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Articles indexed in December 2010

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  • Convert UCS-2 characters to UTF-8 Using C#

    - by quanticle
    I'm pulling some internationalized text from a MS SQL Server 2005 database. As per the defaults for that DB, the characters are stored as UCS-2. However, I need to output the data in UTF-8 format, as I'm sending it out over the web. Currently, I have the following code to convert: SqlString dbString = resultReader.GetSqlString(0); byte[] dbBytes = dbString.GetUnicodeBytes(); byte[] utf8Bytes = System.Text.Encoding.Convert(System.Text.Encoding.Unicode, System.Text.Encoding.UTF8, dbBytes); System.Text.UTF8Encoding encoder = new System.Text.UTF8Encoding(); string outputString = encoder.GetString(utf8Bytes); However, when I examine the output in the browser, it appears to be garbage, no matter what I set the encoding to. What am I missing? EDIT: In response to the answers below, the reason I thought I had to perform a conversion is because I can output literal multibyte strings just fine. For example: OutputControl.Text = "????????????????????????????????????????????????????????????????"; works. Here, OutputControl is an ASP.Net Literal. However, OutputControl.Text = outputString; //Output from above snippet results in mangled output as described above. My hypothesis was that the database's output was somehow getting mangled by ASP.Net. If that's not the case, then what are some other possibilities?

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  • Will an IO blocked process show 100% CPU utilization in 'top' output?

    - by Alex Stoddard
    I have an analysis that can be parallelized over a different number of processes. It is expected that things will be both IO and CPU intensive (very high throughput short-read DNA alignment if anyone is curious.) The system running this is a 48 core linux server. The question is how to determine the optimum number of processes such that total throughput is maximized. At some point the processes will presumably become IO bound such that adding more processes will be of no benefit and possibly detrimental. Can I tell from standard system monitoring tools when that point has been reached? Would the output of top (or maybe a different tool) enable me to distinguish between a IO bound and CPU bound process? I am suspicious that a process blocked on IO might still show 100% CPU utilization.

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  • MVC 2 View Layout CSS Control Layout

    - by Cory Mathewson
    I'm new to a lot of what I'm trying to do with the development of a new MVC2 web application so this is a beginner question. I need to understand my options for control and content layout on a web page. I’m using MVC2 so I’m using Controllers, Views, ViewModels, and View Templates. What I need to spin up on…fast…is control the granular layout of controls and content on any particular view. Below I’ve pasted two examples of auto generated templates that illustrate my challenge. I see that layout is controlled by CSS in my Site.css document. In the first example I get a sequential flow of DisplayLabel and DisplayField. I prefer the adjacent layout of DisplayLabel on the same line as DisplayField produced from example 2. However, example 2 is too simple because the formatting is applied to the Label and the Field. I think the correct way to tackle this learning curve is Microsoft Expression but I don’t have personal bandwidth at the moment to tackle Expression. Can anyone point me to a resource that will expose me to lots of examples for CSS formatting? I have lots of syntax questions. For instance, I believe is referencing the Site.css but I can’t find a "display-label" section in Site.css. Example 1 <fieldset> <legend>Fields</legend> <div class="display-label">DocTitle</div> <div class="display-field"><%: Model.DocTitle %></div> <div class="display-label">DocoumentPropertiesID</div> <div class="display-field"><%: Model.DocumentPropertiesID %></div> Example 2 <h2>Title: <%: Model.DocTitle %></h2> <h2>Created: <%: Model.Created %></h2> <h2>Modified: <%: Model.Modified %></h2> <h2>Author: <%: Model.tbl_Author.Name %></h2> <h2>Genre: <%: Model.tbl_DocumentGenre.GenreName %></h2>

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  • SQL Server PIVOT on key-value table

    - by Zenox
    I have a table that has attributes based on a key-value. Example: CREATE TABLE ObjectAttributes ( int objectId, key nvarchar(64), value nvarchar(512) ) When I select from this I get: objectId key value ---------------------------- 1 Key 1 Value 1 1 Key 2 Value 2 I was wondering if I could use the PIVOT syntax to turn this into: objectId Key 1 Key 2 --------------------------- 1 Value 1 Value 2 I know all of my tables will have the same keys. (Unfortunately I cannot easily change the table structure. This is what is leading me to attempt using PIVOTS). The big issue here though is that pivots require an aggression function to be used. Is there a way to avert this? Am I completely wrong attempting this? Or is there a better solution?

