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  • Adding a ppa repo and get key signed - no valid OpenPGP data - proxy issue?

    - by groovehunter
    I want to get a ppa key signed I tried apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A258828C Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys A258828C gpg: requesting key A258828C from hkp server keyserver.ubuntu.com gpgkeys: HTTP fetch error 7: couldn't connect to host gpg: no valid OpenPGP data found. gpg: Total number processed: 0 and wget -q http://ppa.launchpad.net/panda3d/ppa/ubuntu/dists/lucid/Release.gpg -O- | apt-key add - gpg: no valid OpenPGP data found I am behind a proxy , in apt.conf it is configured correctly Acquire::http::Proxy "http://proxy.mycompany.de:3128"; I also tried setting proxy export http_proxy="proxy.mycompany.de:3128" export https_proxy="proxy.mycompany.de:3128"

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  • How can I Implement KeyListeners/ActionListeners into the JFrame?

    - by A.K.
    I'll get to the point: I have a player in my game that you control with the keyboard yet the key methods in the player class and ActionListener w/ KeyAdapter in the Board class don't seem to fire. So far I've tried adding these key methods into the JFrame, doesn't seem to let me move him even though other objects that I have (enemies) can move fine. Here's part of the JFrame class with the event listeners: frm.addKeyListener(KeyBoardListener); public void mouseClicked(MouseEvent e) { nSound.play(); StartB.setContentAreaFilled(false); cards.remove(StartB); frm.remove(TitleL); frm.remove(cards); frm.setLayout(new GridLayout(1, 1)); frm.add(nBoard); //Add Game "Tiles" Or Content. x = 1200 nBoard.setPreferredSize(new Dimension(1200, 420)); cards.revalidate(); frm.validate(); } public KeyListener KeyBoardListener = new KeyListener() { @Override public void keyPressed(KeyEvent args0) { int key = args0.getKeyCode(); if(key == KeyEvent.VK_LEFT) { nBoard.S.vx = -4; } if(key == KeyEvent.VK_RIGHT) { nBoard.S.vx = 4; } if(key == KeyEvent.VK_UP) { nBoard.S.vy = -4; } if(key == KeyEvent.VK_DOWN) { nBoard.S.vy = 4; } if(key == KeyEvent.VK_SPACE) { nBoard.S.fire(); } } @Override public void keyReleased(KeyEvent args0) { int key = args0.getKeyCode(); if(key == KeyEvent.VK_LEFT) { nBoard.S.vx = 0; } if(key == KeyEvent.VK_RIGHT) { nBoard.S.vx = 0; } if(key == KeyEvent.VK_UP) { nBoard.S.vy = 0; } if(key == KeyEvent.VK_DOWN) { nBoard.S.vy = 0; } } @Override public void keyTyped(KeyEvent args0) { // TODO Auto-generated method stub } };

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  • Mapping Super+hjkl to arrow keys under X

    - by Bill Casarin
    I'm trying to map: Super+h -> Left Super+j -> Down Super+k -> Up Super+l -> Right globally under X. The idea is I don't want to leave my home row that often to use the arrow keys, so I'll use the Super modifier + hjkl to emulate the arrow keys under X. Is there any way to do this? One thing I've tried is xbindkeys + xte using this configuration: "xte 'keydown Up' 'keyup Up'" Mod4+k "xte 'keydown Down' 'keyup Down'" Mod4+j "xte 'keydown Left' 'keyup Left'" Mod4+h "xte 'keydown Right' 'keyup Right'" Mod4+l but there seems to a large delay between me pressing the key and noticing any result, and most of the time nothing happens at all. Is there a more elegant way of doing this that actually works with no delay?

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  • Is it possible to remove a particular host key from SSH's known_hosts file?

    - by Kaustubh P
    I usually end up deleting the entire known_hosts file, which I have no problems for. But just out of curiosity, Is it possible to remove just a single entry? I opened the known_hosts file, and other han understanding that the file contains fingerprints for a given machine, I dont understand anything. Below is the message I faced, which led me to ask this question. Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message. Offending key in /home/wissen16/.ssh/known_hosts:1 RSA host key for foo.com has changed and you have requested strict checking. Host key verification failed. Thanks.

