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  • LinkButton child controls render

    - by Alex
    Hi. I want to have a LinkButton that adds 'span' tag around the text. protected override void Render(HtmlTextWriter writer) { Text = String.Concat("<span>", Text, "</span>"); base.Render(writer); } It's works perfectly, but only if I add text like this: <cc:TestLinkButton ID="TestLinkButton" runat="server" Text="SomeText"> </cc:TestLinkButton> If I want to add some image I will write something like this: <cc:TestLinkButton ID="LinkButton1" runat="server"> <asp:Image ID="Image1" runat="server" ImageUrl="~/Images/icon_holiday.png" BorderWidth="0" /> SomeText </cc:TestLinkButton> In this case Text property will be empty, because actualy "SomeText" is child control property. So question is is how to add tag around child controls.

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  • How do you make your Java application memory efficient?

    - by Boune
    How do you optimize the heap size usage of an application that has a lot (millions) of long-lived objects? (big cache, loading lots of records from a db) Use the right data type Avoid java.lang.String to represent other data types Avoid duplicated objects Use enums if the values are known in advance Use object pools String.intern() (good idea?) Load/keep only the objects you need I am looking for general programming or Java specific answers. No funky compiler switch. Edit: Optimize the memory representation of a POJO that can appear millions of times in the heap. Use cases Load a huge csv file in memory (converted into POJOs) Use hibernate to retrieve million of records from a database Resume of answers: Use flyweight pattern Copy on write Instead of loading 10M objects with 3 properties, is it more efficient to have 3 arrays (or other data structure) of size 10M? (Could be a pain to manipulate data but if you are really short on memory...)

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  • About Googe map

    - by vishal
    Hello everyone I am PHP Developer and developing website .in that i used Google map with the facility of select state and city. for select state and city i put two drop down.so now my problem is when i select state then i can not get value of city and both time whenever use select state and city i refresh the page and so after refreshing the page the value i got is incorrect and does not match the state with city... i clarify again Step 1:- select state (here page will refresh and then i will get value) Step 2:- select city (here also will refresh and then i will get value)) problem :- on the base getting state id and city id i fire the query but result will unknown b'cz city id that does not in selected state actually that city is there

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  • How to run a program in python?

    - by Luka Mihaldinec
    this is my code. I'm trying to make a script which would run an .exe file from my computer. And this one isn't working :/ I think I'm using the wrong command.. I tried all the other commands like import os, os.startfile, but they won't work too. I think my code is just wrong :P loop=0 while loop==0: answer=raw_input("coded by: Narralol\n\n" "Pick a task:\n" "1) Start Minecraft.exe\n" "2) Start Minecraft_Server.jar\n" "3) Backup your server\n" "4) Copy the backup to your desktop\n" "5) Exit\n") if answer==1: execfile('D:\Games\Minecraft\Minecraft.exe') elif answer==2: execfile('D:\Games\Minecraft\Minecraft_server.jar') elif answer==5: loop=1

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  • Is it possible to do live events in YUI, similar to jQuery's live events?

    - by eculver
    It doesn't currently seem as though there is a way to do live events in YUI similar to jQuery: http://api.jquery.com/live/ It sure would be nice if something like: function handleClick(e) { // click! } YUI().use('node-base', function(Y) { Y.on("click", handleClick, ".foo"); }); caused handleClick to be fired when a node with the "foo" class was clicked on after being dynamically added to the DOM and sometime after the Y.on was evaluated. I feel like live events are one of jQuery's killer features that YUI lacks.

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  • filter log file by defining regexes

    - by fmpdmb
    I have some HUGE log files (50Mb; ~500K lines) I need to start filtering some of the crap out of. The log files are being produced using log4j and have the basic pattern of: [log-level] date-time class etc, etc log-message I'm looking for a way that I can identify a regex start and regex end (or something similar) that will filter out the matching entries from the file so I can more easily wade through these massive files. I'm sure I could write a java program to accomplish this task, but I thought I'd ask the community before going down that path. Thanks in advance.

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  • Location of various javax.xml.* packages within the Java 6 SDK.

