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  • C# coding standards for private member variables [closed]

    - by Sasha
    I saw two common approaches for coding standards for private member variables: class Foo { private int _i; private string _id; } and class Foo { private int m_i; private string m_id; } I believe the latter is coming from C++. Also, many people specify type before the member variable: double m_dVal -- to indicate that is is a nonconstant member variable of the type double? What are the conventions in C#?

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  • Ruby Regexp methods?

    - by fjs6
    Is there a gem/example_code that allows to work with regexps? I am not looking for what a regexp can do, but what can be done to a Regexp object. For example: r = Regexp.new(...) r.min_length => the minimum length of a matching string r = Regexp.new("car(less)?") r.min_length => 3 for the string "car" Thanks!

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  • Looping over ILookup, accessing values

    - by Jono
    I've got a ILookup< string, List<CustomObject> > from some linq I've done. I'd like to now iterate over the results: foreach(IGrouping<string, List<CustomObject>> groupItem in lookupTable) { groupItem.Key; //You can access the key, but not the list of CustomObject } I know I must be misrepresenting a IGrouping as a KeyValuePair, but now I'm not sure how to access it properly.

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  • Defining a different primary key in Mongomapper

    - by ming yeow
    I am defining a primary key in MongoMapper. class B key :_id, string key :externalId, string end The problem is that everything i add a new record in B, it appears that I need to explicity specify the _id, when it is already defined in the external id B.new(:_id=>"123", :external_id=>"123 ) That does not quite make sense. There should be a way to specify externalId as the primary key, no?

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  • Does Boost work with IntervalZero RTX 2009?

    - by cs-79
    Hi all Rtx experts, Have anyone implemented hard real-time app on IntervalZero Rtx environment using Boost libraries? I wish to use the Boost `unordered` data structures instead of solely relying on STL::Vector. Or Array/Vector is the only data structure supported by Rtx? * Off topic question: Can we use STL::String instead of char pointer for string in Rtx? Thanks.

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  • How to emulate PHPs preg_split in ruby to capture offsets and delimiters?

    - by dimus
    I wonder if there is a way to get offsets and delimiters while I am splitting a string in ruby analagous to PHP preg_split: preg_split("/( |&nbsp;|<|>|\t|\n|\r|;|\.)/i", $html_string, -1, PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_OFFSET_CAPTURE); I imagine I can achieve it by traversing string by characters or using something heavy as treetop, but I would like to use something more convenient.

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  • Passing a complex object to a page while navigating in a WP7 Silverlight application

    - by Andreas Grech
    I have been using the NavigationService's Navigate method to navigate to other pages in my WP7 Silverlight app: NavigationService.Navigate(new Uri("/Somepage.xaml?val=dreas", UriKind.Relative)); From Somepage.xaml, I then retrieve the query string parameters as follows: string val; NavigationContext.QueryString.TryGetValue("val", out val); I now need a way to pass a complex object using a similar manner. How can I do this without having to serialize the object every time I need to pass it to a new page?

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  • == and === operators in php

    - by Lizard
    Lets say I have a variable that will always be a string. Now take the code below: if($myVar === "teststring") Note $myVar will always be a string, so my questions is Which is quicker/best, using === (Indentity) or the == (Equality)?

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  • How to display Kannada (Indic) Fonts in a Java application

    - by AJ
    I am trying to dislplay a kannda character in a Java app. String fonts[] = ge.getAvailableFontFamilyNames(); This shows that there is a font family by name "BRH Kannada" Font f = new Font("BRH Kannada", Font.PLAIN, 20); and then I do button.setFont(f); now when i set the button text, I have to ideally get the text on button to use the BRH kannada font. However, what and how should I give the string as?

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  • How to switch sql-2005 Select Case When T-sql Naming?

    - by soe
    select (Case Remark01 When 'l1' then type1 when 'l2' then type2 end) AS [?] --Remark .....want to switch name in here from mytable Example .... select (Case level When 'l1' then type1 ('l1' mean check constant string) when 'l2' then type2(('l2' mean check constant string)) end) AS (Case when 'l1' then [type01] Else [type02]) from mytable select level,type1,type2 from mytable I using two program this mytable one program is want to show menu only type1 only one program is want to show menu only type2 only I using one view using two program..

