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  • PowerShell: New-PSDrive error handling

    - by mazebuhu
    Hello, I have a script where I mount with the command "New-PSDrive" a network drive. Now, since the script is running as a "cronjob" on a server I want to have some error detection. If for any reason the command New-PSDrive fails the script should stop executing and notify that something went wrong. I have the following code: Try { New-PSDrive -Name A -PSProvider FileSystem -Root \\server\share } Catch { ... handle error case ... } ... other code ... For testing reasons I specified a wrong server name and I get the following error "New-PSDrive : Drive root "\wrongserver\share" does not exist or it's not a folder". Which is OK since the server does not exists. But the script does not go into the Catch clause and stop. It happily continues to run and ends up in a mess since no drive is mounted :-) So my question, why? Is there any difference in Exception handling in PowerShell? I should also note that I'm a noob in PowerShell scripting. Bye, Martin

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  • snort with barnyard2 not working on Fedora 12

    - by aHunter
    Has anyone come across this error with barnyard2 and snort? --== Initializing Barnyard2 ==-- Initializing Input Plugins! Initializing Output Plugins! Parsing config file "/etc/snort/barnyard2.conf" Log directory = /var/log/barnyard2 database: compiled support for (mysql) database: configured to use mysql database: schema version = 107 database: host = localhost database: user = test database: database name = snort database: sensor name = localhost:eth0 database: sensor id = 1 database: data encoding = hex database: detail level = full database: ignore_bpf = no database: using the "log" facility --== Initialization Complete ==-- ______ -*> Barnyard2 <*- / ,,_ \ Version 2.1.8 (Build 251) |o" )~| By the SecurixLive.com Team: http://www.securixlive.com/about.php + '''' + (C) Copyright 2008-2010 SecurixLive. Snort by Martin Roesch & The Snort Team: http://www.snort.org/team.html (C) Copyright 1998-2007 Sourcefire Inc., et al. WARNING: Ignoring corrupt/truncated waldofile '/var/log/snort/barnyard.waldo' Opened spool file '/var/log/snort/snort.log.1282004944' ERROR: Unknown record type read: 104 Fatal Error, Quitting.. Snort seems to be working correctly as I have managed to get logs via syslog but when I try to use the barnyard config via Unified2 it is not working. Presumably because of the above error. Thanks in advance.

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  • 4.00gb (3.25gb usable) in Windows 7 x64

    - by dotnetdev
    Hi, I have setup Windows 7 Ultimate x64 on my PC. I have 4gb RAM and my BIOS states the correct amount (4096mb), but I cannot Windows (System Manager) says I have 4.00gb (3.25gb usable). This seems to be a popular issue, and I have looked for an integrated video card (integrated with my chipset) to disable but haven't found anything. What else can be preventing me from seeing all 4gb? When I had Vista 32bit, it would say 3.25gb RAM not 4.00gb (3.25gb usable). I have an x64 CPU and when I brought my RAM, I used a compatibility tool from Crucial (the memory vendor) to test how much memory my PC can support and 4gb was the answer (this was a windows app I think). Chipset is Intel(R) G33/G31/P35/P31 Express Chipset PCI Express In the bios, I looked for an onboard video card (integrated) and there was no such thing, but a couple of other onboard devices. There are also no "Resource Mappings" settings. FURHTER DETAILS: Chipset North Bridge: Intel Bearlake G33 South Bridge: Intel 82801IR ICH9R Maximum Memory Amount 8 GB Graphics Controller Type Intel GMA 3100 (Enabled) I guess the first thing is, how do I disable the graphics controller? EDIT: This thread (http://forums.legitreviews.com/about23417.html) indicates the issue is with memory mapped devices, but someone on this thread says that does not apply to x64. The rest of the comments points to a mobo issue for the guy who started that thread. Thanks

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  • snort analysis of wireshark capture

    - by Ben Voigt
    I'm trying to identify trouble users on our network. ntop identifies high traffic and high connection users, but malware doesn't always need high bandwidth to really mess things up. So I am trying to do offline analysis with snort (don't want to burden the router with inline analysis of 20 Mbps traffic). Apparently snort provides a -r option for this purpose, but I can't get the analysis to run. The analysis system is gentoo, amd64, in case that makes any difference. I've already used oinkmaster to download the latest IDS signatures. But when I try to run snort, I keep getting the following error: % snort -V ,,_ -*> Snort! <*- o" )~ Version 2.9.0.3 IPv6 GRE (Build 98) x86_64-linux '''' By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team Copyright (C) 1998-2010 Sourcefire, Inc., et al. Using libpcap version 1.1.1 Using PCRE version: 8.11 2010-12-10 Using ZLIB version: 1.2.5 %> snort -v -r jan21-for-snort.cap -c /etc/snort/snort.conf -l ~/snortlog/ (snip) 273 out of 1024 flowbits in use. [ Port Based Pattern Matching Memory ] +- [ Aho-Corasick Summary ] ------------------------------------- | Storage Format : Full-Q | Finite Automaton : DFA | Alphabet Size : 256 Chars | Sizeof State : Variable (1,2,4 bytes) | Instances : 314 | 1 byte states : 304 | 2 byte states : 10 | 4 byte states : 0 | Characters : 69371 | States : 58631 | Transitions : 3471623 | State Density : 23.1% | Patterns : 3020 | Match States : 2934 | Memory (MB) : 29.66 | Patterns : 0.36 | Match Lists : 0.77 | DFA | 1 byte states : 1.37 | 2 byte states : 26.59 | 4 byte states : 0.00 +---------------------------------------------------------------- [ Number of patterns truncated to 20 bytes: 563 ] ERROR: Can't find pcap DAQ! Fatal Error, Quitting.. net-libs/daq is installed, but I don't even want to capture traffic, I just want to process the capture file. What configuration options should I be setting/unsetting in order to do offline analysis instead of real-time capture?

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  • Intel Atom overheating in ASUS EEE Box 1501P

    - by Sergey L.
    I have had an ASUS EEE Box 1501P for just a little bit over a year. Of course it breaks 2 months after the warranty runs out. http://www.asus.com/Eee/EeeBox_PC/EeeBox_PC_EB1501P/ I have been using the box as a Home Media Center. Running mostly 24/7 often pausing a video overnight. Since last week the fan started running extremely loud. After some digging I found that the Intel Atom CPU in it is overheating and the built-in sensor is reporting temperatures way over 105°C. This got me worried, so I took the unit apart. Completely vacuumed the heat sink, oiled the fan, but the unit is still showing the same behaviour. After turning it on and just observing the hardware monitor in the BIOS the temperature slowly rises from 40°C to over 95°C in appx 5 min. I am running the newest BIOS and a lightweight Linux OPENELEC OS with XBMC on it. Now I am wondering if it could be a faulty heat sensor in the Atom. Recommended running temperature is up to 85°C, but I have not detected any performance hits when running at the above mentioned 105°C and there seem to be no software faults. How can an Atom with an attached heat sink and a fan running at full capacity even get this hot in the first place at 0 load? Aren't those things designed to generate virtually no heat? Could it be a faulty heat sensor? What shall I try to fix this? I would prefer not to damage the CPU, since it is hard fused into the motherboard and cannot be replaced. I could remove the heat pipe/heat sink, but it is getting hot, so heat is properly transferring from the CPU to the heat pipe, the fan is running at full capacity, is recently oiled and warm air is making it out of the exhaust. Edit: One more note: The North-bridge (or whatever it is called nowadays) is on the same heat pipe.

