private void removeButton_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Are you sure?", "delete student", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
StuDB student = new StuDB();
int id = Convert.ToInt32(AF_id_txt.Text);
if (MessageBox.Show("Are you sure?", "delete student", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
if (student.deleteStudent(id))
{
MessageBox.Show("Done", "delete student", MessageBoxButtons.OK, MessageBoxIcon.Information);
AF_address_txt.Text = "";
AF_dob_txt.Value = DateTime.Now;
AF_id_txt.Text = "";
AF_fullname_txt.Text = "";
AF_phone_txt.Text = "";
AF_picture_pic = null;
}
else
{
MessageBox.Show("Error", "delete student", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
}
private void statics_Load(object sender, EventArgs e)
{
DB mydb = new DB();
panTotalColor = PanelTotal.BackColor;
panMaleColor = PanelMale.BackColor;
panFemaleColor = PanelFemale.BackColor;
StuDB student = new StuDB();
mydb.openConnectionState();
SqlDataAdapter adapter = new SqlDataAdapter("Select * from student11 ", mydb.GetConnection);
DataTable table = new DataTable();
adapter.Fill(table);
double total = Convert.ToDouble(table.Rows.Count);
SqlDataAdapter adapter1 = new SqlDataAdapter("Select * from student11 where gender ='Male '", mydb.GetConnection);
DataTable table1 = new DataTable();
adapter1.Fill(table1);
double totalMale = Convert.ToDouble(table1.Rows.Count);
SqlDataAdapter adapter2 = new SqlDataAdapter("Select * from student11 where gender ='Female '", mydb.GetConnection);
DataTable table2 = new DataTable();
adapter2.Fill(table2);
double totalFemale = Convert.ToDouble(table2.Rows.Count);
mydb.closeConnection();
double maleStudentsPercentage = (totalMale * (100 / total));
double femaleStudentsPercentage = (totalFemale * (100 / total));
LabelTotal.Text = ("Total Students: " + total.ToString());
maleLable.Text = ("Male : " + (maleStudentsPercentage.ToString("0.00") + "%"));
Female.Text = ("Female : " + (femaleStudentsPercentage.ToString("0.00") + "%"));
if (femaleStudentsPercentage == 0)
{
chart2.Series["s1"].Points.AddXY("Male", "" + maleStudentsPercentage);
}
else if (maleStudentsPercentage == 0)
{
chart2.Series["s1"].Points.AddXY(" ", "" + maleStudentsPercentage);
chart2.Series["s1"].Points.AddXY("Female", "" + femaleStudentsPercentage);
}
else
{
chart2.Series["s1"].Points.AddXY("Male", "" + maleStudentsPercentage);
chart2.Series["s1"].Points.AddXY("Female", "" + femaleStudentsPercentage);
}
}
public DataTable MakeStudentScoreResultTable()
{
try
{
StuDB student = new StuDB();
COURSE course = new COURSE();
SCORE score = new SCORE();
//create column
DataTable result = student.getAllBriefInfo();
result.Columns[0].ColumnName = "Id";
result.Columns[1].ColumnName = "Full Name";
DataTable coursesLabel = course.allLabel_IdOrder();
DataTable briefInfo = student.getAllBriefInfo();
DataTable scores = score.getALL_IdCourseOrder();
DataTable avgScore = score.getAvg_byStudent();
for (int i = 0; i < coursesLabel.Rows.Count; i++)
{
result.Columns.Add(coursesLabel.Rows[i][1].ToString().Trim());
}
result.Columns.Add("Result");
//fill score to table
int scoreRow = 0;
for (int row = 0; row < result.Rows.Count; row++)
{
int courseIndex = 0;
while (result.Rows[row][0].ToString().Trim() == scores.Rows[scoreRow][0].ToString().Trim())
{
result.Rows[row][courseIndex + 3] = scores.Rows[scoreRow][2].ToString().Trim();
courseIndex++;
scoreRow++;
if (scoreRow > scores.Rows.Count - 1)
{
break;
}
}
}
for (int row = 0; row < result.Rows.Count; row++)
{
result.Rows[row][result.Columns.Count - 1] = avgScore.Rows[row][1].ToString().Trim();
}
return(result);
