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• Equivalent of ToString() on an enum type in C++/CLI

  - by daffers

  In C# you can declare an enum and once you have set its value call ToString on the variable and get a string representation of the value of the enum. How do you do this in C++/CLI using a managed enum?

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• entering data in sql database through asp

  - by sushant

  pass=session("password") Set objIns=server.CreateObject("adodb.connection") objIns.Open session("Psrconnect") inspass="Insert into passwords(pass) values ('&pass&')" objIns.Execute(inspass) i dont know what should be the syntax to pass the value stored in the variable. with this syntax, the value entered in the database is &pass&. can anyone plz help me out?

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• jquery get number from id

  - by john morris

  how can i get the number from a div tag's id? example: <div id="button1"></div> how can i get the 1 and store it in a variable?

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• Minimal example wanted showing texview incrementing a count on a timer?

  - by BobG

  In c it would be: while(1){ i++; printf("%d \r",i); } I assume the textview and the variable and the timer get created in oncreate, then there is a timer handler with an increment and a settext and a sleep? Seeing how to do this in androidese would really clarify things I think. Thanks.

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• mod_rewrite - Don't get a second rule work

  - by poru

  I want to have a url like this: domain.com/css/site.css?test=234 Rule: RewriteEngine On RewriteRule ^([a-z]+)/$ $1.php RewriteRule ^css/([a-zA-Z0-9]+).css?count=(.*)$ css.php?f=$1&test=$2 But I get every time a 404: Not found (site.css) If I have a rule like that it works, just without getting the $_GET-Variable: RewriteEngine On RewriteRule ^([a-z]+)/$ $1.php RewriteRule ^css/([a-zA-Z0-9]+).css$ css.php?f=$1

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• Is it possible to start (and stop) a thread inside a DLL?

  - by Jerry Dodge

  I'm pondering some ideas for building a DLL for some common stuff I do. One thing I'd like to check if it's possible is running a thread inside of a DLL. I'm sure I would be able to at least start it, and have it automatically free on terminate (and make it forcefully terminate its self) - that I can see wouldn't be much of a problem. But once I start it, I don't see how I can continue communicating with it (especially to stop it) mainly because each call to the DLL is unique (as far as my knowledge tells me) but I also know very little of the subject. I've seen how in some occasions, a DLL can be loaded at the beginning and released at the end when it's not needed anymore. I have 0 knowledge or experience with this method, other than just seeing something related to it, couldn't even tell you what or how, I don't remember. But is this even possible? I know about ActiveX/COM but that is not what I want - I'd like just a basic DLL that can be used across languages (specifically C#). Also, if it is possible, then how would I go about doing callbacks from the DLL to the app? For example, when I start the thread, I most probably will assign a function (which is inside the EXE) to be the handler for the events (which are triggered from the DLL). So I guess what I'm asking is - how to load a DLL for continuous work and release it when I'm done - as opposed to the simple method of calling individual functions in the DLL as needed. In the same case - I might assign variables or create objects inside the DLL. How can I assure that once I assign that variable (or create the object), how can I make sure that variable or object will still be available the next time I call the DLL? Obviously it would require a mechanism to Initialize/Finalize the DLL (I.E. create the objects inside the DLL when the DLL is loaded, and free the objects when the DLL is unloaded). EDIT: In the end, I will wrap the DLL inside of a component, so when an instance of the component is created, DLL will be loaded and a corresponding thread will be created inside the DLL, then when the component is free'd, the DLL is unloaded. Also need to make sure that if there are for example 2 of these components, that there will be 2 instances of the DLL loaded for each component. Is this in any way related to the use of an IInterface? Because I also have 0 experience with this. No need to answer it directly with sample source code - a link to a good tutorial would be great.

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• Access Array Element with Smarty

  - by streetparade

  How can i acces an Array Element in Smarty with a second variable as index? Imagine i have an array of language [99] = Array ( [language] = English ) I tryed this : $memberLanguage.id is 99 so logicaly you would acces it this way {$language.$memberLanguage.id.language} but this doesnt work. in PHP i would do it this way $language[$memberLanguage['id']]['language'] How can i access the Array Element Dynamicaly?

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• [SQL server] How to insert artificial data into a select statement

  - by user149578

  Hi guys: Suppose we got a original query as follows: SELECT A, B, C FROM tblA Now, I need to additional artificial rows like SELECT 'Kyala', B, C FROM tblA when, for example, C = 100 to be inserted into the resultset. How could I achieve it using a single SQL instead of relying on table variable or temp table?

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• Does PHP have a data type bigger than int?

  - by Jack

  I want to save a 11 digit number inside a variable. How can I do this in PHP?

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• subtracting one time from another in vb.net

  - by testkhan

  i have a variable [ Dim mytime = "12:30:00 AM" ] i want to subtract mytime from TimeOfDay and i also want to get the difference as a integer value... how should i do that..

