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• Silverlight Binding to TranslateX

  - by Peanut

  I have a simple winphone7 application, but I think this would apply to any silverlight. Basically I have an ellipse and I would like to move it with the translate X and Y properties. Here is my attempt: <Ellipse Fill="#FFF4F4F5" Margin="0,0,-3,-3" Stroke="Black" RenderTransformOrigin="0.5,0.5" > <Ellipse.RenderTransform> <CompositeTransform TranslateY="{Binding Y}" TranslateX="{Binding X}"/> </Ellipse.RenderTransform> </Ellipse> I am pretty sure the Binding is set correctly; The problem is it gives me this error when I run the application: 2260 An error has occurred. [Line: 4 Position: 33] which is a XAML error. The error goes away when I comment out the composittransform line. Can anyone point me in a right direction? If you need more code let me know, i'll post more up. Thanks

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• Code to apply expression tree directly to List

  - by Gamma Vega

  Is there a method call in Linq that will apply a expression tree directly on a List<V>? For instance, if I have a expression tree that is built on Order type, and i have a collection of List<Order> items on which i need to apply this expression. I am looking something similar to: class OrderListStore : IQueryable<V>, <other interfaces required to implement custom linq provider> { List<Order> orders; public Expression Expression { get { return Expression.Constant(this); } } IEnumerator<V> IEnumerable<V>.GetEnumerator() { //Here I need to have a method that will take the existing expression //and directly apply on list something like this .. Expression.Translate(orders); } } Any help in this regard is highly appreciated.

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• HBase schema help

  - by Jody Powlette

  Coming from a SQL Server background, I'm a newbie with regard to HBase, but the technology looks to be a good fit for what we're doing and the cost is definitely right! I need to maintain a list of log entries which normally I would create in an RDBS as: create table Log ( UserID int, SiteID int, Page varchar(50), Date smalldatetime ) where one user may have 0 or 1000 rows in this simple table. Typical queries would be to find all the rows for one user or all the rows for one user on one site. How does this translate into a "map" in HBase where there is no "row key" AND the same (SiteID,Page) may appear many times. My first thought is that UserID is a row key, but I still don't understand "column families" and the other terminology well enough to understand how to setup the table to hold this data where the one UserID can have many (SiteID,Page,Date) "rows". Any direction is appreciated!

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• USB interface barcode scanners

  - by Nimbuz

  Not exactly a programming question, but close. I'll try my luck anyway. The keyboard wedge barcode scanner inserts the translation device between the reader and the keyboard. Data sent through a wedge appears as if it was typed into the computer, while the keyboard itself remains fully functional. Because a computer using a keyboard wedge can't tell the difference between data that is entered by a scanning device, or data that is entered by keyboard typing, a wedge can be used to easily add barcode reading capability to an existing computer without modifying software applications. I'd like to know if all USB interface barcode scanners automatically translate digital signals from a barcode reader into keyboard strokes for a applications just like wedge or is USB different from wedge? Many thanks

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• Safari extension - Too many injected scripts responding to message

  - by Philipp

  Hi, I am trying to code a safari extension similar to Bubble Translate for Chrome. when you click a button on the toolbar, it automatically translates the text currently selected to the language of your choice using the Google language API. I use the following injected script to get the highlighted text and display the result (as an alert for the time being): http://pastebin.com/bYVuQAmp I use the following global script to call the injected script if neccessary: hxxp://pastebin.com/VHaAKM5a The problem I have is the following: The script does not just get injected into the main page but also into ads and similar stuff that is embedded into the page. Due to that, the selected text gets translated multiple times because all the embedded scripts in one page respond to the message. How can I make sure that the script is injected only into the right page or only the right page responds? Thank you, Philipp

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• Mimicking basic fcntl or SetHandleInformation call in .Net

