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  • does the condition after && always get evaluated

    - by brett
    I have this if statement that tests for the 2 conditions below. The second one is a function `goodToGo() so I want to call it unless the first condition is already true $value = 2239; if ($value < 2000 && goodToGo($value)){ //do stuff } function goodToGo($value){ $ret = //some processing of the value return $ret; } My question is about the 2 if conditions $value < 2000 && goodToGo($value). Do they both get evaluated or does the second one only get evaluated when the first one is true? In other words, are the following 2 blocks the same? if($value < 2000 && goodToGo($value)) { //stuff to do } if($value < 2000) { if (goodToGo($value)){ //stuff to do } }

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  • F# script to application

    - by sudaly
    I have written two small scripts, First one maintains a dictionary of current stock prices for a set of securities. I am using recursion to listen to a named pipe. Whenever there is something available on the name pipe, it updates the security price and goes right back and start listening to the pipe. The second one periodically reads the stock price of some security from the price cache of the first program and performs come calculation. But I have no idea how to make these two programs communicate. I somehow need to make my second programs start the first program and let it run in the background and get the price whenever it needs it. Can someone point me in the right direction? Thank you, -Niran

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  • MySQL Locking table from Stored FUNCTION

    - by Brandon
    I have a function in a MySQL Database that determines some sync parameters for a mobile device. The function determines the last date/time the user synchronized with the database. During my sync operation I call this server side function twice. As soon as I call it the second time - the entire Sync_Records table is locked. I cannot write to it from any other connection anywhere (note, after first call, the table is not locked). I changed the function to a Procedure - and all is fine - no locking after the second call. The entire sync operation (including both calls to the function/procedure) is within a transaction. This is an InnoDb table. The function/procedure simply does two select statements. They are storing results in local variables and then returning the date time variable. I don't understand why the tables are locked. Does anyone have any ideas?

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  • change the user informatoin on each row click in the jquery grid

    - by kumar
    hello friends I am using jquery grid, I have a grid with user data, I need a code to handle to handle the click on each row? that is if I click First row I need to display first row user information in the bottom of the grid, if I click second row I need to dispaly second user iformation on the grid can any body help me out how to handle the click event using jquery/ Here is my code.. $("#table1").Click(function()///// how to handle the click event for each row and how to pass the ID value to change the user each time on click { $("#table2").show(); } thanks

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  • Understanding Clojure concurrency example

    - by dusha
    Hello, I just go through various documentation on Clojure concurrency and came accross the example on the website (http://clojure.org/concurrent_programming). (import '(java.util.concurrent Executors)) (defn test-stm [nitems nthreads niters] (let [refs (map ref (replicate nitems 0)) pool (Executors/newFixedThreadPool nthreads) tasks (map (fn [t] (fn [] (dotimes [n niters] (dosync (doseq [r refs] (alter r + 1 t)))))) (range nthreads))] (doseq [future (.invokeAll pool tasks)] (.get future)) (.shutdown pool) (map deref refs))) I understand what it does and how it works, but I don't get why the second anonymous function fn[] is needed? Many thanks, dusha. P.S. Without this second fn [] I get NullPointerException.

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  • Search Result displaying-like google php

    - by Ramesh
    i have an paragraph and user will search inside that and if the search term has 3 matches inside but all are in 3 different places ex World War II, or the Second World War[1] (often abbreviated WWII or WW2), was a global military conflict lasting from 1939 to 1945 which involved most of the world's nations, including all of the great powers, organised into two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, with more than 100 million military personnel mobilised. In a state of "total war," the major participants placed their entire economic, industrial, and scientific capabilities at the service of the war effort, erasing the distinction between civilian and military resources. Marked by significant action against civilians, including the Holocaust and the only use of nuclear weapons in warfare, it was the deadliest conflict in human history,[2] with over seventy million casualties. i have to search "war" so that it should display like World War II, or the Second World War[1].....In a state of "totalwar,".... some thing like this ///

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  • jQuery child selector expression

    - by Saiful
    <div id="div"> <div> <!-- first level --> <div> <!-- second level --> <div>1.1</div> <!-- third level --> <div>1.2</div> </div> <div> <div></div> <div>2.2</div> </div> </div> </div> What are the jQuery selector expressions for selecting the followings: 1. div commented by first level 2. divs commented by second level 3. divs commented by third level