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  • Python: Importing a variable inside of a infinite loop

    - by Jack
    I have two modules, a host and a scanner. Both loop indefinitely to communicate with the serial ports. I want to import the variable "bestchannel" from scanner into host but by importing it, the while loop inside scanner runs first and loops forever. I want each module to run separately but be able to send each other data in real time. Is this possible? (outside of scanning ram) Example Code: http://pastebin.com/pxUBaima I want minchannel from scanner to be accessible to host.

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  • retrieving detailed usb midi device information on windows xp

    - by user557353
    The function midiOutGetDevCaps returns a structure MIDIOUTCAPS. I'd need more specific information when querying a usb midi device on windows xp, in particular I'd need the information displayed under "Location" when opening the respective device using the Device Manager. I need this information in order to programmatically distinguish between several MIDI Interfaces connected to a computer. Using midiOutGetDevCaps, I uniformly get "USB Audio Device" for every midi usb interface connected to the computer, so distinguishing between the interfaces is impossible.

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  • How to get timestamp of tick precision in .NET / C#?

    - by Hermann
    Up until now I used DateTime.Now for getting timestamps, but I noticed that if you print DateTime.Now in a loop you will see that it increments in descrete jumps of approx. 15 ms. But for certain scenarios in my application I need to get the most accurate timestamp possible, preferably with tick (=100 ns) precision. Any ideas? Update: Apparently, StopWatch / QueryPerformanceCounter is the way to go, but it can only be used to measure time, so I was thinking about calling DateTime.Now when the application starts up and then just have StopWatch run and then just add the elapsed time from StopWatch to the initial value returned from DateTime.Now. At least that should give me accurate relative timestamps, right? What do you think about that (hack)? NOTE: StopWatch.ElapsedTicks is different from StopWatch.Elapsed.Ticks! I used the former assuming 1 tick = 100 ns, but in this case 1 tick = 1 / StopWatch.Frequency. So to get ticks equivalent to DateTime use StopWatch.Elapsed.Ticks. I just learned this the hard way. NOTE 2: Using the StopWatch approach, I noticed it gets out of sync with the real time. After about 10 hours, it was ahead by 5 seconds. So I guess one would have to resync it every X or so where X could be 1 hour, 30 min, 15 min, etc. I am not sure what the optimal timespan for resyncing would be since every resync will change the offset which can be up to 20 ms.

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  • Using HAML with custom filters

    - by Guard
    Hi everybody. I feel quite excited about HAML and CoffeeScript and am working on tutorial showing how to use them in non-Rails environment. So, haml has easy to use command-line utility haml input.haml output.html. And, what is great, there exist a project (one of many forks: https://github.com/aussiegeek/coffee-haml-filter) aimed at providing custom filter that converts CoffeeScript into JS inside of HAML files. Unfortunately (or am I missing something?) haml doesn't allow specifying custom filters on the command line or with some configuration file. I (not being a Ruby fan or even knowing it enough) managed to solve it (based on some clever suggestion somewhere on SO) with this helper script: haml.rb require 'rubygems' require 'active_support/core_ext/object/blank' require 'haml' require 'haml/filters/coffee' template = ARGV.length > 0 ? File.read(ARGV.shift) : STDIN.read haml_engine = Haml::Engine.new(template) file = ARGV.length > 0 ? File.open(ARGV.shift, 'w') : STDOUT file.write(haml_engine.render) file.close Which is quite straightforward, except of requires in the beginning. Now, the questions are: 1) should I really use it, or is there another way to have on-demand HAML to HTML compilation with custom filters? 2) What about HAML watch mode? It's great and convenient. I can, of course, create a polling script in python that will watch the directory changes and call this .rb script, but it looks like a dirty solution.