  - by Tristan

  Tornado enables win32 support by faking Python's fcntl function using SetHandleInformation, which is available via ctypes on Windows. After some other small fixes, this actually works using IronPython on Windows as well (sadly, IronPython is five times slower). I'd like to get Tornado working on any CLI platform, such using Mono on OSX or Linux. Is there a managed, cross-platform, .Net approach that can fake fcntl? Here's the win32 code from Tornado: SetHandleInformation = ctypes.windll.kernel32.SetHandleInformation SetHandleInformation.argtypes = (ctypes.wintypes.HANDLE, ctypes.wintypes.DWORD, ctypes.wintypes.DWORD) SetHandleInformation.restype = ctypes.wintypes.BOOL HANDLE_FLAG_INHERIT = 0x00000001 F_GETFD = 1 F_SETFD = 2 F_GETFL = 3 F_SETFL = 4 FD_CLOEXEC = 1 os.O_NONBLOCK = 2048 FIONBIO = 126 def fcntl(fd, op, arg=0): if op == F_GETFD or op == F_GETFL: return 0 elif op == F_SETFD: # Check that the flag is CLOEXEC and translate if arg == FD_CLOEXEC: fd = int(fd) success = SetHandleInformation(fd, HANDLE_FLAG_INHERIT, arg) if not success: raise ctypes.GetLastError() else: raise ValueError("Unsupported arg") else: raise ValueError("Unsupported op")

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• Get MAC address from Jetty HTTPServletRequest

  - by Chris Thompson

  Hi all, Does anybody know if there is a way to get the sender's MAC address from an HTTPServletRequest in Jetty? (Note: by sender, I mean immediate sender aka the last hop before my server). If there isn't a direct way, does anybody know a way to translate an IP address to a MAC address in Java? Other note: I completely realize that MAC addresses do not leave the local subnet, and that's the intended functionality. I know this seems like an odd question, but trust me, I know what I'm doing :-) If you're curious, I'd be happy to explain why I want this. Thanks, Chris

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• Java ByteBuffer to VB .NET

  - by user1797258

  I have this java code : ByteBuffer p = ByteBuffer.allocate(packet.length - 10 + 14); p.order(ByteOrder.LITTLE_ENDIAN); p.putInt(packet.length); p.putInt(packet.request_id); p.putInt(packet.type); p.put(packet.paylod); p.put((byte) 0); p.put((byte) 0); And i want to translate it to VB .NET I started with this : Dim p(packet.length - 10 + 14) As Byte But after i dont know how to put these variables in the right way

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• bash tips needed for understanding how to escape characters in command-line

  - by Jesper Rønn-Jensen

  My knowledge of commandline bash is missing on a particular area: I constantly forget how to properly escape characters. Today I wanted to echo this string into a file: #!/bin/env bash python -m SimpleHTTPServer echo "#!/bin/env bash\npython -m SimpleHTTPServer" server.sh && chmod +x server.sh -bash: !/bin/env: event not found That's right: Remember to escape ! or bash will think it's a special bash event command. But I can't get the escaping right! \! yields \! in the echoed string, and so does \\!. Furthermore, \n will not translate to a line break. Do you have some general tips that makes it easier for me to understand escaping rules? To be very precise, I'll accept an answer which tells me which characters I should escape on the bash command line? Including how to correctly output newline and exclamation mark in my example.

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• Microsoft T-SQL to Oracle PL/SQL translation

  - by Michael Prewecki

  I've worked with T-SQL for years but i've just moved to an organisation that is going to require writing some Oracle stuff, probably just simple CRUD operations at least until I find my feet. I'm not going to be migrating databases from one to the other simply interacting with existing Oracle databases from an Application Development perspective. Is there are tool or utility available to easily translate T-SQL into PL/SQL, a keyword mapper is the sort of thing I'm looking for. P.S. I'm too lazy to RTFM, besides it's not going to be a big part of my role so I just want something to get me up to speed a little faster.

