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  • Why does select SCOPE_IDENTITY() return a decimal instead of an integer?

    - by Earlz
    So I have a table with an identity column as the primary key, so it is an integer. So, why does SCOPE_IDENTITY() always return a decimal value instead of an int to my C# application? This is really annoying since decimal values will not implicitly convert to integers in C#, which means I now have to rewrite a bunch of stuff and have a lot of helper methods because I use SQL Server and Postgres, which Postgres does return an integer for the equivalent function.. Why does SCOPE_IDENTITY() not just return a plain integer? Are there people out there that commonly use decimal/non-identity values for primary keys?

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  • Webbrowser control: auto fill textfields

    - by Khou
    I would like my custom browser to auto fill in a form when it is completely loaded Ok so inside private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { } Ive inserted the following statements webBrowser1.Document.GetElementById("FirstName").SetAttribute("value", "John"); webBrowser1.Document.GetElementById("LastName").SetAttribute("value", "Smith"); // etc..etc.. I noticed that "webBrowser1_DocumentCompleted" only is loaded one time?? How do i make my browser auto fill in a form when the document has finish loading, and auto fill the values to the define values if they have been changed by the end user.

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  • iPhone StoreKit - invalid product id's

    - by Achim
    I'm trying to test the in App purchase within the sandbox environment. In order to test the code I a) created a In App Purchase Test User account under 'Manage Users' in iTunes Connect b) created some in app purchase products under 'Manage Your In App Purchases'. I used numeric values and alpha-numeric values for the Product ID's. c) Loaded the app onto the iPhone, went to Settings-Store and logged out of the regular store and into the under a) created test account d) set a breakpoint in the (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response callback All the submitted Product ID's are in the response.invalidProductIdentifiers category. When submitting the request I use either the Product ID's used under b) directly or I tried to prefix them with the Bundle ID: NSString *id2 = @"com.super.duper.8"; NSSet *productList = [NSSet setWithObjects:id2, @"8", nil]; SKProductsRequest *request= [[SKProductsRequest alloc] initWithProductIdentifiers:productList]; Am I missing something obvious? Any help is appreciated. Achim

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  • Yelp Like Adjective Rating System

    - by clifgray
    I am building a website that has users list their outdoor adventures (skydiving, surfing, base jumping, etc) and the other people can comment on them. I want to have a rating system like Yelp which has "Useful, Funny, or Cool" but with different adjectives. I have thought of a few such as Daring, Adventurous, and Unique but I wanted to get some feedback on what a few other good adjectives would be. Also does anyone have experience with other such systems or advice for better systems? Primarily I just want the user to have somewhat more descriptive voting options than u and down or 1 though 5.

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  • Why allow concatenation of string literals?

    - by Caspin
    I recently got bit by a subtle bug. char ** int2str = { "zero", // 0 "one", // 1 "two" // 2 "three",// 3 nullptr }; assert( values[1] == "one"_s ); // passes assert( values[2] == "two"_s ); // fails If you have godlike code review powers you'll notice I forgot the , after "two". After the considerable effort to find that bug I've got to ask why would anyone ever want this behavior? I can see how this might be useful for macro magic, but then why is this a "feature" in a modern language like python? Have you ever used string literal concatenation in production code?

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  • Azure &ndash; Part 6 &ndash; Blob Storage Service

