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• 'Auto' option missing for TreeView subclass

  - by Jared

  I've created a custom control that subclasses TreeView. Right now it's completely empty, doesn't override anything. However when I place an instance in the designer the 'Auto' value for the Width and Height fields is no longer available as it is with the default TreeView. What am I missing?

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• Using google maps as an input method

  - by Vasiliy Sharapov

  I'm wondering if it's possible to use gmaps pretty much as a type of input. Normally for Location a user has to enter: street address town/city state/province postal code country This seems too clunky to me, does anyone here know of a more elegant process? My perfect address-entering interface is a gmaps search bar with a map under it. When the user clicks a marker instead of a speech bubble containing location information they get one containing a submit button or equivalent. I'm not sure anything like this has been implemented before.

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• C++ compiler structures such as Virtual method Table etc

  - by Roger

  I am aware of the C++ Virtual Table which allows dynamic dispatch for doing things at runtime (although if I am honest I am not completely sure of the full list of things it achieves). I am wondering what other "low level" aspects of C++ are there, which one doesnt usually come across when learning the C++ language? Things like: -How is multithreading and locking on objects performed? -Overloading/overwriting functions -Generics Are there other "structures", similar to the vtable, which assist with these types of things on a lower level? (and if anyone can help with what the VTable actually does it would be most appreciated!)

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• Throwing and catching exceptions in the same function/method

  - by usr

  I've written a function that asks a user for input until user enters a positive integer (a natural number). Somebody said I shouldn't throw and catch exceptions in my function and should let the caller of my function handle them. I wonder what other developers think about this. I'm also probably misusing exceptions in the function. Here's the code in Java: private static int sideInput() { int side = 0; String input; Scanner scanner = new Scanner(System.in); do { System.out.print("Side length: "); input = scanner.nextLine(); try { side = Integer.parseInt(input); if (side <= 0) { // probably a misuse of exceptions throw new NumberFormatException(); } } catch (NumberFormatException numFormExc) { System.out.println("Invalid input. Enter a natural number."); } } while (side <= 0); return side; } I'm interested in two things: Should I let the caller worry about exceptions? The point of the function is that it nags the user until the user enters a natural number. Is the point of the function bad? I'm not talking about UI (user not being able to get out of the loop without proper input), but about looped input with exceptions handled. Would you say the throw statement (in this case) is a misuse of exceptions? I could easily create a flag for checking validity of the number and output the warning message based on that flag. But that would add more lines to the code and I think it's perfectly readable as it is. The thing is I often write a separate input function. If user has to input a number multiple times, I create a separate function for input that handles all formatting exceptions and limitations.

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• Need help with a method to randomly lay mines in a minesweeper game

  - by avatarX

  So my Java minesweeper game is represented as a int[][] where -1 represents a mine. When I initialize my game I need to randomly place x amount of mines. What is an elegant way of doing this? I was thinking of using an ArrayList with the coordinates of each cell, randomly selecting it, changing the state of the int[][] and then removing that Point. This would ensure that no point is selected twice. Is there a more elegant way of doing this?

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• Template Method

  Consider you need to develop some searching engine. Engine will look for different messages that has been sent. Searching process consists with few operations which make sense for each of message, BUT could have some characteristic which differs.You want to write Searcher, which will allow you encap

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• Blackberry - "[projectname].debug file is missing" and "I/O Error: Cannot find program "jar"

  - by TreeUK

  I'm running eclipse with the Blackberry Java Plug-in, working on a 1.4.5 Blackberry project. The project has been building and debugging in the emulator normally until I started getting: A prompt saying "[projectname].debug file is missing". A message in the Blackberry Packaging Console saying "I/O Error: Cannot find program "jar": CreateProcess error=2." Anyone have any ideas what could be causing this?

