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  • Databinding Error when Recreating object

    - by Maxim Gershkovich
    Hi All, Figure there is a simple solution to this problem but I have been unable to find it. I have databinding in an ASP.Net application to a GridView. This gridview is bound to an ObjectDataSource as per standard usage. The problem I have is that one of my bound fields uses the property DataFormatString="{0:C}" and due to the currency format being displayed when an update is attempted and the object recreated I get a error as such "$13.00 is not a valid value for Decimal." Clearly this is a result of the column using a FormatString and then attempting to bind it back to a decimal property I have in my object called UnitPrice. I am assuming there is some markup I can set that can specify how the value is translated back? Thanks in advance for any help.

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  • htaccess rewrite different folder url, two index files

    - by Andrew
    I've been searching for awhile now and haven't found anything that comes close to what I'm trying to accomplish. Right now my URL's look like this: www.website.com/something which are using the root folder /index.php Now I have created plugins within folders: /plugins/PLUGINNAME/index.php I want to be able to have URLs like: www.website.com/plugins/PLUGINNAME/anything/iwant/here which are all using /plugins/PLUGINNAME/index.php and not the root directory index.php. Currently www.website.com/plugins/PLUGINNAME/ works, but anything after /PLUGINNAME/xxx defaults to the /index.php.

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  • Two different definitions of database schema

    - by AspOnMyNet
    a) I found two definitions of schema: FIRST - A set of information that describes a table is known as a schema, and schemas are used to describe specific tables within a database, as well as entire databases (and the relationship between tables in them, if any). SECOND - A database schema is a way to logically group objects such as tables, views, stored procedures etc. Think of a schema as a container of objects. I assume the two descriptions describe entirely different concepts, which just happen to use the same name? b) A database schema is a way to logically group objects such as tables, views, stored procedures etc. Think of a schema as a container of objects. If I understand the above definition correctly, then database schema is similar to a namespace, only difference being that we can assign access permissions to database schema, while same can’t be done with namespaces? thanx

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  • X11 forwarding - have window showing on two computers.

    - by Tim
    I currently have 2 desks: one with a mac, the other with a 2 Linux computers on. One of those Linux computers is constantly on, so I would run the chat app on that (pidgin, most likely). I can run pidgin on Mac by sshing into the Linux computer with "ssh -X", i.e. X11 forwarding. However, I want to have the chat windows viewable on both computers simultaneously (or at the very least, by entering a command or whatever). Is this possible and if so, how? (Also: I know that it'd be possible via VNC or whatever, but yuck - X11 on mac is bad enough.) Thanks, Tim

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  • Make object available within php functions without passing them or making them global

    - by Matt
    Hey all, This requirement is just for simplicity for developers and beautiful code. I'm building a template system and I really would just like an object variable to simply be there in all functions. Here's some code: Librarian.php: $class = "slideshow"; $function = "basic"; $args = array(...); $librarian = $this; // I WOULD LIKE THIS TO BE PRESENT IN CALLED FUNCTION ... return call_user_func($class.'::'.$function, $args); ... Slideshow.php: public static function basic($args) { echo $librarian; // "Librarian Object" } Thanks! Matt Mueller

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  • Specialization hierarchy in a domain-model

    - by devoured elysium
    I'm trying to make the domain model of a management system. I have the following kinds of persons in this system: employee manager top mananger I decided to define a User, from where employee, manager and top manager will specialize from. What I don't know is what kind of specialization hierarchy I should choose from. I thought of two ways: or Which might be preferable and why? As a long time coder, every time I try to do a domain-model, I have to fight against the idea of trying to think in how I'm going to code this. From what I've understood, I should not think about those matters in the domain-model, only in object relationships. I don't have to think of code duplication or any of these kind of details here, so I can't really pick any of the options over the other. Thanks

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  • C# problem with two threads and hardware access