    - by celestialorb
    Alright, so recently I was using Notepad++ for all of my programming needs, but I've started using Eclipse for larger-scale Java projects now. I decided to pick up an old project of mine which used various classes within the "javax.xml.*" namespaces. When I was compiling and running the program with Notepad++ it worked just fine, however Eclipse can't seem to find these packages. My question is this, since I obviously have the classes somewhere within my current installation of JDK 6 (since I had no problems when using Notepad++), where can I find the location of the .JAR file(s) that include these namespaces/classes so that I can add them to my Eclipse project? Thanks for any help you can give me! Regards, celestialorb Also, if you're curious about the specific packages I'm looking for they are: javax.xml.soap.* javax.xml.transform.* Thanks again!

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  • How should I go about learning Python?

    - by user345690
    I am currently learning PHP and want to learn about OOP. *1.*I know Python is a well-organized and is all OOP, so would learning Python be a wise choose to learn OOP? The thing is I am more towards web development then just general programming, and I know Python is just a general purpose language, but there is Django. *2*So how should I go about learning Python if I am lending towards web development? Is there any good books/websites that help me learn Python for web development? 3. Is there any free webhosting companies that allow Python? I never used Python before, only PHP, and not sure how it works? Can I run Python on a localhost?

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  • What are the advantages of a rebase over a merge in git?

    - by eSKay
    In this article, the author explains rebasing with this diagram: Rebase: If you have not yet published your branch, or have clearly communicated that others should not base their work on it, you have an alternative. You can rebase your branch, where instead of merging, your commit is replaced by another commit with a different parent, and your branch is moved there. while a normal merge would have looked like this: So, if you rebase, you are just losing a history state (which would be garbage collected sometime in the future). So, why would someone want to do a rebase at all? What am I missing here?

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  • discrepancy in using AsyncTask, code is executed in weird order

    - by Pentium10
    Hello, In onCreate method I hav the following order of code objItem = new DbClass(this);//the onCreate event creates the database new PrepareAdapter1().execute();//this task uses the tables, but SQLException occures, tables doesn't exists As you see in my short code, I get a new instance of the SQLiteOpenHelper class, which does create the tables in onCreate. And after that I start an AsyncTask instance where I use the created table. But I get SQLiteException as table doesn't not exists. I am using this code in wrong way? I expect the table to be created when I launch the thread.

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  • Metric to measure object-orientedness

    - by Jono
    Is there a metric that can assist in determining the object-orientedness of a system or application? I've seen some pretty neat metrics in the .NET Reflector Add-ins codeplex project, but nothing like this yet. If such a metric doesn't exist, would it even be possible or useful? There are the 3 supposed tenets of object-oriented programming: encapsulation, inheritance, and polymorphism; a tool that ranked programs against these might be able to show areas of a C# (or similar) code base where the whole object-oriented ideal was discarded, and perhaps how many bugs are associated with that area versus the rest of the project.

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  • Can't send flash message from Model method

    - by Andy
    Hello, I'm trying to prevent a record that has a relationship to another record from being deleted. I can stop the deletion but not send a flash message as I had hoped! class Purchaseitem < ActiveRecord::Base before_destroy :check_if_ingredient ... def check_if_ingredient i = Ingredient.find(:all, :conditions => "purchaseitem_id = #{self.id}") if i.length > 0 self.errors.add(:name) flash.now[:notice] = "#{self.name} is in use as an ingredient and cannot be deleted" return false end end This will prevent a the delete wihthout the flash line, and when I add it I get: undefined local variable or method `flash' for # Any help would be much appreciated!

