I got it :
protected void FormView1_Load(object sender, EventArgs e)
{
var ctrl = FormView1.FindFieldTemplate("name") as IBindableControl;
OrderedDictionary entityValues = new OrderedDictionary();
entityValues.Add("name", null); // I have to initialize before
ctrl.ExtractValues(entityValues); // Get values from FormView in this case only the article name field
string myVal = entityValues["name"].ToString(); // This is what i want
}
Thanks, Filipe Pinto