.NET (Core and Framework)

public class LinqFilter<T> 
{
     public Fun<T,bool> GetFilter()
        {
              // in this function I made an Expression Tree after 
              // that i make lambda expression that return delegate 
              // this is not important for my problem
              // but I said that just to not write empty function .
              var predicate = Expression.Lambda. .... .
              return (Func<T,bool> )predicate.Compile();
        }
}

public Class FilterControl<font color="red"><T></font> : UserControl
{
      LinqFilter<T> F;
      ................
}

t <- assign some resolved Type
create an instance of FilterControl<t> dynamically and bind t to T
put the instance of FilterControl`1 on your form</t>

skmckkie wrote:

Is it some problem with RPC threads ?

snouto wrote:

but when i run multiple instances of the client program it tells me "the http channel is already registered"

snouto wrote:

Activator.GetObjcet

snouto wrote:

but you still didn't reply to me about the core problem

led mike wrote:

What happens if you try to Activate the second instance after that error?

snouto wrote:

your place is not here in code project