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  • How can I download a copy of an S3 public data set?

    - by tripleee
    i was naively assuming I could do something like s3cmd sync s3://snap-d203feb5 /var/tmp/copy but I seem to have the wrong idea of how to go about this. I cannot even get a simple thing to work; vnix$ s3cmd ls s3://snap-d203feb5 Bucket 'snap-d203feb5': ERROR: Bucket 'snap-d203feb5' does not exist I guess the identifier I have is not for a "bucket" but for a "public data set". How do I go from one to the other? Do I have to start up an EC2 instance and create a bucket for this? How? The instructions at http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/using-public-data-sets.html seem to assume I want to use the data in an EC2 instance, but in this case, I'd just like to browse a bit, at least for a start. By the by, copy/pasting the "US Snapshot ID" causes a nasty traceback from Python; they publish the ID with a weird Unicode (I presume) dash which cannot directly be copy/pasted. Is there a mistake when I copy it? And what's the significance of "US" in there? Can't I use the data outside North America??

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  • Suggestions on the best home server rack cabinet

    - by allentown
    I have a lot of gear in a colocation facility right now. Some of it is going to come home with me now. I do not know anything about the "rack mount" side of the industry. I lease a rack, and I put my stuff in it. I have a few 1U boxes, a few 2U boxes, and a few 4U boxes. 1U switch. One is a new Xserve, which means it is deep. I think I can get by with around 12U to 18U. I want to keep it as small as possible, since I do not have a lot of spare space at my home. I will not be able to bolt to the wall, floor etc, so it should not be tall. This is something I would love to more or less just be a box that sits on the floor but gives me the ability to mount nicely, do nice cable management etc. Are the "post" style racks junk? I am liking the open space, and the no limitations on depth of something like this: http://www.rackmountsolutions.net/images/products/Martin-relay-rack.jpg However, that thing is way too tall, and probably way too expensive. I am looking to be around $300.00 or less. More if I have to, though I would prefer not to. These look near perfect: (See comment for this link, the system will not let me post a second url) but I am worried the Xserve will not fit in it. If anyone has any good links, or website recommendations of good past experience, I would appreciate it. I am almost considering that I may be able to build something with random scraps of stuff at Home Depot as well.

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  • Looking for comprehensive computer monitoring software

    - by cornjuliox
    Summer in this country is insanely hot. So hot in fact, that I think we just lost a machine due to overheating (last recorded CPU/GPU temp was close to 100 C, now it wont start and lets out a long series of short beeps on power up), but that's not my concern here. Since heat is such a problem for me, I use several different pieces of software to monitor temperatures in my machine. I use MSI Afterburner to monitor GPU temp, control GPU fan speed and for some light overclocking, and then I use Speccy and SpeedFan to monitor the rest of the system, CPU temp and everything. The setup works fine for now, but I want to consolidate all this into one program so I'm not juggling several windows at once. Is there any program out there that will let me monitor the following from a single window: CPU Temp and Fan Speed CPU clock GPU Temp and Fan Speed GPU clock, both core and memory Additionally, mobo temp (Speccy lists both CPU and Motherboard temp, I assume that the latter is referring to North and Southbridge temperatures. I'm also looking for the ability to chart these data points on a graph over time, basically to see just how high the temperatures spike under load and for general analysis. It'd be nice if it could handle overclocking of both CPU and GPU in real time too. Any suggestions? Edit: I forgot to mention that I'm on Windows 7, 64-bit

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  • How to limit SMTP delivery to hourly batches

    - by Jeremy W
    Moved over from StackOverflow. Sorry if you saw it there first In an effort to keep us from being labeled spammers by major ISPs (in addition to SPF records, privacy policies, CANSPAM compliance and the like) - I wanted to limit the amount of mail we send out an hour. Is this possible in W2K3 SMTP server? I was looking at outbound connection properties in the SMTP virtual server config screens...It's just not that clear if tinkering with those settings are going to do what I want. In a nutshell, I'd love mail being sent by this server to queue up and send for example, 5,000 messages every 10 minutes or so. Mail is being sent via ASP.Net. Also, I wouldn't be sending 1 million a day. Probably 30,000 tops - and doing that only a few times a month. I'm just trying to avoid a tidal wave of 30k going out in 1 minute and setting off every network spam monitoring alarm in North America. I know I could do it with a combination console app / scheduled job. My question was if there was an easier way to accomplish this with the Virtual SMTP Server settings on Win2k3 Is this possible?

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  • Looking for suggestions for hosting Windows 2000 Server in the cloud / VPS / etc?

    - by JohnyD
    I have a Windows 2000 Server, currently virtualized in Hyper-V, that I would like to get running off-site as a backup (cloud, VPS, etc). You can't virtualize in EC2 and I'm fairly certain there are no Server 2000 AMI's floating about (correct me if I'm wrong!). If anyone has a recommendation on how I can get a virtualized Windows 2000 Server running in a secure, remote environment I would be grateful. As far as locations go I'd be interested in both North America as well as Australia and Europe. In a nutshell, we're ploughing our way out of a legacy codebase and this server is the last that remains of the legacy apps. However, it is still very much used by our clients. Everything is backed up each night (data, images, etc) to tape which is then taken offsite. However, in the event of a fire I would love to have a backup legacy server to point DNS records to. So while I am rebuilding from the ashes our services would already be available. It would save a lot of time and make my managers all the more happy (and that's what it's all about, riighhtt? :D) Thank you all for your suggestions. Please let me know if I've left out any important information. Additional info: - the legacy codebase does not function properly in Server 2003

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  • Windows based development environment: HyperV, VMWare, or VirtualBox on development machine?

    - by bleepzter
    I am a software engineer with a little bit of an informal "support" functionality... I am trying to figure out what is the best possible approach to employing virtualization technologies into our development process. Since the code we develop is server-centric, testing it often requires a VM with specific software requirements. I used to use VM Ware player (free version) to run my VM's until both of my laptops started exhibiting issues with corrupted windows 7 services and dying hard drives. All leads pointed to VMWare, which by the way seems to be a solid product if you pay for the Workstation edition ($300). On a side note, I have always been a fan of the Windows Server product line. I think it makes for one of the best development environments out there - it is highly scalable, highly reliable, and very efficient. So to be fair I replaced the drives of the laptops and installed Windows Server 2008R2, VS2010 Ultimate SP1, SQL Server 2008R2, TFS Server 2010 and all other tools and API's needed do do my work properly. So now I am stuck with a bunch of VMWare VMs. I don't want to repeat of what happened before, and I certainly don't want to bog down my machine with an inefficient hypervisor or services that are not needed. Futhermore the VMDK hard-disk format used by VMWare is not compatible with the VHD format of Hyper V. It is my understanding that converting from one format to the other can only happen by Microsoft System Center Virtual Machine which I have downloaded from MSDN and ready to install. I guess the question at this point is: Does SCVM run as another service in Windows? Is it a memory hog? What is a better virtualization technology - Hyper-V or Virtual Box in terms of efficiency ease of use and most importantly - memory footprint? (Keep in mind the development environment already has a ton of services running such as TFS Server, SQL Server, IIS, etc...) How would you advise to proceed at this point so that the VMs are still used in the test process? Thanks Martin

