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  • ASP.NET MVC: How to Display custom object properties in View page

    - by Shyju
    I am trying to add ASP.NET MVC features(Especially Routing) to my already existing ASP.NET Web application.I added a Controlled and View (an asp.net page) .Now i want to know how can i display the details of object of my custom class( Ex : User) in the view ? Can assign the object in ViewData collection and render it in the view ? Hows that ? I already have a Datalayer (in ADO.NET) which is running for the the current ASP.NET web app.So i want to use that. I tried this in my controller public ActionResult Index() { BusinessObject.User objUser = new BusinessObject.User(); objUser.EmailId = "[email protected]"; objUser.ProfileTitle = "Web developer with 6 yrs expereince"; ViewData["objUser"] = objUser; ViewData["Message"] = "This is ASP.NET MVC!"; return View(); } How can i use this in the view page to display the user details ? Thanks in advance

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  • Grails Unit testing a function with session object

    - by Suganthan
    I having a Controller like def testFunction(testCommand cmdObj) { if (cmdObj.hasErrors()) { render(view: "testView", model: [cmdObj:cmdObj]) return } else { try { testService.testFunction(cmdObj.var1, cmdObj.var2, session.user.username as String) flash.message = message(code: 'message') redirect url: createLink(mapping: 'namedUrl') } catch (GeneralException error) { render(view: "testView", model: [cmdObj:cmdObj]) return } } } For the above controller function I having a Unit test function like: def "test function" () { controller.session.user.username = "testUser" def testCommandOj = new testCommand( var1:var1, var2:var2, var3:var3, var4:var4 ) testService service = Mock(testService) controller.testService = service service.testFunction(var2,var3,var4) when: controller.testFunction(testCommandOj) then: view == "testView" assertTrue model.cmdObj.hasErrors() where: var1 | var2 | var3 | var4 "testuser" | "word@3" | "word@4" | "word@4" } When running this test function I getting the error like Cannot set property 'username' on null object, means I couldn't able to set up the session object. Can someone help to fix this. Thanks in advance

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  • Syncing two sheets, while being able to hide different data

    - by Joshua
    I'm pretty new to excel- so please bear with me. I have created a spreadsheet to organize gear by serial numbers and by who has it. This list is getting updated multiple times daily as gear shuffles regularly. I have gear that is assigned and unassigned. On the main sheet I have all the data, the way I want it to be organized. What I'm trying to do is duplicate this sheet, so that both sheets automatically keep the same data at all times, but on the first sheet I can hide all the unassigned gear, and view only the assigned gear, and then be able to narrow it down in groups using the hide function heavily. On the second sheet I want to be able to hide all of the assigned gear, and all the columns of gear that have no unassigned gear. End result will be that as gear is moved between individuals or is unassigned entirely, I make that adjustment on one sheet and the data stays the same on both, but the way I view that same sheet is different on both. If I'm making no sense just let me know and I'll try to explain again more clearly. Thanks

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  • "iostat" command different in two equal machines

    - by Oz.
    We have several machines on Amazon (ec2) of the type c1.xlarge with 8 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit platform I/O Performance: High API name: c1.xlarge One out of the several machines is showing a high load average, since we have run the last yum upgrade a couple of weeks a go. We did not yet update the other machines, and everything looks normal on them. The strange thing is that the top command not showing any hint for the cause of the load. CPUs are - 4.8%us, 1.1%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st. Mem is about 1.5GB free. Any idea what could it be, or where else can we check? iostat command on the proper machine: avg-cpu: %user %nice %system %iowait %steal %idle 8.97 0.03 4.46 0.19 0.14 86.23 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 1.60 0.69 55.38 587620 47254184 xvdfp2 2.64 1.10 61.04 934786 52091056 xvdfp4 0.86 0.19 41.72 163866 35601920 xvdfp1 4.37 36.59 73.89 31220810 63051504 xvdfp3 8.03 7.08 94.63 6045402 80749184 iostat command on problematic machine: avg-cpu: %user %nice %system %iowait %steal %idle 9.29 0.04 5.55 0.26 0.11 84.74 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 2.13 3.34 68.85 246244 5077888 xvdfp1 7.60 74.31 104.88 5480362 7734840 xvdfp3 13.22 73.67 125.00 5433386 9218600 xvdfp4 1.11 0.76 65.08 55762 4799248 xvdfp2 4.16 3.31 99.17 243818 7313264 Many thanks for the help.

