c# 到 datagridview 的对象列表

Question

I Have the next object:

public partial class PEDIDOS

{

public PEDIDOS()
{
    this.ARTICULOS = new HashSet<ARTICULOS>();
}
public int id { get; set; }
public string descripcion { get; set; }
public PROVEEDORES PROVEEDORES { get; set; }

}

And the class PROVEEDORES:

public partial class PROVEEDORES
    {
    public PROVEEDORES()
    {
        this.PEDIDOS = new HashSet<PEDIDOS>();
    }

    public int id { get; set; }
    public string nombre { get; set; }
    public string codProveedor { get; set; }

}

And I Have a LIST of PEDIDOS.

I want to show this this list in a datagridview (windows forms):

dataGridView1.DataSource = lista;

Then I get this:

|id | descrpcion | PROVEEDORES                    |
--------------------------------------------------|
|1  | EXAMPLE    | system.data.dinamicproxyes.....|
|2  | example    | system.data.dinamicproxyes.....|
...

But I need that proveedores column, was the "nombre" field of PROVEEDORES's class:

|id | descrpcion | PROVEEDORES                    |
--------------------------------------------------|
|1  | EXAMPLE    | proveedor's name               |
|2  | example    | proveedor's name               |
    ...

Answer 1

You can create a lista this way:

var lista=  context.PEDIDOS.Select( i=>  new {
id=i.id,
description=i.description,
PROVEEDORES=i.ROVEEDORES.nombre
}).ToList();

....
dataGridView1.DataSource = lista;

Answer 2

One way to achieve what you describe is to override the PROVEEDORES ToString method. Something like…

public override string ToString() {
  return nombre;
}