Problem solve Get help with specific problems with your technologies, process and projects.

Dynamic invocation in C#

The example in this tip has methods that will be dynamically invoked at runtime from the DynaInvoke.cs.

Please let other users know how useful this tip is by rating it below. And, submit your own .NET tip or code here.


One very useful feature related to reflection is the ability to create objects dynamically and call methods on them. Class1.cs below has methods that will be dynamically invoked at runtime from the DynaInvoke.cs.

Class1.cs

using System;
class Class1{
       public static String method1()
       {
           return "I am Static method (method1) in class1";
       }
       public String method2()
       {
           return "I am a Instance Method (method2) in Class1";
       }
       public String method3(String s)
       {
          return "Hello " + s;
       }
} 

Save this file as Class1.cs and Compile c:/>csc /t:library Class1.cs.

DynaInvoke.cs

using System;
using System.Reflection;
class DynamicInvoke
{
public static void Main(String [] args)
{ 

String path =  "Class1.dll"
Assembly a = Assembly.Load(path); 

//Invoking a static method
Type mm = a.GetType("Class1");
String i = (String) mm.InvokeMember ("method1",BindingFlags.Default | 
BindingFlags.InvokeMethod,null,null,new object [] {}); Console.WriteLine(i); 

//Invoking a non-static method
object o = Activator.CreateInstance(mm);
i = (String) mm.InvokeMember("method2",BindingFlags.Default | 
BindingFlags.InvokeMethod,null,o,new object [] {}); 
Console.WriteLine(i); 

//Invoking a non-static method with parameters
object [] par = new object[] {"kunal"};
i = (String) mm.InvokeMember("method3",BindingFlags.Default |
BindingFlags.InvokeMethod,null,o,par); 
Console.WriteLine(i);
}
} 

Save this file as DynaInvoke.cs and Compile c:/>csc DynaInvoke.cs  and run C:>DynaInvoke.

Dig Deeper on C# programming language

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

SearchCloudComputing

SearchSoftwareQuality

TheServerSide.com

Close