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• WPF TabBarControl Setting Focus to element when tab changes

  - by Aran Mulholland

  I have a TabControl that is bound to a view model <TabControl ItemsSource="{Binding Path=ViewModelCollection}" > <TabControl.ItemContainerStyle> <Style TargetType="TabItem" BasedOn="{StaticResource {x:Type TabItem}}"> <Setter Property="Header" Value="{Binding Title}" /> <Setter Property="Content" Value="{Binding}" /> </Style> </TabControl.ItemContainerStyle> </TabControl> Each Tab simply contains a View Model Item. I use a data template to display this. <!-- View Model Template --> <DataTemplate DataType="{x:Type local:ViewModelItem}"> <DockPanel> <TextBox Text="I want this to have the focus"/> </DockPanel> </DataTemplate> When the current tab is changed i want the focus to be on the textbox (this is a simple example, in my production code i have a datagrid) in the data template. how do i accomplish this?

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• How do I specify a crossdomain policy file to allow Flash to grab a bitmap from an RTMP (Wowza) vide

  - by Ken Smith

  I'm trying to get a bitmap/snapshot of a Wowza video stream playing on my client, like so: var bitmapData:BitmapData = new BitmapData(view.videoPlayerComponent.width, view.videoPlayerComponent.height); bitmapData.draw(view.videoPlayerComponent); When I do this, I get this error message: SecurityError: Error #2123: Security sandbox violation: BitmapData.draw: http://localhost:51150/Resources/WRemoteWebCam.swf cannot access rtmp://localhost/videochat/smithkl42._default/. No policy files granted access. I presume the error comes from not being able to locate the appropriate crossdomain.xml file. I'm not quite sure where it's looking for it, and a wireshark sniff was inconclusive, so I've tried placing one in each of the following places: http://localhost/crossdomain.xml http://localhost:1935/crossdomain.xml http://localhost:51150/crossdomain.xml I can retrieve the file successfully from each of those three locations. (I'm pretty sure that the last one wouldn't have any effect, since it's just the location of the web site which hosts the page that hosts the .swf file, but on the off chance...) These are the contents of the file that it's grabbing in each instance: <cross-domain-policy> <allow-access-from domain="*" to-ports="*" /> </cross-domain-policy> And it's still throwing that same error message. I've also followed the instructions on the Wowza forums, to turn on StreamVideoSampleAccess in the [install]\conf[appname]\Application.xml, with no joy: <Client> <IdleFrequency>-1</IdleFrequency> <Access> <StreamReadAccess>*</StreamReadAccess> <StreamWriteAccess>*</StreamWriteAccess> <StreamAudioSampleAccess>*</StreamAudioSampleAccess> <StreamVideoSampleAccess>*</StreamVideoSampleAccess> <SharedObjectReadAccess>*</SharedObjectReadAccess> <SharedObjectWriteAccess>*</SharedObjectWriteAccess> </Access> </Client> Any thoughts?

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• How do I hook into the action method for an iPad popover toolbar button?

  - by Elisabeth

  Hi, I am using the split view template to create a simple split view that has, of course, a popover in Portrait mode. I'm using the default code generated by template that adds/removes the toolbar item and sets the popover controller and removes it. These two methods are splitViewController:willShowViewController:... and splitViewController:willHideViewController:... I'm trying to figure out how to make the popover disappear if the user taps on the toolbar button while the popover is displayed. You can make the popover disappear without selecting an item if you tap anywhere outside the popover, but I would also like to make it disappear if the user taps the button again. Where I'm stuck is this: there doesn't seem to be an obvious, easy way to hook into the action for the toolbar button. I can tell, using the debugger, that the action that's being called on the button is showMasterInPopover. And I am new to working with selectors programmatically, I admit. Can I somehow write an action and set it on the toolbar item without overriding the action that's already there? e.g. add an action that calls the one that's there now? Or would I have to write an action that shows/hides the popover myself (behavior that's being done behind the scenes presumably by the split view controller now???). Or am I missing an easy way to add this behavior to this button without changing the existing behavior that's being set up for me? Thank you!