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• Integrate forum software into existing Zend site

  - by mrbubblesort

  I've searched around and haven't really found anything on this, so maybe someone here has tried this before. My company already has a website built with Zend, and we'd like to add in a forum as well. All I really need is something that will work with postgresql and has foreign language support (particularly Japanese, but if worst comes to worst, I'll just translate it myself). phpBB fits all my needs though. Is it possible to get the two working together? Or is there another forum software that'll work with Zend? Or is it better to just build the thing from scratch? Thanks!

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• Windows Forms: Enable/Disable WS_CLIPCHILDREN

  - by Agnel Kurian

  How do I turn on/off the WS_CLIPCHILDREN window style in a Windows Forms parent control? I would like to display some text on top of the child control after it has painted. In my parent control, this is what I have: class Parent : public Control { void Parent::OnPaint(PaintEventArgs ^e){ Control::OnPaint(e); // parent draws here // some drawing should happen over the child windows // in other words, do not clip child window regions } }; On checking with Spy++ I find that the parent has the WS_CLIPCHILDREN window style enabled by default. What is the Windows Forms way to turn this off? Note: Sample code is in C++/CLI but I have tagged this C# for visibility... language is immaterial here. Feel free to translate the code to C#.

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• How do I parse boolean logic?

  - by d03boy

  I need to write a boolean logic parser which will translate the boolean logic language to a SQL WHERE clause. The order of the operands will always be in the correct order (with value on the right). Here is a relatively simple example. There could be nested parentheses and the use of NOT operators, etc. (CACOUNT=01 OR CACOUNT=02 OR CACOUNT=03 OR CACOUNT=05 OR CACOUNT=07 OR CACOUNT=09 OR CACOUNT=12 OR CACOUNT=13 OR CACOUNT=18) AND Q4=1 AND NAME=TIMOTHY Here is what the WHERE clause would resemble. WHERE ( EXISTS ( SELECT 1 FROM MyVerticalTable b WHERE b.Key=a.Key AND b.Key='CACOUNT' AND b.Value='01' ) )

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• Why this structure should have 48 bytes

  - by Maksee

  I tried to translate some new part of winuser.h header to Delphi. Why this structure is expected to be 48 bytes (only this size was accepted by the corresponding function). With 4-bytes boundary, it looks like it should have 40 bytes. typedef struct tagGESTUREINFO { UINT cbSize; DWORD dwFlags; DWORD dwID; HWND hwndTarget; POINTS ptsLocation; DWORD dwInstanceID; DWORD dwSequenceID; ULONGLONG ullArguments; UINT cbExtraArgs; } GESTUREINFO, *PGESTUREINFO; If it's related to 8-bytes boundary? if so is it relevant to any case where ULONGLONG appears structures? Thanks

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• How to access the jQuery event object in a Seaside callback

  - by Mef

  Basically, I want to translate the following into Seaside Smalltalk: $(".myDiv").bind('click', function(e) { console.log(e); }); Besides that I don't want to console.log the event, but access it in my ajax callback. The most promising approach seemed to be something like html div onClick: (html jQuery ajax callback: [:v | self halt] value: (???); with: 'Foo'. But I couldn't find any way to access the event that caused the callback. Intuitively, I would try html jQuery this event for the ??? part, but the Seaside jQuery wrapper doesn't know any message that comes close to event. Any help is appreciated. There has to be away to access the event data...

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• Convet long/lat to pixel x/y on a given picure.

  - by kalininew

  I have a city "map" (for example - Moscow). She in accuracy repeats the contours the given city in google maps (that is it is copied from google maps and it is a little processed, but the sense remained the same). Also I have object co-ordinates in a city (in co-ordinates of google). Problem: how to translate google co-ordinates to the co-ordinates of my picture (that is in pixels on OX and OY on a picture). That is I receive google-co-ordinates and it is necessary for me to draw this point on my picture. I know that on small scales (for example on city scales) it to make simply enough (it is necessary to learn what google-co-ordinates has one of picture corners, then to learn "price" of one pixel in google-co-ordinates on a picture on axes OX and OY separately). But on the big scales (country scale) "price" of one pixel will be not a constant, and will vary strongly enough and the method described above cannot be applied. How to solve a problem on country scales?

