protected void DropDownListAlignementQuestion_SelectedIndexChanged(object sender, EventArgs e)
{
Trace.Warn("DropDownListAlignementQuestion_SelectedIndexChanged");
DropDownListGridView ddl = ( DropDownListGridView )sender;
int indexe = int.Parse(ddl.Valeur);
Guid questionGuid = new Guid(GridViewQuestion.DataKeys[indexe].Value.ToString());
PollQuestion question = PollQuestion.GetQuestion(questionGuid);
question.AlignementQuestion = ddl.SelectedValue;
PollQuestion.UpdateAlignementQuestion(question);
}