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• icefaces datatable component

  - by chetan

  I have two datatable in two different jspx page but when I call one then i try to call other old one still display what is the problem there. from the old page only datatable is display no other component are displayed. This is one jspx page -- -- <div style="margin-bottom: 20px;"> <div> <div class="page-navi"> <ice:dataPaginator id="dataScroll_3" for="companyDataTable1" paginator="true"> <f:facet name="first"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-first.gif" title="First Page" /> </f:facet> <f:facet name="last"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-last.gif" title="Last Page" /> </f:facet> <f:facet name="previous"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-previous.gif" title="Previous Page" /> </f:facet> <f:facet name="next"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-next.gif" title="Next Page" /> </f:facet> </ice:dataPaginator> </div> <ice:panelGroup> <ice:dataTable id="companyDataTable1" rendered="#{createLeaveBean.empRender}" binding="#{createLeaveBean.empTable}" value="#{createLeaveBean.lstEmployeeeInfo}" var="currentRow" width="80%" cellpadding="0" cellspacing="0" headerClass="std-table-header" styleClass="std-table" rows="10"> <ice:column style="width: 1%"> <f:facet name="header"> <ice:selectBooleanCheckbox id="selectallemp" partialSubmit="true" value="#{createLeaveBean.selectAll}" valueChangeListener="#{createLeaveBean.toggleSelectedFields}" onkeydown="moveFocus(event,'selectoneemp')" tabindex="8"></ice:selectBooleanCheckbox> </f:facet> <ice:selectBooleanCheckbox id="selectoneemp" value="#{currentRow.notify}" tabindex="9" ></ice:selectBooleanCheckbox> </ice:column> <ice:column style="width: 5%;"> <f:facet name="header"><ice:outputText value="Employee Id" /></f:facet> <ice:outputText value="#{currentRow.employeeInfoId}" /> </ice:column> <ice:column style="width: 34%;"> <f:facet name="header"><ice:outputText value="Employee Name" /></f:facet> <ice:outputText value="#{currentRow.firstName}" /> </ice:column> </ice:dataTable> </ice:panelGroup> </div> <ice:commandButton id="createleave" tabindex="12" value="Create" action="#{createLeaveBean.createLeavePolicyEmp}" styleClass="std-btn" style="margin-right: 10px;margin-left: 50px;margin-top: 15px"></ice:commandButton> <ice:commandButton id="cancelleave" tabindex="13" value="Cancel" action="#{createLeaveBean.cancelLeavePolicyEmp}" rendered="true" styleClass="std-btn" style="margin-top: 15px"></ice:commandButton> </div> This is second jspx page <div class="page-navi"> <ice:dataPaginator id="dataScroll_4" for="companyDataTable2" paginator="true"> <f:facet name="first"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-first.gif" title="First Page" /> </f:facet> <f:facet name="last"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-last.gif" title="Last Page" /> </f:facet> <f:facet name="previous"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-previous.gif" title="Previous Page" /> </f:facet> <f:facet name="next"> <ice:graphicImage url="/xmlhttp/css/xp/css-images/arrow-next.gif" title="Next Page" /> </f:facet> </ice:dataPaginator> </div> <ice:panelGroup> <ice:dataTable id="companyDataTable2" rendered="#{createLeaveBean.deptRender}" binding="#{createLeaveBean.empTable}" value="#{createLeaveBean.lstEmployeeeInfo}" var="currentRowww" width="96%" cellpadding="0" cellspacing="0" headerClass="std-table-header" styleClass="std-table" rows="10"> <ice:column style="width: 5%;"> <f:facet name="header"><ice:outputText value="Employee Id" /></f:facet> <ice:outputText value="#{currentRowww.employeeInfoId}" /> </ice:column> <ice:column style="width: 34%;"> <f:facet name="header"><ice:outputText value="Employee Name" /></f:facet> <ice:outputText value="#{currentRowww.firstName}" /> </ice:column> </ice:dataTable> </ice:panelGroup> <ice:commandButton id="createLeave" value="Create" action="#{createLeaveBean.createLeavePolicyDept}" styleClass="std-btn" tabindex="8" style="margin-right: 10px;margin-left: 40px;margin-top: 15px"></ice:commandButton> <ice:commandButton id="cancelLeave" value="Cancel" action="#{createLeaveBean.cancelLeavePolicyDept}" rendered="true" styleClass="std-btn" tabindex="9" style="margin-top: 15px"></ice:commandButton>

