layer groups - Page 104

localhost .htaccess not working?

- by diff

Now i install WordPress then BuddyPress, after the install buddypress i run the site, home page was run, when click the other page link the page was not working. show this error Not Found The requested URL /Repo/website/groups/ was not found on this server. Apache/2.2.17 (Ubuntu) Server at localhost Port 80 After then i check my local htaccess, here is all are ok, but why the problem is showing. Here is my local htaccess .. <Directory /> Options FollowSymLinks AllowOverride all </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride all Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory>

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Easy Method to Change Color on UI Elements

- by A13X

This isn't a language-specific thing as far as I'm concerned. I was wondering what may be a quick way to change the COLOR of a certain on-screen element such as a button and its associated text. I would assume there is a trick to making a graphics engine so maybe individuals pixels or groups of sprites can have their colors easily shifted. A lot of game interface buttons and such have this so you know when an event like a click has occurred. Any pseudo code would be helpful and I am working in Android (not XML fluff), but again, this probably is not a very specific question, just an inquiry on how to go about this.

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What videoconferencing platforms work best for distributed software development teams?

- by user11347

Today I had a religious experience: I participated in a videoconference using a high quality Polycom system. This made a huge difference in communication quality -- people that I had a terrible time understanding previously now sounded like Shakespeare. Seeing a high quality video image was enormously helpful. I asked operations how much the Polycom cost and they said that it cost $20K new and $4K off eBay. So this solution doesn't work for people who work from home or who work in offices but are in groups of 3 or fewer people. My budget for a videoconferencing system is a few hundred dollars per person. Skype is not nearly good enough. And I haven't seen a consumer webcam that is good enough either. Does such a solution exist? I'm looking to collaborate both with people who are close by (in the same city but not in the same room) and far away (on different continents).

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Samba: map domain group to local one

- by user285467

I have a problem with mapping pure domain group to one existing on UNIX system. When I map NT domain account by default samba picks local SID - one that can be acquired via the command; net getlocalsid Instead of SID that comes from domain; net getdomainsid This is the behavior that I do not understand. I can explicitly set the SID to the domain one. E.g.: net groupmap add sid=[DOMAIN SID]-[RID] ntgroup=[DOMAIN group] unixgroup=[UNIX group] type=l However the command getent group | grep 'DOMAIN group indicates this group to be domain one - GID created in accordance to RID backend in use, not the GID of 'UNIX group' as expected. Worth to mention I use the winbind. Strange thing is that I already have such mapping in place for other 'DOMAIN group2' that getent group reports with GID of local UNIX group with all members of the 'DOMAIN group2'. Now the question is how to populate such behavior for other of my groups???

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Random List of numbers in C

- by Ant

I have just started a C programming course and so far have only done the basics like printf, read a little on variables etc on the course book. The teacher has tasked us with writing a program that will take a value entered by the user, this will be the number of students in the class (25 at the moment but can be variable). It will then list the number of students randomly and place them in 3 columns. The purpose is to sort students into groups of 3 randomly, then display on the screen in columns. Now my question is not for the code that defeats the object of me attempting the exercise, but how to structure it. I can see that using an array can be used to display the list, but really after some pointers on how best to approach the problem in blocks, then I can attempt to program each block.

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DotNetNuke 5.3.0 Almost there

The 5.3.0 development cycle has been unlike any in our 7+ year history. In some respects this is good and in others not so much. As I explained in my Just Like Clockwork post, we are working hard to make monthly releases a habit and to have release schedules that are predictable. DotNetNuke 5.3.0 marks the first major release we have attempted since splitting our engineering group into feature development and maintenance groups. As always, doing anything for the first time can be challenging. The...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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Basic/research RTS engine/model

- by XTF

Does a basic/research RTS engine/model exist that can be used as a basis for further experimentation/research? I'd like to avoid reinventing the wheel if possible. I'm aware of Spring Engine and Stratagus, but those are real game engines and may not be the best to experiment with and learn from. Ideally the docs for the model would answer questions like: How exactly do units move? (constant velocity? constant acceleration? constant force?) How is pathfinding handled? Does every grid cell become an A* graph node (may be expensive)? Does it consider threats? How are groups handled? (w.r.t pathfinding and movement) How is combat handled? I'm mostly interested in the low-level model details (for now), not the graphics etc. I've read a lot of the other quesions (and answers/references) tagged RTS but I haven't found my answer yet.