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  • Remove objects from different environments

    - by Fred
    I have an R script file that executes a second R script via: source("../scripts/second_file.R") That second file has the following lines: myfiles <- list.files(".",pattern = "*.csv") ... rm(myfiles) When I run the master R file I get: > source("../scripts/second_file.R") Error in file.remove(myfiles) : object 'myfiles' not found and the program aborts. I think this has something to do with the environment. I looked at ?rm() pages but less than illuminating. I figure I have to give it a position argument, but not sure which.

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  • How to validate Windows VC++ DLL on Unix systems

    - by Guildencrantz
    I have a solution, mostly C#, but with a few VC++ projects, that is pushed through our standard release process (perl and bash scripts on Unix boxes). Currently the initiative is to validate DLL and EXE versions as they pass through the process. All the versioning is set so that File Version is of the format $Id: $ (between the colon and the second dollar should be a git commit hash), and the Product Version is of the format $Hudson Build: $ (between the colon and the second dollar should be a string representing the hudson build details). Currently this system works extremely well for the C# projects because this version information is stored as plain strings within the compiled code (you can literally use the unix strings command and see the version information); the problem is that the VC++ projects do not expose this information as strings (I have used a windows system to verify that the version information is correctly being set), so I'm not sure how to extract the version on a unix system. Any suggestions for either A) Getting a string representation of the version embedded in the compiled code, or B) A utility/script which can extract this information?

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  • how to update multiple tables in oracle DB?

    - by murali
    hi, i am using two tables in my oracle 10g. the first table having the keyword,count,id(primary key) and my second table having id, timestamp.. but i am doing any chages in the first table(keyword,count) it will reflect on the my second table timestamp.. i am using id as reference for both the tables... table1: CREATE TABLE Searchable_Keywords (KEYWORD_ID NUMBER(18) PRIMARY KEY, KEYWORD VARCHAR2(255) NOT NULL, COUNT NUMBER(18) NOT NULL, CONSTRAINT Searchable_Keywords_unique UNIQUE(KEYWORD) ); table2: CREATE TABLE Keywords_Tracking_Report (KEYWORD_ID NUMBER(18), PROCESS_TIMESTAMP TIMESTAMP(8) ); how can update one table with reference of another table.. help me plz...

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  • Drop duplicated axis label in Flex Chart

    - by Sean Chen
    Hi, All. I use LineChart in Flex with horizontal category axis and I need drop duplicated category label on the chart. The data I use are like that: {Product: "C1", Store: "S1", Profit: "1500}, {Product: "C2", Store: "S1", Profit: "1000}, {Product: "C3", Store: "S2", Profit: "800}, {Product: "C4", Store: "S2", Profit: "1200}, {Product: "C5", Store: "S3", Profit: "1800} Beacuse I set horizontalAxis.categoryField = "Store" , the chart show label "S1,S1,S2,S2,S3" on ths axes. However, both C1 and C2 data point group on the second "S1" category (as same as C3,C4 on second S2). If I accept group data point on the same x-poistion, is there any idea to drop duplicated label?

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  • URL Routing to Default Page

    - by ewitkows
    Hi everyone, I have an asp.net 4.0 web forms app setup with url rereouting. In development, my app's URL looks perfect. I have a page called enrollnow.aspx that responds to the routing, so if I type in localhost/enrollnow/abc, my app responds as expected. Once promoted into my staging environment however, the URL is off. I have a domain, and a virtual dir created off of my domain called "enrollnow". So basically, my URL outside of development is: mydomain.com/enrollnow/enrollnow/abc - where the first enrollnow is the directory, the second enrollnow is the page name, and the abc is my route value. Is there any way I can have the "default page" respond, so the second enrollnow (which is enrollnow.asp) isnt required? Perhaps I can rename my enrollnow.aspx page to default.aspx, or I can change the mapping in my routetable? Heres my routetable, incase that helps. thanks! Routetable: RouteTable.Routes.Add("PURLRoute", New Route("EnrollNow/{PURL_ID}", New PageRouteHandler("~/EnrollNow.aspx")))

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  • C# asp.net Howto load an aspx page from another project?

