How to enumerate an object's properties in Python?
I C# we do it through reflection. In Javascript it is simple as: for(var propertyName in objectName) var currentPropertyValue = objectName[propertyName]; How to do it in Python? ...
reflection
Playing around Reflection
Is there any mini C# console application available to pursue Reflection ? ...
How to find the Method Name of the calling method from a method at runtime ?
For example: Class A { M1() { B.M2(); } } class B { public static M2() { // I need some code here to find out the name of the method that called this method, preferably the name of the declared type of the calling method also. } } ...
C# Generic interface
I need to pass a generic type parameter to an interface. I have a string with the name of the type. I have something like this: string type = "ClassType"; Type t = Type.GetType("ClassType"); IProvider<t> provider = (IProvider<t>)someObject; This doesn't work for me. What is the correct way to do it? Thanks. ...
Reflectively accessing a static variable in a Java class
I've been given no other choice but to access a set of classes, which I cannot modify, with this structure through reflection. Using the method shown in the main method below however, throws a NullPointerException. The null pointer being "table" in the constructor when f1.get(null) is called. I am unable to instantiate the classes befo...
ReflectionOnlyLoadFrom & Unload?
If I do a Assembly.ReflectionOnlyLoadFrom(), is it possible to unload the assembly? Or, can it be unloaded only if it is in a separate AppDomain, as with Assembly.LoadFrom() ? I have a tool that needs to load an assembly for inspection. ...
Rewriting method calls within compiled Java classes
I want to replace calls to a given class with calls to anther class within a method body whilst parsing compiled class files... or put another way, is there a method of detecting usages of a given class in a method and replacing just that part of the method using something like javaassist. for example.. if I had the compiled version of...
How to access internal class using Reflection
Hello there, How can I access an internal class of an assembly? Say I want to access System.ComponentModel.Design.DesignerHost. Here the DesignerHost is an internal and sealed class. How can I write a code to load the assembly and the type. Thanks, Dattebayo... ...
Polymorphically convert Java enum values into a list of strings
I have a handful of helper methods that convert enum values into a list of strings suitable for display by an HTML <select> element. I was wondering if it's possible to refactor these into a single polymorphic method. This is an example of one of my existing methods: /** * Gets the list of available colours. * * @return the list o...
Using get type and then casting to that type in csharp
I have code like: var t = SomeInstanceOfSomeClass.GetType(); ((t)SomeOtherObjectIWantToCast).someMethodInSomeClass(...); That won't do, the compiler returns an error about the (t) saying Type or namespace expected. How can you do this? I'm sure it's actually really obvious.... ...
Creating an instance of a class that implements generic interface...
Ok I have a generic interface public IConfigurationValidator<T> { void Validate(); } a class that implements it: public class SMTPServerValidator : IConfigurationValidator<string> { public void Validate(string value) { if (string.IsNullOrEmpty(value)) { throw new Exceptio...
Using reflection to set the value of an Int32
I want to use reflection to set some fields according to data from a file. The information that I can have is TypeName, TypeValue and FieldName. While this is trivial on classes (Activator.CreateInstance and PropertyInfo.SetValue), I am a bit dumbstruck when it comes to value types like Int32 which does not have any properties. I see th...
Disadvantages of CallbyName Function in VB.NET?
Are there any disadvantages in performance by using the CallByName function in VB.NET? Is there any better way to do the call by Name in .NET 2.0 onwards. ...
How to create an interface at Runtime
Assuming I have a class like public class FooImpl { public void bar(){}; } Is there a way to create its interface at runtime? e.g. public interface Foo { public void bar(); } I have been looking into Javasssist and the truth is it's reflection that I'm interested in using the interface for (as Esko Luontola and Yishai stat...
How to find all the types in an Assembly that Inherit from a Specific Type C#
How do you get a collection of all the types that inherit from a specific other type? ...
How do I get the classname of an aspx page from inside a user control?
I would like to assertain the class name of an aspx page from within a user control. How can I go about doing this? ...
Matching types using reflection in .NET
Hi, I am trying to use reflection to collect a property from a class that returns a certain type. However some of the properties I'm returning are strongly typed lists that house the type I want. Essentially I am trying to do the following: Public Function GetPropertyInfo(ByVal t as System.Type) for each pi as System.Reflection.Prop...
Is there a way to get the name of a variable? PHP - Reflection
I know this is not exactly reflection, but kind of. I want to make a debug function that gets a variable and prints a var_dump and the variable name. Of course, when the programmer writes a call to the function, they already know the variable's name, so they could write something like: debug( $myvar, 'myvar' ); But I want it to be qui...
Generate dynamic method to set a field of a struct instead of using reflection
Let's say I have the following code which update a field of a struct using reflection. Since the struct instance is copied into the DynamicUpdate method, it needs to be boxed to an object before being passed. struct Person { public int id; } class Test { static void Main() { object person = RuntimeHelpers.GetObject...
Dynamic Class Loading in Java (Enumeration)
Hi, I have a problem, I wish to use reflection to generate instances of one of a set of classes at runtime. However, I have hit a snag. I want to get all of the classes involved to register themselves so the appropriate class can be chosen from a GUI. I can do this using a static code block in each file which provides a tidy OO solution...