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public void Update()
{
OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\\Employees.mdb");
conn.Open();
OleDbCommand cmd = new OleDbCommand("UPDATE [employee] SET ([Name],[Jobtitle],[Company])Values ('" + Name + "','" + Jobtitle + "','" + Company + "') where [EmpID] = '" + EmpID + "'", conn);
cmd.ExecuteNonQuery();
conn.Close();
}