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• slow record deletion with large ntext values

  - by asking

  I'm having trouble deleting some records via a stored procedure from a table in SQLServer 2008R2 that has ntext columns. The stored proc is timing out and running the query directly takes a very long time. The initial query was a straight "delete from y where x = z" and I've also tried running it in batches of 1000 with transactions but it is still slow and timing out in a stored proc. The majority of the records in the table will not be deleted each time (it's not just a once-off query but will be run other times). The ntext columns are not used in the where clause and I can't change the column types. Any suggestions on the quickest way to delete records with large ntext values? Thanks

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• C#: Why only integral enums?

  - by JamesBrownIsDead

  I've been writing C# for seven years now, and I keep wondering, why do enums have to be of an integral type? Wouldn't it be nice to do something like: enum ErrorMessage { NotFound: "Could not find", BadRequest: "Malformed request" } Is this a language design choice, or are there fundamental incompatibilities on a compiler, CLR, or IL level? Do other languages have enums with string or complex (i.e. object) types? What languages? (I'm aware of workarounds; my question is, why are they needed?) EDIT: "workarounds" = attributes or static classes with consts :)

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• Jsp declaration element

  - by Stardust

  <%! class father { static int s = 0; } %> <% father f1 = new father(); father f2 = new father(); f1.s++; out.println(f2.s); // It must print "1" %> When I run the file, I got this error. Can anybody explain? "The field s cannot be declared static; static fields can only be declared in static or top level types"

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• JQuery drag and Drop

  - by dremay

  I wish to create an Interface to choose Multiple answers using Drag & Drop rather than CheckBox near to the answers. User can choose two types of answers (Real Answer and a Fake Answer). The User has Two Images (for Real & Fake) on the answer page. User can drag an Image and drop near to the selected answer. It is possible to change the selection by moving the "image and drop over some other answer". I have used a "div formatted with an image" near to all answers, so user can drop the image (ie fake or real image) over this "div". I have used JQuery to move the "image" and drop over the "div". Now I need add the code to the "div" (ie container used to hold the image) to identify which "image is placed over it" ie either "fake or real".

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• Coping with weak typing

  - by John Leonard

  I'm a front end Flex developer peeking over the wall at html. One of the things I have a hard time with is weak typing in Javascript. I know many developers say they prefer it. How do I stop worrying and learn to love the weak typing? Are there best practices for variable naming that help make var types human readable? Another thing I have trouble with is getting by without my trusted compiler errors and warnings. I'm getting along with firebug. Is there anything else I should have in my toolkit?

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• C#: How to gracefully pass multiple conditions to Equals()

  - by Roy

  I'm new to C#, and I'm trying to write a program that selects file types from a FileInfo list. So far I have something along the lines of: List<FileInfo> files = new List<FileInfo>(); IEnumerable<FileInfo> result = files.Where(f=>f.Extension.Equals(".jpg", StringComparison.InvariantCultureIgnoreCase)|| f.Extension.Equals(".gif", StringComparison.InvariantCultureIgnoreCase) ); etc Obviously I'm not happy with this solution, but I don't know how to do this otherwise in a single call. What's the better way to go about it?

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• Searching algorithmics: Parsing and processing a request

  - by James P.

  Say you were to create a search engine that can accept a query statement under the form of a String. The statement can be used to retrieve different types of objects with a given set of characteristics and possibly linked to other objects. In plain english or pseudo-code using an OOP approach, how would you go about parsing and processing statements as follows to get the series of desired objects ? get fruit with colour green get variety of apples, pears from Andy get strawberry with colour "deep red" and origin not Spain get total of sales of melons between 2010-10-10 and 2010-12-30 get last deliverydate of bananas from "Pete" and state not sold Hope the question is clear. If not I'll be more than happy to reformulate. P.S: This isn't homework ;)

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• Is there a good Open Source xml ide?

