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  • Summing up spreadsheet data when a column contains “#N/A”

    - by Doris
    I am using Goggle Spreadsheet to work up some historical stock data and I use a Google function (=googlefinance=…) to import the historical closing prices for a stock, then I work with that data further. But, in that list of data generated from the =googlefinance=… function, one of the amounts comes up as #N/A. I don’t know why, but it happens for various symbols that I have tried. When I use a max function on the array, which includes the N/A line, the max function does not come up with anything but an N/A, so the N/A throws off any further functions. I thought I’d create a second column to the right of the imported data in which I can give it an IF function, something like, If ((A1 <0), "0", A1), with the expectation that it would return 0 if cell A1 is the N/A, and the cell value if it is not N/A. However, this still returns N/A. I also tried an IS BLANK function but that resulted in the same NA. Does anyone have any suggestions for a workaround to eliminate the N/A from an array of numbers that I am trying to work with?

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  • In WebBrowser control get Silverlight Canvas

    - by darren
    I have a webbrowser control that loads an html page which contains a silverlight object. I want to use the webbrowser control to get the silverlight canvas so that I can pass it to a WriteableBitmap() object. The silverlight is being loaded into a div called SilverlightHostControl and I am trying to get it like this in C#: object element = webBrowser.Document.GetElementById("SilverlightControlHost"); This returns a {System.Windows.Forms.HtmlElement} which contains the silverlight object but I don't know how to get the Silverlight object so I can use it the WriteableBitmap() object.

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  • Best distributed version control system?

    - by afsharm
    I have been using SourceSafe and Subversion for years, but recently decided to choose a distributed version control system (or decentralized source control management) like Git, Mercurial or Bazaar or any other thing. So what is best of them? I'm a Windows/Visual Studio user.

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  • C# - WebBrowser control seems to cache screenshots

    - by Justin
    Hey, I'm using the WebBrowser control in an ASP.NET MVC 2 app (don't judge, I'm doing it in an admin section only to be used by me), here's the code: public static class Screenshot { private static string _url; private static int _width; private static byte[] _bytes; public static byte[] Get(string url) { // This method gets a screenshot of the webpage // rendered at its full size (height and width) return Get(url, 50); } public static byte[] Get(string url, int width) { //set properties. _url = url; _width = width; //start screen scraper. var webBrowseThread = new Thread(new ThreadStart(TakeScreenshot)); webBrowseThread.SetApartmentState(ApartmentState.STA); webBrowseThread.Start(); //check every second if it got the screenshot yet. //i know, the thread sleep is terrible, but it's the secure section, don't judge... int numChecks = 20; for (int k = 0; k < numChecks; k++) { Thread.Sleep(1000); if (_bytes != null) { return _bytes; } } return null; } private static void TakeScreenshot() { try { //load the webpage into a WebBrowser control. using (WebBrowser wb = new WebBrowser()) { wb.ScrollBarsEnabled = false; wb.ScriptErrorsSuppressed = true; wb.Navigate(_url); while (wb.ReadyState != WebBrowserReadyState.Complete) { Application.DoEvents(); } //set the size of the WebBrowser control. //take Screenshot of the web pages full width. wb.Width = wb.Document.Body.ScrollRectangle.Width; //take Screenshot of the web pages full height. wb.Height = wb.Document.Body.ScrollRectangle.Height; //get a Bitmap representation of the webpage as it's rendered in the WebBrowser control. var bitmap = new Bitmap(wb.Width, wb.Height); wb.DrawToBitmap(bitmap, new Rectangle(0, 0, wb.Width, wb.Height)); //resize. var height = _width * (bitmap.Height / bitmap.Width); var thumbnail = bitmap.GetThumbnailImage(_width, height, null, IntPtr.Zero); //convert to byte array. var ms = new MemoryStream(); thumbnail.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg); _bytes = ms.ToArray(); } } catch(Exception exc) {//TODO: why did screenshot fail? string message = exc.Message; } } This works fine for the first screenshot that I take, however if I try to take subsequent screenshots of different URL's, it saves screenshots of the first url for the new url, or sometimes it'll save the screenshot from 3 or 4 url's ago. I'm creating a new instance of WebBrowser for each screenshot and am disposing of it properly with the "using" block, any idea why it's behaving this way? Thanks, Justin

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  • Control.IsAccessible

    - by Gerhard
    I need to check if a c# WinForm Window (FORM Class) has been initialized and waiting for user events. But I could not find out how to manage that. Therefore I had the idea to set the Control.IsAccessible Flag of the Form to true, within the OnLoad Event of the Windows Form. My question is now, what is the Control.IsAccessible Flag origin intended for? Or is there an other solution to check if the Winform is initialized. Thanks for your help