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• Windows recv method usage

  - by vandamon taigi

  I'm making a multiplayer game and I have an issue with the recv function ( or the send one , not sure ). Server side code : char* UserName = new char[256]; ZeroMemory(UserName,256); recv(sConnect,UserName,256,0); // works char* Password = new char[256]; ZeroMemory(Password,256); recv(sConnect,Password,256,0); // works users[ ++usercount ] = new Client(UserName,Password,sConnect); if( users[usercount] ->GetLogInSuccesful() ) send(sConnect,"0x0001",6,0); // debugging shows it gets here and sends the data. Client side code : send(server->getsConnect(),User,256,0); // works send(server->getsConnect(),Pass,256,0); // works char* Response = new char[6]; ZeroMemory(Response,6); recv(server->getsConnect(),Response,6,0); // gets stuck here. Any ideea why does it get stuck on that recv ? I also tried by making response [256] or such.

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• Dynamic binding in C++

  - by chmike

  I'm implementing a CORBA like server. Each class has remotely callable methods and a dispatch method with two possible input, a string identifying the method or an integer which would be the index of the method in a table. A mapping of the string to the corresponding integer would be implemented by a map. The caller would send the string on the first call and get back the integer with the response so that it simply has to send the integer on subsequent calls. It is just a small optimization. The integer may be assigned dynamically on demand by the server object. The server class may be derived from another class with overridden virtual methods. What could be a simple and general way to define the method binding and the dispatch method ?

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• How i call NSObject method in UIViewController class method?

  - by Rajendra Bhole

  Hi,I am the beginner in iphone development. I develop an application in which i calling some GPS related information(method name is getGPSInformation{}) in clsGPS{} is an pure NSObject class.The code is as follows, import "clsGPS.h" -(void)getGPSInformation { locationManager = [[CLLocationManager alloc ] init]; locationManager.delegate = self; locationManager.distanceFilter = 5.0f; locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters; [locationManager startUpdatingLocation]; } I want the above method calling in UIViewController class. How i call this method in UIViewController class from that i automatically call this method at application launching time? should i calling that method in viewDidLoad event or viewWillAppear method?

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• Keyword Research - Most Important SEO Method

  Keyword optimization involves proper keyword choice and positioning based on comprehensive keyword research. It's likely you have an excellent site and effective programming to support your site however all these will be of no avail if you do not obtain presence within the search engines. You will not get the desired return of investment if the site does not make it to the search engines.

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• Imputing missing data in aligned sequences

  - by Kwame Oduro

  I want a simple perl script that can help me impute missing nucleotides in aligned sequences: As an example, my old_file contains the following aligned sequences: seq1 ATGTC seq2 ATGTC seq3 ATNNC seq4 NNGTN seq5 CTCTN So I now want to infer all Ns in the file and get a new file with all the Ns inferred based on the majority nucleotide at a particular position. My new_file should look like this: seq1 ATGTC seq2 ATGTC seq3 ATGTC seq4 ATGTC seq5 CTCTC A script with usage: "impute_missing_data.pl old_file new_file" or any other approach will be helpful to me. Thank you.

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• Best Practice Method for Including Images in a DataGrid using MVVM