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  • upload process times out for different time zones

    - by shilezi
    I have an inhouse(NY) app that cients can upload files to. Usually uploads go pretty quickly for most clients but this particularly cient in the UK always have problems with uploads. not sure if they get any errors but since we log all exceptions, we see this...Error: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.Net.WebException: The operation has timed out at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at ... This shouldn't even be an issue because since we noticed they have had this issue before so we bumped up these to maxRequestLength="2097151" executionTimeout="14400". Further investigating this error, i read that it could be a thread timeout since the default is 20minute. A worker process with process id of serving application pool was shutdown due to inactivity. Application Pool timeout configuration was set to 20 minutes. A new worker process will be started when needed. Problem is I am not entirely sure if that really is the case as all other cients mostly North American, have no issues but then their uploads don't seem to go beyond 80mb and the UK client have done a 700mb upload before that i know of. We have tested 750mb before and the whole process took about 15min for upload and processing. Any help on what the real issue here might be? Thanks.

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  • Web Server slows down (ASP.NET)

    - by mfeingold
    below is a question I posted on stackoverflow . as suggested by Martin Clarke I also post it here. We have a really strange problem. One of the servers in the server farm becomes really slow. We see a number of timeouts in the logs and overall response time is not where it should be (and is on other servers in the farm). What is also strange is that it is not just the web app - Just logging into the server takes up to 1.5 min to show you the desktop. Once you are in, the system is as responsive as ever - unless you try to launch something, i.e. notepad - it takes another minute to launch and after launch it works fine. I checked a number of things - memory utilization is reasonable, CPU is below 15%, windows handles, event logs do not show anything. Recycling the aps.net process does not fix it - it still takes over a minute to log in. Rebooting the server helped, but now it started to slow down again. After a closer look we found out that Windows Temp directory is full of temp files - over 65k files. This is certainly something to take care of. But my question is could it be the root cause of the sluggishness, or there is still something else lurking in the shadows? Edit After more digging I am zeroing in on the issue related to the size of temp directories. This article: (see the original post this thing will not let me include a second link) describes something very similar. It still does not answer the question why the server is still slow even there is no activity.

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  • Im getting fatal errors... can anyone help me edit my program!

    - by user350217
    The errors i am getting are: Error 1 error LNK2019: unresolved external symbol "double __cdecl getDollarAmt(void)" (? getDollarAmt@@YANXZ) referenced in function _main hid.obj Error 2 fatal error LNK1120: 1 unresolved externals this is my program: #include<iostream> #include<cmath> #include<string> using namespace std; double getDollarAmt(); void displayCurrencies(); char getCurrencySelection (float amtExchanged); bool isSelectionValid(char selection); double calcExchangeAmt (float amtExchanged, char selection); void displayResults(double newAmount, float amtExchanged, char selection, char yesNo); const double russianRubles = 31.168; const double northKoreanWon = .385; const double chineseYuan = 6.832; const double canadianDollar = 1.1137; const double cubanPeso = 1.0; const double ethiopianBirr = 9.09; const double egyptianPound = 5.6275; const double tunisianDinar = 1.3585; const double thaiBaht = 34.4; /****** I changed the variables to global variables so you don't have to worry about accidentally setting them to 0 or assigning over a value that you need ********/ float amtEchanged = 0.0; char selection; char yesNo; double newAmount; int main() { float amtExchanged = 0.0; selection = 'a'; yesNo = 'y'; newAmount = 0.0; getDollarAmt (); displayCurrencies(); getCurrencySelection (amtExchanged); isSelectionValid(selection);/**** you only need to use the selection variable ****/ calcExchangeAmt (amtExchanged, selection); displayResults(newAmount, amtExchanged, selection, yesNo); return 0; } double getDollarAmt (float amtExchanged) // promt user for eachange amount and return it to main { float amtExchanged0;//created temporary variable to set amtExchanged to cout<< "Please enter the total dollar amount to exchange: "; cin>> amtExchanged0; amtExchanged = amtExchanged0;//setting amtExchanged to the right value return amtExchanged; } void displayCurrencies() // display list of currencies { cout<<"A Russian Ruble"<<endl <<"B North Korean Won"<<endl <<"C Chinese Yuan"<<endl <<"D Cuban Peso"<<endl <<"E Ethiopian Birr"<<endl <<"F Thai Baht"<<endl <<"G Canadian Dollars"<<endl <<"H Tunisian Dinar"<<endl <<"I Egyptian Pound"<<endl; } char getCurrencySelection (float amtExchanged) // make a selection and return to main { char selection0;//again, created a temporary variable for selection cout<<"Please enter your selection: "; cin>>selection0; selection = selection0;//setting the temporary variable to the actual variable you use /***** we are now going to see if isSelectionValid returns false. if it returns false, that means that their selection was not character A-H. if it is false we keep calling getCurrencySelection *****/ if(isSelectionValid(selection)==false) { cout<<"Sorry, the selection you chose is invalid."<<endl; getCurrencySelection(amtExchanged); } return selection; } bool isSelectionValid(char selection) // this fuction is supposed to be called from getCurrencySelection, the selction // must be sent to isSelectionValid to determine if its valid // if selection is valid send it bac to getCurrencySelection // if it is false then it is returned to getCurrencySelection and prompted to // make another selection until the selection is valid, then it is returned to main. { /**** i'm not sure if this is what you mean, all i am doing is making sure that their selection is A-H *****/ if(selection=='A' || selection=='B' || selection=='C' || selection=='D' || selection=='E' || selection=='F' || selection=='G' || selection=='H' || selection=='I') return true; else return false; } double calcExchangeAmt (float amtExchanged,char selection) // function calculates the amount of money to be exchanged { switch (toupper(selection)) { case 'A': newAmount =(russianRubles) * (amtExchanged); break; case 'B': newAmount = (northKoreanWon) * (amtExchanged); break; case 'C': newAmount = (chineseYuan) * (amtExchanged); break; case 'D': newAmount = (canadianDollar) * (amtExchanged); break; case 'E': newAmount = (cubanPeso) * (amtExchanged); break; case 'F': newAmount = (ethiopianBirr) * (amtExchanged); break; case 'G': newAmount = (egyptianPound) * (amtExchanged); break; case 'H': newAmount = (tunisianDinar) * (amtExchanged); break; case 'I': newAmount = (thaiBaht) * (amtExchanged); break; } return newAmount; } void displayResults(double newAmount, float amtExchanged, char selection, char yesNo) // displays results and asked to repeat. IF they want to repeat it clears the screen and starts over. { switch(toupper(selection)) { case 'A': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Russian Rubles."<<endl<<endl; break; case 'B': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" North Korean Won."<<endl<<endl; break; case 'C': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Chinese Yuan."<<endl<<endl; break; case 'D': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Cuban Pesos."<<endl<<endl; break; case 'E': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Ethiopian Birr."<<endl<<endl; break; case 'F': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Thai Baht."<<endl<<endl; break; case 'G': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Canadian Dollars."<<endl<<endl; break; case 'H': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Tunisian Dinar."<<endl<<endl; break; case 'I': cout<<"$"<<amtExchanged<<" is "<<newAmount<<" Egyptian Pound."<<endl<<endl; break; } cout<<"Do you wish to continue? (Y for Yes / N for No)"; cin>>yesNo; if(yesNo=='y' || yesNo=='Y') { getDollarAmt(); } else { system("cls"); } }