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  • C#: Preferred pattern for functions requiring arguments that implement two interfaces

    - by JS Bangs
    The argument to my function f() must implement two different interfaces that are not related to each other by inheritance, IFoo and IBar. I know of two different ways of doing this. The first is to declare an empty interface that inherits from both: public interface IFooBar : IFoo, IBar { // nothing to see here } public int f(IFooBar arg) { // etc. } This, of course, requires that the classes declare themselves as implementing IFooBar rather than IFoo and IBar separately. The second way is to make f() generic with a constraint: public int f<T>(T arg) where T : IFoo, IBar { // etc. } Which of these do you prefer, and why? Are there any non-obvious advantages or disadvantages to each?

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  • Getters and Setters: Code smell, Necessary Evil, or Can't Live Without Them [closed]

    - by Avery Payne
    Possible Duplicate: Allen Holub wrote “You should never use get/set functions”, is he correct? Is there a good, no, a very good reason, to go through all the trouble of using getters and setters for object-oriented languages? What's wrong with just using a direct reference to a property or method? Is there some kind of "semantical coverup" that people don't want to talk about in polite company? Was I just too tired and fell asleep when someone walked out and said "Thou Shalt Write Copious Amounts of Code to Obtain Getters and Setters"? Follow-up after a year: It seems to be a common occurrence with Java, less so with Python. I'm beginning to wonder if this is more of a cultural phenomena (related to the limitations of the language) rather than "sage advice". The -1 question score is complete for-the-lulz as far as I am concerned. It's interesting that there are specific questions that are downvoted, not because they are "bad questions", but rather, because they hit someone's raw nerve.

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  • What exactly is Two-way databinding in WPF ?

    - by blntechie
    I'm learning WPF with MVVM and for a starter, I viewed Jason Dolinger's video on MVVM . In that he mentioned, that one of the advantage of using MVVM with WPF is two-way data binding. My question is what does he mean by two-way data binding? Is that the feature of ability to 1) bind data from controls(View) to properties in VM and 2) any change in collections or properties are reflected in the view? If I'm wrong, can anyone please explain me in detail what it is and what are its advantages? This might be a very simple doubt, but I'm very new to WPF and it's terminologies and moving away from WinForms now.

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  • Two VHosts Use Same DocumentRoot, PHP Not Working on Second VHost

    - by thegrip
    I'm helping maintain an e-commerce site that is run on Magento. This site is an outlet for our wholesale customers. We have recently decided to open a second store to reach out to our Retail customers. We decided to set up another website inside of our magento store so that we can share the products across both stores. I'm in the process of setting up this new site on the server, but have run into an issue. I've set up the second vhost for the new retail site, and I've made the DocumentRoot for this vhost the same as for the wholesale site, so we can use one magento application for both sites. This is where the error occurs. When I browse to the new store it triggers a download of the index.php file. So I know the DocumentRoot directive is working, but it seems like PHP is being broken in the process. I'm using plesk to manage the server. I've made sure that PHP is turned on in both vhosts and still get the same issue. Does this sound like a problem of PHP breaking, or is it possible my vhost.conf file is set up incorrectly? (Although the vhost is managed by plesk and appears correct) Any help will be much appreciated. EDIT: Here's the vhost configs (generated by plesk): <VirtualHost IPADDRESS:80> ServerName domain.com:80 ServerAdmin "[email protected]" DocumentRoot /var/www/vhosts/domain.com/subdomains/tk/httpdocs CustomLog /var/www/vhosts/domain.com/statistics/logs/access_log plesklog ErrorLog /var/www/vhosts/domain.com/statistics/logs/error_log <IfModule mod_ssl.c> SSLEngine off </IfModule> <Directory /var/www/vhosts/domain.com/subdomains/tk/httpdocs> <IfModule mod_php4.c> php_admin_flag engine on php_admin_flag safe_mode off php_admin_value open_basedir "/var/www/vhosts/domain.com/subdomains/tk/httpdocs:/tmp" </IfModule> <IfModule mod_php5.c> php_admin_flag engine on php_admin_flag safe_mode off php_admin_value open_basedir "/var/www/vhosts/mkdesigngroup.com/subdomains/tk/httpdocs:/tmp" </IfModule> Options -Includes -ExecCGI </Directory> Include /var/www/vhosts/domain.com/subdomains/tk/conf/vhost.conf And here's what I've added in vhost.conf (which is included by plesk): DocumentRoot /var/www/vhosts/domain.com/subdomains/dev/httpdocs -grip

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  • Can running object be garbage collected?