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  • How can I pass query string variables with NavigationService.Navigate?

    - by Mike Hildner
    Greetings, Searched for this, but no luck. I'm attempting to pass query string variables (and then retrieve them) in my Silverlight 4 app. First I tried this this.NavigationService.Navigate(new Uri("/LoanProductionRegion?Elvis=Alive&ImHungry=true", UriKind.Relative)); But HtmlPage.Document.QueryString doesn't pick them up because they come after the anchor (the full url looks like http://localhost:1076/Dashboard.SLTestPage.aspx#/LoanProductionRegion?Elvis=Alive&ImHungry=true). I tried to put the vars in front, such as this.NavigationService.Navigate(new Uri("?Elvis=Alive&ImHungry=true/LoanProductionRegion", UriKind.Relative)); this.NavigationService.Navigate(new Uri("/?Elvis=Alive&ImHungry=true/LoanProductionRegion", UriKind.Relative)); But both result in a "Page not found" error. Anyone know how to achieve what I'm after?

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  • Absolute positioned div not hidden.

    - by Cristy
    I have this <div id="container"> <div id="div1"></div> <div> Now, let's assume that: the "container" has a width of 300px the "container" has overflow: hidden; the "div1" has a width of 1000px; the "div1" is absolute positioned, top:0px,left:0px; The problem: The "div1" is not hidden, it overflows the "container" but it's still showing :(. If I simply remove the "position:absolute" it will work. How can I hide the overflow of "div1" ?

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  • Retrieve E-mail from server (pop3) by date for filtering on subject or body in C#

    - by Josh
    I have a piece of monitoring software I am writing which needs to retrieve e-mails sent to an address for a certain day so that I can filter them by a regex in the subject or body. I don't need to retrieve the entire message, only the subject and body for all messages on a given day so that I can evaluate them with a regular expression for a token. I looked at EAGetMail as a solution, but their implementation doesn't do what I need to to do. I can only get all information on mail, which only has the size and index. I would need it by subject, but even then I don't want to get everything in inbox. If I went with this solution I have to get all mail, and then retrieve each mail message individually to evaluate the subject and body. This is not ideal. I also looked at OpenPop.Net, but it too does not have a targeted retrieval for today's messages only. Can I even do what I want without looping through every single email on the server until I find a match? What is the best way to accomplish what I am trying to do? Am I going to have to build a custom web request to get the data I want? Also, I looked at Chilkat, but I am looking for a free solution, even if it means building the http request myself.

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  • Faster Matrix Multiplication in C#

    - by Kyle Lahnakoski
    I have as small c# project that involves matrices. I am processing large amounts of data by splitting it into n-length chunks, treating the chucks as vectors, and multiplying by a Vandermonde** matrix. The problem is, depending on the conditions, the size of the chucks and corresponding Vandermonde** matrix can vary. I have a general solution which is easy to read, but way too slow: public byte[] addBlockRedundancy(byte[] data) { if (data.Length!=numGood) D.error("Expecting data to be just "+numGood+" bytes long"); aMatrix d=aMatrix.newColumnMatrix(this.mod, data); var r=vandermonde.multiplyBy(d); return r.ToByteArray(); }//method This can process about 1/4 megabytes per second on my i5 U470 @ 1.33GHz. I can make this faster by manually inlining the matrix multiplication: int o=0; int d=0; for (d=0; d<data.Length-numGood; d+=numGood) { for (int r=0; r<numGood+numRedundant; r++) { Byte value=0; for (int c=0; c<numGood; c++) { value=mod.Add(value, mod.Multiply(vandermonde.get(r, c), data[d+c])); }//for output[r][o]=value; }//for o++; }//for This can process about 1 meg a second. (Please note the "mod" is performing operations over GF(2^8) modulo my favorite irreducible polynomial.) I know this can get a lot faster: After all, the Vandermonde** matrix is mostly zeros. I should be able to make a routine, or find a routine, that can take my matrix and return a optimized method which will effectively multiply vectors by the given matrix, but faster. Then, when I give this routine a 5x5 Vandermonde matrix (the identity matrix), there is simply no arithmetic to perform, and the original data is just copied. ** Please note: What I use the term "Vandermonde", I actually mean an Identity matrix with some number of rows from the Vandermonde matrix appended (see comments). This matrix is wonderful because of all the zeros, and because if you remove enough rows (of your choosing) to make it square, it is an invertible matrix. And, of course, I would like to use this same routine to convert any one of those inverted matrices into an optimized series of instructions. How can I make this matrix multiplication faster? Thanks! (edited to correct my mistake with Vandermonde matrix)