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  • Maze not generating properly. Out of bounds exception. need quick fix

    - by Dan Joseph Porcioncula
    My maze generator seems to have a problem. I am trying to generate something like the maze from http://mazeworks.com/mazegen/mazetut/index.htm . My program displays this http://a1.sphotos.ak.fbcdn.net/hphotos-ak-snc7/s320x320/374060_426350204045347_100000111130260_1880768_1572427285_n.jpg and the error Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1 at Grid.genRand(Grid.java:73) at Grid.main(Grid.java:35) How do I fix my generator program? import java.awt.*; import java.awt.Color; import java.awt.Component; import java.awt.Graphics; import javax.swing.*; import java.util.ArrayList; public class Grid extends Canvas { Cell[][] maze; int size; int pathSize; double width, height; ArrayList<int[]> coordinates = new ArrayList<int[]>(); public Grid(int size, int h, int w) { this.size = size; maze = new Cell[size][size]; for(int i = 0; i<size; i++){ for(int a =0; a<size; a++){ maze[i][a] = new Cell(); } } setPreferredSize(new Dimension(h, w)); } public static void main(String[] args) { JFrame y = new JFrame(); y.setLayout(new BorderLayout()); Grid f = new Grid(25, 400, 400); y.add(f, BorderLayout.CENTER); y.setSize(450, 450); y.setVisible(true); y.setDefaultCloseOperation(y.EXIT_ON_CLOSE); f.genRand(); f.repaint(); } public void push(int[] xy) { coordinates.add(xy); int i = coordinates.size(); coordinates.ensureCapacity(i++); } public int[] pop() { int[] x = coordinates.get((coordinates.size())-1); coordinates.remove((coordinates.size())-1); return x; } public int[] top() { return coordinates.get((coordinates.size())-1); } public void genRand(){ // create a CellStack (LIFO) to hold a list of cell locations [x] // set TotalCells = number of cells in grid int TotalCells = size*size; // choose a cell at random and call it CurrentCell int m = randomInt(size); int n = randomInt(size); Cell curCel = maze[m][n]; // set VisitedCells = 1 int visCel = 1,d=0; int[] q; int h,o = 0,p = 0; // while VisitedCells < TotalCells while( visCel < TotalCells){ // find all neighbors of CurrentCell with all walls intact if(maze[m-1][n].countWalls() == 4){d++;} if(maze[m+1][n].countWalls() == 4){d++;} if(maze[m][n-1].countWalls() == 4){d++;} if(maze[m][n+1].countWalls() == 4){d++;} // if one or more found if(d!=0){ Point[] ls = new Point[4]; ls[0] = new Point(m-1,n); ls[1] = new Point(m+1,n); ls[2] = new Point(m,n-1); ls[3] = new Point(m,n+1); // knock down the wall between it and CurrentCell h = randomInt(3); switch(h){ case 0: o = (int)(ls[0].getX()); p = (int)(ls[0].getY()); curCel.destroyWall(2); maze[o][p].destroyWall(1); break; case 1: o = (int)(ls[1].getX()); p = (int)(ls[1].getY()); curCel.destroyWall(1); maze[o][p].destroyWall(2); break; case 2: o = (int)(ls[2].getX()); p = (int)(ls[2].getY()); curCel.destroyWall(3); maze[o][p].destroyWall(0); break; case 3: o = (int)(ls[3].getX()); p = (int)(ls[3].getY()); curCel.destroyWall(0); maze[o][p].destroyWall(3); break; } // push CurrentCell location on the CellStack push(new int[] {m,n}); // make the new cell CurrentCell m = o; n = p; curCel = maze[m][n]; // add 1 to VisitedCells visCel++; } // else else{ // pop the most recent cell entry off the CellStack q = pop(); m = q[0]; n = q[1]; curCel = maze[m][n]; // make it CurrentCell // endIf } // endWhile } } public int randomInt(int s) { return (int)(s* Math.random());} public void paint(Graphics g) { int k, j; width = getSize().width; height = getSize().height; double htOfRow = height / (size); double wdOfRow = width / (size); //checks verticals - destroys east border of cell for (k = 0; k < size; k++) { for (j = 0; j < size; j++) { if(maze[k][j].checkWall(2)){ g.drawLine((int) (k * wdOfRow), (int) (j * htOfRow), (int) (k * wdOfRow), (int) ((j+1) * htOfRow)); }} } //checks horizontal - destroys north border of cell for (k = 0; k < size; k++) { for (j = 0; j < size; j++) { if(maze[k][j].checkWall(3)){ g.drawLine((int) (k * wdOfRow), (int) (j * htOfRow), (int) ((k+1) * wdOfRow), (int) (j * htOfRow)); }} } } } class Cell { private final static int NORTH = 0; private final static int EAST = 1; private final static int WEST = 2; private final static int SOUTH = 3; private final static int NO = 4; private final static int START = 1; private final static int END = 2; boolean[] wall = new boolean[4]; boolean[] border = new boolean[4]; boolean[] backtrack = new boolean[4]; boolean[] solution = new boolean[4]; private boolean isVisited = false; private int Key = 0; public Cell(){ for(int i=0;i<4;i++){wall[i] = true;} } public int countWalls(){ int i, k =0; for(i=0; i<4; i++) { if (wall[i] == true) {k++;} } return k;} public boolean checkWall(int x){ switch(x){ case 0: return wall[0]; case 1: return wall[1]; case 2: return wall[2]; case 3: return wall[3]; } return true; } public void destroyWall(int x){ switch(x){ case 0: wall[0] = false; break; case 1: wall[1] = false; break; case 2: wall[2] = false; break; case 3: wall[3] = false; break; } } public void setStart(int i){Key = i;} public int getKey(){return Key;} public boolean checkVisit(){return isVisited;} public void visitCell(){isVisited = true;} }

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  • Customer Attribute, not sorting select options