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  • Configuring Redhat / CentOS 5 SSH to authenticate to IPA server with public keys

    - by Kyle Flavin
    I'm trying to configure some Red Hat/CentOS servers to use an ipa-server on CentOS 6 for SSH authentication with public keys. I'm storing the public keys on the IPA server, which works great on Centos6 using "AuthorizedKeysCommand /usr/bin/sss_ssh_authorizedkeys" in /etc/ssh/sshd_config. However, on RH 5.10, neither the "AuthorizedKeysCommand" directive or the "/usr/bin/sss_ssh_authorizedkeys" command exist to pull the public key from the directory. Is there a different way to make this work? Googling this mostly returns instructions for setting it up on 6.

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  • Is it possible to remove a particular host key from known_hosts?

    - by Kaustubh P
    I usually end up deleting the entire known_hosts file, which I have no problems for. But just out of curiosity, Is it possible to remove just a single entry? I opened the known_hosts file, and other han understanding that the file contains fingerprints for a given machine, I ddnt understand anything. Below is the message I faced, which led me to ask this question. Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message. Offending key in /home/wissen16/.ssh/known_hosts:1 RSA host key for foo.com has changed and you have requested strict checking. Host key verification failed. Thanks.

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  • How can I have the passphrase for a private key remembered for a user?

    - by Jon Cram
    I have a collection of web services running on Ubuntu Server 12.04 that pull code from a github repository. These services run under a specific user (let's call that user 'example'). In /home/example/.ssh/is_rsa is the private key associated with the relevant github account. When performing an operation such as git pull I am greeted with: Enter passphrase for key '/home/simplytestable/.ssh/id_rsa':. Enter the correct password and all is ok. The same private key is present on local development Ubuntu Desktop 12.04 machines and no passphrase is asked for. I'd like to be able to have the passphrase remembered so that upon entering it once it is never asked for again. This will aid in automating various web service updates. I'm guessing that the passphrase needs to be stored in the relevant user's keychain such that I don't have to enter it every time the private key needs to be unlocked. How can I achieve this?

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  • Encrypt tar file asymmetrically

    - by DerMike
    I want to achieve something like tar -c directory | openssl foo > encrypted_tarfile.dat I need the openssl tool to use public key encryption. I found an earlier question about symmetric encryption at the command promt (sic!), which does not suffice. I did take a look in the openssl(1) man page and only found symmetric encryption. Does openssl really not support asymmetric encryption? Basically many users are supposed to create their encrypted tar files and store them in a central location, but only few are allowed to read them.

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  • What are the common pitfalls that would stop Authorised Key SSH access, and how do I find and correct for them?

    - by Ashimema
    EDIT: This question was reworked to make it more useful to the community and less specific to me. Questions seem to come up reasonably often regarding ssh and problems with authorised keys access, but very few seem to have a clear answer anywhere; Server keeps asking for password after I've copied my SSH Public Key to authorized_keys ssh not accepting public key how do I use ssh with key access in 11.10 passwordless ssh not working So, In the communities opinion, what is the tried and tested method for getting to the bottom of such problems?

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  • ^+Left Arrow and ^+Right Arrow suddenly stopped working on OS X

    - by user31122
    Hello. I'm not really sure what to make of this. The key combination of ^? and ^? have stopped working for one of the two users on my OS X installation. I use these keys all the time (switching tabs in terminal, IntelliJ primarily), and it's driving me crazy. On one user account, it works fine. On the other, it doesn't. This happened today and nothing significant comes to mind that would have caused some weird keybinding issue. If anyone has heard of or experienced anything like this, I would very much appreciate your advice! Thanks.

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  • ^+Left Arrow and ^+Right Arrow suddenly stopped working on OS X

    - by user293261
    Hello. I'm not really sure what to make of this. The key combination of ^← and ^→ have stopped working for one of the two users on my OS X installation. I use these keys all the time (switching tabs in terminal, IntelliJ primarily), and it's driving me crazy. On one user account, it works fine. On the other, it doesn't. This happened today and nothing significant comes to mind that would have caused some weird keybinding issue. If anyone has heard of or experienced anything like this, I would very much appreciate your advice! Thanks.