    - by mack369
    I'm creating an application which communicates with the device via FT2232H USB/RS232 converter. For communication I'm using FTD2XX_NET.dll library from FTDI website. I'm using two threads: first thread continuously reads data from the device the second thread is the main thread of the Windows Form Application I've got a problem when I'm trying to write any data to the device while the receiver's thread is running. The main thread simply hangs up on ftdiDevice.Write function. I tried to synchronize both threads so that only one thread can use Read/Write function at the same time, but it didn't help. Below code responsible for the communication. Note that following functions are methods of FtdiPort class. Receiver's thread private void receiverLoop() { if (this.DataReceivedHandler == null) { throw new BackendException("dataReceived delegate is not set"); } FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK; byte[] readBytes = new byte[this.ReadBufferSize]; while (true) { lock (FtdiPort.threadLocker) { UInt32 numBytesRead = 0; ftStatus = ftdiDevice.Read(readBytes, this.ReadBufferSize, ref numBytesRead); if (ftStatus == FTDI.FT_STATUS.FT_OK) { this.DataReceivedHandler(readBytes, numBytesRead); } else { Trace.WriteLine(String.Format("Couldn't read data from ftdi: status {0}", ftStatus)); Thread.Sleep(10); } } Thread.Sleep(this.RXThreadDelay); } } Write function called from main thread public void Write(byte[] data, int length) { if (this.IsOpened) { uint i = 0; lock (FtdiPort.threadLocker) { this.ftdiDevice.Write(data, length, ref i); } Thread.Sleep(1); if (i != (int)length) { throw new BackendException("Couldnt send all data"); } } else { throw new BackendException("Port is closed"); } } Object used to synchronize two threads static Object threadLocker = new Object(); Method that starts the receiver's thread private void startReceiver() { if (this.DataReceivedHandler == null) { return; } if (this.IsOpened == false) { throw new BackendException("Trying to start listening for raw data while disconnected"); } this.receiverThread = new Thread(this.receiverLoop); //this.receiverThread.Name = "protocolListener"; this.receiverThread.IsBackground = true; this.receiverThread.Start(); } The ftdiDevice.Write function doesn't hang up if I comment following line: ftStatus = ftdiDevice.Read(readBytes, this.ReadBufferSize, ref numBytesRead);

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  • Operation is not valid due to the current state of the object

    - by DBa
    Sometimes, when running a Mono .NET application (it seems to not depend on the input data, as it does not change), I run into following situation: when trying to Dequeue an element from a (non-empty, I check its Count beforehand) Queue, an exception is thrown: Unhandled Exception: System.InvalidOperationException: Operation is not valid due to the current state of the object at System.Collections.Generic.Queue1[DBWorkItem].Peek ()[0x00000] at System.Collections.Generic.Queue1[DBWorkItem].Dequeue () [0x00000] at DBProcessor.process (System.Object q) [0x0006b] in <... Though I can certainly catch this exception, the element is dequeued and lost. Has anyone else encountered this behavior, too?

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  • Undefined Variable in Matlab

    - by OrangeRind
    The Following is the basic skeleton for my MATLAB program. Each box is a class definition. Scroll down for the error. Note: Each Class has a custom constructor which does not require an external parameter The Error Undefined function or variable 'Troom'. Error in == wallwall.wall at 31 function o = wall(Tr) Error in == mainfile at 5 w1 = wall(); This comes when I create an object of Class wall from another file "mainfile" Question Why is this happening? Am I getting wrong in the concepts of OOP for Matlab specific? How do I resolve this? Thanks in Advance!

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  • How do I destruct data associated with an object after the object no longer exists?

    - by Phineas
    I'm creating a class (say, C) that associates data (say, D) with an object (say, O). When O is destructed, O will notify C that it soon will no longer exist :( ... Later, when C feels it is the right time, C will let go of what belonged to O, namely D. If D can be any type of object, what's the best way for C to be able to execute "delete D;"? And what if D is an array of objects? My solution is to have D derive from a base class that C has knowledge of. When the time comes, C calls delete on a pointer to the base class. I've also considered storing void pointers and calling delete, but I found out that's undefined behavior and doesn't call D's destructor. I considered that templates could be a novel solution, but I couldn't work that idea out. Here's what I have so far for C, minus some details: // This class is C in the above description. There may be many instances of C. class Context { public: // D will inherit from this class class Data { public: virtual ~Data() {} }; Context(); ~Context(); // Associates an owner (O) with its data (D) void add(const void* owner, Data* data); // O calls this when he knows its the end (O's destructor). // All instances of C are now aware that O is gone and its time to get rid // of all associated instances of D. static void purge (const void* owner); // This is called periodically in the application. It checks whether // O has called purge, and calls "delete D;" void refresh(); // Side note: sometimes O needs access to D Data *get (const void *owner); private: // Used for mapping owners (O) to data (D) std::map _data; }; // Here's an example of O class Mesh { public: ~Mesh() { Context::purge(this); } void init(Context& c) const { Data* data = new Data; // GL initialization here c.add(this, new Data); } void render(Context& c) const { Data* data = c.get(this); } private: // And here's an example of D struct Data : public Context::Data { ~Data() { glDeleteBuffers(1, &vbo); glDeleteTextures(1, &texture); } GLint vbo; GLint texture; }; }; P.S. If you're familiar with computer graphics and VR, I'm creating a class that separates an object's per-context data (e.g. OpenGL VBO IDs) from its per-application data (e.g. an array of vertices) and frees the per-context data at the appropriate time (when the matching rendering context is current).