    - by Martijn
    I have 2 projects. One project is a core and contains the GUI which is always the same and acts like a kind of framework. The second project is an application that must be set in the framework. The framework consists of a masterpage and a content page (application.aspx). From my second project I want to load the application.aspx. Is this possible? And if so.. how?

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  • nodejs, mongodb - How do I operate on data from multiple queries?

    - by Ryan
    Hi all, I'm new to JS in general, but I am trying to query some data from MongoDB. Basically, my first query retrieves information for the session with the specified session id. The second query does a simple geospacial query for documents with a location near the specified location. I'm using the mongodb-native javascript driver. All of these query methods return their results in callbacks, so they're non-blocking. This is the root of my troubles. What I'm needing to do is retrieve the results of the second query, and create an Array of sessionIds of all the returned documents. Then I'm going to pass those to a function later. But, I can't generate this array and use it anywhere outside the callback. Does anyone have any idea how to properly do this? http://dpaste.org/wXiE/

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  • How to find specific row in MySQL query result?

    - by Šime Vidas
    So I do this to retrieve my entire table: $result = mysql_query( 'SELECT * FROM mytable' ); Then, in another part of my PHP-page, I do another query (for a specific row): $result2 = mysql_query( 'SELECT * FROM mytable WHERE id = ' . $id ); $row = mysql_fetch_array( $result2 ); So, I'm performing two querys. However, I don't really have to do that, do I? I mean, the row that I'm retrieving in my second query already is present in $result (the result of my first query), since it contains my entire table. Therefore, instead of doing the second query, I would like to extract the desired row from $result directly (while keeping $result itself in tact). How would I do that? OK, so this is how I've implemented it: function getRowById ( $result, $id ) { while ( $row = mysql_fetch_array( $result ) ) { if ( $row['id'] == $id ) { mysql_data_seek( $result, 0 ); return $row; } } }

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  • designing database tables using JDBC

    - by Noona
    I am creating a users table using JDBC and mysql, each user has a permissions list that comprises Integer values, I am wondering if I should use an array for storing these values and then have only 1 record for this user in the table, or simply create a new table that comprises 2 columns: user ID and permissions, and then have multiple records for each user that specify the user name in one columns and one permission value in the second column, the second option seems to be redundant since a permission value is a simple object that isn't associated with any other objects (like a student and courses list for example, because the course is associated with many other objects, like grade, teacher, etc, so in this case it is natural to have multiple records), but the first one seems to be a bit unnatural to me, so if someone has experience with these things and direct me? thanks

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  • Entity Framework model and foreign key property

    - by verror
    I have 2 tables that I import to EF model. First table has a property [section] that acts as foreign key to the second table. When I map this property in model to the table and try to compile I get this error: Problem in Mapping Fragments starting at lines 158, 174: Non-Primary-Key column(s) [Section] are being mapped in both fragments to different conceptual side properties - data inconsistency is possible because the corresponding conceptual side properties can be independently modified. If i remove this property from the model it passes, but when I query the data I don't have the section field. I know that I can get it by using the navigation field and reading this property from the second table, but to make it work I must include the other table in my query. var res = from name in Context.Table1.Include("Table2")... Why do I need to include the association just for one field?

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  • How do i convert from milliseconds to seconds units to be shown in a Label?