    - by Kugel
    I have a simple class: public class Runner { public void RunAndForget(RunDelegate method) { ThreadPool.QueueUserWorkItem(new WaitCallback(Run), method); } private void Run(object o) { ((RunDelegate )o).Invoke(); } } And if I use this like so: private void RunSomethingASync() { Runner runner = new Runner(); runner.FireAndForget(new RunDelegate(Something)); } Is there any danger using it like this? My C++ guts tell me that runner object should be destroyed after RunSomethingASync is finished. Am I right? What happens then to the method running on different thread? Or perhaps it is other way around and runner will not be collected? That would be a problem considering I may call RunSomethingASync() many times.

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  • Duplicate an AppEngine Query object to create variations of a filter without affecting the base quer

    - by Steve Mayne
    In my AppEngine project I have a need to use a certain filter as a base then apply various different extra filters to the end, retrieving the different result sets separately. e.g.: base_query = MyModel.all().filter('mainfilter', 123) Then I need to use the results of various sub queries separately: subquery1 = basequery.filter('subfilter1', 'xyz') #Do something with subquery1 results here subquery2 = basequery.filter('subfilter2', 'abc') #Do something with subquery2 results here Unfortunately 'filter()' affects the state of the basequery Query instance, rather than just returning a modified version. Is there any way to duplicate the Query object and use it as a base? Is there perhaps a standard Python way of duping an object that could be used? The extra filters are actually applied by the results of different forms dynamically within a wizard, and they use the 'running total' of the query in their branch to assess whether to ask further questions. Obviously I could pass around a rudimentary stack of filter criteria, but I'd rather use the Query itself if possible, as it adds simplicity and elegance to the solution.

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  • Business Object desgin

    - by Dan
    I have a question about how I setup my BO's. I setup the BO's to contain all of my properties of the object as well as the business logic to satisfy the business rules. I decided to make all of the methods static, but I'm not sure if that was the right decision. Someone told me to split my BO's into an Entity Object of just properties and then a BO of just methods that do business rules, and don't make the methods static. Does anyone have some experience with the way i've set this up? Any examples of how it might work better for future growth? Thanks!

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  • Why would a "view" object in Interface Builder prevent my didFinishLaunchingWithOptions method from

    - by BeachRunnerJoe
    You may have already come across some of my other questions related to question, but I was having an issue with a SplitView iPad app where my application:didFinishLaunchingWithOptions method stopped executing after I went into Interface Builder and changed around the structure of my apps interface. I couldn't figure out what was preventing my didFinishLauchingWithOptions method from executing, but then I removed a "view" object I had in my view heirarchy (shown below) and suddenly my didFinishLauchingWithOptions method started executing again. I've moved passed it now, but I'm still unclear why that would cause the problem. Any ideas why that "view" object would prevent the didFinishLaunchingWithOptions method from executing?

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  • Iptables rules, forward between two interfaces

    - by Marco
    i have a some difficulties in configuring my ubuntu server firewall ... my situation is this: eth0 - internet eth1 - lan1 eth2 - lan2 I want that clients from lan1 can't communicate with clients from lan2, except for some specific services. E.g. i want that clients in lan1 can ssh into client in lan2, but only that. Any other comunication is forbidden. So, i add this rules to iptables: #Block all traffic between lan, but permit traffic to internet iptables -I FORWARD -i eth1 -o ! eth0 -j DROP iptables -I FORWARD -i eth2 -o ! eth0 -j DROP # Accept ssh traffic from lan1 to client 192.168.20.2 in lan2 iptables -A FORWARD -i eth1 -o eth2 -p tcp --dport 22 -d 192.168.20.2 -j ACCEPT This didn't works. Doing iptables -L FORWARD -v i see: Chain FORWARD (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 33 144 DROP all -- eth1 !eth0 anywhere anywhere 0 0 DROP all -- eth2 !eth0 anywhere anywhere 23630 20M ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED 0 0 ACCEPT all -- eth1 any anywhere anywhere 175 9957 ACCEPT all -- eth1 any anywhere anywhere 107 6420 ACCEPT all -- eth2 any anywhere anywhere 0 0 ACCEPT all -- pptp+ any anywhere anywhere 0 0 ACCEPT all -- tun+ any anywhere anywhere 0 0 ACCEPT tcp -- eth1 eth2 anywhere server2.lan tcp dpt:ssh All packets are dropped, and the count of packets for the last rule is 0 ... How i have to modify my configuration? Thank you. Regards Marco

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  • how to return the current object?

