private void GrpStudisp_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == 4)
{
DialogResult result = MessageBox.Show("Are you sure you want to delete this Group Student?", "Group Student", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes)
{
try
{
con.Close();
con.Open();
int index = GrpStudisp.CurrentCell.RowIndex;
GrpStudisp.Rows[index].Selected = true;
string id = GrpStudisp.SelectedCells[1].Value.ToString();
SqlCommand cmd = new SqlCommand("DELETE FROM GroupStudent WHERE StudentId = '" + id + "';", con);
cmd.ExecuteNonQuery();
con.Close();
GrpStudisp.Rows.RemoveAt(index);
GrpStudisp.DataSource = dt1;
MessageBox.Show("Deleted!");
}
catch
{
con.Close();
MessageBox.Show("Something went wrong!");
}
}
else if (result == DialogResult.No)
{
updatepan.Hide();
upgrpstu.Hide();
panel5.Hide();
panel1.Hide();
GroupStudentPan.Hide();
stugrpdispan.Show();
}
}
if (e.ColumnIndex == 5)
{
DialogResult result = MessageBox.Show("Are you sure you want to Update this Group Student?", "GroupStudent", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes)
{
panel5.Hide();
panel1.Hide();
GroupStudentPan.Hide();
stugrpdispan.Hide();
upgrpstu.Show();
}
else
{
this.Hide();
Display obj = new Display();
obj.Show();
}
}
}
private void grpstuadd_Click(object sender, EventArgs e)
{
updatepan.Hide();
stugrpdispan.Hide();
// AddStudent.Hide();
panel5.Hide();
panel1.Hide();
GroupStudentPan.Show();
}
private void button1_Click(object sender, EventArgs e)
{
updatepan.Hide();
stugrpdispan.Hide();
upgrpstu.Hide();
panel5.Hide();
panel1.Show();
GroupStudentPan.Hide();
}
private void Form1_Load(object sender, EventArgs e)
{
disp_data(); //display data of Student
upgrpstu.Hide();
disp_data_grpstu();//display data of student group
//panel2.Hide();
GroupStudentPan.Hide();
updatepan.Hide();
panel5.Hide();
stugrpdispan.Hide();
panel1.Show();
}