    - by Doron Muzar
    I have this code: private void Form1_MouseWheel(object sender, MouseEventArgs e) { if (leave == true) { if (e.Delta > 0) { if (timer1.Interval < 5000) { timer1.Interval += 1000; label2.Text = (timer1.Interval/1000).ToString(); } } else { if (timer1.Interval == 1000) { timer1.Interval -= 100; label2.Text = (timer1.Interval / 1000).ToString(); } } } } The original timer1 interval in the designer is set to 1000 milliseconds. In the mouse wheel event i did that it will show in the label2 the untis in seconds. And indeed when i move the mouse wheel up its slowing the timer and show it in seconds 1 2 3 4 5 The problem is with the second part i wanted that when its getting to 1 second or 1000 milliseconds if i will keep wheel it down it will show the units in 100 and change the timer1.interval in 100 units. So in label2 if it was on 1 second so now i will see 900 800 700 600 500 un till 100. And also the timer1 interval should be change to 900 milliseconds 800 700 600 untill 100. When its get to 100 just stop there dont keep getting under 100. The problem is with this part: if (timer1.Interval == 1000) { timer1.Interval -= 100; label2.Text = (timer1.Interval / 1000).ToString(); } Its not working at all. EDIT** My code now: if (leave == true) { if (e.Delta > 0) { if (timer1.Interval < 5000) { timer1.Interval += 1000; label2.Text = (timer1.Interval / 1000).ToString(); } } else { if (timer1.Interval > 1000) { timer1.Interval -= 1000; label2.Text = (timer1.Interval / 1000).ToString(); } else if (timer1.Interval <= 1000 && timer1.Interval > 100) { timer1.Interval -= 100; label2.Text = (timer1.Interval / (double)1000).ToString(); } } } But now if i was at 5 seconds(5000 milliseconds) now i move the wheel back down its counting 5 4 3 2 1 0 and stop on 0 It dosent show under 1 ...0.9 0.8 0.7 as it did before.

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  • Php Two Combo box in a form control each other. How?

    - by azad
    On php page in a form, One combo box has list of my Customer from mysql table customer. Another combo box has invoiceno stored in invoice table which has respective customer records. I want to select customer from first combo box and filter invoiceno from the second one according to the customer. Any one help me for php or java or Jquery or both codeings? Means if I select customer1 then in the second combo box should show all invoiceno respective to the custermer1. No Refresh or ReLoad or Post form Pl. If I get the first selection in a php variable format example $customer, it is enough for me. Thanks for any one help me.

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  • How to make multiple windows using Win32 API

    - by Steven Lu
    I see plenty of tutorials and articles showing me how to make a simple windows program, which is great but none of them show me how to make multiple windows. Right now I have working code that creates and draws a layered window and I can blit stuff using GDI to draw anything I want on it, drag it around, even make it transparent, etc. But I wanted a second rectangular area that I can draw to, drag around, etc. In other words, a second window. Probably want it to be a child window. Question is, how do I make it? Also, if anybody knows any good resources (online preferably) like articles or tutorials for window management in the Windows API, please share.

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  • Neat way of gettings position of my Object in linq collections

    - by Steve
    I currently have a object called Week. A week is part of a Season object. the season can contain many weeks. What I want to do is find the position of my week (is it the first week in the season (so #1) or is it the second (so #2). int i = 0; foreach ( var w in Season.Weeks.OrderBy(w => w.WeekStarts)){ if(w.Id == Id){ return i; } i+=1; } At the moment this is what I have. I order the weeks in a second by there start date to make sure they are in the correct order. and I cycle through them until I find the week that matches the week I am currently looking at. and return the int that I have been counting up.. I feel there should be a easier linq way to do this as it feels pretty messy!

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  • Cascading Dropdown List

    - by user333831
    I am working on a web app and trying to code a form with two dropdown lists. The list in the second dropdown will be dependent on the selection from the first one. The task itself isn’t too complicated except that once the first selection is made, I need to make a database call to pull the data for the second dropdown. This is where I am having difficulty. Both lists are in fact populated from a database. I am working on this in a python script and have been trying to do this w/ an onChange javascript function. The web app is built in Zope and page templates may be an option along w/ the python scripts.

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  • C# Express 2010 Multi-Threading

    - by Chris Evans
    Hi, I have a windows app that I have been running in c# Express 2008 for a year and have been trying to convert it over the last few days to 2010. The problem I am having is it is a multi-threaded application that has to run a series of code every second. What it does is have a main thread, that calls 3 worker threads, waits for them to finish then does some additional processing, sleeps till 1 second and runs again. The problem is part of the code can call a web service that takes 8 seconds to respond, so this bit of code gets called using ThreadPool.QueueUserWorkItem. The problem is when running in 2010 when this part of the code gets called the main thread continues to run but when it awakens the sub threads it hangs until the Threadpool method finishes running. This never happens in 2008. Any suggestions? So far I put that bit of code in it's own thread rather than using Threadpool but same issue.

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