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  • Optional non-system type parameters

    - by Courtney de Lautour
    C#4.0 obviously brings optional parameters (which I've been waiting for, for quite some time). However it seems that because only system types can be const that I cannot use any class/struct which I have created, as an optional param. Is there a some way which allows me to use a more complex type as an optional parameter. Or is this one of the realities that one must just live with?

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  • Python3 function annotations for type hinting versus Boo

    - by b0lt
    I've started on a medium-sized project in python, and I decided to use python 3 because I'm not using any large external libraries and py3k has some nice new syntactic sugar and more importantly function annotations. However, it seems like none of WingIDE, Pydev, or pycharm actually have any support for type hinting using function annotations. If I want something resembling static typing in python, is switching to boo a reasonable option?

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  • Accessing C# Anonymous Type Objects

    - by Ali Kazmi
    Hi, How do i access objects of an anonymous type outside the scope where its declared? for e.g. void FuncB() { var obj = FuncA(); Console.WriteLine(obj.Name); } ??? FuncA() { var a = (from e in DB.Entities where e.Id == 1 select new {Id = e.Id, Name = e.Name}).FirstOrDefault(); return a; }

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  • get type of NSNumber

    - by okami
    I want to get the type of NSNumber instance. I found out on http://www.cocoadev.com/index.pl?NSNumber this: NSNumber *myNum = [[NSNumber alloc] initWithBool:TRUE]; if ([[myNum className] isEqualToString:@"NSCFNumber"]) { // process NSNumber as integer } else if ([[myNum className] isEqualToString:@"NSCFBoolean"]) { // process NSNumber as boolean } Ok, but this doesn't work, the [myNum className] isn't recognized by the compiler. I'm compiling for iPhone.

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  • Rails Atom builder xml.tag!("activity:object-type") error

    - by Anup
    I am creating a activity stream of my feeds according to the http://activitystrea.ms standard. I am using rails atom builder to create a valid atom feed, but when I use xml.tag!("activity:object-type", "http://activitystrea.ms/schema/1.0/person") the atom feed goes blank.On seeing the source I find the correct xml format from what I have found out the ":object" is giving the problem.

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  • How to Convert Type in Tuples

    - by Pradeep
    how to convert a String type to a Int i have a tuple and i want to convert it to a tuple which has different types tupletotuple :: (String,String,String) ->(String,Int,Int) tupletotuple (a,b,c) = (a,read(b),read(c)) i get this Error Msg Project tupletotuple ("cha",4,3) ERROR - Cannot infer instance * Instance : Num [Char] * Expression : tupletotuple ("cha",4,3)

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  • Extension method on type

    - by Karsten
    Hi Is there a way to create an extension method for an type ? I only seem to be able to create them for instances. public static class MyExtensions { public static string Test(this string s) { return "test"; } } public class Test { static void TestIt() { string.Test(); // won't compile string s = null; s.Test(); } }

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  • Type 'xxx' is not defined, BC30002 error.

    - by devin M. arnold
    Hello, It is possible to create an instance of a C# class within a aspx.vb codebehind file? When I try this within the Page_Load event: Dim oFlow As New Flow(HttpContext.Current.Request) I get the Type 'Flow' is not defined. The Flow class itself is located here: App_Code/CSCode/Cust/Frm/Flow.cs There's no namespace associated with this class. Any suggestions would be greatly appreciated. cheers, devin

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  • Java - how to design your own type?

    - by Walter White
    Hi all, Is it possible to design your own Java Type, say an extensible enum? For instance, I have user roles that a certain module uses and then a sub-package provides additional roles. What would be involved on the JDK side of things? Walter

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  • How Can I Detect A Data Type in AS3

    - by Jascha
    I'd like to make a call to a function and send either a string or an integer... function getImage(val:*):void{ if(val == String){ switch(val){ case'next': loadNext(); break; case'prev': loadPrev(); break } } }else{ loadImg(val); } } and vary my function accordingly... anyone know how to detect the parameter type? Thanks -J

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  • iphone com.apple.product-type.tool

    - by John Smith
    Hello I am having trouble compiling a static library for the iPhone. It worked in the past. It keeps saying "target specifies 'com.apple.product-type.tool' but there is no such product for the 'iphoneos' platform. I have rechecked the static compilation flag.

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  • protobuf-net: Incorrect wire-type deserializing TimeSpan

    - by balinisteanu
    I get this exception when my client application is trying to deserialize a message comming from WCF service ("Incorrect wire-type deserializing TimeSpan"). I'm using .NET 3.5 SP1 and latest version of protobuf-net (1.0.0.275). I have no idea what could be the issue comming from. I don't undersand the reason of this error message. Anyone?

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  • Maintaining content type pk integrity in a Django deployment

    - by hekevintran
    When you run syncdb in Django, the primary keys of the content types will be recomputed. If I create new models, the next time I run syncdb, the primary keys of the content types will be different. If I have an application running in production, how can I update the database with the new models and keep the integrity of content type pks?

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