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  • jQuery RJS inserting string vs dom.

    - by Dmitriy Likhten
    So I am trying to use jQuery to insert data from an ajax call. I actually use the jquery.form plugin, and have the ajax form submitted with a dataType: 'script'. The response is a jquery expression which contains a <%= javascript_escape(render ...) %> erb tag (similar to what the railscasts episode 136 instructs to do). However the end result is that the full text of the render is inserted as if that was the content to be inserted into the page, as text, not as dom elements. Could the fact that the render had some newlines at the beginning be the cause? Dom text: "\n \n &lt;li>....&lt;/li>" I also tried having jQuery just read the response as a script and execute it, and used the prototype-based rjs stuff, same effect, the text is inserted into the dom. Are there any reasons why such a behavior would be experienced? A bit of clarification: My response.js.erb is jQuery("#content").append("<%= escape_javascript(render(:partial => "widgets")) %>"); jQuery("#information").text("Finally, something happened!"); The full text inside the append() call is inserted as text into #content.

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  • valueOf() vs. toString() in Javascript

    - by brainjam
    In Javascript every object has a valueOf() and toString() method. I would have thought that the toString() method got invoked whenever a string conversion is called for, but apparently it is trumped by valueOf(). For example, the code var x = {toString: function() {return "foo"; }, valueOf: function() {return 42; }}; window.console.log ("x="+x); window.console.log ("x="+x.toString()); will print x=42 x=foo This strikes me as backwards .. if x were a complex number, for example, I would want valueOf() to give me its magnitude (so that zero would become special), but whenever I wanted to convert to a string I would want something like "a+bi". And I wouldn't want to have to call toString() explicitly in contexts that implied a string. Is this just the way it is?

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  • Serializing WPF RichTextBox to XAML vs RTF

    - by chaiguy
    I have a RichTextBox and need to serialize its content to my database purely for storage purposes. It would appear that I have a choice between serializing as XAML or as RTF, and am wondering if there are any advantages to serializing to XAML over RTF, which I would consider as more "standard". In particular, am I losing any capability by serializing to RTF instead of XAML? I understand XAML supports custom classes inside the FlowDocument, but I'm not currently using any custom classes (though the potential for extensibility might be enough reason to use XAML).

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  • Serializing WPF RichTextBox to XAML vs RTF

    - by chaiguy
    I have a RichTextBox and need to serialize its content to my database purely for storage purposes. It would appear that I have a choice between serializing as XAML or as RTF, and am wondering if there are any advantages to serializing to XAML over RTF, which I would consider as more "standard". In particular, am I losing any capability by serializing to RTF instead of XAML? I understand XAML supports custom classes inside the FlowDocument, but I'm not currently using any custom classes (though the potential for extensibility might be enough reason to use XAML).

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  • App.config vs. .ini files

    - by Jakob Gade
    I'm reviewing a .NET project, and I came across some pretty heavy usage of .ini files for configuration. I would much prefer to use app.config files instead, but before I jump in and make an issue out of this with the devs, I wonder if there are any valid reasons to favor .ini files over app.config?

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  • Eclipse RCP: Actions vs Commands - would like an update

    - by nEm
    I know this question has been asked before but it was in 2009 and I haven't found anything more recent either on the web. I was wondering if the answer in that still holds or can it be updated? I am just starting work on an RCP and I haven't been able to decide between actions and commands for my menu items. I will be using a lot of the ones provided by Eclipse such as the Edit, File and some of their sub menu items as well. Since it has been nearly two years for the answer provided in the '09 question, I just wanted to make sure there is nothing else that could sway my decision in either direction or maybe if there have been some new developments that I am not aware of.

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  • Telerik vs. Infragistics for Silverlight

    - by JeffN825
    Yes, this is certainly a duplicate question, but I wanted to get some fresh takes. My impression is that Telerik is a much more complete suite, but I'm really really turned off by the responsiveness of their controls. It just seems "clunky" in terms of responsiveness (I have a very fast computer and video card). Scrolling in a grid and transitions chunk, even in their latest demos where they claim to have good performance. I do like that their WPF suite matches their SL one in terms of API. Infragistics has fewer controls and less theming possibilities, but their controls are very responsive. Scrolling in a grid is fluid, as are their combo menus and all the other controls. I checked out ComponentOne and their controls seem analogous to Telerik's in terms of the points mentioned above but are a little less "pretty". Any thoughts from other users of these suites? Basically, what I'm looking for is a suite that will be highly performant and responsive, relatively customizable from a theming standpoint, and have enough functionality to develop a LOB SL application without having to use multiple suites to satisfy the majority of common requirements.