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  • irssi keybinding: backward_word/forward_word

    - by vikenemesh
    I'm currently experimenting with irssi as my irc client of choice and I'm getting along pretty well. BUT there is one thing I still need to get done. Somehow it isn't possible for me to use the usual CTRL+Left/Right to navigate between words in my input line. For the record: I'm using irssi on a linux-box through a screen session brought to my windows machine via ssh/putty. I already tried some key binding in irssi, maybe I did them wrong? /bind meta-n backward_word /bind meta-m forward_word both work fine. But neither /bind ^left backward_word /bind ^right backward_word nor /bind cleft-left backward_word /bind cleft-right backward_word work for a CTRL+Left/Right setup. Any Ideas?

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  • Unable to deactivate windows xp by modifying the license in the registry

    - by ConorWalsh
    I need to deactivate windows xp so I can set it up with a new license. Every tutorial I've visited follow the same steps. (Example http://www.ehow.com/how_6665848_deactivate-windows-xp-pro.html) The tutorials state that the 00BE timer file located in the registry needs to be modified. It is found by going to the registry and navigating through "HKEY_LOCAL_MACHINE," "Software," "Microsoft," "WindowsNT," "CurrentVersion" and "WPAEvents." After the file is modified Windows should be deactivated. However it never does. The value changes but when I run the command to add a new license key it states "windows is already activated". I've done this before on other machines at it worked fine. I can't find any other methods to change the license in XP. Has anyone ever had this issue or knows of another way of deactivating windows?

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  • Catch headset pause/play keypresses in Windows

    - by akshay2000
    I have a new Ultrabook which has single audio jack for input and output instead for separate 3.5 mm jacks we used to have on older machines. The jack is probably similar to American Audio Jack specification or like the one found on Macbook Pro. I have tried to use it with the Apple, HTC, Nokia earphones which ship with most of the smartphones. Microphone on the headset works the way it should. Thing is that the headsets also come with remote controls to control volume and playback. I am sure that those key presses are sent to the Windows. I was hoping to catch those events and bind those to actual media keys so that I can control music playback. I guess this happens on Macs. I want to do the similar thing on the Windows. I'm just not sure where I can catch the events. Driver level? Application level?

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  • Enable [command] key to register as something other than just [ctrl]?

    - by gojomo
    I'm running 10.04LTS inside VMWare Fusion on a Mac. The [command] key (aka [windows] on many keyboards) is almost always behaving as if it was [ctrl], even though I done anything explicit to request that behavior. In fact, in SystemPreferencesKeyboardLayoutsOptionsAlt/Win key behavior, 'default' is chosen (rather than the 'Control is mapped to Win keys' option). However, choosing other options there do not seem to change the handling of [command], at least not as tested in the SystemPreferenceKeyboard Shortcuts app. (No matter what I've tried, [command]-x is always detected as [Ctrl]-x in that app.) I've tried: various options under SystemPreferencesKeyboardLayoutsOptionsAlt/Win key behavior toggling the VMWare Fusion Preferences KKeyboard & Mouse Key Mappings setup which claims to map '[command]' to '[windows]', and restarting the VM in each position the xmodmap lines suggested at https://help.ubuntu.com/community/MappingWindowsKey And yet, it's clear that all Ubuntu apps aren't merging [ctrl] and [command], because in 'Terminal', [shift]-[ctrl]-c will Copy, but [shift]-[command]-c will not. If the [command]/[windows] key was recognized as anything else ('Super', 'Meta', 'Hyper'? I don't care as long as it's not 'Control'), then I could achieve my real goal (which happens to be enabling CMD-based cut/copy/paste in PyCharm, while leaving CTRL-X/etc available for emacs-like bindings). I think any solution which manages to make [command]-x appear as something other than [ctrl]-x in PreferencesKeyboard Shortcuts will probably do the trick.

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  • ssh asks for password despite ssh-copy-id

    - by Aliud Alius
    I've been using public key authentication on a remote server for some time now for remote shell use as well as for sshfs mounts. After forcing a umount of my sshfs directory, I noticed that ssh began to prompt me for a password. I tried purging the remote .ssh/authorized_keys from any mention the local machine, and I cleaned the local machine from references to the remote machine. I then repeated my ssh-copy-id, it prompted me for a password, and returned normally. But lo and behold, when I ssh to the remote server I am still prompted for a password. I'm a little confused as to what the issue could be, any suggestions?

