Late DLL binding

[John Jensen]

Hi

How do I make a late binding to a .NET DLL ?
Instead of adding a reference when compiling the .exe assembly I want to
be able to invoke a dll-file when my program is running?
Could anyone please help..


John

[Per Thygesen]

In C# you can use reflection.
--
Per Thygesen


"John Jensen" <john@birkkoff.dk> wrote in message
news:3aa79c6d$1@news.devx.com...
>
> Hi
>
> How do I make a late binding to a .NET DLL ?
> Instead of adding a reference when compiling the .exe assembly I want to
> be able to invoke a dll-file when my program is running?
> Could anyone please help..
>
>
> John

[John Jensen]

Could you give an example please..?

"Per Thygesen" <perthygesen@hotmail.com> wrote:
>In C# you can use reflection.
>--
>Per Thygesen
>
>
>"John Jensen" <john@birkkoff.dk> wrote in message
>news:3aa79c6d$1@news.devx.com...
>>
>> Hi
>>
>> How do I make a late binding to a .NET DLL ?
>> Instead of adding a reference when compiling the .exe assembly I want
to
>> be able to invoke a dll-file when my program is running?
>> Could anyone please help..
>>
>>
>> John
>
>

[Per Thygesen]

Sure.

Invoke.cs
-------------------------
using System;
using System.Reflection;

public class Invoke
{
public static void Main ()
{
Assembly asm = Assembly.LoadFrom(".\\Test.exe");

// Call a static method
Type t = asm.GetType("TestClass");
t.InvokeMember ("SayHello",
BindingFlags.Default | BindingFlags.InvokeMethod |
BindingFlags.Static,
null, null, new object [] {});

// Call instance method
object obj = Activator.CreateInstance(t);
t.InvokeMember ("SayHello2",
BindingFlags.Default | BindingFlags.InvokeMethod,
null, obj, new object [] {});
}
}

Test.cs
-------------------------
using System;

public class TestClass
{
public static void SayHello ()
{
Console.WriteLine ("Hello");
}

public void SayHello2 ()
{
Console.WriteLine ("Hello2");
}

public static void Main() {}
}

--
Per Thygesen

"John Jensen" <john@birkof.dk> wrote in message
news:3aa8b0f4@news.devx.com...
>
> Could you give an example please..?
>
> "Per Thygesen" <perthygesen@hotmail.com> wrote:
> >In C# you can use reflection.
> >--
> >Per Thygesen
> >
> >
> >"John Jensen" <john@birkkoff.dk> wrote in message
> >news:3aa79c6d$1@news.devx.com...
> >>
> >> Hi
> >>
> >> How do I make a late binding to a .NET DLL ?
> >> Instead of adding a reference when compiling the .exe assembly I want
> to
> >> be able to invoke a dll-file when my program is running?
> >> Could anyone please help..
> >>
> >>
> >> John
> >
> >
>

[John Jensen]

Thanks!!


"Per Thygesen" <perthygesen@hotmail.com> wrote:
>Sure.
>
>Invoke.cs
>-------------------------
>using System;
>using System.Reflection;
>
>public class Invoke
>{
> public static void Main ()
> {
> Assembly asm = Assembly.LoadFrom(".\\Test.exe");
>
> // Call a static method
> Type t = asm.GetType("TestClass");
> t.InvokeMember ("SayHello",
> BindingFlags.Default | BindingFlags.InvokeMethod |
>BindingFlags.Static,
> null, null, new object [] {});
>
> // Call instance method
> object obj = Activator.CreateInstance(t);
> t.InvokeMember ("SayHello2",
> BindingFlags.Default | BindingFlags.InvokeMethod,
> null, obj, new object [] {});
> }
>}
>
>Test.cs
>-------------------------
>using System;
>
>public class TestClass
>{
> public static void SayHello ()
> {
> Console.WriteLine ("Hello");
> }
>
> public void SayHello2 ()
> {
> Console.WriteLine ("Hello2");
> }
>
> public static void Main() {}
>}
>
>--
>Per Thygesen
>
>"John Jensen" <john@birkof.dk> wrote in message
>news:3aa8b0f4@news.devx.com...
>>
>> Could you give an example please..?
>>
>> "Per Thygesen" <perthygesen@hotmail.com> wrote:
>> >In C# you can use reflection.
>> >--
>> >Per Thygesen
>> >
>> >
>> >"John Jensen" <john@birkkoff.dk> wrote in message
>> >news:3aa79c6d$1@news.devx.com...
>> >>
>> >> Hi
>> >>
>> >> How do I make a late binding to a .NET DLL ?
>> >> Instead of adding a reference when compiling the .exe assembly I want
>> to
>> >> be able to invoke a dll-file when my program is running?
>> >> Could anyone please help..
>> >>
>> >>
>> >> John
>> >
>> >
>>
>
>