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What personal milestones can you use to measure growth in your programming abilities?

- by GWLlosa

How can you determine objectively, over time, that you are getting any better at producing code? For example, I may sit here and feel that "I know now, and I use now, so I must be better." But this does not account for my own bias, or the fact that I may be getting better at a slower rate than intended, or I may actually suck at and not realize it. What methods are available for one to objectively rate one's own abilities? What about to objectively compare them to their peer groups?

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Border image on UIView

- by drunknbass

I want to have a UIView subclass that has a border image, but i dont want or care about this 'new' frame/bounds around the border image itself. What i wanted to do was just use drawRect and draw outside of the rect but all drawing is clipped and i dont see a way to not clip drawing outside of this context rect. So now i have added a sublayer to the views layer, set [self clipsToBounds] on the view and override setFrame to control my sublayers frame and always keep it at the proper size (spilling over the views frame by 40px) the problem with this is that setFrame on a uiview by default has no animation but seTFrame on a calayer does. i cant just disable the animations on the calayers setFrame because if i were to call setFrame on the uiview inside a uiview animation block the calayer would still have its animation disabled. the obvious solution is to look up the current animationDuration on the uiview animation and set a matching animation on the sublayer, but i dont know if this value is available. And even if it is, im afraid that calling an animation from within another animation is wrong. Unfortunately the best solution is to not use a calayer at all and just add a uiview as a subview and draw into that just like i am drawing into my layer, and hope that with autoresizingMask set to height and width that everything will 'just work'. Just seems like unnecessary overhead for such a simple task.

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how to change UITabbar selected color?

- by RAGOpoR

according to this post for now, Is apple will also reject this code? and how to implement what apple will approve? @interface UITabBar (ColorExtensions) - (void)recolorItemsWithColor:(UIColor *)color shadowColor:(UIColor *)shadowColor shadowOffset:(CGSize)shadowOffset shadowBlur:(CGFloat)shadowBlur; @end @interface UITabBarItem (Private) @property(retain, nonatomic) UIImage *selectedImage; - (void)_updateView; @end @implementation UITabBar (ColorExtensions) - (void)recolorItemsWithColor:(UIColor *)color shadowColor:(UIColor *)shadowColor shadowOffset:(CGSize)shadowOffset shadowBlur:(CGFloat)shadowBlur { CGColorRef cgColor = [color CGColor]; CGColorRef cgShadowColor = [shadowColor CGColor]; for (UITabBarItem *item in [self items]) if ([item respondsToSelector:@selector(selectedImage)] && [item respondsToSelector:@selector(setSelectedImage:)] && [item respondsToSelector:@selector(_updateView)]) { CGRect contextRect; contextRect.origin.x = 0.0f; contextRect.origin.y = 0.0f; contextRect.size = [[item selectedImage] size]; // Retrieve source image and begin image context UIImage *itemImage = [item image]; CGSize itemImageSize = [itemImage size]; CGPoint itemImagePosition; itemImagePosition.x = ceilf((contextRect.size.width - itemImageSize.width) / 2); itemImagePosition.y = ceilf((contextRect.size.height - itemImageSize.height) / 2); UIGraphicsBeginImageContext(contextRect.size); CGContextRef c = UIGraphicsGetCurrentContext(); // Setup shadow CGContextSetShadowWithColor(c, shadowOffset, shadowBlur, cgShadowColor); // Setup transparency layer and clip to mask CGContextBeginTransparencyLayer(c, NULL); CGContextScaleCTM(c, 1.0, -1.0); CGContextClipToMask(c, CGRectMake(itemImagePosition.x, -itemImagePosition.y, itemImageSize.width, -itemImageSize.height), [itemImage CGImage]); // Fill and end the transparency layer CGContextSetFillColorWithColor(c, cgColor); contextRect.size.height = -contextRect.size.height; CGContextFillRect(c, contextRect); CGContextEndTransparencyLayer(c); // Set selected image and end context [item setSelectedImage:UIGraphicsGetImageFromCurrentImageContext()]; UIGraphicsEndImageContext(); // Update the view [item _updateView]; } } @end

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Applying Test Driven Development to a tightly coupled architecture

