// Getting evaluation modes from Database and apply to the labels
public void Get_Evaluation_Modes_For_Labels()
{
string commandText1 = "SELECT * from Evaluation where subject_id = (SELECT subject_id FROM Subject where subject_name = @s2_name)";
try
{
using (SqlCommand cmd = new SqlCommand(commandText1, sqlConnection1))
{
cmd.Parameters.AddWithValue("@s2_name", SubjectComboBox.SelectedItem);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
Eval_1_Marks_Label.Text = "Marks for " + reader.GetString(1) + " :";
Eval_2_Marks_Label.Text = "Marks for " + reader.GetString(2) + " :";
Eval_3_Marks_Label.Text = "Marks for " + reader.GetString(3) + " :";
}
reader.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
Eval_1_Marks_txtbox.Clear();
Eval_2_Marks_txtbox.Clear();
Eval_3_Marks_txtbox.Clear();
}
private void Eval_2_Marks_txtbox_Leave(object sender, EventArgs e)
{
int number;
if (int.TryParse(Eval_2_Marks_txtbox.Text, out number))
{
if (number < 0 || number > 25)
{
Eval_2_Marks_txtbox.Clear();
MessageBox.Show("Enter Between 0 and 25 only");
}
}
}