    - by ajsie
    in code igniter you can type: $query = $this->db->query("YOUR QUERY"); foreach ($query->result() as $row) { echo $row->title; echo $row->name; echo $row->body; } i guess that the query method returns the object it's part of. am i correct? if i am, how do you type the line where it returns the object? so what i wonder is how it looks like inside the query method for the above code to be functional. public function query($sql) { // some db logic here with the $sql and saves the values to the properties (title, name and body) return X } with other words, what should X be?

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  • Synchronize two directories on linux pc

    - by Gab
    I need a distributed filesystem (or a synchronization tool) that is capable of keeping a directory synchronized across 4 pc. My requirements are: offline access (data must be available offline on each pc) preserve execution rights: some files are marked executable on a linux partition. This flag should be replicated. efficient sync strategy: some of my files are 20GB, they are changed quite often, but in very little parts (Virtualbox images). Delta transmissions are welcome. efficient handling of space: no history for files, files shouldn't be copied to temp directories "just in case you break it". it must propagate deletions of files modification can happen in any of the 4 pcs, they should be propagated when other pc are connected. Other specs of my solution are: Sync is over a lan, the total amount of data to be synced is around 180GB, in some ten thousand files. Changes are small, but can happen in big files. At the moment i'm interested in a linux only solution. conflicts either don't happen or are solved with "last one wins" I haven't found any good solution. I've been trying: unison: it is the only one working at the moment, but during the hashing phase it hangs my pc for some minute, disk light steady on. Sparkleshare doesn't handle large files nicely. It keeps an history of all your changes that grows up indefinitely. They promise it will be fixed in next releases, but at the moment it still doesn't fit my needs. owncloud (keeps history of each file i change) coda ? (help! i couldn't set it up correctly!) git-annex assistant transforms all your files in symlinks and mark the original file as read only ("just in case you make a mistake while you modify it"!). Before you edit a file you have to issue a special command "git-annex unlock", that creates a local copy of the file, and you have to remember to lock it again if you want it synchronized. What to try next?

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  • How to preserve object identity across different VMs

    - by wheleph
    To be specific let me illustrate the question with Spring http-remoting example. Suppose we have such implementation of a simple interface: public SearchServiceImpl implements SearchService { public SearchJdo processSearch(SearchJdo search) { search.name = "a funky name"; return search; } } SearchJdo is itself a simple POJO. Now when we call the method from a client through http-remoting we'll get: public class HTTPClient { public static void main(final String[] arguments) { final ApplicationContext context = new ClassPathXmlApplicationContext( "spring-http-client-config.xml"); final SearchService searchService = (SearchService) context.getBean("searchService"); SearchJdo search = new SearchJdo(); search.name = "myName"; // this method actually returns the same object it gets as an argument SearchJdo search2 = searchService.processSearch(search); System.out.println(search == search2); // prints "false" } } The problem is that the search objects are different because of serializaton although from logical prospective they are the same. The question is whether there are some technique that allows to support or emulate object identity across VMs.

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  • Large, high performance object or key/value store for HTTP serving on Linux

    - by Tommy
    I have a service that serves images to end users at a very high rate using plain HTTP. The images vary between 4 and 64kbytes, and there are 1.300.000.000 of them in total. The dataset is about 30TiB in size and changes (new objects, updates, deletes) make out less than 1% of the requests. The number of requests pr. second vary from 240 to 9000 and is dispersed pretty much all over, with few objects being especially "hot". As of now, these images are files on a ext3 filesystem distributed read only across a large amount of mid range servers. This poses several problems: Using a fileysystem is very inefficient since the metadata size is large, the inode/dentry cache is volatile on linux and some daemons tend to stat()/readdir() it's way through the directory structure, which in my case becomes very expensive. Updating the dataset is very time consuming and requires remounting between set A and B. The only reasonable handling is operating on the block device for backup, copying, etc. What I would like is a deamon that: speaks HTTP (get, put, delete and perhaps update) stores data it in an efficient structure. The index should remain in memory, and considering the amount of objects, the overhead must be small. The software should be able to handle massive connections with slow (if any) time needed to ramp up. Index should be read in memory at startup. Statistics would be nice, but not mandatory. I have experimented a bit with riak, redis, mongodb, kyoto and varnish with persistent storage, but I haven't had the chance to dig in really deep yet.