    - by Shaun
    When migrate your application onto the Azure one of the biggest concern would be the external files. In the original way we understood and ensure which machine and folder our application (website or web service) is located in. So that we can use the MapPath or some other methods to read and write the external files for example the images, text files or the xml files, etc. But things have been changed when we deploy them on Azure. Azure is not a server, or a single machine, it’s a set of virtual server machine running under the Azure OS. And even worse, your application might be moved between thses machines. So it’s impossible to read or write the external files on Azure. In order to resolve this issue the Windows Azure provides another storage serviec – Blob, for us. Different to the table service, the blob serivce is to be used to store text and binary data rather than the structured data. It provides two types of blobs: Block Blobs and Page Blobs. Block Blobs are optimized for streaming. They are comprised of blocks, each of which is identified by a block ID and each block can be a maximum of 4 MB in size. Page Blobs are are optimized for random read/write operations and provide the ability to write to a range of bytes in a blob. They are a collection of pages. The maximum size for a page blob is 1 TB.   In the managed library the Azure SDK allows us to communicate with the blobs through these classes CloudBlobClient, CloudBlobContainer, CloudBlockBlob and the CloudPageBlob. Similar with the table service managed library, the CloudBlobClient allows us to reach the blob service by passing our storage account information and also responsible for creating the blob container is not exist. Then from the CloudBlobContainer we can save or load the block blobs and page blobs into the CloudBlockBlob and the CloudPageBlob classes.   Let’s improve our exmaple in the previous posts – add a service method allows the user to upload the logo image. In the server side I created a method name UploadLogo with 2 parameters: email and image. Then I created the storage account from the config file. I also add the validation to ensure that the email passed in is valid. 1: var storageAccount = CloudStorageAccount.FromConfigurationSetting("DataConnectionString"); 2: var accountContext = new DynamicDataContext<Account>(storageAccount); 3:  4: // validation 5: var accountNumber = accountContext.Load() 6: .Where(a => a.Email == email) 7: .ToList() 8: .Count; 9: if (accountNumber <= 0) 10: { 11: throw new ApplicationException(string.Format("Cannot find the account with the email {0}.", email)); 12: } Then there are three steps for saving the image into the blob service. First alike the table service I created the container with a unique name and create it if it’s not exist. 1: // create the blob container for account logos if not exist 2: CloudBlobClient blobStorage = storageAccount.CreateCloudBlobClient(); 3: CloudBlobContainer container = blobStorage.GetContainerReference("account-logo"); 4: container.CreateIfNotExist(); Then, since in this example I will just send the blob access URL back to the client so I need to open the read permission on that container. 1: // configure blob container for public access 2: BlobContainerPermissions permissions = container.GetPermissions(); 3: permissions.PublicAccess = BlobContainerPublicAccessType.Container; 4: container.SetPermissions(permissions); And at the end I combine the blob resource name from the input file name and Guid, and then save it to the block blob by using the UploadByteArray method. Finally I returned the URL of this blob back to the client side. 1: // save the blob into the blob service 2: string uniqueBlobName = string.Format("{0}_{1}.jpg", email, Guid.NewGuid().ToString()); 3: CloudBlockBlob blob = container.GetBlockBlobReference(uniqueBlobName); 4: blob.UploadByteArray(image); 5:  6: return blob.Uri.ToString(); Let’s update a bit on the client side application and see the result. Here I just use my simple console application to let the user input the email and the file name of the image. If it’s OK it will show the URL of the blob on the server side so that we can see it through the web browser. Then we can see the logo I’ve just uploaded through the URL here. You may notice that the blob URL was based on the container name and the blob unique name. In the document of the Azure SDK there’s a page for the rule of naming them, but I think the simple rule would be – they must be valid as an URL address. So that you cannot name the container with dot or slash as it will break the ADO.Data Service routing rule. For exmaple if you named the blob container as Account.Logo then it will throw an exception says 400 Bad Request.   Summary In this short entity I covered the simple usage of the blob service to save the images onto Azure. Since the Azure platform does not support the file system we have to migrate our code for reading/writing files to the blob service before deploy it to Azure. In order to reducing this effort Microsoft provided a new approch named Drive, which allows us read and write the NTFS files just likes what we did before. It’s built up on the blob serivce but more properly for files accessing. I will discuss more about it in the next post.   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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  • VMware sort VMware Go Pro sa solution de virtualisation Cloud pour PME, passerelle vers VMware vSphere

    VMware sort VMware Go Pro Sa solution de virtualisation Cloud pour PME, passerelle vers VMware vSphere VMware vient d'annoncer la sortie de sa solution de virtualisation Cloud pour les PME : VMware Go Pro. VMware Go Pro a pour principal objectif de faciliter les efforts de virtualisation des petites et moyennes entreprises en leur proposant un outil ergonomique, qui simplifie la gestion des systèmes d'information et qui veut améliorer la productivité. L'outil intègre une console centrale unique, pour fédérer et simplifier l'administration des infrastructures physiques et virtuelles. Une console qui permet de « libérer les équipes des tâches récurrentes afin de se consacr...