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  • Python Sets vs Lists

    - by mvid
    In Python, which data structure is more efficient/speedy? Assuming that order is not important to me and I would be checking for duplicates anyway, is a Python set slower than a Python list?

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  • Performance Hosting under WAS vs Host as Service?

    - by ashraf
    I have some performance issue when I host WCF service (net.tcp) under WAS (IIS 7). It is working fine when I host service under console application. The issue is WCF Become Slow After Being Idle For 15 Seconds and a solution. After applying Wenlong Dong workaround delay is gone, but it does not work in WAS (IIS 7). I tried to put "ThreadPoolTimeoutWorkaround.DoWorkaround()" in static AppInitialize() as suggested here, still no luck. Thanks

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  • MySQL vs PHP when retrieving a random item

    - by andufo
    Hi, which is more efficient (when managing over 100K records): A. Mysql SELECT * FROM user ORDER BY RAND(); of course, after that i would already have all the fields from that record. B. PHP use memcached to have $cache_array hold all the data from "SELECT id_user FROM user ORDER BY id_user" for 1 hour or so... and then: $id = array_rand($cache_array); of course, after that i have to make a MYSQL call with: SELECT * FROM user WHERE id_user = $id; so... which is more efficient? A or B?

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  • Calling VS 2008 refactoring methods through command line?

    - by Huck
    Hello all, I want to create a simple batch file that would perform some Visual Studio 2008 refactoring tasks on some files. For example, I would like to call the Refactor.ExtractInferface command on a given file. Can I do this from the command line? Is there a better way (I am sure there is) of doing this? Thanks, H.

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  • DurandalJS vs AngularJS?

    - by Zach
    I'm looking for a JS framework to build an SPA and found DurandalJS and AngularJS. Can anyone compare these two frameworks? I did find many articles that compares AngularJS and KnockoutJS, and they say AngularJS is more than data binding, so I think DurandalJS may be the one to compare. I did a little research on AngularJS, it is good but one thing is bad: the $ prefix does not work when minified, although there is an ugly workaround. And someone said Twitter Bootstrap does not work well with it (I didn't check). For DurandalJS, I still cannot find the samples (http://durandaljs.com/documentation/Understanding-the-Samples/), so it's hard to say. PS: are they working well with TypeScript? Best regards, Zach

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  • When to use CouchDB vs RDBMS

    - by Andrew Whitehouse
    I am looking at CouchDB, which has a number of appealing features over relational databases including: intuitive REST/HTTP interface easy replication data stored as documents, rather than normalised tables I appreciate that this is not a mature product so should be adopted with caution, but am wondering whether it is actually a viable replacement for an RDBMS (in spite of the intro page saying otherwise - http://couchdb.apache.org/docs/intro.html). Under what circumstances would CouchDB be a better choice of database than an RDBMS (e.g. MySQL), e.g. in terms of scalability, design + development time, reliability and maintenance. Are there still cases where an RDBMS is still clearly the right choice? Is this an either-or choice, or is a hybrid solution more likely to emerge as best practice?

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  • Python try...except comma vs 'as' in except

    - by peter
    What is the difference between ',' and 'as' in except statements, eg: try: pass except Exception, exception: pass and: try: pass except Exception as exception: pass Is the second syntax legal in 2.6? It works in CPython 2.6 on Windows but the 2.5 interpreter in cygwin complains that it is invalid. If they are both valid in 2.6 which should I use?