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  • Hibernate not Loading a class

    - by Noor
    Hi, I have a class Auction that contains a Class Item and Users but when I am getting the class, the class item and Users are not being loaded. Auction Class Mapping File: <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- Generated Dec 28, 2010 9:14:12 PM by Hibernate Tools 3.4.0.Beta1 --> <hibernate-mapping> <class name="com.BiddingSystem.Models.Auction" table="AUCTION"> <id name="AuctionId" type="long"> <column name="AUCTIONID" /> <generator class="native" /> </id> <property name="StartTime" type="java.util.Date"> <column name="STARTTIME" /> </property> <property name="EndTime" type="java.util.Date"> <column name="ENDTIME" /> </property> <property name="StartingBid" type="long"> <column name="STARTINGBID" /> </property> <property name="MinIncrement" type="long"> <column name="MININCREMENT" /> </property> <many-to-one name="CurrentItem" class="com.BiddingSystem.Models.Item" fetch="join" cascade="all"> <column name="ItemId" /> </many-to-one> <property name="AuctionStatus" type="java.lang.String"> <column name="AUCTIONSTATUS" /> </property> <property name="BestBid" type="long"> <column name="BESTBID" /> </property> <many-to-one name="User" class="com.BiddingSystem.Models.Users" fetch="join"> <column name="UserId" /> </many-to-one> </class> </hibernate-mapping> When I am doing this: Query query=session.createQuery("from Auction where UserId="+UserId); List <Auction> AllAuctions= new LinkedList<Auction>(query.list()); The Users and Item are null

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  • patterns in case statement in bash scripting

    - by Ramiro Rela
    The man says that case statements use "filename expansion pattern matching". I usually want to have short names for some parameters, so I go: case $1 in req|reqs|requirements) TASK="Functional Requirements";; met|meet|meetings) TASK="Meetings with the client";; esac logTimeSpentIn "$TASK" I tried patterns like "req*" or "me{e,}t" which I understand would expand correctly to match those values in the context of filename expansion, but it doesn't work. Thanks.

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  • Memcached in a trusted shared environment?

    - by John Kary
    We are a university IT organization that hosts all of the university's websites on several shared servers on our server room floor. We have several VMs, each running its own instance of Apache as a web server for each respective server. If we were going to setup a memcached server, is it feasible to use it as a shared instance? If shared by several servers, or even multiple web apps running on the same server, what's the best way to keep each app's cache stores separate? Prefix the key? Would each VM require its own instance of memcached, or could we setup 1 memcached server and allow our multiple VMs to read/write to it?

