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• Rails 3 - Nested layouts - LocalJumpError

  - by Art Shayderov

  Hi Nested layouts do not work in Rails 3. After I hit this I tried Rails Guides Example on a blank project (both ruby 1.9.1 and 1.8.7). LocalJumpError no block given on line <%= yield :stylesheets %. If you remove this line you will get the same error on the next yield statement. Could someone fix(patch) this? It's probably just a matter of calling block_given? in the right place. That would be great. Thanks Added on 4/3: Rails 3 beta 2 released. Problem fixed.

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• Algorithm for evaluating nested logical expression

  - by TravelingSalesman

  I have a logical expression that I would like to evaluate. The expression can be nested and consists of T (True) or F (False) and parenthesis. The parenthesis "(" means "logical OR". Two terms TF beside each others (or any other two combinations beside each others), should be ANDED (Logical AND). For example, the expression: ((TFT)T) = true I need an algorithm for solving this problem. I thought of converting the expression first to disjunctive or conjunctive normal form and then I can easily evaluate the expression. However, I couldn't find an algorithm that normalizes the expression. Any suggestions? Thank you. The problem statement can be found here: https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=2&category=378&page=show_problem&problem=2967

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• PHPTAL Nested Repeat

  - by 114343500565423229598

  Hello guys, I am having an problem trying to achieve a nested repeat in PHPTAL: <tr tal:repeat="business analysis_result"> <td>${business/trading_name}</td> <tal:block tal:repeat="selected_key selected_keys"> <td>HOW??????</td> <---problem </tal:block> </tr> basically I want to have the of inner repeat to get the value of $business[$selected_key], I have looked at the phptal manual which doesn't really give you a demo on how to do this... cheers guys! James

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• ASP.NET Nested Repeater Accessing elements

  - by Rich

  I have a list of Accommodation objects bound to a Repeater, and then a nested Repeater which has the various attendee groups listed [e.g. Default, Seniors, Juniors]. This is all output fine, with the values displayed as LinkButtons, which when clicked gets sent to a code-behind event handler. Here is an example of the output to give you a picture [with some er... interesting attendee group names]: In the event handler, I test the object parameter to see which Repeater has been sent, as the outer repeater's links can also be clicked [so the Accommodation would be set, but no Attendee Group]. Is there a way to get a HiddenField from the outer RepeaterItem that contains the currently clicked inner repeater's LinkButton? E.g. From the image, I click the Attending link in the Women section. So the EventArgs via FindControl can get me the hidden field which contains the Attendee Group's ID, which is good, but I also need the Accommodation ID [to know whether it was either Wimbledon Hotel Inn or New Acc]

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• nested if: too many arguments?

  - by FLX

  For some reason this code creates problems: source="/foo/bar/" destination="/home/oni/" if [ -d $source ]; then echo "Source directory exists" if [ -d $destination ]; then echo "Destination directory exists" rsync -raz --delete --ignore-existing --ignore-times --size-only --stats --progress $source $destination chmod -R 0755 $destination else echo "Destination directory does not exists" fi else echo "Source directory does not exists" fi It errors out with: Source directory exists /usr/bin/copyfoo: line 7: [: too many arguments Destination directory does not exists I used nested if statements in bash before without a problem, what simple mistake am I overlooking? Thanks!

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• The cost of nested methods

  - by Palimondo

  In Scala one might define methods inside other methods. This limits their scope of use to inside of definition block. I use them to improve readability of code that uses several higher-order functions. In contrast to anonymous function literals, this allows me to give them meaningful names before passing them on. For example: class AggregatedPerson extends HashSet[PersonRecord] { def mostFrequentName: String = { type NameCount = (String, Int) def moreFirst(a: NameCount, b: NameCount) = a._2 > b._2 def countOccurrences(nameGroup: (String, List[PersonRecord])) = (nameGroup._1, nameGroup._2.size) iterator.toList.groupBy(_.fullName). map(countOccurrences).iterator.toList. sortWith(moreFirst).head._1 } } Is there any runtime cost because of the nested method definition I should be aware of? Does the answer differ for closures?