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  • display image on a report based on two date

    - by Yongwei Xing
    Hi all I am using sql server 2005 reporting service to generate report base on a database. There are two columns which are datetime type ColumnA and ColumnB. The report would display a KPI image on this report by comparing these two columns.Below is the expression for selecting image SWITCH(DateDiff("d",Fields!ColumnA.Value,Fields!ColumnB.Value)<0,"kpi_r", DateDiff("d",Fields!ColumnA.Value,Fields!ColumnB.Value)>0,"kpi_g", DateDiff("d",Fields!ColumnA.Value,Fields!ColumnB.Value)=0,"kpi_y") For most of the records, the image is correct. Only for one record, the result is very strange. For this record ColumnA=2010-04-23 08:00:00 ColumnB=2010-04-22 17:00:00 It would display kpi_r, it displayed kpi_y. I have checked the value of DateDiff(d,Fields!ColumnA.Value,Fields!ColumnB.Value) in the SSMS, the value is -1. Why does it display kpi_y? Does anyone meet this problem before? Best Regards,

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  • What to return as an iterator when there is no container?

    - by DaClown
    I have an inheritance structure of objects with begin() and end() as pure virtual member functions in the base class. From this objects I'm planning to build a composite structure. This inner objects have std::vector member the begin() and end() get their data from. But in a leaf class there is no vector. Now I try to find a return value for begin() and end() in the leaf classes. What would be a good way to do that? The easiest way would be to have a vector member in the leaf classes with no elements in it to fuel begin() and end(), but this just doesn't feel right.

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  • Python: Data Object or class

    - by arg20
    I enjoy all the python libraries for scraping websites and I am experimenting with BeautifulSoup and IMDB just for fun. As I come from Java, I have some Java-practices incorporated into my programming styles. I am trying to get the info of a certain movie, I can either create a Movie class or just use a dictionary with keys for the attributes. My question is, should I just use dictionaries when a class will only contain data and perhaps almost no behaviour? In other languages creating a type will help you enforce certain restrictions and because of type checks the IDE will help you program, this is not always the case in python, so what should I do? Should I resort to creating a class only when there's both, behaviour and data? Or create a movie class even though it'll probably be just a data container? This all depends on your model, in this particular case either one is fine but I'm wondering about what's a good practice.

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  • What open source document-oriented database system is most mature for Windows usage?

    - by jdk
    After using relational databases as back-end storage all my Windows programming life (currently .NET), I want to experiment with a document-oriented database by this Wikipedia definition; it can be standalone or layered over an existing non-commercial database system. What open source document-oriented database solution would you recommend from your own experience and why? A nice to have would be a .NET provider. Admittedly this is somewhat subjective and potentially argumentative so keep it real folks and I'll do the same - also your answers will be invaluable to others looking into document-oriented databases for the first time on Windows. I'm sure the overall value of your answers will outweigh any biases. Thanks.

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  • Find the gender from a name

    - by Ramesh
    Hi guys, I recently confronted with a weird yet interesting question. The questions is as follows: Need to write a program which can give the gender as output based on the name. Example: INPUT -- John Michael Britney OUTPUT-- male male female So this is the output I expect. I tried a lot to solve, but I really was not able to crack it. I will be really thankful to this site for giving me an opportunity to share this question. Actually this is asked in a programming contest as a flyer problem, so I thought this can be programmed.

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  • TFS Automated Builds to Code Packages

    - by Adam Jenkin
    I would like to hear the best practices or know how people perform the following task in TFS 2008. I am intending on using TFS for building and storing web applications projects. Sometimes these projects can contain 100's of files (*.cs, *.acsx etc) During the lifetime of the website, a small bug will get raised resulting in say a stylesheet change, and a change to default.aspx.cs for example. On checking in these changes to TFS, and automated build would be triggered (great!), however for deploying the changes to the target production machine, I only need to deploy for example: style.css default.asx MyWebApplications.dll So my question is, can MSBuild be customized to generate a "code pack" of only the files which require deploying to the production server based on the changeset which cause the re-build?

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  • Where is the chink in Google Chrome's armor?

    - by kudlur
    While browsing with Chrome, I noticed that it responds extremely fast (in comparison with IE and Firefox on my laptop) in terms of rendering pages, including JavaScript heavy sites like gmail. This is what googlebook on Chrome has to say tabs are hosted in process rather than thread. compile javascript using V8 engine as opposed to interpreting. Introduce new virtual machine to support javascript heavy apps introduce "hidden class transitions" and apply dynamic optimization to speed up things. Replace inefficient "Conservative garbage colllection" scheme with more precise garbage collection scheme. Introduce their own task scheduler and memory manager to manage the browser environment. All this sounds so familiar, and Microsoft has been doing such things for long time.. Windows os, C++, C# etc compilers, CLR, and so on. So why isn't Microsoft or any other browser vendor taking Chrome's approach? Is there a flaw in Chrome's approach? If not, is the rest of browser vendor community caught unaware with Google's approach?

