Search Results

Search found 6992 results on 280 pages for 'exist'.

Page 164/280 | < Previous Page | 160 161 162 163 164 165 166 167 168 169 170 171  | Next Page >

• Is C# 4.0 Tuple covariant

  - by RichK

  (I would check this out for myself, but I don't have VS2010 (yet)) Say I have 2 base interfaces: IBaseModelInterface IBaseViewInterface And 2 interfaces realizing those: ISubModelInterface : IBaseModelInterface ISubViewInterface : IBaseViewInterface If I define a Tuple<IBaseModelInterface, IBaseViewInterface> I would like to set that based on the result of a factory that returns Tuple<ISubModelInterface, ISubViewInterface>. In C# 3 I can't do this even though the sub interfaces realize the base interfaces. And I'm pretty sure C# 4 lets me do this if I was using IEnumerable<IBaseModelInterface> because it's now defined with the in keyword to allow covariance. So does Tuple allow me to do this? From what (little) I understand, covariance is only allowed on interfaces, so does that mean there needs to be an ITuple<T1, T2> interface? Does this exist?

  Read the article

• WPF UserControl Embedded Animation

  - by Matt B

  Hi all, I have a UserControl called Beetle.xaml which has animation makeing the legs move. So far so good. I added this to my Background.xaml page by decaring the xmlns and xaml as: xmlns:my="clr-namespace:Intellident.Liber8.GUI.Theme.Jungle" and <my:Beetle VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="180,0,0,175"> <UserControl.RenderTransform> <MatrixTransform x:Name="trnBeetle" /> </UserControl.RenderTransform> </my:Beetle> However I get errors telling me that I can't declare my:Name as I'm in the wrong scope. I can't declare my:Name as this doesn't exist. How do I do this, I want to create a path animation on the beetle to make him walk around... Ta, Matt. EDIT: THought I'd point out that both Beetle.xaml and Background.xaml live in Intellident.Liber8.GUI.Theme.Jungle namescope.

  Read the article

• C#: Problem trying to resolve a class when two namespaces are similar

  - by rally25rs

  I'm running into an issue where I can't make a reference to a class in a different namespace. I have 2 classes: namespace Foo { public class Class1 { ... } } namespace My.App.Foo { public class Class2 { public void SomeMethod() { var x = new Foo.Class1; // compile error! } } } The compile error is: The type or namespace name 'Class1' does not exist in the namespace 'My.App.Foo' In this situation, I can't seem to get Visual Studio to recognize that "Foo.Class1" refers to the first class. If I mouse-over "Foo", it shows that its trying to resolve that to "My.App.Foo.Class1" If I put the line: using Foo; at the top of the .cs file that contains Class2, then it also resolves that to "My.App.Foo". Is there some trick to referencing the right "Foo" namespace without just renaming the namespaces so they don't conflict? Both of these namespaces are in the same assembly.

  Read the article

• How should I protect against hard link attacks?

  - by Thomas

  I want to append data to a file in /tmp. If the file doesn't exist I want to create it I don't care if someone else owns the file. The data is not secret. I do not want someone to be able to race-condition this into writing somewhere else, or to another file. What is the best way to do this? Here's my thought: fd = open("/tmp/some-benchmark-data.txt", O_APPEND | O_CREAT | O_NOFOLLOW | O_WRONLY, 0644); fstat(fd, &st); if (st.st_nlink != 1) { HARD LINK ATTACK! } What's the right way? Besides not using a world-writable directory.

  Read the article

• Running non-existing jar does not cause any expection/error

  - by Nikolay Kuznetsov

  Please, consider the following snippet which is being run from Eclipse. Even though the external jar file does not exist no Exception is thrown and process is not null. Why is it so? try { Process process = Runtime.getRuntime().exec("java -jar NonExisting.jar"); if (process == null) System.out.println("process = null"); else System.out.println(process); } catch (IOException e) { System.err.println(e); } It prints java.lang.ProcessImpl@1a4d139 If I run it manully from command line then there is an error: C:\Users\workspace\Project\src>java -jar NonExisting.jar Error: Unable to access jarfile NonExisting.jar

  Read the article

• Why is generated XAML spitting out namespaces that are not asked for?

  - by Matt Holmes

  I have a very simple XAML form, that has one namespace definition. For some reason, when Visual Studio processes that XAML file in to it's component .g.cs, it's sticking a bunch of namespace definitions at the top that I have not asked for in the XAML, or the code behind, and they are namespaces that no longer exist in my project. Thus the project is failing to compile. Why is Visual Studio sticking arbitrary namespace 'using' statements in my generated XAML .g.cs files? It's caused my entire project to break. Not one time did this .xaml file ever reference the namespaces in question, so it's doubly annoying.