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  • Adventures in Lab Management Configuration: CMMI Edition Part 1 of 3

    - by Enrique Lima
    I remember at one point someone telling me how close Migrate was to Migraine. This was a process that included an environment from TFS 2008 to TFS 2010, needed to be migrated too as far as the process template goes.  Here we are talking about CMMI v4.2 to CMMI v5.0.  Now, the process to migrate the TFS Infrastructure is one thing, migrating the Process Template is a different deal, not hard … just involved. Followed a combination of steps that came from a blog post as the main guidance and then MSDN (as suggested on the guidance post) to complement some tasks and steps. Again, the focus I have here is CMMI. The high level steps taken to enable the TFS 2008 CMMI v4.2 migrated to TFS 2010 Process Template are: 1)  Backup the Collection, Configuration and Warehouse Databases. 2)  Downloaded the Process Template using Visual Studio 2010. 3) Exported, modified and imported Bug Type Definition 4) Exported, modified and imported Scenario or Requirement Type Definition. 5) Created and imported bug field mappings. Now, we can attempt to connect using Test Manager, and you should be able to get this going. After that was done, it was time to enroll VMs that already existed in the environment.  This was a bit more challenging, but in the end it was a matter of just analyzing the changes that had been made to had a temporary work around from the time we migrated to the time we converted the Work Items and such and added fields to enable communication between the project and the Test and Lab Manager component. There are 2 more parts to this post, the second will describe the detailed steps taken to complete the Process Template update and the third will talk about the gotchas and fixes for the Lab Management portion.

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  • Why I can't find mod_dav_svn 1.6 in rpmforge?

    - by Vincenzo
    This is what I'm doing: # yum --enablerepo=rpmforge list mod_dav_svn Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirrors.adams.net * base: mirror.sanctuaryhost.com * extras: mirror.sanctuaryhost.com * rpmforge: fr2.rpmfind.net * updates: mirror.steadfast.net Available Packages mod_dav_svn.x86_64 1.4.2-4.el5_3.1 base Why 1.4.2? Where is 1.6+?

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  • Can't find my.cnf on my VPS

    - by dan
    Ok i am a total noob when it comes to servers (but eager to learn). I am renting a VPS so i can host a magento store. The VPS is using Centos5 and DirectAdmin and XEN virtualization. I've read a bit about how to optimize magento and one suggestion is to edit 'my.cnf'. However i can't find this file anywhere from within DirectAdmin. I also can't connect to the VPS via console as my host has a console access via their website but it won't let me enter my root password it just hangs...(how do people normally connected to their linux VPS?) Please help? ThankYou.

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  • Remote connection issue with Sql Server 2005 with SMS and Services but not IIS

    - by Mallioch
    Here is the situation: I have a Server 2008 box that is trying to connect to a Sql Server 2005 instance. Connections from websites running in the context of IIS work fine to the Sql Server machine using Sql Server authentication. Rockin'. However, using the same connection string, I cannot get a windows service on the same box to communicate with the Sql Server. Nor can I get management studio to connect from the same box. IIS great, other options no so much. For grins I have tried monkeying with the user accounts in the IIS app pools to match that of the service to get the sites to break and that hasn't worked, so it doesn't appear to be a user account issue. Since this is happening with two different programs and not with IIS, I'm assuming there is something shut down on the Sql Server that needs to allow non-IIS connecting things to communicate, but I have no idea what that would be. Any help would be appreciated.

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  • Preprocess outgoing email bodies with a linux smtp server/proxy?

    - by jdc0589
    I have an smtp server running locally on my server, and need to edit the contents of email bodies before they actually get sent out. I have tried using EmailRelay to proxy my smtp server with the --filter option to specify a filter/editing executable, but am getting some odd behavior. Currently, I specify an executable shell script as the filter program and all it is supposed to do is append some text to a log file and return 0 so I know it actually got called. The weird thing is the email gets sent but nothing shows up in my log file like it should (but it does when I run the script manualy). If I remove the 'exit 0' statement, the email does not send like I would expect. Are there any other options/suggestions?

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  • Need ability to set configuration options using single method which will work across multiple server configurations.