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  • Problem creating a database with PHP PDO

    - by Leandro Alonso
    Hello guys, I'm having a problem with a SQL query in my PHP Application. When the user access it for the first time, the app executes this query to create all the database: CREATE TABLE `databases` ( `id` bigint(20) NOT NULL auto_increment, `driver` varchar(45) NOT NULL, `server` text NOT NULL, `user` text NOT NULL, `password` text NOT NULL, `database` varchar(200) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ; -- -------------------------------------------------------- -- -- Table structure for table `modules` -- CREATE TABLE `modules` ( `id` bigint(20) unsigned NOT NULL auto_increment, `title` varchar(100) NOT NULL, `type` varchar(150) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=29 ; -- -------------------------------------------------------- -- -- Table structure for table `modules_data` -- CREATE TABLE `modules_data` ( `id` bigint(20) NOT NULL auto_increment, `module_id` bigint(20) unsigned NOT NULL, `key` varchar(150) NOT NULL, `value` tinytext, PRIMARY KEY (`id`), KEY `fk_modules_data_modules` (`module_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=184 ; -- -------------------------------------------------------- -- -- Table structure for table `modules_position` -- CREATE TABLE `modules_position` ( `user_id` bigint(20) unsigned NOT NULL, `tab_id` bigint(20) unsigned NOT NULL, `module_id` bigint(20) unsigned NOT NULL, `column` smallint(1) default NULL, `line` smallint(1) default NULL, PRIMARY KEY (`user_id`,`tab_id`,`module_id`), KEY `fk_modules_order_users` (`user_id`), KEY `fk_modules_order_tabs` (`tab_id`), KEY `fk_modules_order_modules` (`module_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; -- -------------------------------------------------------- -- -- Table structure for table `tabs` -- CREATE TABLE `tabs` ( `id` bigint(20) unsigned NOT NULL auto_increment, `title` varchar(60) NOT NULL, `columns` smallint(1) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=12 ; -- -------------------------------------------------------- -- -- Table structure for table `tabs_has_modules` -- CREATE TABLE `tabs_has_modules` ( `tab_id` bigint(20) unsigned NOT NULL, `module_id` bigint(20) unsigned NOT NULL, PRIMARY KEY (`tab_id`,`module_id`), KEY `fk_tabs_has_modules_tabs` (`tab_id`), KEY `fk_tabs_has_modules_modules` (`module_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; -- -------------------------------------------------------- -- -- Table structure for table `users` -- CREATE TABLE `users` ( `id` bigint(20) unsigned NOT NULL auto_increment, `login` varchar(60) NOT NULL, `password` varchar(64) NOT NULL, `email` varchar(100) NOT NULL, `name` varchar(250) default NULL, `user_level` bigint(20) unsigned NOT NULL, PRIMARY KEY (`id`), KEY `fk_users_user_levels` (`user_level`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=4 ; -- -------------------------------------------------------- -- -- Table structure for table `users_has_tabs` -- CREATE TABLE `users_has_tabs` ( `user_id` bigint(20) unsigned NOT NULL, `tab_id` bigint(20) unsigned NOT NULL, `order` smallint(2) NOT NULL, `columns_width` varchar(255) default NULL, PRIMARY KEY (`user_id`,`tab_id`), KEY `fk_users_has_tabs_users` (`user_id`), KEY `fk_users_has_tabs_tabs` (`tab_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; -- -------------------------------------------------------- -- -- Table structure for table `user_levels` -- CREATE TABLE `user_levels` ( `id` bigint(20) unsigned NOT NULL auto_increment, `level` smallint(2) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=3 ; -- -------------------------------------------------------- -- -- Table structure for table `user_meta` -- CREATE TABLE `user_meta` ( `id` bigint(20) unsigned NOT NULL auto_increment, `user_id` bigint(20) unsigned default NULL, `key` varchar(150) NOT NULL, `value` longtext NOT NULL, PRIMARY KEY (`id`), KEY `fk_user_meta_users` (`user_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=4 ; -- -- Constraints for dumped tables -- -- -- Constraints for table `modules_data` -- ALTER TABLE `modules_data` ADD CONSTRAINT `fk_modules_data_modules` FOREIGN KEY (`module_id`) REFERENCES `modules` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION; -- -- Constraints for table `modules_position` -- ALTER TABLE `modules_position` ADD CONSTRAINT `fk_modules_order_modules` FOREIGN KEY (`module_id`) REFERENCES `modules` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION, ADD CONSTRAINT `fk_modules_order_tabs` FOREIGN KEY (`tab_id`) REFERENCES `tabs` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION, ADD CONSTRAINT `fk_modules_order_users` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION; -- -- Constraints for table `users` -- ALTER TABLE `users` ADD CONSTRAINT `fk_users_user_levels` FOREIGN KEY (`user_level`) REFERENCES `user_levels` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION; -- -- Constraints for table `user_meta` -- ALTER TABLE `user_meta` ADD CONSTRAINT `fk_user_meta_users` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE ON UPDATE NO ACTION; INSERT INTO `user_levels` VALUES(1, 10); INSERT INTO `user_levels` VALUES(2, 1); INSERT INTO `users` VALUES(1, 'admin', 'password', '[email protected]', NULL, 1); INSERT INTO `user_meta` VALUES (NULL, 1, 'last_tab', 1); In some environments i get this error: SQLSTATE[HY000]: General error: 1005 Can't create table 'dms.databases' (errno: 150) I tried everything that I could find on Google but nothing works. The strange part is that if I run this query in PhpMyAdmin he creates my database, without any error.