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• Laravel - public layout not needed in every function

  - by fischer

  I have just recently started working with Laravel. Great framework so far! However I have a question. I am using a layout template like this: public $layout = 'layouts.private'; This is set in my Base_Controller: public function __construct(){ //Styles Asset::add('reset', 'css/reset.css'); Asset::add('main', 'css/main.css'); //Scripts Asset::add('jQuery', 'http://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js'); //Switch layout template according to the users auth credentials. if (Auth::check()) { $this -> layout = 'layouts.private'; } else { $this -> layout = 'layouts.public'; } parent::__construct(); } However I get an error exception now when I try to access functions in my diffrent controllers, which should not call any view, i.e. when a user is going to login: class Login_Controller extends Base_Controller { public $restful = true; public function post_index() { $user = new User(); $credentials = array('username' => Input::get('email'), 'password' => Input::get('password')); if (Auth::attempt($credentials)) { } else { } } } The error I get, is that I do not set the content of the different variables in my public $layout. But since no view is needed in this function, how do I tell Laravel not to include the layout in this function? The best solution that I my self have come a cross (don't know if this is a bad way?) is to unset($this -> layout); from function post_index()... To sum up my question: how do I tell Laravel not to include public $layout in certain functions, where a view is not needed? Thanks in advance, fischer

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• Google Chrome OS ISO

  - by Taylor

  First of all, a few questions as I'm a bit confused :P Is the Chrome OS that is shipped on Chromebooks "Chromium"? I'm wanting to buy a Chromebook, but I want to download an ISO or other similar format first so I can try it out in VMware. To be clear, I'm wanting the exact version that ships on Chromebooks, as I want to get a good feel for what I'll be buying Where can I find this? I've found other things but I'm not sure they're the actual Chrome OS

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• Comma comes up instead of single quote with single quote key in MS-Word 2007

  - by Nitrodist

  I have a peculiar problem in Microsoft Office 2007 (Word). When I am using single quotes, the first time I type a ' it appears as a , instead. For example, typing ''' translates to ,'' in Word, necessitating me to go back and delete the comma so that I can correctly single-quote words. Is there a solution to this? Also, the dictionary was set to German when I first started using the application, but I set it to US English after that.

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• Quaddratic Bezier Curve: Calculate Tangent

  - by stefan.at.wpf

  Hello, I have have a quadratic bezier curve and I want to calculate the slope of the tangent in a given point. For example, let it be the middlepoint of the quadratic bezier curve, therefore t=0.5 (please see the link below for a picture of this). I've calculated the first derivation of the formula for the quadratic bezier curve, however I get 400 as value for the slope, though it should be 0. Maybe I'm using the first derivation in a wrong way? I know I could also calculate the tangents using trigonometric functions, however I'd like to do it using the first derivation, shouldn't this be possible? Thanks for any hint! For clarification / please note: I'm interested in a general way to get the slope in a arbitrary given point on a quadratic bezier curve, not only to get the tangent in the start- and end point. A picture of my problem including the text above: http://cid-0432ee4cfe9c26a0.skydrive.live.com/self.aspx/%c3%96ffentlich/Quadratic%20Bezier%20Curve.pdf Thank you very much for any hint!

