Windows machine? (For example, using motherboard serial is wrong)

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  • Custom Attributes on Class Members

    - by ccook
    I am using a Custom Attribute to define how a class's members are mapped to properties for posting as a form post (Payment Gateway). I have the custom attribute working just fine, and am able to get the attribute by "name", but would like to get the attribute by the member itself. For example: getFieldName("name"); vs getFieldName(obj.Name); The plan is to write a method to serialize the class with members into a postable string. Here's the test code I have at this point, where ret is a string and PropertyMapping is the custom attribute: foreach (MemberInfo i in (typeof(CustomClass)).GetMember("Name")) { foreach (object at in i.GetCustomAttributes(true)) { PropertyMapping map = at as PropertyMapping; if (map != null) { ret += map.FieldName; } } } Thanks in advance!

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  • How to determine if an event is already subscribed

    - by Ram
    Hi, In my .NET application I am subscribing to events from another class. The subscription is conditional. I am subscribing to events when the control is visible and de-subscribing it when it become invisible. However in some conditions I do not want to de-subscribe the event even if the control is not visible as I want the result of an operation which is happening on background thread . Is there any way through which I can determine if a that class has already subscribed to that event. I know we can do it in the class which will raise that event by checking event with null but I don not know how to do it in a class which will subscribe to that event.

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  • C# - Do you use "var"?

    - by Paul Stovell
    C# 3.0 introduces implicitly typed variables, aka the "var" keyword. var daysInAWeek = 7; var paul = FindPerson("Paul"); var result = null as IPerson; Others have asked about what it does or what the problems with it are: http://stackoverflow.com/questions/527685/anonymous-types-vs-local-variables-when-should-one-be-used http://stackoverflow.com/questions/209199/whats-the-point-of-the-var-keyword http://stackoverflow.com/questions/41479/use-of-var-keyword-in-c I am interested in some numbers - do you use it? If so, how do you use it? I never use var (and I never use anonymous types) I only use var for anonymous types I only use var where the type is obvious I use var all the time!

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  • SQL Server: Check if table exists

    - by Vincent
    I would like this to be the ultimate discussion on how to check if a table exists in SQL Server 2000/2005 using SQL Statement. When you Google for the answer, you get so many different answers. Is there an official/backward & forward compatible way of doing it? Here are two ways to start discussion: IF EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE' AND TABLE_NAME='mytablename') SELECT 1 AS res ELSE SELECT 0 AS res; IF OBJECT_ID (N'".$table_name."', N'U') IS NOT NULL SELECT 1 AS res ELSE SELECT 0 AS res; MySQL provides a nice SHOW TABLES LIKE '%tablename%'; statement. I am looking for something similar.

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  • SQL ConnectionString in web.config and global.asax implications

    - by rlb.usa
    This is going to sound very odd, but I have a web.config like this: <connectionStrings> <remove name="LocalSqlServer"/> <add name="LocalSqlServer" connectionString="Data Source=BACKUPDB;..." providerName="System.Data.SqlClient"/> </connectionStrings> And a global.asax like this: void Session_Start(object sender, EventArgs e) { // Code that runs when a new session is started if (Application["con"] == null || Application["con"] == "") { Application["con"] = "Data Source=PRODUCTIONDB;..."; } } And EVERYWHERE in my code, I reference my ConnectionStrings like this: SqlConnection con = new SqlConnection(Convert.ToString(HttpContext.Current.Application["con"])); However, I see that everything I do inside this application goes to BACKUP db instead of PRODUCTIONDB. What is going on, how could this happen, and why? It doesn't make any sense to me, and it got me into a lot of trouble. We use LocalSqlServer string for FormsAuthentication.

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  • Using Session Bean provided data on JSF welcome page

    - by takachgeza
    I use JSF managed beans calling EJB methods that are provide data from database. I want to use some data already on the welcome page of the application. What is the best solution for it? EJBs are injected into JSF managed beans and it looks like the injection is done after executing the constructor. So I am not able to call EJB methods in the constructor. The normal place for EJB call is in the JSF action methods but how to call such a method prior to loding the first page of the application? A possible solution would be to call the EJB method conditionally in a getter that is used on the welcome page, for example: public List getProductList(){ if (this.productList == null) this.productList = myEJB.getProductList(); return this.productList; } Is there any better solution? For example, in some config file?