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  • BOOST program_options: parsing multiple argument list.

    - by Arman
    Hello, I would like to pass the multiple arguments with positive or negative values. Is it possible to parse it? Currently I have a following initialization: vector<int> IDlist; namespace po = boost::program_options; po::options_description commands("Allowed options"); commands.add_options() ("IDlist",po::value< vector<int> >(&IDlist)->multitoken(), "Which IDs to trace: ex. --IDlist=0 1 200 -2") ("help","print help") ; and I would like to call: ./test_ids.x --IDlist=0 1 200 -2 unknown option -2 So,the program_options assumes that I am passing -2 as an another option. Can I configure the program_options in such a way that it can accept the negative integer values? Thanks Arman.

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  • Protecting offline IRM rights and the error "Unable to Connect to Offline database"

    - by Simon Thorpe
    One of the most common problems I get asked about Oracle IRM is in relation to the error message "Unable to Connect to Offline database". This error message is a result of how Oracle IRM is protecting the cached rights on the local machine and if that cache has become invalid in anyway, this error is thrown. Offline rights and security First we need to understand how Oracle IRM handles offline use. The way it is implemented is one of the main reasons why Oracle IRM is the leading document security solution and demonstrates our methodology to ensure that solutions address both security and usability and puts the balance of these two in your control. Each classification has a set of predefined roles that the manager of the classification can assign to users. Each role has an offline period which determines the amount of time a user can access content without having to communicate with the IRM server. By default for the context model, which is the classification system that ships out of the box with Oracle IRM, the offline period for each role is 3 days. This is easily changed however and can be as low as under an hour to as long as years. It is also possible to switch off the ability to access content offline which can be useful when content is very sensitive and requires a tight leash. So when a user is online, transparently in the background, the Oracle IRM Desktop communicates with the server and updates the users rights and offline periods. This transparent synchronization period is determined by the server and communicated to all IRM Desktops and allows for users rights to be kept up to date without their intervention. This allows us to support some very important scenarios which are key to a successful IRM solution. A user doesn't have to make any decision when going offline, they simply unplug their laptop and they already have their offline periods synchronized to the maximum values. Any solution that requires a user to make a decision at the point of going offline isn't going to work because people forget to do this and will therefore be unable to legitimately access their content offline. If your rights change to REMOVE your access to content, this also happens in the background. This is very useful when someone has an offline duration of a week and they happen to make a connection to the internet 3 days into that offline period, the Oracle IRM Desktop detects this online state and automatically updates all rights for the user. This means the business risk is reduced when setting long offline periods, because of the daily transparent sync, you can reflect changes as soon as the user is online. Of course, if they choose not to come online at all during that week offline period, you cannot effect change, but you take that risk in giving the 7 day offline period in the first place. If you are added to a NEW classification during the day, this will automatically be synchronized without the user even having to open a piece of content secured against that classification. This is very important, consider the scenario where a senior executive downloads all their email but doesn't open any of it. Disconnects the laptop and then gets on a plane. During the flight they attempt to open a document attached to a downloaded email which has been secured against an IRM classification the user was not even aware they had access to. Because their new role in this classification was automatically synchronized their experience is a good one and the document opens. More information on how the Oracle IRM classification model works can be found in this article by Martin Abrahams. So what about problems accessing the offline rights database? So onto the core issue... when these rights are cached to your machine they are stored in an encrypted database. The encryption of this offline database is keyed to the instance of the installation of the IRM Desktop and the Windows user account. Why? Well what you do not want to happen is for someone to get their rights for content and then copy these files across hundreds of other machines, therefore getting access to sensitive content across many environments. The IRM server has a setting which controls how many times you can cache these rights on unique machines. This is because people typically access IRM content on more than one computer. Their work desktop, a laptop and often a home computer. So Oracle IRM allows for the usability of caching rights on more than one computer whilst retaining strong security over this cache. So what happens if these files are corrupted in someway? That's when you will see the error, Unable to Connect to Offline database. The most common instance of seeing this is when you are using virtual machines and copy them from one computer to the next. The virtual machine software, VMWare Workstation for example, makes changes to the unique information of that virtual machine and as such invalidates the offline database. How do you solve the problem? Resolution is however simple. You just delete all of the offline database files on the machine and they will be recreated with working encryption when the Oracle IRM Desktop next starts. However this does mean that the IRM server will think you have your rights cached to more than one computer and you will need to rerequest your rights, even though you are only going to be accessing them on one. Because it still thinks the old cache is valid. So be aware, it is good practice to increase the server limit from the default of 1 to say 3 or 4. This is done using the Enterprise Manager instance of IRM. So to delete these offline files I have a simple .bat file you can use; Download DeleteOfflineDBs.bat Note that this uses pskillto stop the irmBackground.exe from running. This is part of the IRM Desktop and holds open a lock to the offline database. Either kill this from task manager or use pskillas part of the script.