    - by JMC Creative
    I'm trying to set post_max_size and upload_max_filesize in a specific directory for a web application I'm building. I've tried the following in a .htaccess file in the script directory. (upload.php is the script that needs the special configuration) <Files upload.php> php_value upload_max_filesize 9998M php_value post_max_size 9999M </Files> That doesn't work at all. I've tried it without the scriptname specificity, where the only thing in the .htaccess file is: php_value upload_max_filesize 9998M php_value post_max_size 9999M This works on my pc-based xampp server, but throws a "500 Misconfiguration Error" on my production server. I've tried also creating a php.ini file in the directory with: post_max_size = 9999M upload_max_filesize = 9998M But this also doesn't always work. And lastly using the following in the php script doesn't work either, supposedly because the settings have already been compiled by the time the parser reaches the line (?): <?php ini_set('post_max_size','9999M'); ini_set('upload_max_filesize','9998M'); ?>

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  • Limiting network throughput of an already launched process ? (Linux/FreeBSD)

    - by jbdenis
    Hello everybody, is there any utility to limit the network throughput of a process after it has been launched ? Simple example: you note that a user takes all your upload bandwidth using scp and you'd like to limit the rate or decrease the priority of the transfer. I guess i could use a combination of iptables/tc or pf to achieve that, but i was wondering if there is a "one-shot" tool available (like tickle with a --pid option ^^) ? Regards, Jean-Baptiste

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  • External WiFi Adapter for Eee PC 1000?

    - by Peter M
    I have an original Eee PC 1000 running the stock Xandros. I have run into problems where the internal WiFi card does not seem to have enough sensitivity to connect to a lot of access points. Although the computer will report APs in the area, unless the signal strength is over 80% (as reported by the Wireless networks application) I cannot seem get a connection. So is there a recommended USB WiFi adapter that is known to work with the Eee PC/Xandros system or in general with a Debian based system?

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  • Partition problem tyring to install window 7 starter

    - by ant2009
    Hello HP Mini 210 I am trying to install windows starter 7. Currently I have installed fedora 14 xfce. And I have allocated 24 GB NTFS for hard disk for the windows partition. My current partitions are as follows: /dev/sda2 97G 4.9G 91G 6% / tmpfs 494M 92K 494M 1% /dev/shm /dev/sda1 485M 68M 392M 15% /boot /dev/sda5 169G 26G 135G 16% /home I have created a boot USD to install windows starter 7. When the computer boots into the windows setup and I selected the partition I want to install windows on. I get the following message: "Setup was unable to create a new system partition or locate an existing system partition." This is setup displaying all my partitions: Disk 0 Partition 1 500MB 0 Primary Disk 0 Partition 2 97.7GB 0 Primary Disk 0 Partition 3 4GB 0 Primary Disk 0 Partition 4 171.3GB 0 Logical Disk 0 Partition 5 24.6GB 24.5 Logical <-- Trying install on this partition NTFS I have also tried to delete the partition in setup and create a new one. And also tried to format the partition. However, I still get the same error message. Many thanks for any advice,

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  • How to install IE9 when KB2120976 is not applicable to my Windows 7 x86 Ultimate edition?

    - by CVertex
    I'm trying to install IE9, visit http://beautyoftheweb.com, download it and then says it's downloading prereqs. After a minute, the installer says there's a problem and directs me to Prerequisites for installing Internet Explorer 9 Beta I click on the x86 installers one by one... most say "already installed".. But http://support.microsoft.com/kb/2120976/ says "The update is not applicable to your computer". Lame. So I try the IE9 install and the go through the whole process again with the same result. I discovered there's an IE9 install log at C:\Windows\IE9_main.log which logs the install process and reports an Error for 2120976 00:06.630: ERROR: Error installing prerequisite file (C:\Users\Vijay\AppData\Local\Temp\IE98036.tmp\KB2120976_x86.msu): 0x80240017 (2149842967) 00:06.677: INFO: PauseOrResumeAUThread: Successfully resumed Automatic Updates. 00:12.090: INFO: Link clicked, opening URL in new window:'http://go.microsoft.com/fwlink/?LinkId=185111' 00:12.106: INFO: Setup exit code: 0x00009C47 (40007) - Required updates are missing from the system.are missing from the system. Any idea why KB2120976 is inapplicable to my LEGAL Windows 7 Ultimate system? Any help is greatly appreciated.

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