private void instructorToolStripMenuItem_Click(object sender, EventArgs e)
{
Advisor l = Advisor.getInstance();
l.Show();
this.Hide();
}
public static Advisor getInstance()
{
if (l == null)
{
l = new Advisor();
l.Show();
return(l);
}
else
{
return(l);
}
}
private void button2_Click(object sender, EventArgs e)
{
try
{
int key = Convert.ToInt32(textBox1.Text);
String str = "Data Source=DESKTOP-TOIHAAB;Initial Catalog=ProjectA;Persist Security Info=True;User ID=sa;Password=java";
String query = "Update Advisor Set Designation = (select Id from Lookup where Lookup.Value ='" + comboBox1.Text + "'),Salary=('" + Convert.ToDecimal(textBox2.Text) + "')where Id = '" + Convert.ToInt32(textBox1.Text) + "';";
SqlConnection connect = new SqlConnection(str);
SqlCommand cmd = new SqlCommand(query, connect);
connect.Open();
cmd.ExecuteNonQuery();
MessageBox.Show("Data is Updated successfully");
connect.Close();
Advisor ad = new Advisor();
this.Hide();
ad.Show();
}
catch (Exception es)
{
MessageBox.Show(es.Message);
}
}