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  • Create Awesome Map-Based Wallpapers for Your Desktop with ‘Map –> Image’

    - by Asian Angel
    Are you tired of using the same old types of wallpapers on your desktop? Then add something fresh and unique to your desktop with custom-created map wallpapers from ‘Map – Image’. When you first visit the website it will show the default location of San Francisco (home of the developers). To get started simply enter your location in the search blank in the upper left corner and click the Go Button. Your chosen location will appear in a basic black and white format as shown here. 6 Start Menu Replacements for Windows 8 What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8

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  • Reading a plist utf-8 value as utf-16

    - by ennuikiller
    I'm working on an iphone app that needs to display superscripts and subscripts. I'm using a picker to read in data from a plist but the unicode values aren't being displayed corretly in the pickerview. Subscripts and superscripts are not being recognized. I'm assuming this is due to the encoding of the plist as utf-8, so the question is how do a convert a plist string encoding from utf-8 to utf-16 ? Just a little more elaboration: If I do this it displays properly at least in a textfield: NSString *equation = @"x\u00B2 + y\u00B2 = z\u00B2" However if I define the same string in a plist and try to read it in and assign it to a string and display it on a pickerview it just displays the the encoding and not the superscripts. @Matt: thanks for your suggestion the unicode is being escaped that is \u00B2 = \u00B2. Googling for "escaped values in plists" returned no useful results, and I haven't been able to use the keyboard cmd-ctrl-shift-+ to work. Any further suggestions would be greatly appreciated!!

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  • Kile doesn’t brings Okular to front

    - by Tobi
    As @user49890 in Emacs-AUCTeX-Okular I got an equal problem with Kile and Okular. In configured both for SyncTeX and it works fine when Okular is closed and Kile quickbuilds the PDF, then Okular is opened in front of Kile. But if Okular is already opened with the window behind Kile’s window it stys hidden when Kile says [ForwardPDF] test.pdf (okular) Is this a bug or did I made a wrong setting (I’m using the predefined configurations of Okular and Kile, though). Edit The problem remains wether I use Okular’s --unique option or not. And Using ViewPDF instead of ForwardPDF makes no difference too.

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  • What output and recording ports does the Java Sound API find on your computer?

