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  • Is there a way of using one method to handle others to avoid code duplication?

    - by Artur
    I wonder if there is a way of writing a method or a class that would add to any method some code that is shared between many methods. The methods return different things and some of them are just void. Below is a part of the code that is duplicated in the methods. StartTimer(MethodBase.GetCurrentMethod().Name); try { // Actual method body } catch (Exception ex) { bool rethrow = ExceptionPolicy.HandleException(ex, "DALPolicy"); if (rethrow) { throw; } } finally { StopTimer(MethodBase.GetCurrentMethod().Name); } Any help would be greatly appreciated.

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  • How to get Content types

    - by Gaby
    Hi, I'm developing a windows application, that talks to SharePoint via its built in web services, and i want to get all content types available on a SharePoint site, I'm trying to use Web.Webs WebsService = new Web.Webs(); WebsService.Credentials=credentials; WebsService.Url="url of the web service"; XmlNode listOfContentTypes = WebsService.GetContentTypes(); If credentials have administrator privileges i can get the list of all the content types available, But if credentials don't have administrator privileges a 401 exception is thrown (not enought permission). My question is: How can i get all content types available on a SharePoint site if i don't have administrator priviliges?

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  • Castle Windsor - Resolving a generic implementation to a base type

    - by arootbeer
    I'm trying to use Windsor as a factory to provide specification implementations based on subtypes of XAbstractBase (an abstract message base class in my case). I have code like the following: public abstract class XAbstractBase { } public class YImplementation : XAbstractBase { } public class ZImplementation : XAbstractBase { } public interface ISpecification<T> where T : XAbstractBase { bool PredicateLogic(); } public class DefaultSpecificationImplementation : ISpecification<XAbstractBase> { public bool PredicateLogic() { return true; } } public class SpecificSpecificationImplementation : ISpecification<YImplementation> { public bool PredicateLogic() { /*do real work*/ } } My component registration code looks like this: container.Register( AllTypes.FromAssembly(Assembly.GetExecutingAssembly()) .BasedOn(typeof(ISpecification<>)) .WithService.FirstInterface() ) This works fine when I try to resolve ISpecification<YImplementation>; it correctly resolves SpecificSpecificationImplementation. However, when I try to resolve ISpecification<ZImplementation> Windsor throws an exception: "No component for supporting the service ISpecification'1[ZImplementation, AssemblyInfo...] was found" Does Windsor support resolving generic implementations down to base classes if no more specific implementation is registered?

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  • NetDataContractSerialization throwing deserialization error

    - by htanias
    hi, I have methods which return interface and some methods which accepts interface as parameters. I am trying to use Net DataContractSerializer but I am getting following error... The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:id. The InnerException message was 'Error in line 1 position 120. XML 'Element' 'http://tempuri.org/:id' does not contain expected attribute 'http://schemas.microsoft.com/2003/10/Serialization/:Type'. The deserializer has no knowledge of which type to deserialize. Check that the type being serialized has the same contract as the type being deserialized.'. Please see InnerException for more details. Please help me how to resolve this error.... If I use Netdatacontract attribute on Operation Contract, can i use DataContract and Datamember attribute on serializable class??? Thanks in advance...

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  • Inheriting from class that inherits from DynamicObject

    - by SeveQ
    Hello there, I'm experimenting with C# 4.0's dynamic object model. I've created an abstract class named "Block" that inherits from DynamicObject. It overrides TryGetMember and TrySetMember. Furthermore I've created a usable class named "Brush" that inherits from "Block". I want it to be usable dynamically. But when I create a dynamic object from it and try to access a runtime bound member, it pelts me with an exception telling me that the member doesn't exist. The overridden TryGetMember or TrySetMember methods of the abstract parent class aren't getting called. Is this behaviour to be expected? Thank you!

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  • Using RouteExistingFiles to block access to existing files even if no route exists

    - by Michael Stum
    In ASP.net MVC 2, I can use routes.RouteExistingFiles = true; to send all requests through the routing system, even if they exist on the file system. Usually, this ends up hitting the "{controller}/{action}/{id}" route and throws an exception as the controller cannot be found. I do not want to use that route though (I have only a few URLs and they are specifically mapped), yet I would still like to prevent access to the file system. Basically I want to Whitelist pages using IgnoreRoute. Is there a built-in way to do this? My current approach is to still have the "{controller}/{action}/{id}" route and generate a 404 when this is hit, but I'm just wondering if something is built-in already?

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  • Http 404: Not Found (WebException)

    - by Rajeev
    Hi, I am using a console app/class library to invoke a asp.net web service. The class library queries the database and sends the data to the web service. What I notice is that when the amount of data is huge (with 20 columns and 18K records), i get a HTTP 404: Not Found exception from the web service. I have tried increasing the maxReqeustLength and executionTimeout properties in the httpRuntime tag in the web.config of the web service. Is there any thing that I can do to overcome this? Thanks, Rajeev

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  • C# Linq Entity Conversion Error on Nonexistent Value?

