>I am trying to find the way to catch when user press enter key on a datagrid cell and perform a method inside the form, i am using a selector form wich contains a datagrid as that one of Les Pinter's book in which he uses a "select" button to select the record, i could catch double click event in the textbox of the column that contains the key field through an event handler which catch's double clik on that particular textbox i want to do the same pressing "enter" key.
>I hope you 'd understood me and thank's in advance.

Juan,
There are atleast two events you can use for this: KeyUp and KeyPress.
Here is some code where I used KeyUp (it is C# but it should be easy to translate into VB.NET)

private void textBox1_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
{
	if (e.KeyCode == System.Windows.Forms.Keys.Enter)
	{
		MessageBox.Show("Enter button was pressed");
	}
}

Hope this helps.

Einar