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  • Show Visual Studio's Source Control Merge Wizard programmatically

    - by Mike
    Hi, I'm developing a Work item Custom Control and I need to use the standard VS's Merge Wizard for items in source control from my code to allow to user choose the target branch, resolve conflicts etc. I'm pretty sure it's possible in some way (even through the reflection), but I just can't find the proper class in any of VS client assemblies (Microsoft.TeamFoundation.VersionControl.Controls.dll, Microsoft.TeamFoundation.VersionControl.Client.dll). Any help will be appreciated. Best regards, Mike

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  • Webbrowser like Mozilla control for VB.NET question

    - by m.qayyum
    I want to use mozilla control in my application.. But when i use Webbrowsercontrol i just use webbrowser.navigate("http://www.google.com") but this commant is not working with mozilla control ant when we try to navigate to any web address it gives following exception. Exception has been thrown by the target of an invocation.

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  • Getting content with images into the Web Browser control without temporary files

    - by Revision17
    For a client server application, I'd like to display content with a web browser control with images without writing temporary files to the disk. I've tried using mht files via documentstream and documenttext, but the web browser control isn't smart enough to recognize mht files. I would use data URI images, however most computers this will be installed on use IE6 or 7. Are there any other options for this?

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  • C#/VB.Net Web Browser Control Replacement

    - by Lienau
    I've been working on a project that requires that I can go around webpages with different proxies, user-agents, and clear cookies. Now after looking all around the net, it looks like there are some solutions for each of these, but I can never get them working. I was wondering if there was a wrapper for this control that fixed all of these problems or even just a different control I could include. Thanks. Edit: I tried using HTTPWebRequest, it has everything I need -Javascript

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  • Good Source Control Hosting For Privacy?

    - by cam
    I'm looking for a very private source control/hosting solution. Short of hosting my own, and seeing as I'm the only collaborator, what is a good service for this? I'm using Git. The most important aspect is privacy. I don't want anyone to see my code, I'm simply using it for source control/backup. I will be the only developer.

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  • Access-Control-Request-Header: - x-requested-with

    - by Tom
    Hi Guys, I am building a widget for my users and trying to get it working however I keep running into a X-Domain issue with this header. httpfox gives me - NS_ERROR_DOM_BAD_URI - and on further investigation I find that its Access-Control-Request-Method: GET Access-Control-Request-Header: x-requested-with I am not sure why its not loading but I basically call a script and then I am trying to grab some html to load it but it gets blocked with the above headers. How can I get around this prob ?

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  • TDWI World Conference Features Oracle and Big Data

    - by Mandy Ho
    Oracle is a Gold Sponsor at this year's TDWI World Conference Series, held at the Manchester Grand Hyatt in San Diego, California - July 31 to Aug 1. The theme of this event is Big Data Tipping Point: BI Strategies in the Era of Big Data. The conference features an educational look at how data is now being generated so quickly that organizations across all industries need new technologies to stay ahead - to understand customer behavior, detect fraud, improve processes and accelerate performance. Attendees will hear how the internet, social media and streaming data are fundamentally changing business intelligence and data warehousing. Big data is reaching critical mass - the tipping point. Oracle will be conducting the following Evening Workshop. To reserve your space, call 1.800.820.5592 ext 10775. Title...:    Integrating Big Data into Your Data Center (or A Big Data Reference Architecture) Date.:    Wed., August 1, 2012, at 7:00 p.m Venue:: Manchester Grand Hyatt, San Diego, Room Weblogs, Social Media, smart meters, senors and other devices generate high volumes of low density information that isn't readily accessible in enterprise data warehouses and business intelligence applications today. But, this data can have relevant business value, especially when analyzed alongside traditional information sources. In this session, we will outline a reference architecture for big data that will help you maximize the value of your big data implementation. You will learn: The key technologies in a big architecture, and their specific use case The integration point of the various technologies and how they fit into your existing IT environment How effectively leverage analytical sandboxes for data discovery and agile development of data driven solutions   At the end of this session you will understand the reference architecture and have the tools to implement this architecture at your company. Presenter: Jean-Pierre Dijcks, Senior Principal Product Manager Don't miss our booth and the chance to meet with our Big data experts on the exhibition floor at booth #306. 

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  • How do you encode Algebraic Data Types in a C#- or Java-like language?