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• correct function parameters designation

  - by david

  Every time i pass some parameters to a JavasScript or jQuery functon, i use some random letters. What are the correct letters for the corresponding variable types? function(o){} for example is for a object. But what are the other letters? Do someone have a list of those?

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• Using 'this': where is good and where is not [closed]

  - by abatishchev

  I like to use 'this' statement for all non-local variables: for properties, for class variables, etc. I do this for code easy reading, easy understanding where from this variable has got. object someVar; object SomeProperty { get; set } void SomeMethod(object arg1, object arg2) { this.SomeProperty = arg1; this.someVar = arg2; } How do you think, what is proper way to use 'this'?

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• How to check the existence of a row in SQLite with Python?

  - by fx

  I have the cursor with the query statement as follows: cursor.execute("select rowid from components where name = ?", (name,)) I want to check for the existence of the components: name and return to a python variable. How do I do that?

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• How to navigate around a '[' in JSON.

  - by Kyle

  I'm new to JSON and moving around in it in jQuery. I'm fine until I hit a '[', as in: "gd$when": [{ "startTime": "2006-11-15", "endTime": "2006-11-17", "gd$reminder": [{"minutes": "10"}] }], I tried to do a eventTime = event["gd$when"]["startTime"]; to get to the 'startTime' (Yes, event is the variable for ajax stuff, it's all working fine until I hit the '[') Thanks for any help.

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• stl string return by const reference vs. const char*

  - by user342673

  i have a STL string member variable in my class, class A { public: const char* getData1() const { return data.c_str()); const string& getData2() const { return _data; } private: string _data; }; getData1() vs. getData2(), which one is better?

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• access parametrically values of variables inside environments

  - by Apostolos

  Let's say we have one or more environments and variables in them. My question is how we access the values of these variables, parametrically. rm(list = ls()) env1 <- new.env() env1$var1 <- "value1" env2 <- new.env() env2$var2 <- "value2" env <- ls.str(mode="environment") # We get the environments var <- ls.str(eval(parse(text = env[1])))# We get the variables of an environment eval(var[1]) # We fail to get the value of a variable Thank you all, in advance

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• Thread-safe get (accessor method)

  - by sonofdelphi

  I'm currently using the following code for thread-safe access of a variable. int gnVariable; void getVariableValue(int *pnValue) { acquireLock(); //Acquires the protection mechanism *pnValue = gnVariable; releaseLock(); //Releasing the protection mechanism } I would like to change my API signature to a more user-friendly int getVariableValue(void); How should I rewrite the function - such that the users of the API don't have to bother about the locking/unlocking details?

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• Strange ruby syntax

  - by AntonAL

  Hi, what the syntax is in Action Mailer Basics rails guide ? class UserMailer < ActionMailer::Base def welcome_email(user) recipients user.email from "My Awesome Site Notifications <[email protected]>" subject "Welcome to My Awesome Site" sent_on Time.now body {:user => user, :url => "http://example.com/login"} end end How should i understand the construction, like from "Some text for this field" Is it an assignment the value to a variable, called "from" ?

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• Exclude some ids from result in Rails ActiveRecord

  - by Beer Brother

  I have following statement for query articles from some sections Article.all(:joins => :sections, :conditions => { :sections =>{ :id => [3, 4, 6, 7, 8, 9] }, :id_not_in => @some_ids }, :limit => 4) Variable @some_ids is array with ids of articles wich must be excluded from result.

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• Is it safe to read global data from multiple threads?

  - by user362515

  The scenario is as follows: Create an instance of a class (std::map) and sore it as global variable. Spawn threads. Threads read and use the same global instance of the class All spawned threads quit Global class instance is destroyed No mutex, no thread modifies the global class instance. Is this OK? Thank You

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• getchar() and putchar()

  - by gautam kumar

  is getchar() equivalent to scanf("%c",&a); is putchar(c) equivalent to printf("%c",a); where a is a char variable

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• Can a trait state if a C++ class has a default constructor?

  - by Vicente Botet Escriba

  Traits classes can be defined to check if a C++ class has a member variable, function or a type (see here). Curiously, the ConceptTraits do not include traits to check if a C++ class defines a default constructor or given constructor? Can traits be used to check the constructor presence? If yes, how? If not, why it is not possible?

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• How do I create a multiline textbox that adjusts the height automatically when the window is resized

  - by tmim

  I have an xul file with a multiline textbox. When I resize the window, its width changes but its height is constant. How do I make its height variable?

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• I want the actual file name that is returned by a PHP script

  - by Aymon Fournier

  I am writing a python script that downloads a file given by a URL. Unfortuneatly the URL is in the form of a PHP script i.e. www.website.com/generatefilename.php?file=5233 If you visit the link in a browser, you are prompted to download the actual file and extension. I need to send this link to the downloader, but I can't send the downloader the PHP link. How would I get the full file name in a usable variable?

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• Can I tag in svn with nant?

  - by David Belanger

  Hi, I'm needing to build multiple environments and tag them in subversion using a nant script. Is there a way that I can use nant to create the tags in svn with a variable I supply? Thanks.

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