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  • In .NET, what thread will Events be handled in?

    - by Ben
    I have attempted to implement a producer/consumer pattern in c#. I have a consumer thread that monitors a shared queue, and a producer thread that places items onto the shared queue. The producer thread is subscribed to receive data...that is, it has an event handler, and just sits around and waits for an OnData event to fire (the data is being sent from a 3rd party api). When it gets the data, it sticks it on the queue so the consumer can handle it. When the OnData event does fire in the producer, I had expected it to be handled by my producer thread. But that doesn't seem to be what is happening. The OnData event seems as if it's being handled on a new thread instead! Is this how .net always works...events are handled on their own thread? Can I control what thread will handle events when they're raised? What if hundreds of events are raised near-simultaneously...would each have its own thread?

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  • Using NSPredicate to filter on both Core attribute and entity

    - by Ben Thompson
    I have two entities in core data (call them entityOne and entityTwo). I have a entityOne<---entityTwo relationship between them. I am now trying to code an NSPredicate to fetch entityTwo objects on the following basis: Fetch entityTwo objects that have a relationship with a specified entityOne object. Filter out those entityTwo objects which have no value for one of their attributes. I am best doing both of these in an NSPredicate or is there a better way? I am trying the following: NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(attribute <> "") AND (relationship == entityOne"]; [request setPredicate:predicate]; Any pointers on coding great fully received.

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  • How do I design a web service (microsoft) that can be consumed by multiple end points?

    - by Ben McCormack
    My company is planning to implement a solution in multiple applications that will help to validate mailing addresses at the point of data entry. We're using UPS's Extended Address Validation (XAV) web service API to validate the addresses. Our current plan is to build a .NET web service that can be used to communicate between our applications and the UPS API. We have applications in VB6, classic ASP, and .NET 2.0, so we'd like to implement a solution that can be easily consumed by each of these programming environments. What are our (Microsoft) options for designing a web service that can be consumed by multiple clients? In particular, is there a way to design a single web service that can respond with JSON (in case we want to validate our web page using javascript) in addition to XML? I'm new to designing web services and want to make sure we consider all of our options. I've heard terms like asmx, WCF, OData, etc., but I don't know which frameworks will support what we're trying to do and where to start.

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  • Getting Stored Procedure Information from .Net

    - by Ben
    Hi, I am trying to get some data relevant to a stored procedure (or funtion) back from a database using .Net. The first thing I need to be able to do, is get the stored proc from the database and turn it into string format. The information I need is: The return set of columns, tables used within the SP, Stored Procedures called from the SP. The only way of doing this at the moment that i can think of, is though parsing the text and looking for keyword matches. Is there a better way of doing this? Any ideas? Thanks.

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  • Giant online image gallery - How do I avoid OutOfMemoryError?

    - by Ben L.
    For anyone who's wondering, the gallery is http://www.spore.com/sporepedia. My app uses the Spore API to get the 100 newest creations, then displays them in a GridView. The text data about the creations is easy to store, but the images present a problem. As far as I know, I can either keep the images in a Hashtable or grab them every time they are viewed. Neither of these will work - the Hashtable quickly presents an OutOfMemoryError, and the constant reloading causes a lot of load on the server and a lot of lag on the client. Is there a better way to store the images?

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  • In Birt Reports - Displaying the most common string value in group.

    - by Ben
    For this example data: Index, State, Food 1, CA, Hamburger 2, NY, Lettuce 3, CA, Cheese 4, NY, Lettuce 5, NY, Cheese 6, AR, Cheese I would like to group by State and show the most common food for each state. So the result for the example should be: State, Popular Food CA, Hamburger NY, Lettuce AR, Cheese The problem is I can't find an aggregation that would return the most common string. There is the 'mode' function but it only works on integers. Am I missing Something? Thanks!

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  • Can I use Visual Studio 2010 and not upgrade to .NET Framework 4.0?

    - by Ben Mills
    I have many Visual Studio 2008 web projects targeted at the .NET Framework 3.5. I want to start using Visual Studio 2010, but the .NET Framework 4.0 isn't very well supported by web hosting companies just yet. It seems to make sense to stick with the .NET Framework 3.5 for now. If I open my projects in Visual Studio 2010 and leave them targeted at the .NET Framework 3.5, am I going to have problems?