  - by Killercam

  All, I have a WPF DataGrid. This DataGrid shows files ready for compilation and should also show the progress of my compiler as it compiles the files. The format of the DataGrid is Image|File Path|State -----|---------|----- * |C:\AA\BB |Compiled & |F:PP\QQ |Failed > |G:HH\LL |Processing .... The problem is the image column (the *, &, and are for representation only). I have a ResourceDictionary that contains hundreds of vector images as Canvas objects: <ResourceDictionary xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"> <Canvas x:Key="appbar_acorn" Width="48" Height="48" Clip="F1 M 0,0L 48,0L 48,48L 0,48L 0,0"> <Path Width="22.3248" Height="25.8518" Canvas.Left="13.6757" Canvas.Top="11.4012" Stretch="Fill" Fill="{DynamicResource BlackBrush}" Data="F1 M 16.6309,18.6563C 17.1309,8.15625 29.8809,14.1563 29.8809,14.1563C 30.8809,11.1563 34.1308,11.4063 34.1308,11.4063C 33.5,12 34.6309,13.1563 34.6309,13.1563C 32.1309,13.1562 31.1309,14.9062 31.1309,14.9062C 41.1309,23.9062 32.6309,27.9063 32.6309,27.9062C 24.6309,24.9063 21.1309,22.1562 16.6309,18.6563 Z M 16.6309,19.9063C 21.6309,24.1563 25.1309,26.1562 31.6309,28.6562C 31.6309,28.6562 26.3809,39.1562 18.3809,36.1563C 18.3809,36.1563 18,38 16.3809,36.9063C 15,36 16.3809,34.9063 16.3809,34.9063C 16.3809,34.9063 10.1309,30.9062 16.6309,19.9063 Z "/> </Canvas> </ResourceDictionary> Now, I want to be able to include these in my image column and change them at run-time. I was going to attempt to do this by setting up a property in my View Model that was of type Image and binding this to my View via: <DataGrid.Columns> <DataGridTemplateColumn Header="" Width="SizeToCells" IsReadOnly="True"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <Image Source="{Binding Canvas}"/> </DataTemplate> </DataGridTemplateColumn.CellTemplate> </DataGridTemplateColumn> </DataGrid.Columns> Where in the View Model I have the appropriate property. Now, I was told this is not 'pure' MVVM. I don't fully accept this, but I want to know if there is a better way of doing this. Say, binding to an enum and using a converter to get the image? Any advice would be appreciated.

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• Image Source binded to missing file

  - by Am

  How can I display a default image when the binded path file is missing? <Image Source="{Binding DisplayedBook.ImagePath}" /> My solution: Used a converter, which check if the image exists and returns the appropriate path.

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• What's Your Method of not forgetting the end brackets, parentheses

  - by JMC Creative

  disclaimer: for simplicity sake, brackets will refer to brackets, braces, quotes, and parentheses in the couse of this question. Carry on. When writing code, I usually type the beginning and end element first, and then go back and type the inner stuff. This gets to be a lot of backspacing, especially when doing something with many nested elements like: jQuery(function($){$('#element[input="file"]').hover(function(){$(this).fadeOut();})); Is there a more efficient way of remembering how many brackets you've got open ? Or a second example with quotes: <?php echo '<input value="'.$_POST['name'].'" />"; ?>

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• Search Engine Placement Marketing - The Best Method to Increase Your Visitor Numbers

  There is now a huge number of websites on the internet and the number increases all the time. If you have recently launched your own site then you are going to need as much advice as possible on search engine placement marketing so that yours will get the best rankings. The methods for this change constantly.

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• Html & JavaScript validation problem: "Element script is missing required attribute src"

  - by jess

  While validating this snipit: <script type="text/javascript" charset="utf-8"> /* <![CDATA[ */ jQuery.post('http://domain.com/dev/wp-admin/admin-ajax.php', {action: 'wpp_update', token: '2e85204387', id: 214}); /* ]]> */ </script> I am getting the validation error: "Element script is missing required attribute src." The page has an HTML5 doctype and is encoded as utf-8.

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• Proper caching method with .htaccess

  - by mark075

  There are a lot of snippets that enable caching on a website and I don't know which one should I use. The most popular is something like this: <IfModule mod_expires.c> ExpiresActive On ExpiresByType image/jpg "access 1 year" ExpiresByType image/png "access 1 year" ExpiresByType text/css "access 1 month" ExpiresDefault "access 2 days" </IfModule> I also found something similar, but with keyword 'plus'. Like this: ExpiresByType image/png "access plus 2592000 seconds" What does it mean, because I didn't find anything in the documentation. Another snippet I found: <ifModule mod_headers.c> <filesMatch "\.(ico|jpe?g|png|gif|swf)$"> Header set Cache-Control "max-age=2592000, public" </filesMatch> <filesMatch "\.(css)$"> Header set Cache-Control "max-age=604800, public" </filesMatch> <filesMatch "\.(js)$"> Header set Cache-Control "max-age=216000, private" </filesMatch> <filesMatch "\.(x?html?|php)$"> Header set Cache-Control "max-age=600, private, must-revalidate" </filesMatch> </ifModule> What is the best practice?

