Is there a better way to call winform? C#

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C#

System.Reflection.Assembly asm;  
asm = System.Reflection.Assembly.LoadFrom("Test2.exe"); // get from different project but same application
var forms = (Form)Activator.CreateInstance(asm.GetType("Test2.Form1")); // call form
forms.Show(); // show form

Can I call Winform without using CreateInstance
As Create Instance is very slow

What I have tried:

I trying to use System.Reflection.Emit

but in the end still need to use CreateInstance

DynamicMethod method = new DynamicMethod("CreateInstance", Type.GetType("testing.Form2"), new Type[] { typeof(object[]) }, true);
(Form)Activator.CreateInstance(method);

Posted 4-Jul-16 14:41pm

Beginner Luck

Updated 12-Jul-16 16:53pm

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Beginner Luck · Answer 1 · 2016-07-12T16:53:00

Object[] args = new Object[] { };

var forms1 = (Form)Type.GetType("testing.Form2").InvokeMember(null, BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.CreateInstance, null, null, args);
forms1.Show();
Not sure any different from (Form)Activator.CreateInstance(method) but it work

Garth J Lancaster · Answer 2 · 2016-07-04T15:02:00

Solution 1

yes, in the end, you still need to use CreateInstance

... that doesnt mean you cant be smarter about when you do this though - if you knew you were going to load 'testing.Form2' from 'Test2.Exe' when your program loaded, then, you could 'bootstrap' the process in a background thread while your main Winform project is loading (much like a plug-in system loading its plugins from dlls in a directory would)

Posted 4-Jul-16 15:02pm

Garth J Lancaster

Comments

Beginner Luck 4-Jul-16 21:24pm

I saw ILGenerator but do it also need CreateInstance ??

Garth J Lancaster 5-Jul-16 0:04am

I dont know sorry, it *may* be possible, but faster ? try both methods and compare them