    - by Jörg W Mittag
    There are some problems which are easily solved by Algebraic Data Types, for example a List type can be very succinctly expressed as: data ConsList a = Empty | ConsCell a (ConsList a) consmap f Empty = Empty consmap f (ConsCell a b) = ConsCell (f a) (consmap f b) l = ConsCell 1 (ConsCell 2 (ConsCell 3 Empty)) consmap (+1) l This particular example is in Haskell, but it would be similar in other languages with native support for Algebraic Data Types. It turns out that there is an obvious mapping to OO-style subtyping: the datatype becomes an abstract base class and every data constructor becomes a concrete subclass. Here's an example in Scala: sealed abstract class ConsList[+T] { def map[U](f: T => U): ConsList[U] } object Empty extends ConsList[Nothing] { override def map[U](f: Nothing => U) = this } final class ConsCell[T](first: T, rest: ConsList[T]) extends ConsList[T] { override def map[U](f: T => U) = new ConsCell(f(first), rest.map(f)) } val l = (new ConsCell(1, new ConsCell(2, new ConsCell(3, Empty))) l.map(1+) The only thing needed beyond naive subclassing is a way to seal classes, i.e. a way to make it impossible to add subclasses to a hierarchy. How would you approach this problem in a language like C# or Java? The two stumbling blocks I found when trying to use Algebraic Data Types in C# were: I couldn't figure out what the bottom type is called in C# (i.e. I couldn't figure out what to put into class Empty : ConsList< ??? >) I couldn't figure out a way to seal ConsList so that no subclasses can be added to the hierarchy What would be the most idiomatic way to implement Algebraic Data Types in C# and/or Java? Or, if it isn't possible, what would be the idiomatic replacement?

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  • Why is my ServiceOperation method missing from my WCF Data Services client proxy code?

    - by Kev
    I have a simple WCF Data Services service and I want to expose a Service Operation as follows: [System.ServiceModel.ServiceBehavior(IncludeExceptionDetailInFaults = true)] public class ConfigurationData : DataService<ProductRepository> { // This method is called only once to initialize service-wide policies. public static void InitializeService(IDataServiceConfiguration config) { config.SetEntitySetAccessRule("*", EntitySetRights.ReadMultiple | EntitySetRights.ReadSingle); config.SetServiceOperationAccessRule("*", ServiceOperationRights.All); config.UseVerboseErrors = true; } // This operation isn't getting generated client side [WebGet] public IQueryable<Product> GetProducts() { // Simple example for testing return (new ProductRepository()).Product; } Why isn't the GetProducts method visible when I add the service reference on the client?

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  • How to Convert multiple sets of Data going from left to right to top to bottom the Pythonic way?

    - by ThinkCode
    Following is a sample of sets of contacts for each company going from left to right. ID Company ContactFirst1 ContactLast1 Title1 Email1 ContactFirst2 ContactLast2 Title2 Email2 1 ABC John Doe CEO [email protected] Steve Bern CIO [email protected] How do I get them to go top to bottom as shown? ID Company Contactfirst ContactLast Title Email 1 ABC John Doe CEO [email protected] 1 ABC Steve Bern CIO [email protected] I am hoping there is a Pythonic way of solving this task. Any pointers or samples are really appreciated! p.s : In the actual file, there are 10 sets of contacts going from left to right and there are few thousand such records. It is a CSV file and I loaded into MySQL to manipulate the data.

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  • How to add data manually in core data entity

    - by pankaj
    Hi I am working on core data for the first time. I have just created an entity and attributes for that entity. I want to add some data inside the entity(u can say i want to add data in a table), earlier i when i was using sqlite, i would add data using terminal. But here in core data i am not able to find a place where i can manually add data. I just want to add data in entity and display it in a UITableView. I have gone through the the documentation of core data but it does not explain how to add data manually although it explains how i can add it programmiticaly but i dont need to do it programically. I want to do it manually. Thanks in advance

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  • How do I set default values on new properties for existing entities after light weight core data migration?

    - by Moritz
    I've successfully completed light weight migration on my core data model. My custom entity Vehicle received a new property 'tirePressure' which is an optional property of type double with the default value 0.00. When 'old' Vehicles are fetched from the store (Vehicles that were created before the migration took place) the value for their 'tirePressure' property is nil. (Is that expected behavior?) So I thought: "No problem, I'll just do this in the Vehicle class:" - (void)awakeFromFetch { [super awakeFromFetch]; if (nil == self.tirePressure) { [self willChangeValueForKey:@"tirePressure"]; self.tirePressure = [NSNumber numberWithDouble:0.0]; [self didChangeValueForKey:@"tirePressure"]; } } Since "change processing is explicitly disabled around" awakeFromFetch I thought the calls to willChangeValueForKey and didChangeValueForKey would mark 'tirePresure' as dirty. But they don't. Every time these Vehicles are fetched from the store 'tirePressure' continues to be nil despite having saved the context.

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