    - by Dave Carpeneto
    Hi all - I'm working with the Java Sound API, and it turns out if I want to adjust recording volumes I need to model the hardware that the OS exposes to Java. Turns out there's a lot of variety in what's presented. Because of this I'm humbly asking that anyone able to help me run the following on their computer and post back the results so that I can get an idea of what's out there. A thanks in advance to anyone that can assist :-) import javax.sound.sampled.*; public class SoundAudit { public static void main(String[] args) { try { System.out.println("OS: "+System.getProperty("os.name")+" "+ System.getProperty("os.version")+"/"+ System.getProperty("os.arch")+"\nJava: "+ System.getProperty("java.version")+" ("+ System.getProperty("java.vendor")+")\n"); for (Mixer.Info thisMixerInfo : AudioSystem.getMixerInfo()) { System.out.println("Mixer: "+thisMixerInfo.getDescription()+ " ["+thisMixerInfo.getName()+"]"); Mixer thisMixer = AudioSystem.getMixer(thisMixerInfo); for (Line.Info thisLineInfo:thisMixer.getSourceLineInfo()) { if (thisLineInfo.getLineClass().getName().equals( "javax.sound.sampled.Port")) { Line thisLine = thisMixer.getLine(thisLineInfo); thisLine.open(); System.out.println(" Source Port: " +thisLineInfo.toString()); for (Control thisControl : thisLine.getControls()) { System.out.println(AnalyzeControl(thisControl));} thisLine.close();}} for (Line.Info thisLineInfo:thisMixer.getTargetLineInfo()) { if (thisLineInfo.getLineClass().getName().equals( "javax.sound.sampled.Port")) { Line thisLine = thisMixer.getLine(thisLineInfo); thisLine.open(); System.out.println(" Target Port: " +thisLineInfo.toString()); for (Control thisControl : thisLine.getControls()) { System.out.println(AnalyzeControl(thisControl));} thisLine.close();}}} } catch (Exception e) {e.printStackTrace();}} public static String AnalyzeControl(Control thisControl) { String type = thisControl.getType().toString(); if (thisControl instanceof BooleanControl) { return " Control: "+type+" (boolean)"; } if (thisControl instanceof CompoundControl) { System.out.println(" Control: "+type+ " (compound - values below)"); String toReturn = ""; for (Control children: ((CompoundControl)thisControl).getMemberControls()) { toReturn+=" "+AnalyzeControl(children)+"\n";} return toReturn.substring(0, toReturn.length()-1);} if (thisControl instanceof EnumControl) { return " Control:"+type+" (enum: "+thisControl.toString()+")";} if (thisControl instanceof FloatControl) { return " Control: "+type+" (float: from "+ ((FloatControl) thisControl).getMinimum()+" to "+ ((FloatControl) thisControl).getMaximum()+")";} return " Control: unknown type";} } All the application does is print out a line about the OS, a line about the JVM, and a few lines about the hardware found that may pertain to recording hardware. For example on my PC at work I get the following: OS: Windows XP 5.1/x86 Java: 1.6.0_07 (Sun Microsystems Inc.) Mixer: Direct Audio Device: DirectSound Playback [Primary Sound Driver] Mixer: Direct Audio Device: DirectSound Playback [SoundMAX HD Audio] Mixer: Direct Audio Device: DirectSound Capture [Primary Sound Capture Driver] Mixer: Direct Audio Device: DirectSound Capture [SoundMAX HD Audio] Mixer: Software mixer and synthesizer [Java Sound Audio Engine] Mixer: Port Mixer [Port SoundMAX HD Audio] Source Port: MICROPHONE source port Control: Microphone (compound - values below) Control: Select (boolean) Control: Microphone Boost (boolean) Control: Front panel microphone (boolean) Control: Volume (float: from 0.0 to 1.0) Source Port: LINE_IN source port Control: Line In (compound - values below) Control: Select (boolean) Control: Volume (float: from 0.0 to 1.0) Control: Balance (float: from -1.0 to 1.0)

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  • System.Data.SQLite parameter issue