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• Error installing scipy on Mountain Lion with Xcode 4.5.1

  - by Xster

  Environment: Mountain Lion 10.8.2, Xcode 4.5.1 command line tools, Python 2.7.3, virtualenv 1.8.2 and numpy 1.6.2 When installing scipy with pip install -e "git+https://github.com/scipy/scipy#egg=scipy-dev" on a fresh virtualenv. llvm-gcc: scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.c In file included from /System/Library/Frameworks/vecLib.framework/Headers/vecLib.h:43, from /System/Library/Frameworks/Accelerate.framework/Headers/Accelerate.h:20, from scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.c:2: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:51:23: error: immintrin.h: No such file or directory In file included from /System/Library/Frameworks/vecLib.framework/Headers/vecLib.h:43, from /System/Library/Frameworks/Accelerate.framework/Headers/Accelerate.h:20, from scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.c:2: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vceilf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:53: error: incompatible types in return /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vfloorf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:54: error: incompatible types in return /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vintf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: ‘_MM_FROUND_TRUNC’ undeclared (first use in this function) /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: (Each undeclared identifier is reported only once /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: for each function it appears in.) /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: incompatible types in return /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vnintf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:56: error: ‘_MM_FROUND_NINT’ undeclared (first use in this function) /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:56: error: incompatible types in return In file included from /System/Library/Frameworks/vecLib.framework/Headers/vecLib.h:43, from /System/Library/Frameworks/Accelerate.framework/Headers/Accelerate.h:20, from scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.c:2: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:51:23: error: immintrin.h: No such file or directory In file included from /System/Library/Frameworks/vecLib.framework/Headers/vecLib.h:43, from /System/Library/Frameworks/Accelerate.framework/Headers/Accelerate.h:20, from scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.c:2: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vceilf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:53: error: incompatible types in return /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vfloorf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:54: error: incompatible types in return /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vintf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: ‘_MM_FROUND_TRUNC’ undeclared (first use in this function) /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: (Each undeclared identifier is reported only once /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: for each function it appears in.) /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:55: error: incompatible types in return /System/Library/Frameworks/vecLib.framework/Headers/vfp.h: In function ‘vnintf’: /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:56: error: ‘_MM_FROUND_NINT’ undeclared (first use in this function) /System/Library/Frameworks/vecLib.framework/Headers/vfp.h:56: error: incompatible types in return error: Command "/usr/bin/llvm-gcc -fno-strict-aliasing -Os -w -pipe -march=core2 -msse4 -fwrapv -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -Iscipy/sparse/linalg/eigen/arpack/ARPACK/SRC -I/Users/xiao/.virtualenv/lib/python2.7/site-packages/numpy/core/include -c scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.c -o build/temp.macosx-10.4-x86_64-2.7/scipy/sparse/linalg/eigen/arpack/ARPACK/FWRAPPERS/veclib_cabi_c.o" failed with exit status 1 Is it supposed to be looking for headers from my system frameworks? Is the development version of scipy no longer good for the latest version of Mountain Lion/Xcode?

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• LXML E builder for java?

  - by directedition

  There is one thing I really love about LXML, and that the E builder. I love that I can throw XML together like this: message = E.Person( E.Name( E.First("jack") E.Last("Ripper") ) E.PhoneNumber("555-555-5555") ) To make: <Person> <Name> <First>Jack</First> <Last>Ripper</Last> </Name> <PhoneNumber>555-555-5555</PhoneNumber> </Person> As opposed to the painstaking way DOM works. I am going to be moving a bunch of my software to Java soon and it is very very heavy on its usage of E. Does Java have anything near equivalent to that usage?

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• C# unit test code questions

  - by 5YrsLaterDBA

  We start use C# build-in unit test functionality. I have VisualStudio 2008 created unit test code for me. I have few question above the generated code. Following are code I copied from the generated file: #region Additional test attributes // //You can use the following additional attributes as you write your tests: // //Use ClassInitialize to run code before running the first test in the class //[ClassInitialize()] //public static void MyClassInitialize(TestContext testContext) //{ //} // //Use ClassCleanup to run code after all tests in a class have run //[ClassCleanup()] //public static void MyClassCleanup() //{ //} // //Use TestInitialize to run code before running each test //[TestInitialize()] //public void MyTestInitialize() //{ //} // //Use TestCleanup to run code after each test has run //[TestCleanup()] //public void MyTestCleanup() //{ //} // #endregion If I need the initialize and cleanup methods, do I need to remove those "My" from the method name when I enable them? //Use ClassInitialize to run code before running the first test in the class //[ClassInitialize()] //public static void MyClassInitialize(TestContext testContext) //{ //} Do I need to call the "MyClassInitialize" method somewhere before running the first test or it will be called automatically before other methods are called. Similar questions for other three methods, are they called automatically at right time frame?