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  • How to change the coordinate of a point that is inside a GraphicsPath?

    - by Ben
    Is there anyway to change the coordinates of some of the points within a GraphicsPath object while leaving the other points where they are? The GraphicsPath object that gets passed into my method will contain a mixture of polygons and lines. My method would want to look something like: void UpdateGraphicsPath(GraphicsPath gPath, RectangleF regionToBeChanged, PointF delta) { // Find the points in gPath that are inside regionToBeChanged // and move them by delta. // gPath.PathPoints[i].X += delta.X; // Compiles but doesn't work } GraphicsPath.PathPoints seems to be readonly, so does GraphicsPath.PathData.Points. So I am wondering if this is even possible. Perhaps generating a new GraphicsPath object with an updated set of points? How can I know if a point is part of a line or a polygon? If anyone has any suggestions then I would be grateful.

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  • How would I find voluntary programming work?

    - by Ben
    While I look for a job, I'd like to do something useful with my time. I have a feeling there must be schools or charities or other worthy organisations that could use some of my time, but I've no idea how to go about finding them. Is there a marketplace for this kind of thing? I live in the UK.

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  • A good UI design for rating in .Net

    - by Ben
    Hi, im trying to add a "rating" system to an existing form (i.e 1 star, 2 Star or poor, average,good,excellent etc). Does anyone know of a way to achieve this that is aesthetically pleasing with good UX either in .Net or a free 3rd party control? Thanks

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  • Halting Django's dev server via page request?

    - by Ben Blank
    I'm looking at writing a portable, light-weight Python app. As the "GUI toolkit" I'm most familiar with — by a wide margin! — is HTML/CSS/JS, I thought to use Django as a framework for the project, using its built-in "development server" (manage.py runserver). I've been banging on a proof-of-concept for a couple hours and the only real problem I've encountered so far is shutting down the server once the user has finished using the app. Ideally, I'd like there to be a link on the app's pages which shuts down the server and closes the page, but nothing I see in the Django docs suggests this is possible. Can this be done? For that matter, is this a reasonable approach for writing a small, portable GUI tool?

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  • Mdi Children Changed in .Net

    - by Ben
    Hi Is there a simple way of tracking the change of an Mdi's children i.e. when they are created and closed, something like an event OnMdiChildListChanged (I realise this doesn't actually exist). I am also aware that I could have a method within my Mdi that handles the creation of child forms and logs the state of them or even create an Interface that defines that a child form has a "NotifyParent" method that is then called on close of the form, but i was wondering if there was any built in events that i could plumb into? Thanks

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  • PHP + jQuery - undefined index: , but it still posts successfully?

    - by Ben Bernards
    When inserting a record to a database, the server returns an 'undefined index: category', error, but still posts the successfully... $('#button).click(function(){ var newvendor = $('#input_vendor).val(); newplantcode = $('#input_plantcode).val(); newcategory = $('#input_category).val(); $.post("php/addSite.php", {vendor: newvendor, plant_code: newplantcode, category: newcategory}, // <--- Error on this line, for some reason... function(result){ console.log("server returned : " + result); [ RELOAD THE PAGE ] }

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  • missing plot title in ggplot2

    - by Ben Mazzotta
    How can I create a plot title in ggplot2? Am I making a silly syntax error? The ggplot2 docs indicate that labs(title = 'foo') should work, but I can only get the arguments x='foo' and y='foo' to work with labs(). Neither ggtitle() nor title() worked either. Here is an example. x <- rnorm(10,10,1) y <- rnorm(10,20,2) xy.df <- data.frame(x,y) qplot(x,y, data=xy.df, geom='point', color=x*y) + labs(title = "New Plot Title", x='Some Data', y='Some Other Data')

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  • Missing tables on Scaffold Dynamic Data page

    - by Ben Amada
    I created a Linq-to-SQL DBML for the first time. I dragged and dropped all my tables over to the designer. The tables all appear in the designer.cs file. In Global.asax, I also have model.RegisterContext() with the ScaffoldAllTables = true option. The routes are also setup. I can pull up the Scaffolding page, but there's at least one table that is missing that I'm trying to get to show up. This missing table has a relationship with a child table that references it. The child table appears. When viewing data for the child table, the column that references the missing/parent table shows the numeric PK int value, rather than showing the "name". So instead of showing "Cars" it shows 1, and instead of showing "Planes" it shows 2, etc. There's another table in the DB that has the same type of structure as the missing table, and it is correctly appearing in the scaffolded tables. For this missing table, I've tried explicitly adding the ScaffoldTable attribute to no avail. Does anyone know what would cause a table like this to not appear in the list Scaffolded tables? Thanks very much.

