Update Not Writing To Database

Hello,
 I am trying to update a few records in my table everything seems to work fine when I hit the submit button. But it does not acutally end up writing to the database... Can someone tell me if they see anything wrong with what I have for code?
 
public void SaveData()
{
//declare sql connection
SqlConnection SQLConn = new SqlConnection();
SQLConn.ConnectionString = base.m_CharterBase.GetSiteKey("EDCCConnectString");
SqlCommand Cmd = new SqlCommand();
//Open Connections
SQLConn.Open();
//Set command properties
Cmd.Connection = SQLConn;
Cmd.CommandText =
"Declare @ID as Int " +
"UPDATE [TD_FSCL_PayPeriod] " +
"Set [Quota] = @Quota, [LastChangeDate] = getdate(), [LastChangeID] = @LastChangeID, [LastChangeBy] = @LastChangeBy " +
" where [ID] = @ID";
 
//Set parameter value
SqlParameter parmQuota = new SqlParameter();
parmQuota.DbType = DbType.Int16;
parmQuota.ParameterName = "@Quota";
parmQuota.Value = txtQuota.Text;
SqlParameter parmLastChangeID = new SqlParameter();
parmLastChangeID.DbType = DbType.Int32;
parmLastChangeID.ParameterName = "@LastChangeID";
parmLastChangeID.Value = Master.curUser.User_ID;
SqlParameter parmLastChangeBy = new SqlParameter();
parmLastChangeBy.DbType = DbType.String;
parmLastChangeBy.ParameterName = "@LastChangeBy";
parmLastChangeBy.Value = Master.curUser.Domain_Login;
 
//Add to parameters collection
Cmd.Parameters.Add(parmQuota);
Cmd.Parameters.Add(parmLastChangeID);
Cmd.Parameters.Add(parmLastChangeBy);
 
//Fire the query
Cmd.ExecuteNonQuery();
//Close Connection
SQLConn.Close();
}
 
 
protected void btnSubmit_click(Object sender, EventArgs e)
{
// run save method and then clear method
SaveData();
clear_page();
}