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• How to implement a left outer join in the Entity Framework.

  - by user206736

  I have the following SQL query:- select distinct * from dbo.Profiles profiles left join ProfileSettings pSet on pSet.ProfileKey = profiles.ProfileKey left join PlatformIdentities pId on pId.ProfileKey = profiles.Profilekey I need to convert it to a LinqToEntities expression. I have tried the following:- from profiles in _dbContext.ProfileSet let leftOuter = (from pSet in _dbContext.ProfileSettingSet select new { pSet.isInternal }).FirstOrDefault() select new { profiles.ProfileKey, Internal = leftOuter.isInternal, profiles.FirstName, profiles.LastName, profiles.EmailAddress, profiles.DateCreated, profiles.LastLoggedIn, }; The above query works fine because I haven't considered the third table "PlatformIdentities". Single left outer join works with what I have done above. How do I include PlatformIdentities (the 3rd table) ? I basically want to translate the SQL query I specified at the beginning of this post (which gives me exactly what I need) in to LinqToEntities. Thanks

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• SQL Server Compact 'Data Directory' macro in Connection String - more info needed

  - by codeulike

  So, as described on this msdn page, when you define a Connection String for SQL Server Compact 3.5, you can use the "Data Directory" macro, like this: quote from this msdn page: Data Directory Support SQL Server Compact 3.5 now supports the Data Directory macro. This means that if you add the string |DataDirectory| (enclosed in pipe symbols) to a file path, it will resolve to the path of the database. For example, consider the connection string: "Data Source= c:\program files\MyApp\Mydb.sdf" When using Data Directory, you can instead use the following connection string: "Data Source = |DataDirectory|\Mydb.sdf" For more information, see How to: Deploy a SQL Server Compact 3.5 Database with an Application. However, the 'for more information' link on msdn doesn't actually give any more information. So my question is: How does the |Data Directory| macro translate at run time? For WinForm apps, it seems to just give the location of the executable. Or is it more complicated than that?

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• Getting keyboard size from user info in Swift

  - by user3746428

  I have been trying to add some code to move my view up when the keyboard appears, however I am having issues trying to translate the Objective C examples into Swift. I have made some progress but I am stuck on one particular line. These are the two tutorials/questions I have been following: How to move content of UIViewController upwards as Keypad appears using Swift http://www.ioscreator.com/tutorials/move-view-when-keyboard-appears Here is the code I currently have: override func viewWillAppear(animated: Bool) { NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillShow:", name: UIKeyboardWillShowNotification, object: nil) NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillHide:", name: UIKeyboardWillHideNotification, object: nil) } override func viewWillDisappear(animated: Bool) { NSNotificationCenter.defaultCenter().removeObserver(self) } func keyboardWillShow(notification: NSNotification) { var keyboardSize = notification.userInfo(valueForKey(UIKeyboardFrameBeginUserInfoKey)) UIEdgeInsets(top: 0, left: 0, bottom: keyboardSize.height, right: 0) let frame = self.budgetEntryView.frame frame.origin.y = frame.origin.y - keyboardSize self.budgetEntryView.frame = frame } func keyboardWillHide(notification: NSNotification) { // } At the moment I am getting an error on this line: var keyboardSize = notification.userInfo(valueForKey(UIKeyboardFrameBeginUserInfoKey)) If someone could let me know what this line of code should be, I should manage to figure out the rest myself.