    - by CasperT
    I have the following code: try { //Create connection SQLiteConnection conn = DBConnection.OpenDB(); //Verify user input, normally you give dbType a size, but Text is an exception var uNavnParam = new SQLiteParameter("@uNavnParam", SqlDbType.Text) { Value = uNavn }; var bNavnParam = new SQLiteParameter("@bNavnParam", SqlDbType.Text) { Value = bNavn }; var passwdParam = new SQLiteParameter("@passwdParam", SqlDbType.Text) {Value = passwd}; var pc_idParam = new SQLiteParameter("@pc_idParam", SqlDbType.TinyInt) { Value = pc_id }; var noterParam = new SQLiteParameter("@noterParam", SqlDbType.Text) { Value = noter }; var licens_idParam = new SQLiteParameter("@licens_idParam", SqlDbType.TinyInt) { Value = licens_id }; var insertSQL = new SQLiteCommand("INSERT INTO Brugere (navn, brugernavn, password, pc_id, noter, licens_id)" + "VALUES ('@uNameParam', '@bNavnParam', '@passwdParam', '@pc_idParam', '@noterParam', '@licens_idParam')", conn); insertSQL.Parameters.Add(uNavnParam); //replace paramenter with verified userinput insertSQL.Parameters.Add(bNavnParam); insertSQL.Parameters.Add(passwdParam); insertSQL.Parameters.Add(pc_idParam); insertSQL.Parameters.Add(noterParam); insertSQL.Parameters.Add(licens_idParam); insertSQL.ExecuteNonQuery(); //Execute query //Close connection DBConnection.CloseDB(conn); //Let the user know that it was changed succesfully this.Text = "Succes! Changed!"; } catch(SQLiteException e) { //Catch error MessageBox.Show(e.ToString(), "ALARM"); } It executes perfectly, but when I view my "brugere" table, it has inserted the values: '@uNameParam', '@bNavnParam', '@passwdParam', '@pc_idParam', '@noterParam', '@licens_idParam' literally. Instead of replacing them. I have tried making a breakpoint and checked the parameters, they do have the correct assigned values. So that is not the issue either. I have been tinkering with this a lot now, with no luck, can anyone help? Oh and for reference, here is the OpenDB method from the DBConnection class: public static SQLiteConnection OpenDB() { try { //Gets connectionstring from app.config const string myConnectString = "data source=data;"; var conn = new SQLiteConnection(myConnectString); conn.Open(); return conn; } catch (SQLiteException e) { MessageBox.Show(e.ToString(), "ALARM"); return null; } }

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  • Week 16: Integrate This - Introducing Oracle Enterprise Manager 11g

    - by sandra.haan
    Spring in New York City is a wonderful time of year, but if you're out walking around in Central Park it means you missed the most exciting thing happening in the city today -Oracle's announcement of the launch of Enterprise Manager 11g at the Guggenheim. You can catch-up on what you missed here and listen in as Judson talks about the partner opportunity with Enterprise Manager 11g: Learn how Oracle Enterprise Manager 11g can help you drive agility and efficiency through its unique, integrated IT management capabilities and check out the Enterprise Manager Knowledge Zone to get engaged with OPN. Learn more and get the full scoop from today's press release. Until the next time, The OPN Communications Team

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  • UnboundLocalError: local variable 'rows' referenced before assignment

    - by patrick
    i'm trying to make a database connection by an other script. But the script didn't work propperly. and if I do a 'print' on the rows then I get the value 'null' But if I use a 'select * from incidents' query then i get the result from the table incidents. import database rows = database.database("INSERT INTO incidents VALUES(3 ,'test_title1', 'test', TO_DATE('25-07-2012', 'DD-MM-YYYY'), CURRENT_TIMESTAMP, 'sector', 50, 60)") #print database.database() print rows database.py script: import psycopg2 import sys import logfile def database(query): logfile.log(20, 'database.py', 'Executing...') con = None try: con = psycopg2.connect(database='incidents', user='ipfit5', password='tester') cur = con.cursor() #print query cur.execute(query) rows = cur.fetchall() con.commit() #test row does work #cur.execute("INSERT INTO incidents VALUES(3 ,'test_titel1', 'test', TO_DATE('25-07-2012', 'DD-MM-YYYY'), CURRENT_TIMESTAMP, 'sector', 50, 60)") except: logfile.log(40, 'database.py', 'Er is iets mis gegaan') logfile.log(40, 'database.py', str(sys.exc_info())) finally: if con: con.close() return rows

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  • Java Compare Two Lists

    - by agazerboy
    Hi All, Thanks for stoping to help me :) I have a question, may be for some of you, it will be a basic question :) I have two lists ( not java lists, you can say two columns) For example **List 1** **Lists 2** milan hafil dingo iga elpha binga hafil mike meat dingo iga neeta.peeta What I want ! I want that it returns me that how many elements are same. For this example it should be 3 and it should return me similar values of both list and different values too. Should I use hashmap if yes then what method to get my result? Please help P.S: It is not a school assignment :) So if you just guide me it will be enough