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• Asp.Net MVC Tutorial Unit Tests

  - by Nicholas

  I am working through Steve Sanderson's book Pro ASP.NET MVC Framework and I having some issues with two unit tests which produce errors. In the example below it tests the CheckOut ViewResult: [AcceptVerbs(HttpVerbs.Post)] public ViewResult CheckOut(Cart cart, FormCollection form) { // Empty carts can't be checked out if (cart.Lines.Count == 0) { ModelState.AddModelError("Cart", "Sorry, your cart is empty!"); return View(); } // Invoke model binding manually if (TryUpdateModel(cart.ShippingDetails, form.ToValueProvider())) { orderSubmitter.SubmitOrder(cart); cart.Clear(); return View("Completed"); } else // Something was invalid return View(); } with the following unit test [Test] public void Submitting_Empty_Shipping_Details_Displays_Default_View_With_Error() { // Arrange CartController controller = new CartController(null, null); Cart cart = new Cart(); cart.AddItem(new Product(), 1); // Act var result = controller.CheckOut(cart, new FormCollection { { "Name", "" } }); // Assert Assert.IsEmpty(result.ViewName); Assert.IsFalse(result.ViewData.ModelState.IsValid); } I have resolved any issues surrounding 'TryUpdateModel' by upgrading to ASP.NET MVC 2 (Release Candidate 2) and the website runs as expected. The associated error messages are: *Tests.CartControllerTests.Submitting_Empty_Shipping_Details_Displays_Default_View_With_Error: System.ArgumentNullException : Value cannot be null. Parameter name: controllerContext* and the more detailed at System.Web.Mvc.ModelValidator..ctor(ModelMetadata metadata, ControllerContext controllerContext) at System.Web.Mvc.DefaultModelBinder.OnModelUpdated(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) at System.Web.Mvc.Controller.TryUpdateModel[TModel](TModel model, String prefix, String[] includeProperties, String[] excludeProperties, IValueProvider valueProvider) at System.Web.Mvc.Controller.TryUpdateModel[TModel](TModel model, IValueProvider valueProvider) at WebUI.Controllers.CartController.CheckOut(Cart cart, FormCollection form) Has anyone run into a similar issue or indeed got the test to pass?

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• a missing variable in a switch statement ?!!

  - by mechhfly

  hi folks, i have a strange issue. a variable seems to be missing during a pass through a case statement i have a function like so function checklink($var0, $var1, $var2) { switch($var0) { case "case1": print $var2; //code uses $var2 successfully case "case2": print $var2; //variable has disappeared! } } essentially what i am doing is constructing a string from the last variable based on the first. if i run the code in which the first case is true, i get the expected results, but when i run the second case, my variable seems to have vanished. these first two case statements are syntactically the same and the variable is gathered from the $_GET array (hard coded into hyperlink). any light on this issue? if more explanation is needed let me know, its late and my brain is getting mushy. thanks my friends.

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• Spring-json problem in Liferay with Spring 2.5

  - by Jesus Benito

  Hi all, I am trying to use the library spring-json.1.3.1 in a project that has been done with Liferay 5.1.2 which includes Spring 2.5. Following the project website instructions, I managed to make the request hit in my controller, but at the moment of returning the json object back through the modelAndView object it fails with the following error: java.lang.IllegalArgumentException at com.liferay.portlet.MimeResponseImpl.setContentType(MimeResponseImpl.java:162) I have checked Liferays source code, and it checks that contentType that its being set is in a harcoded list,if it not it will throw a IllegalArgumentException that it is exactly what os happening. This is my view resolver code: <bean id="xmlFileViewResolver" class="org.springframework.web.servlet.view.XmlViewResolver"> /WEB-INF/context/views.xml 1 My views.xml code: <beans> <bean name="jsonView" class="org.springframework.web.servlet.view.json.JsonView"/> And my controller: @SuppressWarnings("unchecked") @Override public ModelAndView handleRenderRequest(RenderRequest arg0, RenderResponse arg1) throws Exception { Map model = new HashMap(); model.put("firstname", "Peter"); model.put("secondname", "Schmitt"); return new ModelAndView("jsonView", model); } Any ideas?