  - by Paul Butcher

  I've looked around, and I'm surprised that I can't find an Open Source equivalent to Oxygen or XMLSpy. i.e. A rich XML editor with support for diverse types of validation, XSLT debugging and profiling, and all the other extra bits that make it more than just a text editor with syntax highlighting. I've seen a few (like Jaxe), that that offer different ways to edit xml documents, but nothing that rolls it all up into an IDE-like application. I'm sure this means I've missed some very worthy project. Can anyone point me towards such a thing?

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• How to define a owner, group and others through PHP?

  - by Starx

  Whenever we use chmod, we set different authorities to different users types like owner, group, others, all What I dont know is, how do define who is owner, who is group and who are others. Can we use this while implementing login system? What I mean is, by verifying a username, I want to define if the logged in user is owner, a group or others so that I can deny access to file or folder. May be my title does not reflect the question, if someone with rep power finds a better title, please edit it?

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• Costs and Scope in developing a typical iphone application

  - by ali

  Iam new to iphone development and have been tasked to development a fairly simple iphone application. It would basically show listings of information eg accommodations, restaurants...around 8-9 different types. Drilling on one would show the details of it. These are dynamically sourced from a db (through an xml feed) that powers an existing website. Also users should have ability to save favourites and also an interactive google map showing locations of these places. Just would like to know how long would such an iphone application take to develop and what would it costs. As iam new to iphone dev, i do not know how big the scope is, any complications to anticipate, scope creep issues, and how much to charge. Want to give a reasonable estimate so that i dont overcharge.

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• Is there an IronRuby lib for generating concrete CLR classes?

  - by Ball

  I want to expose a class to CLR classes. The reason I have is Xaml. I want to write WPF custom controls in Ruby, then use xaml to style and provide templates for them. Last time I tried, Xaml couldn't look up IronRuby types. class NavBar < TreeView ... end <ControlTemlate TargetType={x:Type MyNamspace:NavBar}> ... </ControlTemplate> I know I can get there by writing to the CodeDom, but I'm hoping someone already did the heavy lifting or can show me how without resorting to CodeDom.

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• Silverlight Video Player that plays .MP4 & .FLV

  - by YeahStu

  I am currently using the Silverlight 2 Video Player to stream videos. I have been very pleased with it but it only seems to stream .WMV files. Does anyone know if there is a good Silverlight video player that will stream other types of video files, especially .MP4 & .FLV? I would be happy to use Silverlight 3 if necessary. EDIT: Because I like this player and have not found a great option, I am considering encoding files as I receive them so that they will always be streamed later as a .WMV. Unless I determine a good player (I am considering flash at this point), I will have to go down this road.

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• How do I create Ntlm Type 1 and Type 3 messages in .Net

  - by brj011

  I need to create Type 1 message and Type 3 message for NTLM handshaking. Is there any .Net API for this? Essentially, the application is WPF based, but Socket is used in order to stream data from the server. Use of socket is a technical requirement, but the problem is when user needs to connect to the server using a proxy server. Further, if the proxy authorization is based on Ntlm, the client application needs to create Type 1 and Type 3 messages in order to handshake with the proxy server. My question is: Is there any API already available in .NET libraries that can be consumed in order to create these different types of NTLM messages? Any help or alternatives will be greatly appreciated. Thanks in advance.

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• How do you learn a class hierarchy quickly?

  - by rsteckly

  Hi, Something I don't enjoy about programming is learning a new API. For example, right now I'm trying to learn Windows Identity Foundation. Its frustrating because I'm going to spend the bulk of the time learning how a few classes work and actually only write several lines of code. In .NET, there are so many types that I seem to spend more time hunting around in msdn for a class than writing code. It also interrupts my workflow while I'm working because I have to type a little bit than look something up. Obviously, I don't have to do this for the basic classes. Whenever new things come though there is definitely some looking up to do. Then I often don't reuse that class enough to really review it or bring it into action. I'm wondering if anybody out there has a found a way to memorize (or look up more efficiently) these object model hierarchies?