- by Chris D

Hi all, I've recently been studying TDD, attended a conference and have dabbled in few tests and already I'm 100% sold, I absolutely love it TDD. As a result I've raised this with my seniors and they are prepared to give it a chance, so they have tasked me with coming up with a way to implement TDD in the development of our enterprise product. The problem is our system has evolved since the days of VB6 to .NET and implements alot of legacy technology and some far from best practice development techniques i.e. alot of business logic in the ASP.NET code behind and client script. The largest problem however is how our classes are tightly coupled with database access; properties, methods, constructors - usually has some database access in some form or another. We use an in-house data access code generator tool that creates sqlDataAdapters that gives us all the database access we could ever want, which helps us develop extremely quickly, however, classes in our business layer are very tightly coupled to this data layer - we aren't even close to implementing some form of repository design. This and the issues above have created me all sorts of problems. I have tried to develop some unit tests for some existing classes I've already written but the tests take ALOT longer to run since db access is required, not to mention since we use the MS Enterprise Caching framework I am forced to fake a httpcontext for my tests to run successfully which isn't practical. Also, I can't see how to use TDD to drive the design of any new classes I write since they have to be soo tightly coupled to the database ... help! Because of the architecture of the system it appears I can't implement TDD without some real hack which in my eyes just defeats the aim of TDD and the huge benefits that come with. Does anyone have any suggestions how I could implement TDD with the constraints I'm bound too? or do I need to push the repository design pattern down my seniors throats and tell them we either change our architecture/development methodology or forget about TDD altogether? :) Thanks

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How to populate a generic list of objects in C# from SQL database

- by developr

I am just learning ASP.NET c# and trying to incorporate best practices into my applications. Everything that I read says to layer my applications into DAL, BLL, UI, etc based on separation of concerns. Instead of passing datatables around, I am thinking about using custom objects so that I am loosely coupled to my data layer and can take advantage of intellisense in VS. I assume these objects would be considered DTOs? First, where do these objects reside in my layers? BLL, DAL, other? Second, when populating from SQL, should I loop through a data reader to populate the list or first fill a data table, then loop through the table to populate the list? I know you should close the database connection as soon as possible, but it seems like even more overhead to populate the data table and then loop through that for the list. Third, everything I see these days says use Linq2SQL. I am planning to learn Linq2SQL, but at this time I am working with a legacy database that doesn't have foreign keys setup and I do not have the ability to fix it atm. Also, I want to learn more about c# before I start getting into ORM solutions like nHibernate. At the same time I don't want to type out all the connection and SQL plumbing for every query. Is it ok to use the Enterprise DAAB for now?

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jerky animation using Core Animation

- by Paul from Boston

In my iPhone app, I am trying to get some red and white stripes that are scrolling across the screen to animate smoothly when the speed of the stripes gets high. In my app the user starts the animation and changes the scrolling speed by a finger swipe and changes the width of the stripes by a two finger pinch. Animation is stopped in response to a double tap. If the speed gets high or the stripes get narrow the animation is no longer smooth to the eye. The edges of the stripes seem to jump around. The animation is simple. I draw the stripes in a layer that's a bit larger than the screen. I then set up an animation that moves the layer position by exactly the distance from one red stripe to the next. The duration is set by the speed of the finger swipe and the repeat count is 1. When the animation stops the delegate checks a flag to see if the user wants to stop the scrolling. If not, the animation is restarted again for one cycle. Are there better ways of doing this so that the animation is smooth at high speeds or with narrow stripes? Thanks--

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Using LINQ to SQL in ASP.NET MVC2 project

- by mazhar

Well I am new to this ORM stuff. We have to create a large project. I read about LINQ to SQL. will it be appropriate to use it in the project of high risk. i found no problem with it personally but the thing is that there will be no going back once started.So i need some feedback from the ORM gurus here at the MSDN. Will entity framework will be better? (I am in doubt about LINK to SQL because I have read and heard negative feedback here and there) I will be using MVC2 as the framework. So please give the feedback about LINQ to SQL in this regard. Q2) Also I am a fan of stored procedure as they are precomputed and fasten up the thing and I have never worked without them.I know that LINQ to SQL support stored procedures but will it be feasible to give up stored procedure seeing the beautiful data access layer generated with little effort as we are also in a need of rapid development. Q3) If some changes to some fields required in the database in LINK to SQL how will the changes be accommodated in the data access layer.