}
catch (Exception)
{
throw;
}
}
private void edit_Click(object sender, EventArgs e)
{
StuDB student = new StuDB();
int id = Convert.ToInt32(ER_id_txt.Text);
string fname = ER_name_txt.Text;
DateTime dob = ER_dob1.Value;
string phone = ER_phone_txt.Text;
string address = ER_address_txt.Text;
string gender = "Other";
if (ER_male.Checked)
{
gender = "Male";
}
if (ER_female.Checked)
{
gender = "Female";
}
MemoryStream pic = new MemoryStream();
int born_year = ER_dob1.Value.Year;
int this_year = DateTime.Now.Year;
if (((this_year - born_year) < 10) || ((this_year - born_year) > 100))
{
MessageBox.Show("The student's age must be between 10 and 100 years old", "Invalid Date of birth", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (Verify())
{
ER_picture.Image.Save(pic, ER_picture.Image.RawFormat);
if (student.updateStudent(id, fname, dob, gender, phone, address, pic))
{
MessageBox.Show("Student update successfully!", "Add student", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Error!", "update student", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("Empty fields", "edit student", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
private void saveButton_Click(object sender, EventArgs e)
{
StuDB student = new StuDB();
int id = Convert.ToInt32(AF_id_txt.Text);
string fname = AF_fullname_txt.Text;
DateTime dob = AF_dob_txt.Value;
string phone = AF_phone_txt.Text;
string address = AF_address_txt.Text;
string gender = "Other";
if (AF_male_check.Checked)
{
gender = "Male";
}
if (AF_female_check.Checked)
{
gender = "Female";
}
MemoryStream pic = new MemoryStream();
int born_year = AF_dob_txt.Value.Year;
int this_year = DateTime.Now.Year;
if (((this_year - born_year) < 10) || ((this_year - born_year) > 100))
{
MessageBox.Show("The student's age must be between 10 and 100 years old", "Invalid Date of birth", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (Verify())
{
AF_picture_pic.Image.Save(pic, AF_picture_pic.Image.RawFormat);
if (student.insertStudent(id, fname, dob, gender, phone, address, pic))
{
MessageBox.Show("New student added successfully!", "Add student", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.Close();
}
else
{
MessageBox.Show("Error!", "Add student", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("Empty fields", "Add student", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
private void button1_Click(object sender, EventArgs e)
{
string name = search_txt.Text;
if (search_txt.Text.Trim() == "")
{
MessageBox.Show("Error", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
DB dataBase = new DB();
SqlCommand command = new SqlCommand(
"SELECT id, fullname, dob, gender, phone, address, picture FROM student11 WHERE address = @address or fullname = @address", dataBase.GetConnection);
command.Parameters.Add("@address", SqlDbType.NVarChar).Value = search_txt.Text;
dataBase.openConnectionState();
StuDB student = new StuDB();
DataTable table = student.getStudents(command);
if (table.Rows.Count > 0)
{
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = command;
DataSet dataSet = new DataSet();
adapter.Fill(dataSet, "std");
dataBase.closeConnection();
listStu.RowTemplate.Height = 50;
DataTable table1 = dataSet.Tables["std"];
listStu.DataSource = table1;
listStu.ReadOnly = true;
DataGridViewImageColumn imageColumn = new DataGridViewImageColumn();
imageColumn = (DataGridViewImageColumn)listStu.Columns[6];
imageColumn.ImageLayout = DataGridViewImageCellLayout.Stretch;
listStu.AllowUserToAddRows = false;
}
else
{
MessageBox.Show("not found", "Find Student", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
}
