Load form with reflection

[Rogerio Jun]

Hi

I try load a form with reflection :

Assembly myAssembly = Assembly.LoadFrom(dtr.GetString(0));
Form frmForm = myAssembly.CreateInstance("Nox.Grade") as Form;

but a NullReferenceException is generated.

If I use

Type type = Assembly.GetType("Nox.Grade")

it's Ok.

What is wrong ?

Are you checking to see if myAssembly is null? Is dtr null? What does the
stack trace tell you? On what line is the exception thrown?

- john

Rogerio Jun <Ro********@discussions.microsoft.com> wrote:

Hi

I try load a form with reflection :

Assembly myAssembly = Assembly.LoadFrom(dtr.GetString(0));
Form frmForm = myAssembly.CreateInstance("Nox.Grade") as Form;

but a NullReferenceException is generated.

If I use

Type type = Assembly.GetType("Nox.Grade")

it's Ok.

What is wrong ?

[Rogerio Jun]

My form have a Datagrid. If I delete the DataGrid, the form load, but with
DataGrid the exception is showed.

myAssembly is null? no
Is dtr null? no
On what line is the exception thrown? in createinstance
Rogerio

"co******@tetra.xionheights.net" wrote:

Are you checking to see if myAssembly is null? Is dtr null? What does the
stack trace tell you? On what line is the exception thrown?

- john

Rogerio Jun <Ro********@discussions.microsoft.com> wrote:

Hi

I try load a form with reflection :

Assembly myAssembly = Assembly.LoadFrom(dtr.GetString(0));
Form frmForm = myAssembly.CreateInstance("Nox.Grade") as Form;

but a NullReferenceException is generated.

If I use

Type type = Assembly.GetType("Nox.Grade")

it's Ok.

What is wrong ?