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• substitute in a nested list (prolog)

  - by linda

  /* substitute(X,Y,Xs,Ys) is true if the list Ys is the result of substituting Y for all occurrences of X in the list Xs. This is what I have so far: subs(_,_,[],[]). subs(X,Y,[X|L1],[Y|L2]):- subs(X,Y,L1,L2). subs(X,Y,[H|L1],[H|L2]):- X\=H, not(H=[_|_]), subs(X,Y,L1,L2). subs(X,Y,[H|_],[L2]):- X\=H, H=[_|_], subs(X,Y,H,L2). My code works except it omits the elements following the nested list. For example: ?- subs(a,b,[a,[a,c],a],Z). Z = [b, [b, c]] . What should I add to this program?

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• Is restricting attributes to class or properties doable?

  - by Will Marcouiller

  I have two custom attributes defined like so: internal class SchemaAttribute : Attribute { internal SchemaAttribute(string schema) { Schema = schema; } internal string Schema { get; private set; } } internal class AttributeAttribute : Attribute { internal AttributeAttribute(string attribute) { Attribute = attribute; } internal string Attribute { get; private set; } } I would like to restrict the SchemaAttribute to classes, and the AttributeAttribute to properties. Is this doable?

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• Problem with nested lambda expressions.

  - by Lehto

  Hey I'm trying to do a nested lambda expression like to following: textLocalizationTable.Where( z => z.SpokenLanguage.Any( x => x.FromCulture == "en-GB") ).ToList(); but i get the error: Member access 'System.String FromCulture' of 'DomainModel.Entities.SpokenLanguage' not legal on type 'System.Data.Linq.EntitySet`1[DomainModel.Entities.SpokenLanguage]. TextLocalization has this relation to spokenlanguage: [Association(OtherKey = "LocalizationID", ThisKey = "LocalizationID", Storage = "_SpokenLanguage")] private EntitySet<SpokenLanguage> _SpokenLanguage = new EntitySet<SpokenLanguage>(); public EntitySet<SpokenLanguage> SpokenLanguage { set { _SpokenLanguage = value; } get { return _SpokenLanguage; } } Any idea what is wrong?

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• Knockout.js nested sortable bindings

  - by user2391998

  I am working with the knockout.js sortable plugin; however, I ran into a problem that I have so far been unable to solve. I have two sortable bindings, one for buckets and another for bucketItems. I am able to reorder bucketItems between buckets and between buckets; however, I am unable to reorder buckets. Would you have any idea why this would be? I am also using nested with bindings, but as far as I can tell, this is not what is causing problems. I would greatly appreciate any insight you have to offer. Thank you so much for your time!

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• nested page-faulting of user-space address in Linux

  - by shankar

  Hi, I would like to know if it is functionally wrong to page-fault a user-space address when kernel is running fault-handler to bring in a user-page. OS is Linux 2.6.30 Assume that both user-addresses are valid ( falling within vma , rw permission ) for the task. When I check the kernel code, i find that the kernel does not mind the nested fault if the faulted-addresses are valid and the fault did not occur in atomic-context or in irq handler. (I dont think the answer is cpu-specific, but I would add that i am interested in arm and mips ). eg : The scenario can happen if I print stack-data from page-fault handler. thanks shankar

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• Nested WPF DataGrids

  - by jvberg

  I have a DataGrid (from the toolkit) and I want to nest another DataGrid in the DataGrid.RowDetailsTemplate. The trick is I want to bring back the data from one table in the main grid and then based on row selection go and get additonal detail from a different table and show it in the DataGrid in the detail template. This is easy enough to do in 2 seperate DataGrids but I am having trouble getting it to work with the nested version. Is this even possible? If so, could someone point me in the right direction. I should note I am using LinqToSql clases to populate the data. Thanks for your consideration. -Joel

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• Unable to read values from Nested SortedDictionary in C#

  - by Yogi

  HI I am using nested SortedDictionary in my code as SortedDictionary<string, SortedDictionary<string, int>> but not able to use value stored in this object. Please find the code which i am using SortedDictionary<string, SortedDictionary<string, int>> baseItemCounts = new SortedDictionary<string, SortedDictionary<string, int>>(); baseItemCounts.Add("1450", new SortedDictionary<string, int>()); baseItemCounts["1450"].Add("1450M", 15); I want to print these values on screen. but don't know how to access it. 1450 1450M ==== 15 Please some one can help?