    - by Bosworth99
    Made a module that creates some customer EAV attributes. One of these attributes is a Select, and I'm dropping a bunch of options into their respective tables. Everything lines up and is accessible on both the front end and the back. Last thing before calling this part of things finished is the sort order of the options. They come out all scrambled, instead of the obvious default or alphabetical (seemingly at random... very wierd). I'm on Mage v1.11 (Pro/Enterprise). config.xml <config> <modules> <WACI_CustomerAttr> <version>0.1.0</version> </WACI_CustomerAttr> </modules> <global> <resources> <customerattr_setup> <setup> <module>WACI_CustomerAttr</module> <class>Mage_Customer_Model_Entity_Setup</class> </setup> <connection> <use>core_setup</use> </connection> </customerattr_setup> </resources> <models> <WACI_CustomerAttr> <class>WACI_CustomerAttr_Model</class> </WACI_CustomerAttr> </models> <fieldsets> <customer_account> <agency><create>1</create><update>1</update></agency> <title><create>1</create><update>1</update></title> <phone><create>1</create><update>1</update></phone> <mailing_address><create>1</create><update>1</update></mailing_address> <city><create>1</create><update>1</update></city> <state><create>1</create><update>1</update></state> <zip><create>1</create><update>1</update></zip> <fed_id><create>1</create><update>1</update></fed_id> <ubi><create>1</create><update>1</update></ubi> </customer_account> </fieldsets> </global> </config> mysql4-install-0.1.0.php <?php Mage::log('Installing WACI_CustomerAttr'); echo 'Running Upgrade: '.get_class($this)."\n <br /> \n"; //die ( 'its running' ); $installer = $this; /* @var $installer Mage_Customer_Model_Entity_Setup */ $installer->startSetup(); // bunch of attributes // State $installer->addAttribute('customer','state', array( 'type' => 'varchar', 'group' => 'Default', 'label' => 'State', 'input' => 'select', 'default' => 'Washington', 'source' => 'WACI_CustomerAttr/customer_attribute_data_select', 'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE, 'required' => true, 'visible' => true, 'user_defined' => 1, 'position' => 67 ) ); $attrS = Mage::getSingleton('eav/config')->getAttribute('customer', 'state'); $attrS->addData(array('sort_order'=>67)); $attrS->setData('used_in_forms', array('adminhtml_customer','customer_account_edit','customer_account_create'))->save(); $state_list = array('Alabama','Alaska','Arizona','Arkansas','California','Colorado','Connecticut','Delaware','Florida','Georgia', 'Hawaii','Idaho','Illinois','Indiana','Iowa','Kansas','Kentucky','Louisiana','Maine','Maryland','Massachusetts','Michigan', 'Minnesota','Mississippi','Missouri','Montana','Nebraska','Nevada','New Hampshire','New Jersey','New Mexico','New York', 'North Carolina','North Dakota','Ohio','Oklahoma','Oregon','Pennsylvania','Rhode Island','South Carolina','South Dakota', 'Tennessee','Texas','Utah','Vermont','Virginia','Washington','West Virginia','Wisconsin','Wyoming'); $aOption = array(); $aOption['attribute_id'] = $installer->getAttributeId('customer', 'state'); for($iCount=0;$iCount<sizeof($state_list);$iCount++){ $aOption['value']['option'.$iCount][0] = $state_list[$iCount]; } $installer->addAttributeOption($aOption); // a few more $installer->endSetup(); app/code/local/WACI/CustomerAttr/Model/Customer/Attribute/Data/Select.php <?php class WACI_CustomerAttr_Model_Customer_Attribute_Data_Select extends Mage_Eav_Model_Entity_Attribute_Source_Abstract{ function getAllOptions(){ if (is_null($this->_options)) { $this->_options = Mage::getResourceModel('eav/entity_attribute_option_collection') ->setAttributeFilter($this->getAttribute()->getId()) ->setStoreFilter($this->getAttribute()->getStoreId()) ->setPositionOrder('asc') ->load() ->toOptionArray(); } $options = $this->_options; return $options; } } theme/variation/template/persistent/customer/form/register.phtml <li> <?php $attribute = Mage::getModel('eav/config')->getAttribute('customer','state'); ?> <label for="state" class="<?php if($attribute->getIsRequired() == true){?>required<?php } ?>"><?php if($attribute->getIsRequired() == true){?><em>*</em><?php } ?><?php echo $this->__('State') ?></label> <div class="input-box"> <select name="state" id="state" class="<?php if($attribute->getIsRequired() == true){?>required-entry<?php } ?>"> <?php $options = $attribute->getSource()->getAllOptions(); foreach($options as $option){ ?> <option value='<?php echo $option['value']?>' <?php if($this->getFormData()->getState() == $option['value']){ echo 'selected="selected"';}?>><?php echo $this->__($option['label'])?></option> <?php } ?> </select> </div> </li> All options are getting loaded into table eav_attribute_option just fine (albeit without a sort_order defined), as well as table eav_attribute_option_value. In the adminhtml / customer-manage customers-account information this select is showing up fine (but its delivered automatically by the system). Seems I should be able to set the sort-order on creation of the attributeOptions, or, certainly, define the sort order in the data/select class. But nothing I've tried works. I'd rather not do a front-end hack either... Oh, and how do I set the default value of this select? (Different question, I know, but related). Setting the attributes 'default' = 'washington' seems to do nothing. There seem to be a lot of ways to set up attribute select options like this. Is there a better way that the one I've outlined here? Perhaps I'm messing something up. Cheers

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  • PHP statements, HTML and RSS

    - by poindexter
    Alrighty, I've got another little bit of code that I'm wrestling through. I'm building a conditional sidebar. The goal is to only show blog related stuff when posts in the "blog" category are being viewed. I've got part of it working, but the part where I'm trying to bring in an RSS feed of the category into the sidebar to show as recent posts. It doesn't work, and since I'm a php newb I'm not entirely sure why. Any suggestions or pointers are much appreciated. I'll post the problem section first, and then the entire php file second, so you all can see the context for the section that I'm having issues with. Problem Section: echo '<div class="panel iq-news">'; echo '<h4><span><a href="/category/blog/feed"><img src="/wp-content/themes/iq/images/rss-icon.gif" alt="Subscribe to our feed"/></a></span>IQNavigator Blog</h4>'; <?php query_posts('category_name=Blog&showposts=2'); if (have_posts()) : ?> echo '<ul>'; <?php while (have_posts()) : the_post(); ?> echo '<li><a href="<?php the_permalink();?>"><?php the_title();?> </a></li>'; <?php endwhile;?> echo '</ul>'; <?php endif;?> echo '<div class="twitter">'; echo '<p id="twitter-updates">'; <?php twitter_updates();?> echo '</p>'; echo '<p class="text-center"><a href="http://twitter.com/iqnavigator">Follow us on twitter</a></p>'; echo '</div>'; echo '</div>'; The whole darn long statement, for context reasons: <div class="sidebar"> <?php if (!is_search() && !is_page('Our Clients') && !is_archive()){ if($post->post_parent) { $children = wp_list_pages("title_li=&child_of=".$post->post_parent."&echo=0&depth=1&exclude=85,87,89,181,97,184"); } else { $children = wp_list_pages("title_li=&child_of=".$post->ID."&echo=0&depth=1&exclude=85,87,89,181,97,184"); } if ($children) { ?> <div class="panel links subnav"> <h3>In This Section</h3> <ul class="subnav"> <?php echo $children; ?> </ul> <p>&nbsp;</p> </div> <?php } } if(is_page('Our Clients') || in_category('Our Clients') || is_category('Our Clients')) { echo '<div class="panel links subnav">'; echo '<h3>In This Section</h3>'; echo '<ul class="subnav">'; wp_list_categories('child_of=21&title_li='); echo '</ul>'; echo '<p>&nbsp;</p>'; echo '</div>'; } else if (in_category('Blog')) { //PUT YOUR CODE HERE // echo get_page_content(34); echo '<div class="panel featured-resource">'; echo '<h4>Blog Contributors</h4>'; echo '<ul class"subnav">'; echo '<li><a href="/company/executive-team/john-f-martin/">John Martin</a></li>'; echo '<li><a href="/company/executive-team/kieran-brady/">Kieran Brady</a></li>'; echo '<li><a href="/company/executive-team/art-knapp/">Art Knapp</a></li>'; echo '</ul>'; echo '</div>'; echo '<div class="panel iq-news">'; echo '<h4><span><a href="/category/blog/feed"><img src="/wp-content/themes/iq/images/rss-icon.gif" alt="Subscribe to our feed"/></a></span>IQNavigator Blog</h4>'; <?php query_posts('category_name=Blog&showposts=2'); if (have_posts()) : ?> echo '<ul>'; <?php while (have_posts()) : the_post(); ?> echo '<li><a href="<?php the_permalink();?>"><?php the_title();?> </a></li>'; <?php endwhile;?> echo '</ul>'; <?php endif;?> echo '<div class="twitter">'; echo '<p id="twitter-updates">'; <?php twitter_updates();?> echo '</p>'; echo '<p class="text-center"><a href="http://twitter.com/iqnavigator">Follow us on twitter</a></p>'; echo '</div>'; echo '</div>'; //END CODE HERE } if (!is_page('Resources')) { ?> <div class="panel featured-resource"> <h4>Featured Resource</h4> <div class="embed"> <?php $custom_fields = get_post_custom(); $featured_video_code = $custom_fields['Featured Video Code']; if($featured_video_code) { foreach ( $featured_video_code as $key => $value ) { $the_code = $value; } $featured_video_link = $custom_fields['Featured Video Link']; foreach ( $featured_video_link as $key => $value ) { $the_link = $value; } $featured_video_text = $custom_fields['Featured Video Text']; foreach ( $featured_video_text as $key => $value ) { $the_text = $value; } if($the_code) { echo $the_code; } if($the_text) { echo '<ul>'; echo '<li>'; if($the_link) { echo '<a href="' . $the_link . '" class="video" target="_blank">' . $the_text . '</a>'; } else { echo $the_text; } echo '</li>'; echo '</ul>'; } } ?> + Visit Resource Center <div class="clr"></div> <div class="blue-bars"> <a href="<?php bloginfo('template_directory');?>/more-info.php" class="more-info" rel="facebox">Request More Info</a> <a href="<?php bloginfo('template_directory');?>/resource-form.php?id=701000000009E" class="view-demos" rel="facebox">Schedule a Demo</a> </div> </div> <div id="content">