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ASP.net DAL DatasSet and Table Adapter not in namespace - Northwind Tutorial

- by Alan

I've been attempting to walk through the "Creating a Data Access Layer" tutorial found http://www.asp.net/learn/data-access/tutorial-01-cs.aspx I create the DB connection, create the typed dataset and table adapter, specify the sql, etc. When I add the code to the presentation layer (in this case a page called AllProducts.aspx) I am unable to find the NorthwindTableAdapters.ProductsTableAdapter class. I tried to import the NorthwindTableAdapters namespace, but it is not showing up. Looking in the solution explorer Class View confirms that there is a Northwind class, but not the namespace I'm looking for. I've tried several online tutorials that all have essentially the same steps, and I'm getting the same results. Can anyone give me a push in the right direction? I'm getting error: Namespace or type specified in the Imports 'NorthwindTableAdapters' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. I think I might need to add a reference OR they may be creating a separate class and importing it into their main project. If that's the case, the tutorials do not mention this. SuppliersTest2.aspx.vb: Imports NorthwindTableAdapters Partial Class SuppliersTest2 Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim suppliersAdapter As New SuppliersTableAdapter GridView1.DataSource = suppliersAdapter.GetAllSuppliers() GridView1.DataBind() End Sub End Class

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Transform OpenGL coordinates to lower UIView coordinates

- by John Qualis

Hi, I am new to OpenGL over iPhone. I am developing an iPhone app similar to a barcode reader but with an extra OpenGL layer. The bottommost layer is UIImagePickerController, then I use UIView on top and draw a rectangle at certain co-ordinates on the iphone screen. So far everything is OK. Then I am trying to draw an OpenGL 3-D model in that rectangle. I am able to load a 3-D model in the iPhone based on this code here - http://iphonedevelopment.blogspot.com/2008/12/start-of-wavefront-obj-file-loader.html I am not able to transform the co-ordinates of the rectangle into OpenGL co-ordinates. Appreciate any help. Do I need to use a matrix to translate the currentPosition of the 3-D model so it is drawn within myRect? The code is given below.. Appreciate any help/pointers in this regards. John (void)drawView:(GLView*)view { static GLfloat rotation = 0.0; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); glColor4f(0.0, 0.5, 1.0, 1.0); // The coordinates of the rectangle are myRect.x, // myRect.y, myRect.width, myRect.height // Do I need a transform matrix here? //glOrthof(-160.0f, 160.0f, -240.0f, 240.0f, -1.0f, 1.0f); [plane drawSelf]; .... } -(void)setupView:(GLView*)view { const GLfloat zNear = 0.01, zFar = 1000.0, fieldOfView = 45.0; GLfloat size; glEnable(GL_DEPTH_TEST); glMatrixMode(GL_PROJECTION); //glMatrixMode(GL_MODELVIEW); size = zNear * tanf(DEGREES_TO_RADIANS(fieldOfView) / 2.0); CGRect rect = view.bounds; glFrustumf(-size, size, -size / (rect.size.width / rect.size.height), size / (rect.size.width / rect.size.height), zNear, zFar); glViewport(0, 0, rect.size.width, rect.size.height); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glClearColor(0.0f, 0.0f, 0.0f, 0.0f); }

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Blind down animation on CALayer using a mask

- by dgjones346

Hi there, I want to create a "blind down" effect on an image so the image "blinds down" and appears. Sort of like this JavaScript transition: http://wiki.github.com/madrobby/scriptaculous/effect-blinddown The mask is setup correctly because if I manually change it's position it hides and reveals the image behind it, but it doesn't animate! It just ends up in the animates final position and you never see it actual blind. Please help! Maybe this isn't the best way to achieve a blind down effect? // create a new layer CALayer *numberLayer = [[CALayer alloc] init]; // render the number "7" on the layer UIImage *image = [UIImage imageNamed:@"number-7.png"]; numberLayer.contents = (id) [image CGImage]; numberLayer.bounds = CGRectMake(0, 0, image.size.width, image.size.height); // width and height are 50 numberLayer.position = position; // create a new mask that is 50x50 the size of the image CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init]; CGMutablePathRef path = CGPathCreateMutable(); CGPathAddRect(path, nil, CGRectMake(0, 0, 50, 50)); [maskLayer setPath:path]; [maskLayer setFillColor:[[UIColor whiteColor] CGColor]]; [theLayer setMask:maskLayer]; [maskLayer setPosition:CGPointMake(0, 0)]; // place the mask over the image [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:3.0]; [maskLayer setPosition:CGPointMake(0, 50)]; // slide mask off the image // this should shift the blind away in an animation // but it doesn't animate [UIView commitAnimations]; [maskLayer release]; [boardLayer addSublayer:numberLayer]; [numberLayer release];