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• "AttributeError: fileno" when attemping to import from pyevolve

  - by Corey Sunwold

  I just installed Pyevolve using easy_install and I am getting errors trying to run my first program. I first tried copy and pasting the source code of the first example but this is what I receive when I attempt to run it: Traceback (most recent call last): File "/home/corey/CTest/first_intro.py", line 3, in from pyevolve import G1DList File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/init.py", line 15, in File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/Consts.py", line 240, in import Selectors File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/Selectors.py", line 12, in File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/GPopulation.py", line 11, in File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/FunctionSlot.py", line 14, in File "/usr/lib/python2.6/site-packages/Pyevolve-0.5-py2.6.egg/pyevolve/Util.py", line 20, in AttributeError: fileno I am running python 2.6 on Fedora 11 X86_64.

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• How to set up a user Quartz2D coordinate system with scaling that avoids fuzzy drawing?

  - by jdmuys

  This topic has been scratched once or twice, but I am still puzzled. And Google was not friendly either. Since Quartz allows for arbitrary coordinate systems using affine transform, I want to be able to draw things such as floorplans using real-life coordinate, e.g. feet. So basically, for the sake of an example, I want to scale the view so that when I draw a 10x10 rectangle (think a 1-inch box for example), I get a 60x60 pixels rectangle. It works, except the rectangle I get is quite fuzzy. Another question here got an answer that explains why. However, I'm not sure I understood that reason why, and moreover, I don't know how to fix it. Here is my code: I set my coordinate system in my awakeFromNib custom view method: - (void) awakeFromNib { CGAffineTransform scale = CGAffineTransformMakeScale(6.0, 6.0); self.transform = scale; } And here is my draw routine: - (void)drawRect:(CGRect)rect { CGContextRef context = UIGraphicsGetCurrentContext(); CGRect r = CGRectMake(10., 10., 11., 11.); CGFloat lineWidth = 1.0; CGContextStrokeRectWithWidth(context, r, lineWidth); } The square I get is scaled just fine, but totally fuzzy. Playing with lineWidth doesn't help: when lineWidth is set smaller, it gets lighter, but not crisper. So is there a way to set up a view to have a scaled coordinate system, so that I can use my domain coordinates? Or should I go back and implementing scaling in my drawing routines? Note that this issue doesn't occur for translation or rotation. Thanks

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• Unit Testing - Validation of ViewModel ASP.NET MVC 2

  - by dean nolan

  I am currently unit testing a service that adds users to a repository. I am using dependency injection to test using a fake repository. The repository has a method CreateUser(User user) which just adds it to the database or in this case a List of Users. The logic for the creation is in the UserServices class. The application has a form for creating a user that requires some properties such as name and address. This is an MVC 2 app and I will be using the new validation using data annotations. This makes me wonder about a few things: 1) Should I annotate a POCO object that will map to the database? Or should I create a specific View Model that has these annotations and pass this data to the UserServices class? 2)Should the UserServicesClass also check this data? Would I best be constructing a Usr out of the ViewModel and passing this into the Service as a parameter? 3) The actual unit testing would depend on 2), I either populate a User object and pass that in, or I pass a large list of strings to the method CreateUser. Writing this out I get a basic idea that I should probably annotate the view model only, pass in a user (constructed by the view model if the data is valid) and also just construct the user in the unit test also. Is this the best way to go?

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• DIV Overlaying DIV, links in backmost DIV non-accessible

  - by Shawn

  I have a photoshop image that is 500x600 that I am using as a background image for the first div. The second div sits over top of the first div and is populated with images. The z-index of the first div is set to 100. The effect is the photoshop image sits over top of all of the smaller images. The photoshop image is a letter with the inner-content of it set to be transparent and the small images create the filling. Each of the small images however is a link, but none of the links are accessible. How can I remedy that? I would post the code here, but I have absolutely no clue how to format it. I quite simply do not understand typing a backtick followed by the tab key and then a dollar sign. All that ends up is I type a backtick here followed by a dollar sign in the Tags section below.