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  • jQuery code works in Firebug, but not on its own

    - by Ben
    I'm having quite the brainbuster of an issue right now. I am trying to change a link's hash tag at the end from "respond" to "comments" with jQuery. I have a simple script that should do this, however it does not work. The link does not change. However, Firebug shows no errors and when I run the code in Firebug's console, it works just as I intend. Why doesn't this work on its own? Does anybody have a solution, I'm at my wits edge with this one. (function ($) { $(document).ready(function() { $("a[href$='respond']").each(function() { $(this).attr("href", $(this).attr('href').replace("respond", "comments")); }); }); })(jQuery.noConflict()); Thanks so much, I know this might be a pain to test but I'm really thankful.

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  • applying paddingRight to flex grid column not to grid header

    - by Ben
    Whenever I add paddingRight to a column in the flex grid, it adds the padding to the header as well. Is anyone familiar with how I can add paddingRight just to the column and not to the header? Below is the column code where I was specifying the padding. <mx:DataGridColumn width="60" headerText="Type" dataField="Grade" headerStyleName="headerLeft" textAlign="left" draggable="false" resizable="false" headerRenderer="GridHeaderRenderer" paddingRight="5"/>

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  • VB.Net Split A Group Of Text

    - by Ben
    I am looking to split up multiple lines of text to single them out, for example: Url/Host:ftp://server.com/1 Login:Admin1 Password:Password1 Url/Host:ftp://server.com/2 Login:Admin2 Password:Password2 Url/Host:ftp://server.com/3 Login:Admin3 Password:Password3 How can I split each section into a different textbox, so that section one would be put into TextBox1.Text on its own: Url/Host:ftp://server.com/1 Login:Admin1 Password:Password1 Thanks in advance :)!

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  • Returning new base class when the parent class shared pointer is the return type

    - by Ben Dol
    Can you have a parent class shared pointer return type of a function and then return a new child class without it being a shared pointer? I'm not sure how shared pointers work in these situations, do they act like a regular pointer? Here is my example: BaseEventPtr Actions::getEvent(const std::string& nodeName) { if(asLowerCaseString(nodeName) == "action") return new ActionEvent(&m_interface); return nullptr; } ActionEvent is the subclass of BaseEvent in this situation. Cheers!

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  • Regular expression match, extracting only wanted segments of string

    - by Ben Carey
    I am trying to extract three segments from a string. As I am not particularly good with regular expressions, I think what I have done could probably be done better... I would like to extract the bold parts of the following string: SOMETEXT: ANYTHING_HERE (Old=ANYTHING_HERE, New=ANYTHING_HERE) Some examples could be: ABC: Some_Field (Old=,New=123) ABC: Some_Field (Old=ABCde,New=1234) ABC: Some_Field (Old=Hello World,New=Bye Bye World) So the above would return the following matches: $matches[0] = 'Some_Field'; $matches[1] = ''; $matches[2] = '123'; So far I have the following code: preg_match_all('/^([a-z]*\:(\s?)+)(.+)(\s?)+\(old=(.+)\,(\s?)+new=(.+)\)/i',$string,$matches); The issue with the above is that it returns a match for each separate segment of the string. I do not know how to ensure the string is the correct format using a regular expression without catching and storing the match if that makes sense? So, my question, if not already clear, how I can retrieve just the segments that I want from the above string?

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  • Git - will the file moves be detected?

    - by Ben Aston
    I performed some modifications on a branch (A). I then decided to create a brand new branch (B) based on the state of my existing working copy and commit and push to that. There were a number of files that had been moved during my earlier refactoring, and hence were now not included in version control having been moved directly in the filesystem. By accident I did not add these files to git before committing and pushing to the new branch (B). If I now add these files and commit and push, will Git be able to detect the file move operations?

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