formloader.cs

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using System;
using System.IO;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using Microsoft.CSharp;
using System.CodeDom.Compiler;
using System.Collections.Specialized;
using System.Reflection;


namespace FormExport {

    public class FormLoader {
        public static  Form LoadFromAssembly( String path ){
            System.Console.WriteLine( "Trying to load from " + path );
            Assembly thisAssembly;

            thisAssembly = Assembly.LoadFrom( path );

            Type [] typeArray = thisAssembly.GetTypes();
            for( int i = 0 ; i < typeArray.Length ; i++ ) {
                if ( typeArray[i].BaseType.FullName ==
                                "System.Windows.Forms.Form" ) {
                    System.Console.WriteLine( "Found a form" );
                    ConstructorInfo constructorInfoObj =
                        typeArray[i].GetConstructor( Type.EmptyTypes);
                    return (Form)constructorInfoObj.Invoke( new Object[0] );
                }
                System.Console.WriteLine( "No forms found" );
                return null;
            }
            return null;
        }
        public static  Form LoadFromSource( String path ){

            System.Console.WriteLine( "Trying to load from " + path );

            CSharpCodeProvider  cscp = new CSharpCodeProvider();
            ICodeCompiler c = cscp.CreateCompiler();

            CompilerParameters cp = new CompilerParameters();

            cp.ReferencedAssemblies.Add("System.Drawing.dll");
            cp.ReferencedAssemblies.Add("System.Data.dll");
            cp.ReferencedAssemblies.Add("System.Windows.Forms.dll");
            foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
            {
                cp.ReferencedAssemblies.Add(asm.Location);
            }

            CompilerResults cr = c.CompileAssemblyFromFile( cp, path );


            int nRes = cr.NativeCompilerReturnValue;
            if ( nRes != 0 ) {
                System.Console.WriteLine( "Failed to compile " + path );
                StringCollection sc = cr.Output;
                for( int i = 0 ; i < sc.Count ; i++ )
                    System.Console.WriteLine( sc[i] );
                return null;
            }

            System.Console.WriteLine( "Loaded" );
            Assembly thisAssembly;
            thisAssembly = Assembly.LoadFrom( cr.PathToAssembly);

            Type [] typeArray = thisAssembly.GetTypes();
            for( int i = 0 ; i < typeArray.Length ; i++ ) {
                if ( typeArray[i].BaseType.FullName ==
                                "System.Windows.Forms.Form" ) {
                    System.Console.WriteLine( "Found a form" );
                    ConstructorInfo constructorInfoObj =
                        typeArray[i].GetConstructor( Type.EmptyTypes);
                    return (Form)constructorInfoObj.Invoke( new Object[0] );
                }
                System.Console.WriteLine( "No forms found" );
                return null;
            }


            return null;
        }

    }
}