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  • iphone compass tilt compensation

    - by m01d
    hi, has anybody already programmed a iphone compass heading tilt compensation? i have got some approaches, but some help or a better solution would be cool! FIRST i define a vector Ev, calculated out of the cross product of Gv and Hv. Gv is a gravity vector i build out of the accelerometer values and Hv is an heading vector built out the magnetometer values. Ev stands perpendicular on Gv and Hv, so it is heading to horizonatl East. SECOND i define a vector Rv, calculated out of the cross product Bv and Gv. Bv is my looking vector and it is defined as [0,0,-1]. Rv is perpendicular to Gv and Bv and shows always to the right. THIRD the angle between these two vectors, Ev and Rv, should be my corrected heading. to calculate the angle i build the dot product and thereof the arcos. phi = arcos ( Ev * Rv / |Ev| * |Rv| ) Theoretically it should work, but maybe i have to normalize the vectors?! Has anybody got a solution for this? Thanks, m01d

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  • Asp.NET MVC ActionFilter cannot get Form Submit data

    - by Goden
    I want to use custom action filter to manipulate parameters to one action. User inputs: 2 names in a form ; Action: actually needs to take 2 ids; Action Filter (onExecuting, will verify the input names and if valid, convert them into 2 ids and replace in the routedata) because i don't want to put validation logic in Action Controller. here's part of the code: Routing Info routes.MapRoute( "Default", // Route name "{controller}/{action}", // URL with parameters new { controller = "Home", action = "Index"} // Parameter defaults ); routes.MapRoute( "RelationshipResults", // Route Name "Relationship/{initPersonID}/{targetPersonID}", // URL with parameters new { controller = "Relationship", action = "Results" }); Form to submit (Create 2 input box and submit via jquery) <% using (Html.BeginForm("Results", "Relationship", FormMethod.Post, new { id = "formSearch" })) {% ... <td align="left"><%: MvcWeibookWeb.Properties.Resource.Home_InitPersonName%></td> <td align="right"> <%= Html.TextBox("initPersonName")%></td> <td rowspan="3" valign="top"> <div id="sinaIntro"> <%: MvcWeibookWeb.Properties.Resource.Home_SinaIntro %> <br /> <%: MvcWeibookWeb.Properties.Resource.Genearl_PromotionSina %> </div> </td> </tr> <tr> <td align="left" width="90px"><%: MvcWeibookWeb.Properties.Resource.Home_TargetPersonName%></td> <td align="right"><%= Html.TextBox("targetPersonName")%></td> </tr> <tr> <td colspan="2" align="right"> <a href="#" class="btn-HomeSearch" onclick="$('#formSearch').submit();"><%: MvcWeibookWeb.Properties.Resource.Home_Search%></a> </td> Action Filter public override void OnActionExecuting(ActionExecutingContext filterContext) { Sina.Searcher searcher = new Sina.Searcher(Sina.Processor.UserNetwork); String initPersonName, targetPersonName; // form submit names, we need to process them and convert them to IDs before it enters the real controller. initPersonName = filterContext.RouteData.Values["initPersonName"] as String; targetPersonName = filterContext.RouteData.Values["targetPersonName"] as String; // do sth to convert it to ids and replace Action/Controller [ValidationActionFilter] [HandleError] public ActionResult Results( Int64 initPersonName, Int64 targetPersonName) { ... My problem is: in the actionFilter, it never gets the 2 parameter "initPersonName" and "targetPersonName", the RouteData.Values don't contain these 2 keys... :(

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  • delta-dictionary/dictionary with revision awareness in python?

