private void delete_records()
{
int RowsAffected = 0;
cc.con = new SqlConnection(cs.DBConn);
cc.con.Open();
string ct = "delete from Student where C_ID=@d1";
cc.cmd = new SqlCommand(ct);
cc.cmd.Connection = cc.con;
cc.cmd.Parameters.AddWithValue("@d1", txtID.Text);
RowsAffected = cc.cmd.ExecuteNonQuery();
if (RowsAffected > 0)
{
st1 = lblUser.Text;
st2 = "deleted the Student'" + label6 + "' having Student id '" + txtStudentID.Text + "'";
cf.LogFunc(st1, System.DateTime.Now, st2);
MessageBox.Show("Successfully deleted", "Record", MessageBoxButtons.OK, MessageBoxIcon.Information);
Reset();
}
else
{
MessageBox.Show("No Record found", "Sorry", MessageBoxButtons.OK, MessageBoxIcon.Information);
Reset();
}
if (cc.con.State == ConnectionState.Open)
{
cc.con.Close();
}
/* catch (Exception ex)
* {
* MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
* }*/
}
//Update the data
//---------------
private void btnUpdate_Click(object sender, EventArgs e)
{
if (txtStudentID.Text == "")
{
MessageBox.Show("Please enter student name", "", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtStudentID.Focus();
return;
}
if (txtYear.Text == "")
{
MessageBox.Show("Please enter year", "", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtYear.Focus();
return;
}
if (txtTerm.Text == "")
{
MessageBox.Show("Please enter term", "", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtTerm.Focus();
return;
}
if (txtPresentAbsent.Text == "")
{
MessageBox.Show("Please enter PresentAbsent.", "", MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtPresentAbsent.Focus();
return;
}
cc.con = new SqlConnection(cs.DBConn);
cc.con.Open();
string cb = "Update Student set StudentID=@d2,Name=@d3,Year=@d4,Term=@d5,Subject=@d6,PresentAbsent=@d7,Photo=@d8 where C_ID=@d1";
cc.cmd = new SqlCommand(cb);
cc.cmd.Connection = cc.con;
cc.cmd.Parameters.AddWithValue("@d1", txtID.Text);
cc.cmd.Parameters.AddWithValue("@d2", txtStudentID.Text);
cc.cmd.Parameters.AddWithValue("@d3", txtStudentName.Text);
cc.cmd.Parameters.AddWithValue("@d4", txtYear.Text);
cc.cmd.Parameters.AddWithValue("@d5", txtTerm.Text);
cc.cmd.Parameters.AddWithValue("@d6", txtSubject.Text);
cc.cmd.Parameters.AddWithValue("@d7", txtPresentAbsent.Text);
MemoryStream ms = new MemoryStream();
Bitmap bmpImage = new Bitmap(Picture.Image);
bmpImage.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] data = ms.GetBuffer();
SqlParameter p = new SqlParameter("@d8", SqlDbType.Image);
p.Value = data;
cc.cmd.Parameters.Add(p);
cc.cmd.ExecuteReader();
cc.con.Close();
st1 = lblUser.Text;
st2 = "updated the Student'" + txtStudentName.Text + "' having Student id '" + txtStudentID.Text + "'";
cf.LogFunc(st1, System.DateTime.Now, st2);
btnUpdate.Enabled = false;
MessageBox.Show("Successfully updated", "Record", MessageBoxButtons.OK, MessageBoxIcon.Information);
/*
* catch (Exception ex)
* {
* MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
* }*/
}