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  • Serialize an object using DataContractJsonSerializer as a json array

    - by rekna
    I have a class which contains a list of items. I want to serialize an instance of this class to json using the DataContractJsonSerializer as a json array. eg. class MyClass { List<MyItem> _items; } class MyItem { public string Name {get;set;} public string Description {get;set;} } When serialized to json it should be like this : [{"Name":"one","Description":"desc1"},{"Name":"two","Description":"desc2"}]

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  • Sed non greedy curly braces match

    - by Cesar
    I have a string in a file a.txt {moslate}alho{/moslate}otra{moslate}a{/moslate} a need to get the string otra using sed. With this regex sed 's|{moslate}.*{/moslate}||g' a.txt a get no output at all but when i add a ? to the regex s|{moslate}.*?{/moslate}||g a.txt (I've read somewhere that it makes the regex non-greedy) i get no match at all, i mean a get the following output {moslate}alho{/moslate}otra{moslate}a{/moslate} How can i get the required output using sed?

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  • How to assign a value of a property to a var ONLY if the object isn't null

    - by Blankman
    In my code, is there a shorthand that I can use to assign a variable the value of a object's property ONLY if the object isn't null? string username = SomeUserObject.Username; // fails if null I know I can do a check like if(SomeUserObject != null) but I think I saw a shorthand for this kind of test. I tried: string username = SomeUserObject ?? "" : SomeUserObject.Username; But that doesn't work.

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  • Ruby complex validation

    - by pcasa
    Have a product that belongs to a category. Want to create a promotion for a short period of time (lets say a week or two), but their can be only one promotion per category during that time. How can I create a custom validation for this? product class belongs_to :categories name:string desc:text reg_price:decimal category_id:integer promo_active:boolean promo_price:decimal promo_start:datetime promo_end:datetime end category class has_many :products name:string end

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  • Is HashMap in Java collision safe

    - by changed
    Hi I am developing a parser that needs to put key value pairs in hashmap. But a key can have multiple values which i can do in this way HashMap<String,ArrayList<String>> . But what happens if number of keys are very large and it start matching with other key's hashcode. Will that rewrite previous key's value ? thanks -devSunday

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  • A few questions about char pointers.

    - by m4design
    1- How does this work: char *ptr = "hi"; Now the compiler will put this string in the memory (I'm guessing the stack), and create a pointer to it? Is this is how it works? 2- Also if it is created locally in a function, when the function returns will the memory occupied by the string be freed? 3- Last but not least, why is this not allowed: ptr[0] = 'H'; ?

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  • Grails: How can I search through children in a hasMany relationship?

    - by intargc
    If I have a Client domain class, and that Client hasMany Courses. How do I find the course I'm looking for? For instance: class Client { String name static hasMany = [courses:Course] } class Course { String name static belongsTo = [client:Client] } def client = Client.get(1) I want to "find" or "search" within that courses relationship. Maybe something like: client.courses.find(name:'Whatever') Is there any way to do this with Grails?

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  • change a frame's attribute by pressing a button

    - by asavu
    Hi. Suppose we have a JFrame named frame1 with a String attribute named credentials set inittially to null. I have a jButton named button1 attached to the frame and I want to change the frame1 String credentials attribute by pressing button1. I need some piece of advice regarding the ActionListener code especially. Could you guys pls help me? Thank you.

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  • java dynamic function calling

    - by dpaksp
    here is that case....i have an String array that contains only method names of yyyyyy.java file in xxxxxx.java file am creaing yyyyyy.java 's instance (say obj) now i have access obj.fuction_name....that function i should get from that String array in loop ...is that possible ... thank u

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  • SQL-wrappers (activerecord) to recommened for python?

    - by Horace Ho
    is there an activerecord (any similar SQL-wrapper) for python? which is good for: used in a server-side python script light-weight supports MySQL what I need to do: insert (filename, file size, file md5, the file itself) into (string, int, string, BLOB) columns if the same file (checksum + filename) does not exist in db thx

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