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  • Help with java GUI- has error in main thread

    - by jan
    Hello guys, Basically im trying to do a Insurance Application form in java. And it uses multiple JPanels in a JFrame. -adding of JPanel into main program frame was done like this: //jpCenterArea to hold jp1-jp7 jpCenterArea.add(jp1); jpCenterArea.add(jp2); jpCenterArea.add(jp3); jpCenterArea.add(jp4); ...etc ********Add Jpanels to JFrame*****/ add(jpTitle, BorderLayout.NORTH); add(jpCenterArea, BorderLayout.CENTER); add(jpBottom, BorderLayout.SOUTH); However, even though program can compile, it cannot be run. error as mentioned below: Exception in thread "main" java.lang.NullPointerException at java.awt.Container.addImpl<Container.java:1045> at java.awt.Container.add<Container.java:365> at TravelInsuranceApplication.<init>TravelInsuranceApplication.java:120> at TravelInsuranceApplication.main<TravelInsuranceApplication.java:154> 1 import javax.swing.*; 2 import java.awt.*; 3 public class TravelInsuranceApplication extends JFrame 4 { 5 //declare private variables 6 private JLabel jlblTitle, jlblName, jlblNRIC, jlblAdd, jlblPostal, jlblContact, jlblDOB, 7 jlblEmail, jlblPeriod; 8 private JLabel jlblDeparture, jlblDays, jlblZone, jlblPlan; 9 private JTextField jtfName, jtfIC, jtfAdd, jtfPostal, jtfContact, jtfEmail, jtfZone; 10 private JRadioButton jrbResident, jrbOffice, jrbDeluxe, jrbClassic, jrbAsia, jrbWorldwide; 11 private ButtonGroup bgContact, bgZone, bgPlan; 12 private JComboBox jcDay, jcMonth, jcYear; 13 private JButton jbtnSubmit, jbtnCalculate, jbtnClear; 14 private JPanel jpTitle,jp1, jp2, jp3, jp4, jp5, jp6, jp7, jpBottom, jpCenterArea; 15 String[] day = {"1", "2", "3"}; 16 String[] month = {"january", "february"}; 17 String[] year = {"1981", "1985", "1990", "1995"}; 18 19 //constructor and GUI development 20 public TravelInsuranceApplication() 21 { 22 setSize(500,200); 23 setTitle("Travel Insurance Application"); 24 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 25 setLayout(new BorderLayout()); 26 27 //create ALL component objects/ 28 jlblTitle = new JLabel("Travel Insurance Application: "); 29 jlblName = new JLabel("Name of Insured: "); 30 jlblNRIC = new JLabel("NRIC: "); 31 jlblAdd = new JLabel("Address: "); 32 jlblPostal = new JLabel("Postal Code: "); 33 jlblContact = new JLabel("Telephone: "); 34 jlblDOB = new JLabel("Date Of Birth: "); 35 jlblEmail = new JLabel("Email Address: "); 36 jlblPeriod = new JLabel("Period Of Insurance "); 37 jlblDeparture = new JLabel("Departure Date "); 38 jlblDays = new JLabel("How Many Days To Insure "); 39 jlblZone = new JLabel("Zone: "); 40 jlblPlan = new JLabel("Plan: "); 41 42 jtfName = new JTextField(50); 43 jtfIC = new JTextField(15); 44 jtfAdd = new JTextField(50); 45 jtfPostal = new JTextField(15); 46 jtfContact = new JTextField(15); 47 jtfEmail = new JTextField(50); 48 jtfZone = new JTextField(100); 49 50 jrbResident = new JRadioButton("Rseident/Pgr"); 51 jrbOffice = new JRadioButton("Office/HP"); 52 jrbAsia = new JRadioButton("Asia"); 53 jrbAsia = new JRadioButton("Worldwide"); 54 jrbDeluxe = new JRadioButton("Deluxe"); 55 jrbClassic = new JRadioButton("Classic"); 56 57 jcDay = new JComboBox(day); 58 jcMonth = new JComboBox(month); 59 jcYear = new JComboBox(year); 60 61 jbtnSubmit = new JButton("Submit"); 62 jbtnCalculate = new JButton("Calculate"); 63 jbtnClear = new JButton("Clear"); 64 65 /****create JPanels - jpTitle, JpCenterArea & jp2-jp8 , jpBottom + setLayout 66 for ALL JPanels******/ 67 jpTitle = new JPanel(new FlowLayout(FlowLayout.CENTER)); 68 jpCenterArea = new JPanel(new FlowLayout()); 69 jp1 = new JPanel(new FlowLayout()); 70 jp2 = new JPanel(new FlowLayout(FlowLayout.CENTER)); 71 jp3 = new JPanel(new FlowLayout()); 72 jp4 = new JPanel(new FlowLayout()); 73 jp5 = new JPanel(new FlowLayout()); 74 jp6 = new JPanel(new FlowLayout(FlowLayout.CENTER)); 75 jp7 = new JPanel(new FlowLayout(FlowLayout.CENTER)); 76 jpBottom = new JPanel(new FlowLayout(FlowLayout.CENTER)); 77 78 79 80 81 //add components to JPanels 82 jpTitle.add(jlblTitle); 83 84 //jp1 85 jp1.add(jlblName); 86 jp1.add(jtfName); 87 jp1.add(jlblNRIC); 88 jp1.add(jtfIC); 89 90 //jp2 91 jp2.add(jlblAdd); 92 jp2.add(jtfAdd); 93 jp2.add(jlblPostal); 94 jp2.add(jtfPostal); 95 96 //jp3 97 jp3.add(jlblContact); 98 jp3.add(jtfContact); 99 jp3.add(jrbResident); 100 jp3.add(jrbOffice); 101 jp3.add(jlblDOB); 102 jp3.add(jcDay); 103 jp3.add(jcMonth); 104 jp3.add(jcYear); 105 106 //jp4 107 jp4.add(jlblEmail); 108 jp4.add(jtfEmail); 109 110 //jp5 111 jp5.add(jlblPeriod); 112 jp5.add(jlblDeparture); 113 jp5.add(jcDay); 114 jp5.add(jcMonth); 115 jp5.add(jcYear); 116 jp5.add(jlblDays); 117 jp5.add(jcDay); 118 119 //jp6 120 jp6.add(jlblZone); 121 jp6.add(jrbAsia); 122 jp6.add(jrbWorldwide); 123 jp6.add(jlblPlan); 124 jp6.add(jrbDeluxe); 125 jp6.add(jrbClassic); 126 127 //jp7 128 jp7.add(jtfZone); 129 130 //jpCenterArea to hold jp1-jp7 131 jpCenterArea.add(jp1); 132 jpCenterArea.add(jp2); 133 jpCenterArea.add(jp3); 134 jpCenterArea.add(jp4); 135 jpCenterArea.add(jp5); 136 jpCenterArea.add(jp6); 137 jpCenterArea.add(jp7); 138 139 //jpBottom 140 jpBottom.add(jbtnSubmit); 141 jpBottom.add(jbtnCalculate); 142 jpBottom.add(jbtnClear); 143 144 /********Add Jpanels to JFrame*****/ 145 add(jpTitle, BorderLayout.NORTH); 146 add(jpCenterArea, BorderLayout.CENTER); 147 add(jpBottom, BorderLayout.SOUTH); 148 149 setVisible(true); 150 151 152 153 }//end null constructor 154 public static void main(String[] args) 155 { 156 TravelInsuranceApplication travel = new TravelInsuranceApplication(); 157 158 }//end main 159 160 }//end class