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Development process for an embedded project with significant hardware changes

- by pierr

I have a good idea about Agile development process but it seems it does not fit well with a embedded project with significant hardware changes. I will describe below what we are currently doing (Ad-hoc way, no defined process yet). The changes are divided into three categories and different processes are used for each of them: complete hardware change example : use a different video codec IP a) Study the new IP b) RTL/FPGA simulation c) Implement the legacy interface - go to b) d) Wait until hardware (tape out) is ready f) Test on the real hardware hardware improvement example : enhance the image display quality by improving the underlying algorithm a) RTL/FPGA simulation b) Wait until hardware and test on the hardware Minor change example : only change hardware register mapping a) Wait until hardware and test on the hardware The worry is it seems we don't have too much control and confidence about software maturity for the hardware changes as the bring-up schedule is always very tight and the customer desired a seamless change when updating to a new version of hardware. How did you manage this kind of hardware change? Did you solve that by a Hardware Abstraction Layer (HAL)? Did you have a automatic test for the HAL layer? How did you test when the hardware platform is not even ready? Do you have well-documented processes for this kind of change?

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Rhino Mocks, Dependency Injection, and Separation of Concerns

- by whatispunk

I am new to mocking and dependency injection and need some guidance. My application is using a typical N-Tier architecture where the BLL references the DAL, and the UI references the BLL but not the DAL. Pretty straight forward. Lets say, for example, I have the following classes: class MyDataAccess : IMyDataAccess {} class MyBusinessLogic {} Each exists in a separate assembly. I want to mock MyDataAccess in the tests for MyBusinessLogic. So I added a constructor to the MyBusinessLogic class to take an IMyDataAccess parameter for the dependency injection. But now when I try to create an instance of MyBusinessLogic on the UI layer it requires a reference to the DAL. I thought I could define a default constructor on MyBusinessLogic to set a default IMyDataAccess implementation, but not only does this seem like a codesmell it didn't actually solve the problem. I'd still have a public constructor with IMyDataAccess in the signature. So the UI layer still requires a reference to the DAL in order to compile. One possible solution I am toying with is to create an internal constructor for MyBusinessLogic with the IMyDataAccess parameter. Then I can use an Accessor from the test project to call the constructor. But there's still that smell. What is the common solution here. I must just be doing something wrong. How could I improve the architecture?

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Set UIViewController background to transparent

- by dbonneville

I'm calling a UIViewController from a button on the main view. I have set the alpha of the view to 50%. When the view animates in, I can see that it's transparent. As soon as the animation stops, it becomes opaque. In the xib, when I set opacity, it's sets the opacity over white. So if I set the color to black and the opacity to 50%, this is what I see when I click the button on the main interface to show the view: view slides up from bottom at 50% opacity. I can see the underlaying view through the transparent black nicely. when view stops animating, it become gray. it appears that a white color pops in the background of the view somehow, making the 50% opacity black over white turn gray. I can no longer see the underlaying layer. What I'm trying to do: show 100% white text on a 50% transparent black layer which sits over the view that called this view. How on earth do I do this? I tried a code method that sets the background color when the view is called, but it does exactly the same thing (with another try in there commented out with the same effect): - (IBAction)gotoCreed { Creed *creed = [[Creed alloc] initWithNibName:nil bundle:nil]; [self presentModalViewController:creed animated:YES]; self.view.backgroundColor = [UIColor colorWithHue:0.0 saturation:0.0 brightness:1.0 alpha:0.2]; //self.view.backgroundColor = [UIColor clearColor]; }

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Core Animation problem on iPhone

- by Mac

I'm new to iPhone development, and doing some experimentation with Core Animation. I've run into a small problem regarding the duration of the animation I'm attempting. Basically, Ive got a view with two subviews, and I'm trying to animate their opacity so that one fades in while the other fades out. Problem is, instead of a gradual fade in/out, the subviews simply switch instantly to/from full/zero opacity. I've tried to adjust the animation duration with CATransaction with no noticable effect. It's also not specific to animating opacity - animating position shows the same problem. The code I'm using (inside a method of the superview) follows: CALayer* oldLayer = ((UIView*) [[self subviews] objectAtIndex:0]).layer; CALayer* newLayer = ((UIView*) [[self subviews] objectAtIndex:1]).layer; [CATransaction begin]; [CATransaction setAnimationDuration:1.0f]; oldLayer.opacity = 0.0; newLayer.opacity = 1.0; [CATransaction commit]; Does anyone have an idea what the problem might be?