    - by shabbychef
    I am looking to create a dictionary with 'roll-back' capabilities in python. The dictionary would start with a revision number of 0, and the revision would be bumped up only by explicit method call. I do not need to delete keys, only add and update key,value pairs, and then roll back. I will never need to 'roll forward', that is, when rolling the dictionary back, all the newer revisions can be discarded, and I can start re-reving up again. thus I want behaviour like: >>> rr = rev_dictionary() >>> rr.rev 0 >>> rr["a"] = 17 >>> rr[('b',23)] = 'foo' >>> rr["a"] 17 >>> rr.rev 0 >>> rr.roll_rev() >>> rr.rev 1 >>> rr["a"] 17 >>> rr["a"] = 0 >>> rr["a"] 0 >>> rr[('b',23)] 'foo' >>> rr.roll_to(0) >>> rr.rev 0 >>> rr["a"] 17 >>> rr.roll_to(1) Exception ... Just to be clear, the state associated with a revision is the state of the dictionary just prior to the roll_rev() method call. thus if I can alter the value associated with a key several times 'within' a revision, and only have the last one remembered. I would like a fairly memory-efficient implementation of this: the memory usage should be proportional to the deltas. Thus simply having a list of copies of the dictionary will not scale for my problem. One should assume the keys are in the tens of thousands, and the revisions are in the hundreds of thousands. We can assume the values are immutable, but need not be numeric. For the case where the values are e.g. integers, there is a fairly straightforward implementation (have a list of dictionaries of the numerical delta from revision to revision). I am not sure how to turn this into the general form. Maybe bootstrap the integer version and add on an array of values? all help appreciated.

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  • (Fluent)NHibernate: Mapping an IDictionary<MappedClass, MyEnum>

    - by anthony
    I've found a number of posts about this but none seem to help me directly. Also there seems to be confusion about solutions working or not working during different stages of FluentNHibernate's development. I have the following classes: public class MappedClass { ... } public enum MyEnum { One, Two } public class Foo { ... public virtual IDictionary<MappedClass, MyEnum> Values { get; set; } } My questions are: Will I need a separate (third) table of MyEnum? How can I map the MyEnum type? Should I? What should Foo's mapping look like? I've tried mapping HasMany(x = x.Values).AsMap("MappedClass")... This results in: NHibernate.MappingException : Association references unmapped class: MyEnum

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  • Sharepoint Web Part OnPreRender PostBack Dynamic TextBoxes Not Accessible In Button Handler

    - by Matt
    I have a custom webpart which extends System.Web.UI.WebControls.WebPart and implements an EditorPart. I have all the static controls being added in the overridden CreateChildControls method as I know this makes them persistent across PostBacks. However, I have some TextBoxes being added in the overridden OnPreRender method because the actual TextBoxes that I add depend upon the data returned from a Web Service which I am calling in OnPreRender. The Web Service has to be called in OnPreRender because I need some of the Property values that are set in the EditorPart. If I build this logic into the CreateChildControls method, obviously the data is not available on first PostBack after an edit is applied because the PostBack events are restored after CreateChildControls. This means the page has to be posted twice before the data is refreshed and that is just cludgy. How can make these TextBoxes along with their entered text values persistent across PostBacks so that I can access them in the button handler? Thanks for any help, Matt

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  • Calling oracle stored procedure from Excel - VBA

    - by Ram
    I have to execute an Oracle stored procedure from vba (Excel) with around 38 input parameters. The stored procedure will insert some values in the destination table once that is executed. When it is executed through VBA the number of fields which is inserted is less than when it is executed directly from the backend (oracle). For example it is creating around 17 fields of records while executing directly from the back end. (I have created a wrapper class in the back-end and passing the same parameter values in the back-end.). It is creating around 15 fields of records while executing from the excel VBA in the destination table. Kindly let me know what could be the possible reasons for this.

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  • All articles with infinite scroll, or one per page for usability and SEO?

    - by Rana Prathap
    Imagine a hypothetical website with all user generated content of single page articles. Here are some ways to structuring such a website: Putting up more than one article in one page and creating an infinite scroll or a pager. The fact that the articles may not be on the same topic makes this a less search engine friendly way. Giving a unique page to each article and putting up a list of links/titles in the front page with or without a teaser and a thumbnail. This might make the home page look unprofessional. Keeping the front page clean, without direct links to internal pages. Which method would be a search engine friendly and user friendly way to do this?

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