C Reflection How to get class reference from string

Question

I want to do this in C   but I don t know how   I have a string with a class name -e g  FooClass and I want to invoke a  static  method on this class    FooClass MyMethod      Obviously  I need to find a reference to the class via reflection  but how

User · Answer

Bit late for reply but this should do the trick

Type myType = Type.GetType("AssemblyQualifiedName");

your assembly qualified name should be like this

"Boom.Bam.Class, Boom.Bam, Version=1.0.0.262, Culture=neutral, PublicKeyToken=e16dba1a3c4385bd"

User · Answer

You will want to use the Type GetType method   Here is a very simple example   using System  using System Reflection   class Program       static void Main                 Type t   Type GetType  Foo            MethodInfo method                 t GetMethod  Bar   BindingFlags Static   BindingFlags Public            method Invoke null  null            class Foo       public static void Bar                 Console WriteLine  Bar              I say simple because it is very easy to find a type this way that is internal to the same assembly   Please see Jon s answer for a more thorough explanation as to what you will need to know about that   Once you have retrieved the type my example shows you how to invoke the method

User · Answer

You can use Type GetType string   but you ll need to know the full class name including namespace  and if it s not in the current assembly or mscorlib you ll need the assembly name instead   Ideally  use Assembly GetType typeName  instead - I find that easier in terms of getting the assembly reference right    For instance       I know String is in the same assembly as Int32     Type stringType   typeof int  Assembly GetType  System String         It s in the current assembly  Type myType   Type GetType  MyNamespace MyType         It s in System Windows Forms dll     Type formType   Type GetType   System Windows Forms Form            System Windows Forms  Version 2 0 0 0  Culture neutral            PublicKeyToken b77a5c561934e089

User · Answer

We can use      Type GetType     to get class name and can also create object of it using Activator CreateInstance type    using System  using System Reflection   namespace MyApplication       class Application               static void Main                         Type type   Type GetType  MyApplication Action                if  type    null                                throw new Exception  Type not found                               var instance   Activator CreateInstance type                 or             var newClass   System Reflection Assembly GetAssembly type  CreateInstance  MyApplication Action                         public class Action               public string key   get  set            public string Value   get  set

User · Answer

Via Type GetType you can get the type information  You can use this class to get the method information and then invoke the method  for static methods  leave the first parameter null    You might also need the Assembly name to correctly identify the type      If the type is in the currently   executing assembly or in Mscorlib dll    it is sufficient to supply the type   name qualified by its namespace

User · Answer

A simple use   Type typeYouWant   Type GetType  NamespaceOfType TypeName  AssemblyName      Sample   Type dogClass   Type GetType  Animals Dog  Animals

[c#] C# Reflection: How to get class reference from string?

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