  Read the article

• Determining a location's side of the road position with MapKit

  - by idStar

  Is there a way to use MapKit in iOS7 to not only get geocoding for an address, but determine what side of the road it is on? I'm not trying to build a full function navigation app, but similar to navigation apps that tell you things like "Your destination is in 100 feet on the right", I'd like to be able to obtain this information. Does MapKit give one a way to do this? Do I need to adopt routing privileges to access such, or is this just not available in the SDK period? If not available in the iOS7 SDK, knowing what options exist as services, would be a helpful pointer.

  Read the article

• Mapping words to numbers with respect to definition

  - by thornate

  As part of a larger project, I need to read in text and represent each word as a number. For example, if the program reads in "Every good boy deserves fruit", then I would get a table that converts 'every' to '1742', 'good' to '977513', etc. Now, obviously I can just use a hashing algorithm to get these numbers. However, it would be more useful if words with similar meanings had numerical values close to each other, so that 'good' becomes '6827' and 'great' becomes '6835', etc. As another option, instead of a simple integer representing each number, it would be even better to have a vector made up of multiple numbers, eg (lexical_category, tense, classification, specific_word) where lexical_category is noun/verb/adjective/etc, tense is future/past/present, classification defines a wide set of general topics and specific_word is much the same as described in the previous paragraph. Does any such an algorithm exist? If not, can you give me any tips on how to get started on developing one myself? I code in C++.

  Read the article

• Lightweight PHP server to bundle with application?

  - by munchybunch

  Does there exist some sort of PHP server that can be bundled with a locally-deployed application? It sounds wonky, but the end result is I can't use a remote web server to do anything. Clients will be downloading a package, and the plan is to use a Java backend that reads from a flat file. The flat file contains settings and is modified through a GUI written in HTML/JS, and this is where the server would come in. The forms in HTML should be able to submit to the server, which does a simple file write to the flat file. Is there any simple, lightweight server that has that simple feature? When running the executable for the application, it would start the installation process for the server before moving the web GUI files to the appropriate locations. Note that I'm doing this for a client, so I can't quite change the reqs and would rather not discuss their effectiveness. I would be ever thankful if people had suggestions for the server though!

  Read the article

• Sum in shell script

  - by Dinis Monteiro

  Why can't I create a sum of total words in this script? I get the result something like: 120+130 but it isn't 250 (as I expected)! Is there any reason? #!/bin/bash while [ -z "$count" ] ; do echo -e "request :: please enter file name " echo -e "\n\tfile one : \c" read count itself=counter.sh countWords=`wc -w $count |cut -d ' ' -f 1` countLines=`wc -l $count |cut -d ' ' -f 1` countWords_=`wc -w $itself |cut -d ' ' -f 1` echo "Number of lines: " $countLines echo "Number of words: " $countWords echo "Number of words -script: " $countWords_ echo "Number of words -total " $countWords+$countWords_ done if [ ! -e $count ] ; then echo -e "error :: file one $count doesn't exist. can't proceed." read empty exit 1 fi

  Read the article

• How a servlet can get the absolute path to a file outside of the servlet?

  - by WolfmanDragon

  We have been using System.getProperties("user.dir") to get the location of a properties file. Now that it has been deployed on Tomcat(via servlet), the System call is giving the location as tomcat and not at the location at where the properties file exist. How can we call the the properties file dynamically? Given: Tomcat is not the only way the app will be deployed We have no control on where the app may be placed. Relative paths will not work as that Vista is being used and Vista breaks relative paths. This must work on all OS, including(but not limited to) Linux, XP and Vista. EDIT I implied this, but in case I was not clear enough, I have no way of knowing the path String.

  Read the article

• Database for Importing NUnit results?

  - by McWafflestix

  I have a large set of NUnit tests; I need to import the results from a given run into a database, then characterize the set of results and present them to the users (email for test failures, web presentation for examining results). I need to be tracking multiple runs over time, as well (for reporting failure rates over time, etc.). The XML will be the XML generated by nunit-console. I would like to import the XML with a minimum of fuss into some database that can then be used to persist and present results. We will have a number of custom categories that we will need to be able to sort across, as well. Does anyone know of a database schema that can handle importing this type of data that can be customized to our individual needs? This type of problem seems like it should be common, and so a common solution should exist for it, but I can't seem to find one. If anyone has implemented such a solution before, advice would be appreciated as well.

  Read the article

• Different Providers, different websites, still think I'm logged in on the same website.

  - by Mike

  I have two web applications in the same solution. They both use different membership/profile and role providers. They are named differently. When I run the solution, and visit one website, and login everything is fine. I then go to the other solution and it thinks I am already logged in and the profile provider tries to load profile properties that do not exist. How can I keep them separate, so when I try to log in on one site, it doesn't think I'm still logged in on the other.