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• entity framework and dirty reads

  - by bryanjonker

  I have Entity Framework (.NET 4.0) going against SQL Server 2008. The database is (theoretically) getting updated during business hours -- delete, then insert, all through a transaction. Practically, it's not going to happen that often. But, I need to make sure I can always read data in the database. The application I'm writing will never do any types of writes to the data -- read-only. If I do a dirty read, I can always access the data; the worst that happens is I get old data (which is acceptable). However, can I tell Entity Framework to always use dirty reads? Are there performance or data integrity issues I need to worry about if I set up EF this way? Or should I take a step back and see about rewriting the process that's doing the delete/insert process?

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• When does a const return type interfere with template instantiation?

  - by Rimo

  From Herb Sutter's GotW #6 Return-by-value should normally be const for non-builtin return types. ... Note: Lakos (pg. 618) argues against returning const value, and notes that it is redundant for builtins anyway (for example, returning "const int"), which he notes may interfere with template instantiation. While Sutter seems to disagree on whether to return a const value or non-const value when returning an object of a non-built type by value with Lakos, he generally agrees that returning a const value of a built-in type (e.g const int) is not a good idea. While I understand why that is useless because the return value cannot be modified as it is an rvalue, I cannot find an example of how that might interfere with template instantiation. Please give me an example of how having a const qualifier for a return type might interfere with template instantiation.

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• Reflection: take values from an unknown running alpplication

  - by Dr.Lesh

  I'm writing an application that searchs for Semaphore types in the fields of unknown classes in unknown application (passed by user). I made it using Reflection and it worked. Now I want to fill up these semaphores with values, taking them from a running instance of this unknown application. So i took the class with "main" method of this unknown application, made a newInstance, and passed it when invoking the main method to start the application: Class mainClass = getItSomeWhere(); Object instance = mainClass.newInstance(); Method mainMethod = mainClass.getDeclaredMethod("main", new Class[]{String[].class}); mainMethod.invoke(instance, new Object[]{args}); and it worked fine. Now, how can I get the semaphore values, taking them from the classes of this running application, when I only have an instance of the main class? Many thanks for the answers.

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• Drupal 6 Redirect automatically when selecting deepest item from a hierarchycal tree

  - by liutis

  Drupal 6, Redirect automatically when selecting deepest item from a hierarchycal tree, like: Tree Parent .|Child 1 ....|_Child 1.1 .|_Child 2 Redirect action must occour only on the last items: Child 1.1 and Child 2 Destination of creat different content types, will be defined in js array. But how to send hierarchical select value to, destination add content type? Maybe like redirect_url?tid_value=value123. I have to save all taxonomy path, but it would be enouth to get deepest one tid value. Should i use multipage approuch here? Any solusion?

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• Inheritance in tables - structure problem

  - by Naor

  I have 3 types of users in my system. each type has different information I created the following tables: BaseUser(base_user_id, username, password, additional common data) base_user_id is PK and Identity UserType1(user_id, data related to type1 only) user_id is PK and FK to base_user_id UserType2(user_id, data related to type2 only) user_id is PK and FK to base_user_id UserType3(user_id, data related to type3 only) user_id is PK and FK to base_user_id Now I have relation from each type of user to warehouses table. Users from type1 and type2 should have only warehouse_id and users from type3 should have warehouse_id and customer_id. I thought about this structure: WarehouseOfUser(base_user_id,warehouse_id) base_user_id is FK to base_user_id in BaseUser WarehouseOfTyp3User(base_user_id,warehouse_id, customer_id) base_user_id is FK to base_user_id in BaseUser The problem is that such structure allows 2 things I want to prevent: 1. add to WarehouseOfTyp3User data of user from type2 or type1. 2. add to WarehouseOfUser data of user from type3. what is the best structure for such case?

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• number of months between two dates - using boost's date

  - by MartinP

  I've used boost::gregorian::date a bit now. I can see that there are the related months & years & weeks duration types. I can see how to use known durations to advance a given date. Qu: But how can I get the difference between two dates in months (or years or weeks) ? I was hoping to find a function like: template<typename DURATION> DURATION date_diff<DURATION>(const date& d1,const date& d2); There would need to be some handling of rounding too.