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• missing subscript c++

  - by Makenshi

  right now c++ is giving me this error: error C2087 'color' missing subscript first time i get this and i dont know what to do .< hope any1 can help me struct Color{ float r; float g; float b; };Color color[][]; and im using it here for(int i=0;i<cubes;i++) { color[i][0].r = fRand();color[i][0].g=fRand(.5);color[i][0].b=fRand(); ...etc

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• Search Engine Optimization Strategy - The Easiest Advertising Method

  Use my Search Engine Optimization Strategy and stop spending hundreds or even thousands of dollars trying to advertise your website. You may know or not know that advertising on internet really may cost you that kind of money, but I really want to show you that always there is a better way to advertise on the web, actually there is a FREE way to do it.

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• Best method to implement a filtered search

  - by j0N45

  I would like to ask you, your opinion when it comes to implement a filtered search form. Let's imagine the following case: 1 Big table with lots of columns It might be important to say that this SQL Server You need to implement a form to search data in this table, and in this form you'll have several check boxes that allow you to costumize this search. Now my question here is which one of the following should be the best way to implement the search? Create a stored procedure with a query inside. This stored procedure will check if the parameters are given by the application and in the case they are not given a wildcard will be putted in the query. Create a dynamic query, that is built accordingly to what is given by the application. I am asking this because I know that SQL Server creates an execution plan when the stored procedure is created, in order to optimize its performance, however by creating a dynamic query inside of the stored procedure will we sacrifice the optimization gained by the execution plan? Please tell me what would be the best approach in your oppinion.

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• SQL query showing missing expression

  - by Ashok Dasari

  Query to pull the data between Yseterday 6AM to today 6AM ... SELECT lot_id, log_time, batch_no, eqp_id, STATION_ID, EXTRACTVALUE (META_DATA, '/lot_info/A3') AS A3, EXTRACTVALUE (META_DATA, '/lot_info/A3Info') AS A3Info, EXTRACTVALUE ( META_DATA, '/lot_info/apc_status_info' ) AS apc_status_info FROM t_dlis_log_history WHERE ( (EQP_ID = 'ALC4360') OR (EQP_ID = 'ALC4361') OR (EQP_ID = 'ALC1360') OR (EQP_ID = 'ALC1361') OR (EQP_ID = 'ALC1362') OR (EQP_ID = 'ALC1363') OR (EQP_ID = 'ALC1364') OR (EQP_ID = 'ALC1365') OR (EQP_ID = 'ALC355') OR (EQP_ID = 'ALC353') OR (EQP_ID = 'ALC4350') OR (EQP_ID = 'ALC354') ) AND (( log_time >= DATEADD ( HOUR, 6, CONVERT(VARCHAR (10), GETDATE (), 110) ) AND ( log_time <= DATEADD ( HOUR, 6, CONVERT(VARCHAR (10), GETDATE () + 1, 110) ) ) ) It is showing error missing expression ...

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• Windows 7 Missing Shortnames

  - by Aaron Bush

  I noticed that if you get a Scripting.File object from certain windows files (Example: any wav in C:\Windows\Media) the Scripting.File.ShortPath property shows the long path. Curious I dropped to the command prompt and tried Dir /A /X and sure enough the short paths were missing from all the files in that directory. Anyone know: A.) What that's all about? B.) How to get the short path of a file that doesn't seem to have one?

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• Find missing number in sequence in set or list

  - by Dave18

  If a std::set or std::list contains a sequence of natural numbers (1, 2, 3..). would there be a function in standard library to find the missing number?

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• Missing Required Gems - javan-whenever and cron job in rails

  - by Matenia Rossides

  Hi, I have finally managed to get javan-whenever gem working on my site5 server, and updating the crontab is quite easy, however whenever a cron job is run with the code that is generated, i get a "missing required gems" error where it lists about 8/10 of my gems. Has anyone else had this problem? If so, what would the solution be. The funny thing is that when it outputs where my gems are, this is all correct, and the gems are loading fine from within my application. Cheers, Matenia

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