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• Hiding keyboard in iPad with UITextView , can do this in iphone not iPad.

  - by user271753

  Hey the code below when written in HelloWorldAppDelegate.m in an iPhone app having UITextView hides the keyboard when the app starts : The UITextView is editable thats what I want in iPad Also But how can do the same in iPad its not working at all ! ! ! ! ! ! ! And also I have checked that I can use Subviews if I want to keep this to my app itself - (void)applicationDidFinishLaunching:(UIApplication *)application { //For hiding the Keyboard [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; [window addSubview:viewController.view]; [window makeKeyAndVisible]; } /// /// Hiding the Keyboard /// - (void)keyboardWillShow:(NSNotification *)note { //The UIWindow that contains the keyboard view UIWindow* tempWindow; //Because we cant get access to the UIKeyboard throught the SDK we will just use UIView. //UIKeyboard is a subclass of UIView anyways UIView* keyboard; //Check each window in our application for(int c = 0; c < [[[UIApplication sharedApplication] windows] count]; c ++) { //Get a reference of the current window tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:c]; //Get a reference of the current view for(int i = 0; i < [tempWindow.subviews count]; i++) { keyboard = [tempWindow.subviews objectAtIndex:i]; if (!strcmp(object_getClassName(keyboard), "UIKeyboard")) { NSLog(@"hide keyboard"); [keyboard setHidden:YES]; return; } } } } Regards

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• Explanation of Pingdom Results

  - by Computer Guru

  Hi, I'm trying to optimize my page load times, and I'm using Pingdom to test the site response times. However, I'm not exactly sure what the various components of the "time bar" mean. Example link: http://tools.pingdom.com/fpt/?url=http://neosmart.net/forums//&id=2230361 According to them, the portion of the bar that is yellow is the time between "start" and "connect" and the portion of the bar that is green is the time between "connect" and "first byte" with the blue section being the actual transfer time (time between "first byte" and "last byte"). If I'm trying to the first two (which take very long in my case), what's the recommended course of action? Thanks.

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• weak or strong for IBOutlet and other

  - by Piero

  I have switched my project to ARC, and I don't understand if I have to use strong or weak for IBOutlets. Xcode do this: in interface builder, if a create a UILabel for example and I connect it with assistant editor to my ViewController, it create this: @property (nonatomic, strong) UILabel *aLabel; It uses the strong, instead I read a tutorial on RayWenderlich website that say this: But for these two particular properties I have other plans. Instead of strong, we will declare them as weak. @property (nonatomic, weak) IBOutlet UITableView *tableView; @property (nonatomic, weak) IBOutlet UISearchBar *searchBar; Weak is the recommended relationship for all outlet properties. These view objects are already part of the view controller’s view hierarchy and don’t need to be retained elsewhere. The big advantage of declaring your outlets weak is that it saves you time writing the viewDidUnload method. Currently our viewDidUnload looks like this: - (void)viewDidUnload { [super viewDidUnload]; self.tableView = nil; self.searchBar = nil; soundEffect = nil; } You can now simplify it to the following: - (void)viewDidUnload { [super viewDidUnload]; soundEffect = nil; } So use weak, instead of the strong, and remove the set to nil in the videDidUnload, instead Xcode use the strong, and use the self... = nil in the viewDidUnload. My question is: when do I have to use strong, and when weak? I want also use for deployment target iOS 4, so when do I have to use the unsafe_unretain? Anyone can help to explain me well with a small tutorial, when use strong, weak and unsafe_unretain with ARC?

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• Parse error when trying to install app on Asus eee PC 701 running Android 2.0

  - by Don

  A beta tester of mine has a Asus eee pc 701 running Android 2.0 and he is trying to install an app on it from my web site. He is able to download the app but is getting a "Parse Error: There is a problem parsing the package" error. I don't really know if this problem is with the eee pc or with the apk since he is the first person to try to install it. I built it for 2.0, the manifest has 5 as the minimum API level and I used Eclipse to export and sign it. But this is my first Android app and he is the first to try to install it, so I am not sure what the problem might be? Could just be the Android implementation too. Here is a site about putting Android on the Asus: http://www.liliputing.com/2009/01/how-to-built-google-android-for-the-asus-eee-pc-701.html Any thoughts on what I might try to get this app installed on his machine?