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  • The table/view 'TABLE1' does not have a primary key defined and no valid primary key could be inferr

    - by Nickson
    I get the following error message The table/view 'TABLE1' does not have a primary key defined and no valid primary key could be inferred. This table/view has been excluded. To use the entity you will need to review your schema, add the correct keys and uncomment it when I try to add a view to an Entity Data Model. For testing, I have created a very simple view and I still get the error. below is the view definition SELECT DISTINCT TOP (100) PERCENT MIN(id) AS Expr4, MIN(EmpNo) AS Expr1, MIN(Name) AS Expr2, MIN(Category) AS Expr3 FROM dbo.MYView1 GROUP BY id does any one know of a simple work around. I have looked at this thread http://stackoverflow.com/questions/745341/can-ms-sql-views-have-primary-and-foriegn-keys but in my scenario, what is recommended is not applicable. If I could only have the view added to the Model.

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  • Entity Framework - An object with the same key already exists in the ObjectStateManager

    - by Justin
    Hey all, I'm trying to update a detached entity in .NET 4 EF: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Save(Developer developer) { developer.UpdateDate = DateTime.Now; if (developer.DeveloperID == 0) {//inserting new developer. DataContext.DeveloperData.Insert(developer); } else {//attaching existing developer. DataContext.DeveloperData.Attach(developer); } //save changes. DataContext.SaveChanges(); //redirect to developer list. return RedirectToAction("Index"); } public static void Attach(Developer developer) { var d = new Developer { DeveloperID = developer.DeveloperID }; db.Developers.Attach(d); db.Developers.ApplyCurrentValues(developer); } However, this gives the following error: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key. Anyone know what I'm missing? Thanks, Justin

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  • Error adding certificate to cacerts. Unknown key spec

    - by Alvaro Villanueva
    I am using jdk 1.6 in Windows. I have a .der file (DER Encoded X509 Certificate) that will like to add to my cacerts file... so I tried the following: keytool -import -keystore "C:\Program Files\Java\jdk1.6.0_27\jre\lib\security\cacerts" -trustcacerts -alias openldap -file "C:\cacert.der" I got the following error: java.security.cert.CertificateParsingException: java.io.IOException: subject key, java.security.spec.InvalidKeySpecException: Unknown key spec At first, I thoght it was a problemen with the der certificate, but then doing the following I got exactly the same error: keytool -list -keystore "C:\Program Files\Java\jdk1.6.0_27\jre\lib\security\cacerts" Any ideas why is this problem appearing? I have not found anything in the Web. Thanks in advance.

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  • Spring JdbcTemplate - Insert blob and return generated key

    - by itsadok
    From the Spring JDBC documentation, I know how to insert a blob using JdbcTemplate final File blobIn = new File("spring2004.jpg"); final InputStream blobIs = new FileInputStream(blobIn); jdbcTemplate.execute( "INSERT INTO lob_table (id, a_blob) VALUES (?, ?)", new AbstractLobCreatingPreparedStatementCallback(lobhandler) { protected void setValues(PreparedStatement ps, LobCreator lobCreator) throws SQLException { ps.setLong(1, 1L); lobCreator.setBlobAsBinaryStream(ps, 2, blobIs, (int)blobIn.length()); } } ); blobIs.close(); And also how to retrieve the generated key of a newly inserted row: KeyHolder keyHolder = new GeneratedKeyHolder(); jdbcTemplate.update( new PreparedStatementCreator() { public PreparedStatement createPreparedStatement(Connection connection) throws SQLException { PreparedStatement ps = connection.prepareStatement(INSERT_SQL, new String[] {"id"}); ps.setString(1, name); return ps; } }, keyHolder); // keyHolder.getKey() now contains the generated key Is there a way I could combine the two?