    - by Ryan
    While trying to query some data using the Linq Entity Framework I'm receiving the following exception: {"Conversion failed when converting the varchar value '3208,7' to data type int."} The thing that is confusing is that this value does not even exist in the view I am querying from. It does exist in the table the view is based on, however. The query I'm running is the following: return context.vb_audit_department .Where(x => x.department_id == department_id && x.version_id == version_id) .GroupBy(x => new { x.action_date, x.change_type, x.user_ntid, x.label }) .Select(x => new { action_date = x.Key.action_date, change_type = x.Key.change_type, user_ntid = x.Key.user_ntid, label = x.Key.label, count = x.Count(), items = x }) .OrderByDescending(x => x.action_date) .Skip(startRowIndex) .Take(maximumRows) .ToList(); Can somebody explain why LINQ queries the underlying table instead of the actual view, and if there is any way around this behavior?

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  • WCF - WebReferences not working

    - by JMSA
    At the client end, I have generated a Proxy using SvcUtil.exe and it is working fine. Then I have added a WebReference to the client assembly and calling the same method. But it is not working. My program is running in console mode and the method is suppose to return a string. It is not returning the string. I just see a blank console window. No exception is thrown. And after setting a debug point on the method call I see that, program is halted on the method call for ever. What should I look for to solve the problem? I am using VS2005. And adding the webReference by right-clicking the client project and then clicking "Add Web Reference" pop-up menu.

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  • Core Data fetchedresultscontroller question : what is "sections" for?

    - by Jake
    Hi, I'm trying to get to know Core Data (I'm a noob at iPhone development) and in order to do this I'm trying to get an object from the fetchedresultscontroller and NSlog it's name (a property of the object). I tried to do it like this: NSArray *ar = [NSArray arrayWithArray:[fetchedResultsController sections]]; Task *t = [ar objectAtIndex:0]; NSLog(@"%@", t.taskName); However, the app crashed with this error: the app crashes with the error Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[_NSDefaultSectionInfo taskName]: unrecognized selector sent to instance 0x3d1f670' I have since learned that you need to use the fetched objects property for this, but then what is sections for? Thanks for any help, sorry if this is a supremely stupid question. I've looked over the documentation but still don't understand.

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  • Visual studio asp.net code behind file not showing errors

    - by Mahesh
    Hi, I am developing a web application in which I am suddenly facing an issue. I have a webpage which contains many controls, one of the control is JQuery color picker. Now, I am upgrading my system with telerik controls. As part of this process, I replaced textbox(txtcolor) with radcolorpicker with a different id(colorPicker). Suddenly, my code behind file is not throwing any errors like 'unable to find txtColor'. It is running successfully without build errors. But, when I open the page, system is throwing runtime exception(txtColor not found) which is correct. I tried to change other controls with asp.net controls, still the problem persists. So, I dont think it is anything to do with telerik. Could you please let me know how can fix this issue?? Thanks, Mahesh

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  • SubSonic: MySqlDataReader closes connection.

    - by SchlaWiener
    I am using SubSonic 2.1 and entcountered a problem while executing a Transaction with SharedDbConnectionScope and TransactionScope. The problem is that in the obj.Save() method I get an "The connection must be valid and open" exception I tracked down the problem to this line: // Loads a SubSonic ActiveRecord object User user = new User(User.Columns.Username, "John Doe"); in this Constructor of the User class a method "LoadParam" is called which eventually does if (rdr != null) rdr.Close(); It looks like the rdr.Close() implicitly closes my connection which is fine when using the AutomaticConnection. But during a transaction it is usally not a good idea to close the connection :-) My Question is if this is by design or if it's an error in the MySqlDataReader.

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  • ado.net managing connections

    - by madlan
    Hi, I'm populating a listview with a list of databases on a selected SQL instance, then retrieving a value from each database (It's internal product version, column doesn't always exist) I'm calling the below function to populate the second column of the listview: item.SubItems.Add(DBVersionCheck(serverName, database.Name)) Function DBVersionCheck(ByVal SelectedInstance As String, ByVal SelectedDatabase As String) Dim m_Connection As New SqlConnection("Server=" + SelectedInstance + ";User Id=sa;Password=password;Database=" + SelectedDatabase) Dim db_command As New SqlCommand("select Setting from SystemSettings where [Setting] = 'version'", m_Connection) Try m_Connection.Open() Return db_command.ExecuteScalar().trim m_Connection.Dispose() Catch ex As Exception 'MessageBox.Show(ex.Message) Return "NA" Finally m_Connection.Dispose() End Try End Function This works fine except it's creating a connection to each database and leaving it open. My understanding is the close()\dispose() releases only the connection from the pool in ado rather than the actual connection to sql. How would I close the actual connections after I've retrieved the value? Leaving these open will create hundreds of connections to databases that will probably not be used for that session.