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• Python Vector Class

  - by sfjedi

  I'm coming from a C# background where this stuff is super easy—trying to translate into Python for Maya. There's gotta' be a better way to do this. Basically, I'm looking to create a Vector class that will simply have x, y and z coordinates, but it would be ideal if this class returned a tuple with all 3 coordinates and if you could edit the values of this tuple through x, y and z properties, somehow. This is what I have so far, but there must be a better way to do this than using an exec statement, right? I hate using exec statements. class Vector(object): '''Creates a Maya vector/triple, having x, y and z coordinates as float values''' def __init__(self, x=0, y=0, z=0): self.x, self.y, self.z = x, y, z def attrsetter(attr): def set_float(self, value): setattr(self, attr, float(value)) return set_float for xyz in 'xyz': exec("%s = property(fget=attrgetter('_%s'), fset=attrsetter('_%s'))" % (xyz, xyz, xyz))

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• Reading ASCII numbers using "D" instead of "E" for scientific notation using C

  - by Arrieta

  Hello, I have a list of numbers which looks like this: 1.234D+1 or 1.234D-02. I want to read the file using C. The function atof will merely ignore the D and translate only the mantissa. The function fscanf will not accept the format '%10.6e' because it expects an E instead of a D in the exponent. When I ran into this problem in Python, I have up and merely used a string substitution before converting from string to float. But in C, I am sure there must be another way. So, how would you read a file with numbers using D instead of E for scientific notation? Notice that I do not mean how to read the strings themselves, but rather how to convert them to floats. Thanks.

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• 2D Gaming - How to reflect a ball off the bat?

  - by sid

  Hi there I am pretty new to XNA & game dev and am stuck at ball reflection. My ball is reflecting once it hits the bat, but only in one angle, no matter which angle the bat is at. Here's the code: if (BallRect.Intersects(BatRect)) { Vector2 NormBallVelocity = Ball.velocity; NormBallVelocity.Normalize(); NormBallVelocity = Vector2.Reflect(Ball.velocity, NormBallVelocity); Ball.velocity = NormBallVelocity; } The ball is retracting its way back. How do I make it look like the ball is reflecting off the bat? I have seen other posts but they are on 3D front I am too new to translate it to 2D terms... Thanks Sid

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• Pentium Assembly Code Question

  - by leon

  Hi I am new to Pentium assembly programming. Could you check if I am doing the translation of C to assembly correctly? Condition: 32-bit addresses, 32 bit integers and 16 bit characters. char[5] vowels="aeiou"; Translate: vowels db "aeoiu" ; or should it be "vowels dw "aeoiu" ? How to access vowels[p]? Is it byte[vowels+p*2]? (since characters are 16 bit? ) Many thanks

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• Asp.net TreeView control - maximum number of nodes

  - by mas_oz2k1

  I have a treeView control in ASP.NET page that will be loaded with up to 12,000 nodes in different levels. For example: Node 1 Node 1.1 … Node 1.400 Node 1.400.1 … Node 1.400.6400 Node 2 Node 3 Node 4 According to this link: http://msdn.microsoft.com/en-us/library/ms529261.aspx the node limit is 1000. Is this correct or is it dependent on available memory(please specify value)? Assuming it is correct. is there any way to split the 4600 child nodes in say in chunks of 300 hundred? I am thinking that if dummy nodes are used (previous /next navigation) to navigate the chunks will easy the load of the html page. Sample code in C# will be greatly appreciated. (Or VB.NET if you can not translate it to C#)

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• How can I "best fit" an arbitrary cairo (pycairo) path?

  - by Daniel Straight

  It seems like given the information in stroke_extents() and the translate(x, y) and scale(x, y) functions, I should be able to take any arbitrary cairo (I'm using pycairo) path and "best fit" it. In other words, center it and expand it to fill the available space. Before drawing the path, I have scaled the canvas such that the origin is the lower left corner, up is y+, right is x+, and the height and width are both 1. Given these conditions, this code seems to correctly scale the path: # cr is the canvas extents = cr.stroke_extents() x_size = abs(extents[0]) + abs(extents[2]) y_size = abs(extents[1]) + abs(extents[3]) cr.scale(1.0 / x_size, 1.0 / y_size) I cannot for the life of me figure out the translating though. Is there a simpler approach? How can I "best fit" a cairo path on its canvas? Please ask for clarification if anything is unclear in this question.

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