private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == 5)
{
listPanel[++index].BringToFront();
nameText.Text = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();
lastnameText.Text = dataGridView1.Rows[e.RowIndex].Cells[2].Value.ToString();
emailText.Text = dataGridView1.Rows[e.RowIndex].Cells[3].Value.ToString();
phoneText.Text = dataGridView1.Rows[e.RowIndex].Cells[4].Value.ToString();
btnAddStudent.Enabled = false;
btnAdd.Enabled = false;
btnAdd.Visible = false;
btnEdit.Enabled = true;
btnEdit.Visible = true;
valueIndex = int.Parse(dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString());
}
if (e.ColumnIndex == 6)
{
using (var context = new StudentsEntities())
{
int value = int.Parse(dataGridView1.Rows[e.RowIndex].Cells[0].Value.ToString());
var entity = context.students_table.First(s => s.id.Equals(value));
context.students_table.Remove(entity);
context.SaveChanges();
}
MessageBox.Show("Student deleted");
StudentsEntities dbe = new StudentsEntities();
BindingSource bs = new BindingSource();
dataGridView1.DataSource = null;
List <students_table> students1 = dbe.students_table.ToList();
bs.DataSource = students1;
dataGridView1.DataSource = bs;
}
}
private void button1_Click(object sender, EventArgs e)
{
StudentsEntities context = new StudentsEntities();
dataGridView1.DataSource = (from model in context.students_table
where model.name == searchName.Text
select model).ToList();
}
public void UpdateDG()
{
// update datagrid
StudentsEntities dbe = new StudentsEntities();
BindingSource bs = new BindingSource();
dataGridView1.DataSource = null;
List <students_table> students1 = dbe.students_table.ToList();
bs.DataSource = students1;
dataGridView1.DataSource = bs;
btnAddStudent.Enabled = true;
}
private void btnAdd_Click(object sender, EventArgs e)
{
model.name = nameText.Text.Trim();
model.lastname = lastnameText.Text.Trim();
model.email = emailText.Text.Trim();
model.phone = phoneText.Text.Trim();
using (StudentsEntities db = new StudentsEntities())
{
db.students_table.Add(model);
db.SaveChanges();
}
MessageBox.Show("Student added!");
nameText.Text = "";
lastnameText.Text = "";
emailText.Text = "";
phoneText.Text = "";
if (index > 0)
{
listPanel[--index].BringToFront();
}
UpdateDG();
}
private void btnEdit_Click(object sender, EventArgs e)
{
btnAdd.Enabled = true;
using (var context = new StudentsEntities())
{
var entity = context.students_table.FirstOrDefault(item => item.id == valueIndex);
if (entity != null)
{
entity.name = nameText.Text.Trim();
entity.lastname = lastnameText.Text.Trim();
entity.email = emailText.Text.Trim();
entity.phone = phoneText.Text.Trim();
context.SaveChanges();
}
}
MessageBox.Show("Student Updated!");
nameText.Text = "";
lastnameText.Text = "";
emailText.Text = "";
phoneText.Text = "";
UpdateDG();
}
