reflection

WPF UserControl to DLL Programatically

I am generating a WPF UserControl in code that I would like to save as a DLL for use in a different application. The process of saving the DLL needs to be fully automated. Would it be better to try to do this with System.Reflection or by shelling out to csc? Or, is there an even better way to do this? John ...

Modifying a type after it has been created with TypeBuilder.CreateType

I'm creating a dynamic class in a dynamic assembly at runtime, and want to be able to Define methods for that class on demand. Ex. Build the Type X Define Method GetA on Type X Create Type X Call GetA use same type builder for Type X Define new Method GetB on Type X Recreate type X, that now has both GetA and GetB if that is impossi...

How to read comment blocks in PHP?

I'm doing some home-brewed automated documentation, since I have a codebase which is not very standard in its layout, and I was wondering what the best way was to read a PHP file and grab the contents of a comment block. The only way I can think to do it is to open the file and read it line-by-line, but thought that maybe there was some ...

Using Case/Switch and GetType to determine the object

If you want to switch on a type of object, what is the best way to do this? Code snippet private int GetNodeType(NodeDTO node) { switch (node.GetType()) { case typeof(CasusNodeDTO): return 1; case typeof(BucketNodeDTO): return 3; case typeof(BranchNodeDTO): return 0; ...

Determining if an Object is of primitive type.

I have an Object[] array, and I am trying to find the ones that are primitives. I've tried to use Class.isPrimitive(), but it seems I'm doing something wrong: int i = 3; Object o = i; System.out.println(o.getClass().getName() + ", " + o.getClass().isPrimitive()); prints java.lang.Integer, false. Is there a right w...

process items in Generic list/collections with Reflection

I have a generic class that I am using Reflection to pull out the properties of the type of the generic and looking for an attribute. I am recursing into each property to do the same for each of their properties. My issue is when I come to some sort of collection property (property that is a collection) or ICollection property. I will...

How do I attach a method to a dynamically-created C# type at runtime?

I have been saddled with using an in-house data access library that is effectively XML passed to a stored procedure, which returns XML. There is nothing I can do about this. I tried to get ActiveRecord approved, but my request was declined. However, using the excellent code provided at http://blog.bodurov.com/Post.aspx?postID=27, I added...

Reflection with Powershell

I have a set of .NET Assemblies (all under the same directory) and some of those contain classes which implement an abstract class. I would like a Powershell script to find all the classes which implement my abstract class, and execute a method on each of them. Does anybody have an idea on how to do this? Thanks! ...

Convert a Method to C# source Code

I am writing a fairly simple code gen tool, and I need the ability to convert MSIL (or MethodInfo) objects to their C# source. I realize Reflector does a great job of this, but it has the obnoxious "feature" of being UI only. I know I could just generate the C# strings directly, using string.Format to insert the variable portions, but...

What's the right way to check for inheritance from a class/interface?

The code below is looping through a dictionary of strings and IMyCompanySettings looking for values that implement IMyCompanyProductSetting. Clearly, trying to cast and raising an exception is a very expensive way to do this. public static List<IMyCompanyProductSetting> GetProductSettings(ConfigurationManager cfm) { List...

Can I Instantiate a class using the class object? What about Constructors?

I am storing a list of classes through (Classname.class) and would like to instantiate one? Is this possible? newInstance seems to the method I am after but it doesn't support a constructor? ...

c# - How do you get a variable's name as it was physically typed in its declaration?

The class below contains the field city. I need to dynamically determine the field's name as it is typed in the class declaration i.e. I need to get the string "city" from an instance of the object city. I have tried to do this by examining its Type in DoSomething() but can't find it when examining the contents of the Type in the debug...

Reflection - Get the list of method calls inside a lambda expression

Hello all, I am trying to find a way to get the list of method calls inside a lambda expression in C# 3.5. For instance, in the code below, I would like to method LookAtThis(Action a) to analyze the content of the lambda expression. In other words, I want LookAtThis to return me the MethodInfo object of Create. LookAtThis(() => Create...

Finding all classes with a particular attribute

I've got a .NET library in which I need to find all the classes which have a custom attribute I've defined on them, and I want to be able to find them on-the-fly when an application is using my library (ie - I don't want a config file somewhere which I state the assembly to look in and/ or the class names). I was looking at AppDomain.Cu...

Use reflection to iterate over class members

I have a class with numerous parameters of various types. I want to iterate over all type A members , and run a specific functions ( A.doSomething() ) This doesn't even compile: The conversion from field to XPathDataElement is illegal Field[] fields = this.getClass().getDeclaredFields(); for (Field field : fields) { if (field. g...

Using reflection to check if a method is "Extension Method"

As part of my application I have a function that receives a MethodInfo and need to do specific operations on it depending if that method is "Extension Method". I've checked the MethodInfo class and I could not find any IsExtension property or flag that shows that the method is extension. Does anyone knows how can I find that from the m...

Generify-ing The .NET Background Worker

We're working on a Windows App that periodically has to launch operations which may take some time. We've gotten into a pattern of having these operations run on a BackgroundWorker, and writing up a quick WinForm for each operation, where you pass in to the form the necessary parameters, the form wires up the BackgroundWorker and makes ...

C#: Can someone explain the practicalities of reflection?

So I tried searching SO hoping someone had a good explanation of this, with no luck. I asked another friend of mine a different question (which I've now forgotten) and his answer was simply "reflection" before he signed off. I am still very new to the C# world, having been an amateur VB.net programmer (also JavaScript, ActionScript, an...

How do you dynamically get a particular method's name in a strongly typed way?

Hi, I'm a little unsure how to word the title to this question but I'm looking for a the shortest/aseist way in VB.NET (or C# but using VB.NET at the moment) to get the string value of a method's name dynamically given the method call. For instance, I have a class like this: Public Class Blah Public Sub Foo() End Sub End Class...

Framework class for parsing type names?

I have strings containing fully qualified type names a la this MSDN document. I'm wondering if there is a Framework class that will help me parse out the various components (e.g. generic type parameters). Note that I can't simply load the Type with Type.GetType and inspect its properties because the type specified by the string may not...