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  • Convert object to DateRange

    - by user655832
    I'm querying an underlying PostgreSQL database using Pandas 0.8. Pandas is returning the DataFrame properly but the underlying timestamp column in my database is being returned as a generic "object" type in Pandas. As I would eventually like to seasonal normalization of my data I am curious as to how to convert this generic "object" column to something that is appropriate for analysis. Here is my current code to retrieve the data: # get records from db example import pandas.io.sql as psql import psycopg2 # define query to get all subs created this year QRY = """ select i i, i * random() f, case when random() > 0.5 then true else false end t, (current_date - (i*random())::int)::timestamp with time zone tsz from generate_series(1,1000) as s(i) order by 4 ; """ CONN_STRING = "host='localhost' port=5432 dbname='postgres' user='postgres'" # connect to db conn = psycopg2.connect(CONN_STRING) # get some data set index on relid column df = psql.frame_query(QRY, con=conn) print "Row count retrieved: %i" % (len(df),) Thanks for any help you can render. M

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  • Good code architecture for this problem?

    - by RCIX
    I am developing a space shooter game with customizable ships. You can increase the strength of any number of properties of the ship via a pair of radar charts*. Internally, i represent each ship as a subclassed SpaceObject class, which holds a ShipInfo that describes various properties of that ship. I want to develop a relatively simple API that lets me feed in a block of relative strengths (from minimum to maximum of what the radar chart allows) for all of the ship properties (some of which are simplifications of the underlying actual set of properties) and get back a ShipInfo class i can give to a PlayerShip class (that is the object that is instantiated to be a player ship). I can develop the code to do the transformations between simplified and actual properties myself, but i would like some recommendations as to what sort of architecture to provide to minimize the pain of interacting with this translator code (i.e. no methods with 5+ arguments or somesuch other nonsense). Does anyone have any ideas? *=not actually implemented yet, but that's the plan.

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  • Divide a network into two subnets of equal size

    - by kylex
    I have been given the following IP 192.168.14.137/25 and asked to divide the network into 2. This is what I've come up with: The subnet mask is therefore 255.255.255.128 The network address is 192.168.14.128 There are a total of 128 available addresses (including the network address and broadcast address) To divide the network we create to subnets: 192.168.14.128/26 192.168.14.192/26 This will have a subnet mask of 255.255.255.192 Am I missing anything, or is this correct?

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  • PHP 5.4: disable warning "Creating default object from empty value"

    - by Werner
    I want to migrate code from PHP 5.2 to 5.4. This worked fine so far except that all the code I use makes extensive use of just using an object with a member without any initialisation, like: $MyObject->MyMember = "Hello"; which results in the warning: "Creating default object from empty value" I know that the solution would be to use: $MyObject = new stdClass(); $MyObject->MyMember = "Hello"; but it would be A LOT OF WORK to change this in all my code, because I use this many times in different projects. I know, it's not good style, but unfortunately I'm not able to spend the next weeks adding this to all of my code. I know I could set the php error_reporting to not reporting warnings, but I want to be able to still get other warnings and notices. This warning doesn't seem to be effected by enable or disable E_STRICT at all. So is there a way to just disable this warning?!

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  • ASP.NET data bind two-way, bi-directional from code behind

    - by Konrad
    Hello, so for two-way (bi-directional) databinding in ASP, we do this... <asp:textbox id="txtField" runat="server" text='<%# Bind("SomeField") %>'> </asp:textbox> SomeField is located on the DataSource of the DetailsView that serves as the container for the textbox. Alternatively I could do this from code-behind (using the textbox's OnDataBinding event): protected void SomeField_OnDataBinding(object sender, EventArgs e) { ((TextBox)sender).Text = Eval("SomeField").ToString(); } However, EVAL is read-only...how can I specify Bind (two-way) from code-behind?

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