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  • ASP.NET MVC model binding foreign key relationship

    - by Rory Fitzpatrick
    Is it possible to bind a foreign key relationship on my model to a form input? Say I have a one-to-many relationship between Car and Manufacturer. I want to have a form for updating Car that includes a select input for setting Manufacturer. I was hoping to be able to do this using the built-in model binding, but I'm starting to think I'll have to do it myself. My action method signature looks like this: public JsonResult Save(int id, [Bind(Include="Name, Description, Manufacturer")]Car car) The form posts the values Name, Description and Manufacturer, where Manufacturer is a primary key of type int. Name and Description get set properly, but not Manufacturer, which makes sense since the model binder has no idea what the PK field is. Does that mean I would have to write a custom IModelBinder that it aware of this? I'm not sure how that would work since my data access repositories are loaded through an IoC container on each Controller constructor.

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  • C#: Accessing a Dictionary.Keys Key through a numeric index

    - by Michael Stum
    I'm using a Dictionary<string, int> where the int is a count of the key. Now, I need to access the last-inserted Key inside the Dictionary, but i do not know the name of it. The obvious attempt: int LastCount = mydict[mydict.keys[mydict.keys.Count]]; does not work, because Dictionary.Keys does not implement a []-indexer. I just wonder if there is any similar class? I thought about using a Stack, but that only stores a string. I could now create my own struct and then use a Stack<MyStruct>, but I wonder if there is another alternative, essentially a Dictionary that implements an []-indexer on the Keys?

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  • Serializing a list of Key/Value pairs to XML

    - by Slauma
    I have a list of key/value pairs I'd like to store in and retrieve from a XML file. So this task is similar as described here. I am trying to follow the advice in the marked answer (using a KeyValuePair and a XmlSerializer) but I don't get it working. What I have so far is a "Settings" class ... public class Settings { public int simpleValue; public List<KeyValuePair<string, int>> list; } ... an instance of this class ... Settings aSettings = new Settings(); aSettings.simpleValue = 2; aSettings.list = new List<KeyValuePair<string, int>>(); aSettings.list.Add(new KeyValuePair<string, int>("m1", 1)); aSettings.list.Add(new KeyValuePair<string, int>("m2", 2)); ... and the following code to write that instance to a XML file: XmlSerializer serializer = new XmlSerializer(typeof(Settings)); TextWriter writer = new StreamWriter("c:\\testfile.xml"); serializer.Serialize(writer, aSettings); writer.Close(); The resulting file is: <?xml version="1.0" encoding="utf-8"?> <Settings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <simpleValue>2</simpleValue> <list> <KeyValuePairOfStringInt32 /> <KeyValuePairOfStringInt32 /> </list> </Settings> So neither key nor value of the pairs in my list are stored though the number of elements is correct. Obviously I am doing something basically wrong. My questions are: How can I store the key/value pairs of the list in the file? How can I change the default generated name "KeyValuePairOfStringInt32" of the elements in the list to some other name like "listElement" I'd like to have?

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  • Cross-platform embedded database/key-value store for C#

    - by Arne Claassen
    I'm looking for a fast, embeddable key/value store with cursor semantics over key collections (or a simple embeddable DB) that I can use in .NET and mono. Need it to be open-source, would prefer an MIT or Apache style license over a GPL license. Not opposed to a library that needs bindings to be written, as long as binaries are available for both windows and linux. Options considered: SQLite - has bindings and native implementation, but single-threaded and not all that fast Embedded InnoDB - no .NET bindings i can find and it's GPLv2 Berkley DB - no .NET bindings i can find Tokyo Cabinet - no .NET bindings i can find and problematic to build on windows MadCow Memory-mapped data structures - GPLv2 Is there an option better than the above that i'm missing, or bindings for the above i don't know about?

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