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  • INNER JOIN vs LEFT JOIN performance in SQL Server

    - by Ekkapop
    I've created SQL command that use INNER JOIN for 9 tables, anyway this command take a very long time (more than five minutes). So my folk suggest me to change INNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, at first time its despite what I know. After I changed, the speed of query is significantly improve. I want to know why LEFT JOIN is faster than INNER JOIN? My SQL command look like below: SELECT * FROM A INNER JOIN B ON ... INNER JOIN C ON ... INNER JOIN D and so no

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  • Pear MDB2 class and raiserror exceptions in MSSQL

    - by drholzmichl
    Hi, in MSSQL it's possible to raise an error with raiserror(). I want to use a severity, which doesn't interrupt the connection. This error is raised in a stored procedure. In SQL Management Studio all is fine and I get my error code when executing this SP. But when trying to execute this SP via MDB2 in PHP5 this doesn't work. All I get is an empty array. MDB2 object is created via (including needed options): $db =& MDB2::connect($dsn); $db->setFetchMode(MDB2_FETCHMODE_ASSOC); $db->setOption('portability',MDB2_PORTABILITY_ALL ^ MDB2_PORTABILITY_EMPTY_TO_NULL); The following works (I get a PEAR error): $db->query("RAISERROR('test',11,0);"); But when calling a stored procedure which raises this error via $db->query("EXEC sp_raise_error"); there is not output. What's wrong?

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  • Getting a Method's Return Value in the VS Debugger

    - by Bullines
    Is it possible to get a method's return value in the Visual Studio debugger, even if that value isn't assigned to a local variable? For example, I'm debugging the following code: public string Foo(int valueIn) { if (valueIn > 100) return Proxy.Bar(valueIn); else return "Not enough"; } Since I'm not setting any local variables in Foo, and assuming I'm not setting a break point in whatever's calling Foo, is there a way to see what the return value is if I have a breakpoint inside of Foo (or another way)? I don't have much experience with the Autos or Intermediate windows, so I'm not sure if those are even a valid option or not.

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  • MYSQL OR vs IN performance

    - by Scott
    I am wondering if there is any difference in regards to performance between the following SELECT ... FROM ... WHERE someFIELD IN(1,2,3,4) SELECT ... FROM ... WHERE someFIELD between 0 AND 5 SELECT ... FROM ... WHERE someFIELD = 1 OR someFIELD = 2 OR someFIELD = 3 ... or will MySQL optimize the SQL in the same way compilers will optimize code ? EDIT: Changed the AND's to OR's for the reason stated in the comments.

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  • DataTable vs. Collection in .Net

    - by B Pete
    I am writing a program that needs to read a set of records that describe the register map of a device I need to communicate with. Each record will have a handfull of fields that describe the properties of each register. I don't really need to edit or modify the data in my VB or C# program, though I would like to be able to display the data on a grid. I would like to store the data in a CSV file, or perhaps an XML file. I need to enable users to edit the data off-line, preferably in excel. I am considering using a DataTable or a Collection of "Register" objects (which I would define). I prototyped a DataTable, and found I can read/write XML easily using the built in methods and I can easily bind to a DataGridView. I was not able to find a way to retreive info on a single register without using a query that returns a collection of rows, even though I defined a unique primaty key column. The syntax to get a value from a column is also complex, though I could be missing something on both counts. I'm tempted to use a collection of "Register" objects that I can access via a unique key. It would be a little more coding up front, but seems like a cleaner solution overall. I should still be able to use LINQ to dataset to query subsets of registers when I need them, but would also be able to grab a single field using a the key value, something like this: Registers(keyValue).fieldName). Which would be a cleaner approach to the problem? Is there a way to read/write XML into a Collection without needing custom code? Could this be accomplished using String for a key?

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  • DataGridTemplateColumn for individual control-column vs DataGridTextColumn

    - by msfanboy
    Hello, what is the difference, both works: DataGridTemplateColumn versus DataGridTextColumn <DataGridTemplateColumn Header="Homework"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <RichTextBox > <FlowDocument> <Paragraph> <Run Text="{Binding Homework}"/> </Paragraph> </FlowDocument> </RichTextBox> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> <DataGridTextColumn Header="Homework"> <DataGridTextColumn.CellTemplate> <DataTemplate> <RichTextBox > <FlowDocument> <Paragraph> <Run Text="{Binding Homework}"/> </Paragraph> </FlowDocument> </RichTextBox> </DataTemplate> </DataGridTextColumn.CellTemplate> </DataGridTextColumn >

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