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• listView dynamic add item

  - by pengwang

  hello,I used ListView to dynamic add item,but there is a problem about not Smooth add. there are textView and button in my listActivity,Iwant to Press button ,then textView"s text can auto add to listView,but i Pressed button ,it donot work,unless after i enter content , press "OK"Key ,then Pressed button ,textView"s text can auto add to listView. I donot know why. if I continuous Pressed button ,as3 times, then press "Ok"Key ,the content auto add list View but 3 times. public class DynamicListItems extends ListActivity { private static final String ITEM_KEY = "key"; ArrayList<HashMap<String, String>> list= new ArrayList<HashMap<String, String>>(); private SimpleAdapter adapter; private EditText newValue;@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dynamic_list); newValue = (EditText) findViewById(R.id.new_value_field); setListAdapter(new SimpleAdapter(this, list, R.layout.row, new String[] { ITEM_KEY }, new int[] { R.id.list_value })); ((ImageButton) findViewById(R.id.button)).setOnClickListener(getBtnClickListener()); } private OnClickListener getBtnClickListener() { return new OnClickListener() { public void onClick(View view) { try { HashMap<String, String> item = new HashMap<String, String>(); item.put(ITEM_KEY, newValue.getText().toString()); list.add(item); adapter.notifyDataSetChanged(); } catch (NullPointerException e) { Log.i("[Dynamic Items]", "Tried to add null value"); } } }; }} my another question is how to dynamic delete the item,which event i need to used,could you give me some directions or Code snippets? dynamic_list.xml only contains listView ,button,textView row.xml contains TextView . i amm sorry i donot edit code together.

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• Android - need UI help/advice

  - by Donal Rafferty

  I have been working on Android for the past couple of months getting to know how various components work. One area I am completely lacking in knowledge is any sort of User Interface or graphical interface creation. As an excercise I have been asked to break down the HTC call screen into what components it contains and rebuild as close as possible. Here is a picture of the HTC call screen: From my understanding the above UI has a custom title bar where "Meteor" and the call time appears. Then the main image in the middle block along with a text view showing the called party, in this case "Voice Mail" and the number. The bottom is then a custom view maybe with three custom buttons used within it. Would I be correct in my above assumptions? So the parts I should look into start programming are a custom title bar and a custom view with three custom buttons to place at the bottom? What layout would be reccomended? I hope this question is seen as relative to Stack Overflow, if it is not then I will delete it. Thanks in advance

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• ASP.NET MVC OutputCache with POST Controller Actions

  - by Maxim Z.

  I'm fairly new to using the OutputCache attribute in ASP.NET MVC. Static Pages I've enabled it on static pages on my site with code such as the following: [OutputCache(Duration = 7200, VaryByParam = "None")] public class HomeController : Controller { public ActionResult Index() { //... If I understand correctly, I made the whole controller cache for 7200 seconds (2 hours). Dynamic Pages However, how does it work with dynamic pages? By dynamic, I mean where the user has to submit a form. As an example, I have a page with an email form. Here's what that code looks like: public class ContactController : Controller { // // GET: /Contact/ public ActionResult Index() { return RedirectToAction("SubmitEmail"); } public ActionResult SubmitEmail() { //In view for CAPTCHA: <%= Html.GenerateCaptcha() %> return View(); } [CaptchaValidator] [AcceptVerbs(HttpVerbs.Post)] public ActionResult SubmitEmail(FormCollection formValues, bool captchaValid) { //Validate form fields, send email if everything's good... if (isError) { return View(); } else { return RedirectToAction("Index", "Home"); } } public void SendEmail(string title, string name, string email, string message) { //Send an email... } } What would happen if I applied OutputCache to the whole controller here? Would the HTTP POST form submission work? Also, my form has a CAPTCHA; would that change anything in the equation? In other words, what's the best way to approach caching with dynamic pages? Thanks in advance.

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