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running asp.net 3.5 and asp.net 2.0 in same site

- by cori

We're running ASP.Net 2.0 on our corporate web site, and I'd like to get it up to ASP.Net 3.5 as smoothly as possible. The project/solution architecture in VS 2005 is an ASP.Net 2.0 web project and an .Net 2.0 data access layer project which is used by the site code. Upon opening the projects in a new VS 2008 solution they seemed to be converted to .Net 3.5 with a minimum of fuss - they built correctly out of the box, deployed successfully, and seem to work just fine, which is exactly as I would expect given that .Net 2.0 and 3.5 share a common runtime. The major difference after the conversion is that the web.config file's referenced dlls are now the 3.5 versions. What I would like to do is to update the site piecemeal; as I make modifications to a given page send the 3.5 verson of that page over to our webserver and not update the whole site at once. In testing on our dev box this approach seems to be working fine - the site code is interacting with the .Net 3.5 data access layer without difficulty, a handful of pages are running 3.5 page-behind code (by this I mean that they're running assemblies built in VS 2008 - the site is using single-page assemblies for code behind), the 3.5 web.config is in place, and the bulk of the site is running code-behind assemblies built in VS2005. Everything looks great. Which makes me worried that I'm missing something. Is this architecture workable, or is there a problem lying is wait for m that I haven't considered?

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pointer being freed was not allocated. Complex malloc history help

- by Martin KS

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handling refrence to pointers/double pointers using SWIG [C++ to Java]

- by Siddu

My code has an interface like class IExample { ~IExample(); //pure virtual methods ...}; a class inheriting the interface like class CExample : public IExample { protected: CExample(); //implementation of pure virtual methods ... }; and a global function to create object of this class - createExample( IExample *& obj ) { obj = new CExample(); } ; Now, I am trying to get Java API wrapper using SWIG, the SWIG generated interface has a construcotr like - IExample(long cPtr, boolean cMemoryOwn) and global function becomes createExample(IExample obj ) The problem is when i do, IExample exObject = new IExample(LogFileLibraryJNI.new_plong(), true /*or false*/ ); createExample( exObject ); The createExample(...) API at C++ layer succesfully gets called, however, when call returns to Java layer, the cPtr (long) variable does not get updated. Ideally, this variable should contain address of CExample object. I read in documentation that typemaps can be used to handle output parameters and pointer references as well; however, I am not able to figure out the suitable way to use typemaps to resolve this problem, or any other workaround. Please suggest if i am doing something wrong, or how to use typemap in such situation?

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Cannot update a single field using Linq to Sql

- by KallDrexx

I am having a hard time attempting to update a single field without having to retrieve the whole record prior to saving. For example, in my web application I have an in place editor for the Name and Description fields of an object. Once you edit either field, it sends the new field (with the object's ID value) to the web server. What I want is the webserver to take that value and ID and only update the one field. There are only two ways google tells me to do this: 1) When I get the value I want to change, the value and the ID, retrieve the record from the database, update the field in the c# object, and then send it back to the server. I don't like this method because not only does it include a completely unnecessary database read call (which includes two tables due to the way my schema is). 2) Set UpdateCheck for all the fields (but the primary keys) to UpdateCheck.Never. This doesn't work for me (I think) due to my mapping layer between the Linq to Sql and my Entity/ViewModel layer. When I convert my entity into the linq to sql db object it seems to be updating those fields regardless of the UpdateCheck setting. This might be just because of integers, since not setting an int means it is a zero (and no, I can't use int? instead). Are there any other options that I have?

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Search found 6438 results on 258 pages for 'layer groups'.

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- by diff

- by A13X

- by user11347

- by user285467

- by Ant

- by XTF

- by GWLlosa

- by drunknbass

- by RAGOpoR

- by Chris D

- by developr

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