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• Struggling with a loop

  - by Emil

  Hey. I am trying to make an integer match another integer by adding a number to one of them. I have tried several loop types, but none has worked. Take a look at the code: int favoriteLoop = [favoriteThing intValue]; if (favoriteLoop != [[[array objectAtIndex:favoriteLoop] description] intValue]){ NSLog(@"%d", [[[array objectAtIndex:favoriteLoop] description] intValue]); int favTemp = favoriteLoop; for (int x = favTemp; (favoriteLoop == [[[array objectAtIndex:favoriteLoop] description] intValue]); x++) { NSLog(@"Still not there.."); } } Could anyone help me clear up this mess? It just won't work! Could it have something to do with it allready being inside a for-loop?

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• Is there a version of postActionEvent for KeyEvent (specifically for a JTextArea)?

  - by Brian Pelc

  I'm writing a program that contains multiple JTextFields and 2 JTextAreas within an input panel. I have a submit button on the bottom. I have it set up so when a user types something into each field (including the JTextAreas) and hits the Enter key, it updates a text file, and when they press the submit button it updates the file then outputs a new version of it in the local directory. If the user presses Enter in any of the fields, it validates their input, however, I want to re-validate all fields when they press the submit button. Each field (again, JTextAreas included) has it's own validation check within its ActionListener or KeyListener (for the JTextAreas). It's easy enough to use postActionEvent() for the JTextFields, but is there a similar method for the JTextAreas to force fire a KeyEvent? I don't want to duplicate code and consume memory by re-writing the validation for those 2 Components inside the ActionEvent for the JButton. Unfortunately, I can't provide a sample because I'm writing the program on a classified machine (PC).

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• How to show wml pages on android phone

  - by Akshata

  I want to show wml page on android. I have designed small wml page. I am using Apache server to deploy the pages. But the page is not displaying. It is displaying just like xml page. I have added some line to mime.types which is given in following site http://e-articles.info/e/a/title/How-To-Configure-Apache-or-IIS-Web-Server-to-Work-with-WML-~-Openwave-SDK/ Still it is not working on android emulator... any idea??

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• Looking for some Feedback on a DB Design

  - by zSysop

  I'm currently working on a ticketing system which allows our users to submit tickets based on their own needs. i.e. if Department "A" is submitting a ticket they can have certain types of problem categories (such as "Supplies" or "Printer") along with details pertaining to the chosen category. I have laid out a partial db design and i was looking for some feedback on it. I've never built a system from the ground up by myself so i'm a little bit nervous. here's my a draft version of my db design Issues Table Id | CreatedBy | CreateDate | Status | Owner | AssignedTo | AssignmentDate | ----------------------------------------------------------------------------- EquipmentIssueDetails Table Id | IssueId | Serial # | Make | Model | .... --------------------------------------------- SupplyIssueDetails Table Id | IssueId | SupplyId | ItemId | QTY | UnitOfMeasurement ------------------------------------------------------------- NetworkIssueDetails Table Id | IssueId | Supervisor | Details | ------------------------------------------------------------- Notes Table Id | IssueId | Note | CreatedBy | CreateDate ------------------------------------------------------------- Thanks in advance

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• Anonymous method as function result

  - by iamjoosy

  What I want to do is to assign an anonymous method which I get as a function result to a variable of the same type. Delphi complains about not beeing able to do the assignement. Obviously Delphi things I want to assign the "GetListener" function instead of the result of that same function. Any help with this is very much appreciated. type TPropertyChangedListener = reference to procedure (Sender: TStimulus); TMyClass = class function GetListener:TPropertyChangedListener end; .... var MyClass: TMyClass; Listener: TPropertyChangedListener; begin MyClass:= TMyClass.create; Listener:= MyClass.GetListener; // Delphi compile error: E2010 Incompatible types: TPropertyChangedListener' and 'Procedure of object' end;

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