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  • c# WinForms ReportViewer Performance issue using RefreshReport() and ServerReport.SetParameters()

    - by mdk
    Hi All, Currently I am writing a c# client application that uses the WinForms ReportViewer Control to display reports from a remote server. I am having performance troubles with the ReportViewer Control, to be specific with the 2 methods reportViewer.ServerReport.SetParameters() and reportViewer.RefreshReport() – they both take a really long time to complete and not just on the very first call, but on each subsequent call as well. SetParameters() takes 20 to 40 seconds (they vary greatly in time, some execute event okay fast) and RefreshReport() is a bit faster but still takes ages. I don’t think the server is the culprit, as the same report viewed using the browser renders pretty fast, about a second tops. The report in question doesn't matter as well. When I break into the process and take a look at the call stack, I see a call to Socket.DoConnect. So I thought that’s a good reason to start using fiddler and I installed it, disabled caching and fired up the app again to see which call takes that long to connect, but the performance issue was gone. By using a proxy I am having the same performance as the webbrowser. FYI: I am using NTLM authentication in the following way: reportViewer.ServerReport.ReportServerCredentials.NetworkCredentials = new NetworkCredentials() { Username = ... } I don’t have a strong webbackground, so I guess my question is: What should this tell me / What should I be looking into? (Btw: Adding fiddler to my installation package is not the solution I am looking for :)) I am grateful for any pointers. Take care, -Martin

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  • Hidden Features of C#?

    - by Serhat Özgel
    This came to my mind after I learned the following from this question: where T : struct We, C# developers, all know the basics of C#. I mean declarations, conditionals, loops, operators, etc. Some of us even mastered the stuff like Generics, anonymous types, lambdas, linq, ... But what are the most hidden features or tricks of C# that even C# fans, addicts, experts barely know? Here are the revealed features so far: Keywords yield by Michael Stum var by Michael Stum using() statement by kokos readonly by kokos as by Mike Stone as / is by Ed Swangren as / is (improved) by Rocketpants default by deathofrats global:: by pzycoman using() blocks by AlexCuse volatile by Jakub Šturc extern alias by Jakub Šturc Attributes DefaultValueAttribute by Michael Stum ObsoleteAttribute by DannySmurf DebuggerDisplayAttribute by Stu DebuggerBrowsable and DebuggerStepThrough by bdukes ThreadStaticAttribute by marxidad FlagsAttribute by Martin Clarke ConditionalAttribute by AndrewBurns Syntax ?? operator by kokos number flaggings by Nick Berardi where T:new by Lars Mæhlum implicit generics by Keith one-parameter lambdas by Keith auto properties by Keith namespace aliases by Keith verbatim string literals with @ by Patrick enum values by lfoust @variablenames by marxidad event operators by marxidad format string brackets by Portman property accessor accessibility modifiers by xanadont ternary operator (?:) by JasonS checked and unchecked operators by Binoj Antony implicit and explicit operators by Flory Language Features Nullable types by Brad Barker Currying by Brian Leahy anonymous types by Keith __makeref __reftype __refvalue by Judah Himango object initializers by lomaxx format strings by David in Dakota Extension Methods by marxidad partial methods by Jon Erickson preprocessor directives by John Asbeck DEBUG pre-processor directive by Robert Durgin operator overloading by SefBkn type inferrence by chakrit boolean operators taken to next level by Rob Gough pass value-type variable as interface without boxing by Roman Boiko programmatically determine declared variable type by Roman Boiko Static Constructors by Chris Easier-on-the-eyes / condensed ORM-mapping using LINQ by roosteronacid Visual Studio Features select block of text in editor by Himadri snippets by DannySmurf Framework TransactionScope by KiwiBastard DependantTransaction by KiwiBastard Nullable<T> by IainMH Mutex by Diago System.IO.Path by ageektrapped WeakReference by Juan Manuel Methods and Properties String.IsNullOrEmpty() method by KiwiBastard List.ForEach() method by KiwiBastard BeginInvoke(), EndInvoke() methods by Will Dean Nullable<T>.HasValue and Nullable<T>.Value properties by Rismo GetValueOrDefault method by John Sheehan Tips & Tricks nice method for event handlers by Andreas H.R. Nilsson uppercase comparisons by John access anonymous types without reflection by dp a quick way to lazily instantiate collection properties by Will JavaScript-like anonymous inline-functions by roosteronacid Other netmodules by kokos LINQBridge by Duncan Smart Parallel Extensions by Joel Coehoorn

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  • Top-Rated JavaScript Blogs