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• Spring properties (property-placeholder) autowiring

  - by peperg

  I have in my applicationContext.xml <context:property-placeholder location="classpath*:*.properties" /> <bean id="clientPreferencesManager" class="pl.bildpresse.bildchat2.business.ClientPreferencesManager" > <property name="clientApiUrl" value="${clientapi.url}" /> </bean> Is it possible to do the same by autowire ? Something like : @Autowired @Qualifier("${clientapi.url}") public void setClientApiUrl(String clientApiUrl) { this.clientApiUrl = clientApiUrl; }

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• rotate and its properties

  - by faxtion

  When using -webkit-transform: rotate(-90deg); -moz-transform: rotate(-90deg); filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3);; does its properties rotate with it or do they stay the same, for example does the margin top become the left, or does margin top stay at the top? Think it's me being stupid but having some weird things happing when trying style the elements

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• Locating multiple nested If statements using regular expressions

  - by TERACytE

  Is there a way to search for multiple nested if statements in code using a regular expression? For example, an expression that would locate an instance of if statements three or more layers deep with different styles (if, if/else, if/elseif/else): if (...) { <code> if (...) { <code> if (...) <code> } else if (...) { <code> } else { <code> } } else { <code> }

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• Looking for a tool to enumerate the methods and properties on a compiled activeX

  - by Vinzz

  Hi, I'm looking for a tool to enumerate all methods and properties on an activeX binary. Right now, my solution consists in adding the activeX as a reference in a VB6 project, then use the object explorer (F2). Is there anything quicker than that? Ms ActiveX Control Pad isn't an option, as it's far less usable than the VB IDE. Thanks

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• Comparing Nested object properties using C#

  - by Kumar

  I have a method which compares two objects and returns a list of all the property names which are different. public static IList<string> GetDifferingProperties(object source, object) { var sourceType = source.GetType(); var sourceProperties = sourceType.GetProperties(); var targetType = target.GetType(); var targetProperties = targetType.GetProperties(); var properties = (from s in sourceProperties from t in targetProperties where s.Name == t.Name && s.PropertyType == t.PropertyType && s.GetValue(source,null) != t.GetValue(target,null) select s.Name).ToList(); return properties; } For example if I have two classes as follows: public class Address { public string AddressLine1 { get; set; } public string AddressLine2 { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { get; set; } } public class Employee { public string FirstName { get; set; } public string MiddleName { get; set; } public string LastName { get; set; } public Address EmployeeAddress { get; set; } } I am trying to compare the following two employee instances: var emp1Address = new Address(); emp1Address.AddressLine1 = "Microsoft Corporation"; emp1Address.AddressLine2 = "One Microsoft Way"; emp1Address.City = "Redmond"; emp1Address.State = "WA"; emp1Address.Zip = "98052-6399"; var emp1 = new Employee(); emp1.FirstName = "Bill"; emp1.LastName = "Gates"; emp1.EmployeeAddress = emp1Address; var emp2Address = new Address(); emp2Address.AddressLine1 = "Gates Foundation"; emp2Address.AddressLine2 = "One Microsoft Way"; emp2Address.City = "Redmond"; emp2Address.State = "WA"; emp2Address.Zip = "98052-6399"; var emp2 = new Employee(); emp2.FirstName = "Melinda"; emp2.LastName = "Gates"; emp2.EmployeeAddress = emp2Address; So when I pass these two employee objects to my GetDifferingProperties method currently it returns FirstName and EmployeeAddress, but it does not tell me which exact property (which in this case is Address1) in the EmployeeAddress has changed. How can I tweak this method to get something like EmployeeAddress.Address1?

