private void btn_addAnswer_Click(object sender, EventArgs e)
{
Answer_MultiSelect MultiChoiceAnswer = new Answer_MultiSelect();
i++;
MultiChoiceAnswer.Tag = i;
MultiChoiceAnswer.ID_Answer = i;
MultiChoiceAnswer.onDelete += OneChoiceAnswer_onDelete;
MultiChoiceAnswer.chk_Check.Text = Convert.ToChar(a).ToString();
flp_Answer.Controls.Add(MultiChoiceAnswer);
for (int j = 0; j < flp_Answer.Controls.Count; j++)
{
MultiChoiceAnswer.chk_Check.Text = Convert.ToChar(a + j).ToString();
}
}