    - by Andreas Grech
    I am currently trying to find some blogs that talk (almost solely) on the JavaScript Language, and this is due to the fact that most of the time, bloggers with real life experience at work or at home development can explain more clearly and concisely certain quirks and hidden features than most 'Official Language Specifications' Below find a list of blogs that are JavaScript based (will update the list as more answers flow in): DHTML Kitchen, by Garrett Smith Robert's Talk, by Robert Nyman EJohn, by John Resig (of jQuery) Crockford's JavaScript Page, by Douglas Crockford Dean.edwards.name, by Dean Edwards Ajaxian, by various (@Martin) The JavaScript Weblog, by various SitePoint's JavaScript and CSS Page, by various AjaxBlog, by various Eric Lippert's Blog, by Eric Lippert (talks about JScript and JScript.Net) Web Bug Track, by various (@scunliffe) The Strange Zen Of JavaScript , by Scott Andrew Alex Russell (of Dojo) (@Eran Galperin) Ariel Flesler (@Eran Galperin) Nihilogic, by Jacob Seidelin (@llimllib) Peter's Blog, by Peter Michaux (@Borgar) Flagrant Badassery, by Steve Levithan (@Borgar) ./with Imagination, by Dustin Diaz (@Borgar) HedgerWow (@Borgar) Dreaming in Javascript, by Nosredna spudly.shuoink.com, by Stephen Sorensen Yahoo! User Interface Blog, by various (@Borgar) remy sharp's b:log, by Remy Sharp (@Borgar) JScript Blog, by the JScript Team (@Borgar) Dmitry Baranovskiy’s Web Log, by Dmitry Baranovskiy James Padolsey's Blog (@Kenny Eliasson) Perfection Kills; Exploring JavaScript by example, by Juriy Zaytsev DailyJS (@Ric) NCZOnline (@Kenny Eliasson), by Nicholas C. Zakas Which top-rated blogs am I currently missing from the above list, that you think should be imperative to any JavaScript developer to read (and follow) concurrently?

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  • Yet another Subversion "Commit failed" MERGE of 'blabla': 200 OK

    - by marty3d
    Hi! I get the infamous "MERGE of 'whatever': 200 OK" whenever I try to commit using a post-commit hook on Windows (running the repository and Trac locally), and I'm going crazy. I've been looking all over for a day now, without finding any solutions. So here's how it's set up and what I've tried so far: Settings: Windows 7 (64-bit) VisualSVN Server TortoiseSVN Trac 0.11.6 I'm using the three standard scripts for post-commit on Windows. Everything works when I run post-commit.cmd from the command prompt with repo and changesetnumber as parameters. After extensive trouble-shooting, I found that if I remove the last line in trac-post-commit.cmd, Python "%~dp0\trac-post-commit-hook.py" -p "%TRAC_ENV%" -r "%REV%" -u "%AUTHOR%" -m "%LOG%", the Commit failed error goes away. Adding 1/0 (generating a division by zero error) in the python script doesn't show anything different. From the command prompt I get an error, though. Removing all code in the python script also makes the commit failed go away, so I guess the culprit is in trac-post-commit-hook.py. Perhaps if I could send the actual error to a log file, I could dig a little deeper, but I'm not sure how. post-commit.cmd: call %~dp0\trac-post-commit-hook.cmd %1 %2 trac-post-commit-hook.cmd: http://trac.edgewall.org/browser/trunk/contrib/trac-post-commit-hook?rev=920 Thank you so much, it would mean alot if someone could assist a little here! /Martin

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  • Metaprogramming - self explanatory code - tutorials, articles, books

    - by elena
    Hello everybody, I am looking into improving my programming skils (actually I try to do my best to suck less each year, as our Jeff Atwood put it), so I was thinking into reading stuff about metaprogramming and self explanatory code. I am looking for something like an idiot's guide to this (free books for download, online resources). Also I want more than your average wiki page and also something language agnostic or preferably with Java examples. Do you know of such resources that will allow to efficiently put all of it into practice (I know experience has a lot to say in all of this but i kind of want to build experience avoiding the flow bad decisions - experience - good decisions)? EDIT: Something of the likes of this example from the Pragmatic Programmer: ...implement a mini-language to control a simple drawing package... The language consists of single-letter commands. Some commands are followed by a single number. For example, the following input would draw a rectangle: P 2 # select pen 2 D # pen down W 2 # draw west 2cm N 1 # then north 1 E 2 # then east 2 S 1 # then back south U # pen up Thank you!

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  • code review: Is it subjective or objective(quantifiable) ?

    - by Ram
    I am putting together some guidelines for code reviews. We do not have one formal process yet, and trying to formalize it. And our team is geographically distributed We are using TFS for source control (used it for tasks/bug tracking/project management as well, but migrated that to JIRA) with VS2008 for development. What are the things you look for when doing a code review ? These are the things I came up with Enforce FXCop rules (we are a Microsoft shop) Check for performance (any tools ?) and security (thinking about using OWASP- code crawler) and thread safety Adhere to naming conventions The code should cover edge cases and boundaries conditions Should handle exceptions correctly (do not swallow exceptions) Check if the functionality is duplicated elsewhere method body should be small(20-30 lines) , and methods should do one thing and one thing only (no side effects/ avoid temporal coupling -) Do not pass/return nulls in methods Avoid dead code Document public and protected methods/properties/variables What other things do you generally look for ? I am trying to see if we can quantify the review process (it would produce identical output when reviewed by different persons) Example: Saying "the method body should be no longer than 20-30 lines of code" as opposed to saying "the method body should be small" Or is code review very subjective ( and would differ from one reviewer to another ) ? The objective is to have a marking system (say -1 point for each FXCop rule violation,-2 points for not following naming conventions,2 point for refactoring etc) so that developers would be more careful when they check in their code.This way, we can identify developers who are consistently writing good/bad code.The goal is to have the reviewer spend about 30 minutes max, to do a review (I know this is subjective, considering the fact that the changeset/revision might include multiple files/huge changes to the existing architecture etc , but you get the general idea, the reviewer should not spend days reviewing someone's code) What other objective/quantifiable system do you follow to identify good/bad code written by developers? Book reference: Clean Code: A handbook of agile software craftmanship by Robert Martin

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  • facebook connect: thumbnail images broken up in FB.Connect.streamPublish pop-up prompt, and on wall

    - by Hoff
    hi there! I'm using facebook connect so that users can publish comments they are leaving on my site on their facebook wall as well. It works as intended, except that in the confirmation pop up, the thumbnail image i provide is broken. Looking at the source, I can see that facebook prepended my image url like this: from: http://www.mysite.com/path/to/my/image.jpg to: http://platform.ak.fbcdn.net/www/app_full_proxy.php?app=303377111175&v=1&size=z&cksum=41a391c9f3a6f3dde2ede9892763c943&src=http%3A%2F%2Fwww.mysite.com%2Fpath%2Fto%2Fmy%2image.jpg The image on the facebook user's wall has the same prepended url, and is also broken for a couple of minutes, after which it's showing up correctly. But obviously, having a broken image in the confirmation window and on your wall for a couple of minutes is not a good experience... Has anybody experienced the same / knows how to work around this issue? Thanks a lot in advance! Martin PS: here's the part of the js call, if it's of any use... attachment = { 'media': [{ 'type': 'image', 'src': 'http://www.mysite.com/path/to/my/image.jpg', 'href': 'http://www.mysite.com/the/current/page' }] }; FB.Connect.streamPublish(user_message, attachment, action_links, target_id, user_message_prompt, fbcallback, false, actor_id)

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