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• Properties window like visual studio in Silverlight

  - by Meysam Javadi

  suppose this scenario: there is a design panel like XAML designer that i added some Controls on it(in run-time with create instance of some element and add it to RootLayout.Children). now i like manipulate some properties of one control(that i now which one) with something like this. is there a any short approach to goal?

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• Using properties in web.xml

  - by Pich

  Hi, I would like to control the settings in web.xml and using different once for different environments. Is it possible to use a property, from a property file on classpath, in web.xml? Something like this: <context-param> <param-name>myparam</param-name> <param-value>classpath:mypropertyfile.properties['myproperty']</param-value> </context-param> Best regards P

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• Java: Non-static nested classes and instance.super()

  - by Kiv

  I'm having a hard time wrapping my head around non-static nested classes in Java. Consider the following example, which prints "Inner" and then "Child". class Outer { class Inner { Inner() { System.out.println("Inner"); } } } public class Child extends Outer.Inner { Child(Outer o) { o.super(); System.out.println("Child"); } public static void main(String args[]) { new Child(new Outer()); } } I understand that instances of Inner always have to be associated with an Outer instance, and that that applies to Child too since it extends Inner. My question is what the o.super() syntax means - why does it call the Inner constructor? I've only seen a plain super(args) used to call the superclass constructor and super.method() to call the superclass version of an overridden method, but never something of the form instance.super().

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• Using jquery with nested masterpages

  - by diver-d

  Hi everyone, Can anyone show me how to use jquery in an asp.net nested masterpage. I have my main masterpage where I have added the link to the jquery libaray and also the validation framework. I have then created another masterpage with some styling and created a aspx page based on that masterpage. How can I attach the validation framework to textboxes within my page? I have tried $("#aspnetForm").validate({ rules: { <%=txtPostCode.UniqueID %>: { minlength: 2, required: true }, <%=txtContactEmail.UniqueID %>: { required: true, email:true } }, messages: { <%=txtPostCode.UniqueID %>:{ required: "* Required Field *", minlength: "* Please enter atleast 2 characters *" } } }); However nothing happens. Can anyone point me in the right direction?

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• How to read Windows.UI.XAML.Style properties in C#

  - by Igor Kulman

  I am writing a class that will convert a HTML document to a list of Paragrpahs that can be used with RichTextBlock in Windows 8 apps. I want to be able to give the class a list of Styles defined in XAML and the class will read useful properties from the style and apply them. If I have a Windows.UI.XAML.Style style how do I read a property from it? I tried var fontWeight = style.GetValue(TextElement.FontWeightProperty) for a style defined in XAML with TargetProperty="TextBlock" but this fails with and exception

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• Nested class with hidden constructor impossible in c#?

  - by luckyluke

  I' ve been doing some programming lately and faced an issue which i found weird in c#. (at least for me) public class Foo { //whatever public class FooSpecificCollection : List<Bar> { //implementation details } public FooSpecificCollection GetFoosStuff() { //return the collection } } I want the consumer of Foo to be able to obtain a reference to FooSpecificCollection, even perform some operations on it. Maybe even set it to some other property of Foo or smth like that, but not To be able to CREATE an instance of this class. (the only class that should be able to instatiate this collection should be Foo. Is my request really that far-fetched? I know that people way smarter defined c# but shouldn't there be such an option that a parent class can create a nested class instance but nobody else can't. So far I created a solution to make an abstract class, or interface available through the property and implement a concrete private class that is not available anywhere else. Is this a correct way to handle such a situation.?

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• Finding controls inside nested master pages

  - by evanmortland

  I have a master page which is nested 2 levels. It has a master page, and that master page has a master page. When I stick controls in a ContentPlaceHolder with the name "bcr" - I have to find the controls like so: Label lblName =(Label)Master.Master.FindControl("bcr").FindControl("bcr").FindControl("Conditional1").FindControl("ctl03").FindControl("lblName"); Am I totally lost? Or is this how it needs to be done? I am about to work with a MultiView, which is inside of a conditional content control. So if I want to change the view I have to get a reference to that control right? Getting that reference is going to be even nastier! Is there a better way? Thanks

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