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  • Linq sql Attach, Update Check set to Never, but still Concurrency conflicts

    - by remdao
    In the dbml designer I've set Update Check to Never on all properties. But i still get an exception when doing Attach: "An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. This is not supported." This approach seems to have worked for others on here, but there must be something I've missed. using(TheDataContext dc = new TheDataContext()) { test = dc.Members.FirstOrDefault(m => m.fltId == 1); } test.Name = "test2"; using(TheDataContext dc = new TheDataContext()) { dc.Members.Attach(test, true); dc.SubmitChanges(); }

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  • tableview - unrecognized selector sent to instance

    - by ct2k7
    Hi, I'v just got this error in my app. 2010-04-06 03:58:55.463 EasyPay DPS[6530:207] WARNING: Using legacy cell layout due to delegate implementation of tableView:accessoryTypeForRowWithIndexPath: in <NTItems: 0x397af90>. Please remove your implementation of this method and set the cell properties accessoryType and/or editingAccessoryType to move to the new cell layout behavior. This method will no longer be called in a future release. 2010-04-06 03:58:55.505 EasyPay DPS[6530:207] *** -[NTItems tableView]: unrecognized selector sent to instance 0x397af90 2010-04-06 03:58:55.515 EasyPay DPS[6530:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NTItems tableView]: unrecognized selector sent to instance 0x397af90' This error is extremely unuseful - where do I start in my code?

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  • How to calculate a RTOS task's time

    - by Adnan
    Hello all, I have written a code in c for Arm7 using RTOS. There are multiple tasks who's priority is set to same level. So the tasks executes on round-robin base. There is an exception that one task (Default) has set to lower priority then the other task in rtos. So that if no task is running, the default or lower priority task runs. Now i want to calculate the exact total timing (time duration) for that default task runs. Can any one give some idea what to do .... and how to do in code.. Regards Dani

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  • unexpected T_TRY, expecting T_FUNCTION error message, not sure why ?

    - by Rachel
    I am getting unexpected T_TRY, expecting T_FUNCTION error message and am not sure as too why am getting that, can't we use try and catch block inside class like this: class Processor { protected $dao; protected $fin; try { public function __construct($file) { //Open File for parsing. $this->fin = fopen($file,'w+') or die('Cannot open file'); // Initialize the Repository DAO. $this->dao = new Dao('some name'); } public function initiateInserts() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_inserts = $this->dao->initiateInserts($data); } } public function initiateCUpdates() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_updates = $this->dao->initiateCUpdates($data); } } public function initiateExecuteIUpdates() { while (($data=fgetcsv($this->fin,5000,";"))!==FALSE) { $initiate_updates = $this->dao->initiateIUpdates($data); } } } catch (Exception $e) { } }

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  • Web scraping: how to get scraper implementation from text link?

    - by isme
    I'm building a java web media-scraping application for extracting content from a variety of popular websites: youtube, facebook, rapidshare, and so on. The application will include a search capability to find content urls, but should also allow the user to paste a url into the application if they already where the media is. Youtube Downloader already does this for a variety of video sites. When the program is supplied with a URL, it decides which kind of scraper to use to get the content; for example, a youtube watch link returns a YoutubeScraper, a Facebook fanpage link returns a FacebookScraper and so on. Should I use the factory pattern to do this? My idea is that the factory has one public method. It takes a String argument representing a link, and returns a suitable implementation of the Scraper interface. I guess the Factory would hold a list of Scraper implementations, and would match the link against each Scraper until it finds a suitable one. If there is no suitable one, it throws an Exception instead.

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  • What happens when auto_increment on integer column reaches the max_value in databases?

    - by Sanoj
    I am implementing a database application and I will use both JavaDB and MySQL as database. I have an ID column in my tables that has integer as type and I use the databases auto_increment-function for the value. But what happens when I get more than 2 (or 4) billion posts and integer is not enough? Is the integer overflowed and continues or is an exception thrown that I can handle? Yes, I could change to long as datatype, but how do I check when that is needed? And I think there is problem with getting the last_inserted_id()-functions if I use long as datatype for the ID-column.