  Read the article

• Is there a Cart/Catalog app out there that isnt a full site?

  - by prodigitalson

  Every solution i come across seems to be a complete store with far too many options and too much functionality. I can write my own cart to get the minimal functionality i need out of the frontend, im just trying to cut out the time writing a complex backend. What im really looking for is something that offers the backend functionality for a product catalog, order management, etc. while providing a smooth and consistent API to access the data for my completely custom frontend application. The frontend will be in PHP so the API would have to be native PHP or some kind of web service interface i can create my own php models around. It would need to run on a LAMP stack and would preferably be written in PHP, Python, or Ruby just in case i need to customize the backend (she curently has ZenCart and hates it - says its far too complicated and sophisticated for her needs). Does such a thing exist? Or what would be the next best thing?

  Read the article

• MySql - only update some rows if the table exists - do not want an error thrown

  - by Pete Oakey

  I want to run an update query. The query will be run against multiple databases - not every database will have the table. I don't want the update to be attempted if the table does not exist. I don't want any error to be thrown - I just want the update to be ignored. Any ideas? EDIT: just to be clear - the query is executed in an automated deployment - no human interaction possible. EDIT2: the logic to say whether the update should run or not will need to be in the MySql query itself. This is not being run through a command prompt or batch or managed code.

  Read the article

• Is str.replace(..).replace(..) ad nauseam a standard idiom in Python?

  - by meeselet

  For instance, say I wanted a function to escape a string for use in HTML (as in Django's escape filter): def escape(string): """ Returns the given string with ampersands, quotes and angle brackets encoded. """ return string.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;').replace("'", '&#39;').replace('"', '&quot;') This works, but it gets ugly quickly and appears to have poor algorithmic performance (in this example, the string is repeatedly traversed 5 times). What would be better is something like this: def escape(string): """ Returns the given string with ampersands, quotes and angle brackets encoded. """ # Note that ampersands must be escaped first; the rest can be escaped in # any order. return replace_multi(string.replace('&', '&amp;'), {'<': '&lt;', '>': '&gt;', "'": '&#39;', '"': '&quot;'}) Does such a function exist, or is the standard Python idiom to use what I wrote before?

  Read the article

• What benefits can Java developer have from moving to a *NIX platform?

  - by dave-keiture

  Hi everyone, A friend of mine is a Java developer, who's using *NIX for ages. He claims that *NIX is for real Java geeks, whereas WIN is for dummies (and I'm one of them, according to him) and girls. When I ask him to argue his position, and explain, what's so good for Java developer on *NIX, he starts talking about console, wget, curl and grep. But sorry, wget and curl analogues exist for the WIN platform as well. As for the console - I'm using FAR Commander, and have access to the command line when I need. Moreover, even if I decide moving to *NIX, I will certainly use Netbeans or Eclipse on it, so there will be no big difference. Guys, who use Java on *NIX, could you please give me some real killer examples, when *NIX (any util or technique) dramatically increases Java development productivity (in the way the hints are given in "The Pragmatic Programmer"), or, which is also important, gives more fun from the process. Thanks in advance!

  Read the article

• MySQL: Insert row on table2 if row in table1 exists

  - by Andrew M

  I'm trying to set up a MySQL query that will insert a row into table2 if a row in table1 exist already, otherwise it will just insert the row into table1. I need to find a way to adapt the following query into inserting a row into table2 with the existing row's id. INSERT INTO table1 (host, path) VALUES ('youtube.com', '/watch') IF NOT EXISTS ( SELECT * FROM table1 WHERE host='youtube.com' AND path='/watch' LIMIT 1); Something kind of like this: INSERT ... IF NOT EXISTS(..) ELSE INSERT INTO table2 (table1_id) VALUES(row.id); Except I don't know the syntax for this.

  Read the article

• How to Check for record existence and do Insert in MYSQL ?

  - by karthik

  How to Check for record existence and do Insert or Update in MYSQL ? I have a script, which has set of Insert statements for multiple tables. Now when i try to execute the Insert statement, i want to do the following.. Check for the record existence and then do Insert or Update. If the Record is not exist do Insert. If the Record is already do not do anything. How to accomplish this ? Note : The script with Insert Statements are generated programmaticaly using SP

  Read the article

• Git tool to remove lines from staging if they consist only of changes in whitespace

  - by Max Howell

  The point in removing trailing whitespace is that if everyone does it always then you end up with a diff that is minimal, ie. it consists only of code changes and not whitespace changes. However when working with other people who do not practice this, removing all trailing whitespace with your editor or a pre-commit hook results in an even worse diff. You are doing the opposite of your intention. So I am asking here if there is a tool that I can run manually before I commit that unstages lines from staging that are only changes in whitespace. Also a bonus would be to change the staged line to have trailing whitespace removed for lines that have code changes. Also a bonus would be to not do this to Markdown files (as trailing space has meaning in Markdown). I am asking here as I fully intend to write this tool if it doesn't already exist.