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  • Passing a Java object from one Struts action to another

    - by Bernhard V
    Hello! In one of my Struts action I've got the following code in a method: ... List<Object> retrievedListOfObjects = c.getListOfObjects(); return mapping.findForward("fw_view"); } fw_view leads to a new Struts action with another Struts form. Let's say this form has got among others the following field List<Object> listOfObjects; I now want to pass the retrievedListOfObjects from within the first Struts action to the form of the following Struts action. Is this possible without storing it in the session?

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  • Need to have access to my office PC from my laptop hopping through two VPN servers

    - by Andriy Yurchuk
    Here's the illustration of what I have ( http://clip2net.com/s/2fvar ): My office PC with it's IP of 123.45.e.f. Office VPN, which I will connect to from my VPS to get to my office PC. My own VPS, which I use as a: client to connect to office VPN (through vpnc, which creates a tun0 with 123.45.c.d IP address); VPN server my laptop can connect to (OpenVPN, tun1, 10.8.0.1) My own laptop I will use as a VPN client to connect to VPS OpenVPN server (will create a tun0 with 10.8.0.2 IP address) Now what I have to do is to allow my laptop to connect to at least my office PC, but preferably to all the 123.45.x.x subnet. Please advice on how to best configure OpenVPN, routing, iptables or whatever else is needed on my VPS so that my laptop could gain access to my office PC. P.S. The reason I'm hopping through my VPS is that being connected to the office WiFi I cannot access my office PC and I cannot connect to office VPN (which is another way to access my office PC). The only way to access my PC from office WiFi I have is hopping though an outside network.

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  • How to run Jquery constructor from own function?

    - by Invidian
    I need to create a function which will returning jQuery.Color object and i have no idea how to do it. Here is code example function newcolor () { var obj = new $.Color( 'rgb(0,0,0)' ); return obj;} var foo = newcolor(); foo.red(); Edit: My full code: function my (element,a,b,c){ //class my this.target = $(elem); this.new_color = function (a,b,c) { return new $.Color( 'rgb('+a+','+b+','+c+')'); } this.base_color = new_color (a,b,c); this.colorize = function () ( this.target.css({ background-color: new_color }); } var div = new My($('foo'),0,0,0); div.new_color(255,255,255); div.colorize(); My goal is to create class which can hold jquery element and operate on it. Now I'm stuck on returning $.Color().

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  • What is the "owning side" in an ORM mapping?

    - by Yousui
    Hi guys, I'm new to JPA. Now I have a question that what exactly is the owning side mean? I only have a rough idea of it. Can someone give me an explanation with some mapping examples(one to many, one to one, many to one) please? Great thanks. ps, the following text is excerpt from the decription of @OneToOne in java EE 6 documentation. You can see the concept owning side in it. Defines a single-valued association to another entity that has one-to-one multiplicity. It is not normally necessary to specify the associated target entity explicitly since it can usually be inferred from the type of the object being referenced. If the relationship is bidirectional, the non-owning side must use the mappedBy element of the OneToOne annotation to specify the relationship field or property of the owning side.

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  • grouping two sites under domain and sub domain

    - by Dave
    I have 2 websites a main website hosted at fasthosts and an e-commerce website hosted at Vidahost. I want to combine both websites under the same domain set. Main site would be www.mydomain.com Store site would be shop.mydomain.com I want to keep the directory path showing on the shop subdomain so what was previously www.mystore.com/product/hat would become shop.mydomain.com/product/hat How can I accomplish this, have already created the subdomain on fasthosts and setup web forwarding to the store but the directory paths do not show.

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  • CORBA Naming Service returns incorrect location of a registered object

    - by dave-keiture
    Hi experts, I have a simple setup with several objects registered at orbd. Remote client initializes connection to the ORB and tries to resolve a reference to the Naming Serice (IDL:omg.org/CosNaming/NamingContextExt:1.0). So far it's all fine - ORB returns giop.iiop.host/giop.iiop.port pair. When reference to the Naming Service is resolved, client tries to resolve_str() one of the registered objects. This time, Naming Service returns completely different pair giop.iiop.host/giop.iiop.port for the object (not the host/port of a Naming Service) - I don't know anything about them. When client tries to call a method on a resolved object, it fails, as the host/port pair is not configured in the firewall. Could you please explain, why it's happening? Thanks in advance!

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