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  • JVM specification and Java compiler code useful for SCJP preparation ?

    - by BenoitParis
    I'm preparing the SCJP exam with the almost official study book ("SCJP Sun Certified Programmer for Java 6 Exam 310-065") I understand that Java programming is writting code that fulfills a certain high-level contract; So that Java can stay platform-independent. However, I have trouble understanding and remembering things when it comes to highly specific SCJP items (and they are numerous) The book stays high-level and does not provide examples of how one compiler would handle things. This is the same thing for runtime issues (JVM level): things are too much abstract for me. Rules often seems arbitrary and therefore, with no well defined purpose, are difficult to remember. Or maybe it's that sometimes I just don't get the underlying purpose. And here is the question: Would a JVM specification and/or some java compiler code help in preparing the SCJP? Have you had the need for such material or is the book sufficient enough? Also, please share the resources you used, apart from the book.

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  • Suggested C++ books?

    - by Josh Bradley
    Ok, I've had one semester of C++ and will be taking a second semester in it after I have taken a Data Structure class this fall. In the first class, we dealt mainly with C++ syntax and the textbook we used was ok, but now I'm wanting to go ahead and purchase a great C++ book that encompasses a lot of the programming concepts used today. I'm learning Objective-C on my own and was able to get through the whole object-oriented stuff pretty easily, along with other things like pointers, inheritance, delegation, etc. It doesn't have to exactly have EVERYTHING in it, but I do want to buy the book with the most information in it. Money is no problem. So my question is what book did you use or still use for C++? Is it a book that you can reference back to if you ever forget how to do something small, or would you have to go online and find the answer.

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  • How often do you implement the big three?

    - by Neil Butterworth
    I was just musing about the number of questions here that either are about the "big three" (copy constructor, assignment operator and destructor) or about problems caused by them not being implemented correctly, when it occurred to me that I could not remember the last time I had implemented them myself. A swift grep on my two most active projects indicate that I implement all three in only one class out of about 150. That's not to say I don't implement/declare one or more of them - obviously base classes need a virtual destructor, and a large number of my classes forbid copying using the private copy ctor & assignment op idiom. But fully implemented, there is this single lonely class, which does some reference counting. So I was wondering am I unusual in this? How often do you implement all three of these functions? Is there any pattern to the classes where you do implement them?

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  • Disabling Tool tip of the controls

    - by Dilse Naaz
    Hi I am using one DataGrid with templatecolumn of Asp:Label Control. In Design Page i used Tool tip for this control, But in the ItemDatabound event, it will checks the number of characters of the text of this label. If the character is less than 40, i have to disable the tooltip for that control only.. But i couldn't finalize this task. How it will be done? Please help me. Thanks in advance..

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  • printing out posts

    - by yCalleecharan
    Hi, I'm using the Firefox browser and trying to print out my posts (and replies). The pdf output doesn't include the comments in the posts. How to make sure that everything which is on the page gets printed? Same goes for codes for which are in a window. Only the visible part of the code gets printed. These are not programming questions :) but I hope that someone can suggest how to get proper printouts of the posts. Thanks a lot...

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  • What's the benefit of calling new on an object instance?

    - by Geo
    I'm reading [Programming Perl][1], and I found this code snippet: sub new { my $invocant = shift; my $class = ref($invocant) || $invocant; my $self = { color => "bay", legs => 4, owner => undef, @_, # Override previous attributes }; return bless $self, $class; } With constructors like this one, what's the benefit of calling new on an object instance? I assume that it's what it's for, right? My guess is that if anyone would want to write such a constructor, he would have to add some more code that copies the attributes of the first object to the one about to be created.

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