/// <summary>
/// When the client select the rating that wants to edit the not necessarily labels, tetxboxes and comboboxes are hiding
/// from the form and then the neccesarily labels, tetxboxes and comboboxes are pop up. Then fills all the fields with
/// the data of the selected rating.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnSelect_Click(object sender, EventArgs e)
{
LblBusiness.Show();
LblDate.Show();
LblPerson.Show();
LblUsername.Show();
CmbBusiness.Show();
CmbUsername.Show();
BtnEdit.Show();
TbxPerson.Show();
DtpDate.Show();
LblSelect.Hide();
CmbSelect.Hide();
BtnSelect.Hide();
SelectedData = DCom.GetData(String.Format(SqlExec, CmbSelect.SelectedValue));
TbxPerson.Text = SelectedData.Rows[0]["Persons"].ToString();
CmbBusiness.DataSource = DCom.GetData("SELECT businesses.ID, CONCAT(businesses.Business_Name, ', ', location.Address_Name, ', ', location.Municipality) AS NAME FROM businesses, location WHERE businesses.Location_ID = location.ID");
CmbBusiness.DisplayMember = "NAME";
CmbBusiness.ValueMember = "ID";
CmbUsername.DataSource = DCom.GetData("SELECT * FROM users");
CmbUsername.DisplayMember = "Username";
CmbUsername.ValueMember = "Username";
CmbUsername.Text = SelectedData.Rows[0]["User"].ToString();
CmbBusiness.Text = SelectedData.Rows[0]["BusinessID"].ToString();
}