private void SelectedItemFormStatistic(object sender, EventArgs e) { text020.Text = "" + 0; text2140.Text = "" + 0; text4160.Text = "" + 0; text6180.Text = "" + 0; text81100.Text = "" + 0; text100must.Text = "" + 0; MySqlConnection connection = MyMySQLConnection.ConnectionSingleton(); connection.Open(); Form form = StatisticFormList.SelectedItem as Form; List <Result> resultList = resultdata.GetListForForm(connection, form); StatisticResultList.ItemsSource = resultList; int number020 = 0; int number2140 = 0; int number4160 = 0; int number6180 = 0; int number81100 = 0; int number100m = 0; foreach (Result result in resultList) { int resultPoint = result.Point; if (resultPoint <= 20) { number020++; } else if (resultPoint <= 40) { number2140++; } else if (resultPoint <= 60) { number4160++; } else if (resultPoint <= 80) { number6180++; } else if (resultPoint <= 100) { number81100++; } else if (number100m <= 1000) { number100m++; } text020.Text = "" + number020; text2140.Text = "" + number2140; text4160.Text = "" + number4160; text6180.Text = "" + number6180; text81100.Text = "" + number81100; text100must.Text = "" + number100m; } connection.Close(); }