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  • How to grab data from webpage in Chrome and output into Chrome extension popup?

    - by chimerical
    For a Google Chrome extension, none of the Javascript I write to manipulate the DOM of the extension popup.html seems to have any effect on the popup's DOM. I can manipulate the DOM of the current webpage in the browser just fine by using content_script.js, and I'm interested in grabbing data from the webpage and outputting it into the extension popup, like so (below: popup.html): <div id="extensionpopupcontent">Links</div> <a onclick="click()">Some Link</a> <script type="text/javascript"> function click() { chrome.tabs.executeScript(null, {file: "content_script.js"}); document.getElementById("extensionpopupcontent").innerHTML = variableDefinedInContentScript; window.close(); } </script> I tried using chrome.extension.sendRequest from the documentation at http://code.google.com/chrome/extensions/messaging.html, but I'm not sure how to properly use it in my case, specifically the greeting and the response. contentscript.js ================ chrome.extension.sendRequest({greeting: "hello"}, function(response) { console.log(response.farewell); });

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  • Malloc to a CGPoint Pointer throwing EXC_BAD_ACCESS when accessing

    - by kdbdallas
    I am trying to use a snippet of code from a Apple programming guide, and I am getting a EXC_BAD_ACCESS when trying to pass a pointer to a function, right after doing a malloc. (For Reference: iPhone Application Programming Guide: Event Handling - Listing 3-6) The code in question is really simple: CFMutableDictionaryRef touchBeginPoints; UITouch *touch; .... CGPoint *point = (CGPoint *)CFDictionaryGetValue(touchBeginPoints, touch); if (point == NULL) { point = (CGPoint *)malloc(sizeof(CGPoint)); CFDictionarySetValue(touchBeginPoints, touch, point); } Now when the program goes into the if statement it assigns the 'output' of malloc into the point variable/pointer. Then when it tries to pass point into the CFDictionarySetValue function it crashes the application with: Program received signal: “EXC_BAD_ACCESS”. Someone suggested not doing the malloc and pass the point var/pointer as: &point, however that still gave me a EXC_BAD_ACCESS. What I am (and it looks like Apple) doing wrong??? Thanks in advance.

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  • Access event.target in IE8 unobstrusive Javascript

    - by Mirko
    The following function gets the target element in a dropdown menu: function getTarget(evt){ var targetElement = null; //if it is a standard browser if (typeof evt.target != 'undefined'){ targetElement = evt.target; } //otherwise it is IE then adapt syntax else{ targetElement = evt.srcElement; } //return id of element when hovering over or if (targetElement.nodeName.toLowerCase() == 'li'){ return targetElement; } else if (targetElement.parentNode.nodeName.toLowerCase() == 'li'){ return targetElement.parentNode; } else{ return targetElement; } Needless to say, it works in Firefox, Chrome, Safari and Opera but it does not in IE8 (and I guess in previous versions as well). When I try to debug it with IE8 I get the error "Member not Found" on the line: targetElement = evt.srcElement; along with other subsequent errors, but I think this is the key line. Any help will be appreciated.

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  • Inject a EJB into JAX-RS (RESTfull service)

    - by Zeck
    Hi guys, I'm trying to inject Stateless EJB into my JAX-RS webservice via Annotations. Unfortunately the ejb is just null and I get a NullPointerException when I try to use it. @Path("book") public class BookResource { @EJB private BookEJB bookEJB; public BookResource() { } @GET @Produces("application/xml") @Path("/{bookId}") public Book getBookById(@PathParam("bookId") Integer id) { return bookEJB.findById(id); } } What am I wrong doing? Here are some informations about my machine: Glassfish 3.1 Netbeans 6.9 RC 2 Java EE 6 Can you guys put some working example? And thank you for every advises and examples?

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  • How can change my TabHost ?

    - by enricozhang
    I have a tabhost, e.g: final TabHost tabs = getTabHost(); tabs.setup(); TabHost.TabSpec spec = null; spec = tabs.newTabSpec("search"); spec.setContent(new Intent(this, Search.class)); spec.setIndicator("search"); tabs.addTab(spec); in this tabhost is a Intent,and in the activity must change to other activity, question is I hope the other actitivy at same tabhost switch? Can do this?

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