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  • shutil.rmtree fails on Windows with 'Access is denied'

    - by Sridhar Ratnakumar
    In Python, when running shutil.rmtree over a folder that contains a read-only file, the following exception is printed: File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 216, in rmtree rmtree(fullname, ignore_errors, onerror) File "C:\ActivePython32Python26\lib\shutil.py", line 221, in rmtree onerror(os.remove, fullname, sys.exc_info()) File "C:\ActivePython32Python26\lib\shutil.py", line 219, in rmtree os.remove(fullname) WindowsError: [Error 5] Access is denied: 'build\\pyhg_trunk-win32-x86-hgtip27\\image\\feature-core\\INSTALLDIR\\tcl\\tcl8.5\\msgs\\af.msg' Looking in File Properties dialog I noticed that af.msg file is set to be read-only. So the question is: what is the simplest workaround/fix to get around this problem - given that my intention is to do an equivalent of rm -rf build/ but on Windows? (without having to use unxutils or cygwin)

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  • Posting from JQuery to WCF Service

    - by Villager
    Hello, I have a WCF Service (called "myservice.svc") that takes a message from a user and saves it to the database. It returns a response to the user in the form of a number. This operation looks like this: [OperationContract] [WebGet] public string SubmitMessage(string message) { try { // SAVE TO DATABASE return "1"; } catch (Exception ex) { return "0"; } } I want to call this operation from some JQuery. I'm using the approach shown here: $.getJSON( "/services/myService.svc", {message:"some text"}, function (data) { alert("success"); } ); Oddly, the "success" alert is never displayed. In addition, I have set a breakpoint in my WCF service and it is never being tripped. What am I doing wrong? Thank you

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  • Read nested Lua table who key is a System.Double

    - by Robert Kerr
    Using C# and LuaInterface, I am trying to read a nested table, but am getting a null LuaTable when I try to open the key containing the table. The .lua file: DB = { ["inventory"] = { [10001] = { ["row"] = 140, ["count"] = 20, }, [10021] = { ["row"] = 83, ["count"] = 3, }, [10075] = { ["row"] = 927, ["count"] = 15, }, } } I can successfully foreach the entries under inventory, by opening that table with: LuaTable tbl = lua.GetTable("DB.inventory"); foreach (DictionaryEntry de in tbl) ... What I cannot do is open an inventory item and enumerate its entries the same way. Is this because the key is a System.Double type? This fails: LuaTable tbl = lua.GetTable("DB.inventory.10001"); foreach (DictionaryEntry de in tbl) with an exception, because tbl is null. Effectively, once I enumerate the keys (inventory items), I then want to drill down into the nested table and work with those contents. As you can see, I am not able to get a reference to the nested table the way I am doing it.

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  • Socket Bind Error

    - by rantravee
    Hi, I have a test application that opens a socket , sends something through this socket and then closes it . This is done in a loop for 5-10.000 times. The thing is that after 3,4000 iterations I get an error of this type : enter code here java.net.BindException: Address already in use: connect I even set the socket to be used immediattly, but the error persists enter code here try { out_server.write(m.ToByteArray()); socket_server.setReuseAddress(true); socket_server.close(); } catch(Exception e) { e.printStackTrace(); System.out.println(i+" unable to register with the server"); } What could I do to fix this ?

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  • What is TombstonedTaskError from App Engine's Task Queue?

    - by dbr
    That does the TombstonedTaskError mean? It is being raised while trying to add a task to the queue, from a cron-job: Traceback (most recent call last): File "/base/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 501, in __call__ handler.get(*groups) File "/base/data/home/apps/.../tasks.py", line 132, in get ).add(queue_name = 'userfeedcheck') File "/base/python_lib/versions/1/google/appengine/api/labs/taskqueue/taskqueue.py", line 495, in add return Queue(queue_name).add(self) File "/base/python_lib/versions/1/google/appengine/api/labs/taskqueue/taskqueue.py", line 563, in add self.__TranslateError(e) File "/base/python_lib/versions/1/google/appengine/api/labs/taskqueue/taskqueue.py", line 619, in __TranslateError raise TombstonedTaskError(error.error_detail) TombstonedTaskError Searching the documentation only has the following to say: exception TombstonedTaskError(InvalidTaskError) Task has been tombstoned. ..which isn't particularly helpful. I couldn't find anything useful in the App Engine code either..

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  • groovy thread for urls

    - by Srinath
    I wrote logic for testing urls using threads. This works good for less number of urls and failing with more than 400 urls to check . class URL extends Thread{ def valid def url URL( url ) { this.url = url } void run() { try { def connection = url.toURL().openConnection() connection.setConnectTimeout(10000) if(connection.responseCode == 200 ){ valid = Boolean.TRUE }else{ valid = Boolean.FALSE } } catch ( Exception e ) { valid = Boolean.FALSE } } } def threads = []; urls.each { ur - def reader = new URL(ur) reader.start() threads.add(reader); } while (threads.size() 0) { for(int i =0; i < threads.size();i++) { def tr = threads.get(i); if (!tr.isAlive()) { if(tr.valid == true){ threads.remove(i); i--; }else{ threads.remove(i); i--; } } } Could any one please tell me how to optimize the logic and where i was going wrong . thanks in advance.

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