  Read the article

• How to clear cache for previously installed InfoPath forms on a client computer?

  - by user313067

  Hi folks, We recently had a strange issue with an InfoPath 2007 form being opened from SharePoint 2007 and receiving the error message "the system cannot find the file specified". To be clear, this was not a form services enabled form. Anyway, after spending way too much time trying to figure out what was going on (nothing in the MOSS 2007 server log files), we determined that the user had previously installed an older version of the form (but with the same name) on their workstation using a no longer available msi file (meaning we could not uninstall it from the workstation). So I wanted to pass on a very simple solution for anyone who is unfortunate to run into this problem in the future (since I lost a great deal of hair over it): Fire up regedit, go to HKEY_LOCALMACHINE-Software-Microsoft-Office-InfoPath-SolutionsCatalog. Locate the key that has the previously installed form name, and delete it. This will cause InfoPath to stop trying to open the form locally (which is either old or doesn't exist) and force it to open your form from SharePoint. Hope this helps someone!

  Read the article

• Drupal: I cannot connect to the database.. please help

  - by Patrick

  hi, I've hard time to make Drupal work on IIS Microsoft server. I've succesfully run Joomla on the same server so I'm pretty sure the following information are correct: host: localhost user: user pass: pass databaseName = servername_databasename I've set the following line in settings.php file: $db_url = 'mysql://user:password@localhost/servername_databasename'; but what I get is this: If you are the maintainer of this site, please check your database settings in the settings.php file and ensure that your hosting provider's database server is running. For more help, see the handbook, or contact your hosting provider. I don't get any other error message such as: database doesn't exist, user/pass wrong.. just this. The database is running, I can access with phpmyadmin. I've tried both "mysql" and "mysqli". The host is a private server (IIS Microsoft), the database is Mysql The database and website files upload have also been succesfull.. so I dunno what to do to fix this issue. thanks

  Read the article

• WPF DataGrid Entity Framework: Is it possible to bind a datagrid column to a method/function?

  - by seddler

  Hi. I'm wondering if it's possible to bind a gridcolumn (field) to a method or function of an entity? For example I have two entities Person and Company that both inherit the abstract entity Addressee. In my grid I'm listing all Addressees (both persons and companies). I have a column, Name, in the datagrid that I whish to bind to a function GetName(). This function is part of the entity Addressee and based on what type of addressee it is it returns CompanyName (if company) or FirstName+' '+LastName (if person). I also have tried to add a partial class Addressee with a property Name that does the same thing as the function descried over, but this failes when I'm saving to database because the column Name does not exist in database. Can anybody please help me? :-)

  Read the article

• How 404 error asp.net mvc 2 IIS 7?

  - by Dmitriy

  Hello! I tried to catch 404 errors like this... But when i try to load http://localhost:11415/wfwe/wefwe/ - all good work. When i try to load http://localhost:11415/order/ - fail (with error The RouteData must contain an item named 'action' with a non-empty string value.) When i try to load http://localhost:11415/Images/ - fail with error File does not exist My routes: routes.Add("Order", new LowercaseRoute("Order/{action}/{id}", new RouteValueDictionary( new { controller = "Order", action = "", id = UrlParameter.Optional }), new MvcRouteHandler())); routes.Add("NotFound", new LowercaseRoute("{*url}", new RouteValueDictionary( new { controller = "Pages", action = "Http404", }), new MvcRouteHandler())); Why route NotFound - don't catch all 404 error. And When i try to upload to my hosting and try 404 i get this error (NotFound route not work at all) 404 - File or directory not found. The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable. I work with this all day, but nothig... please help me

  Read the article

• Visual Studio 2008 Explicit Reference Error

  - by Alan

  I have a project which references a dll in the same solution (called "Common"). Common has two types of errors with the same names but different namespaces i.e. Common.Login.UserDeleted Common.Imaging.UserDeleted When I type UserDeleted visual studio recognizes both of these and asks for which it is ("ambiguous reference"). I right-click UserDeleted and select one of the two above, yet it then says that the type or reference doesn't exist! It doesn't make any sense. Why is this happening? I can't compile my program until I find a solution to this, thanks

  Read the article

< Previous Page | 160 161 162 163 164 165 166 167 168 169 170 171  | Next Page >