When you are using a SqlConnection to connect to a MS Sql Server, if the password has expired you will get a SqlException Number: 18487 or 18488.
How can you change
Use the static SqlConnection.ChangePassword() method.
string original_dsn = "server=mysql.server.com,1433;database=pubdb;User Id={0};Password={1};"
string dsn = String.Format(original_dsn, username, password);
SqlConnection conn = new SqlConnection( dsn );
try
{
conn.Open();
}
catch(SqlException e)
{
if (e.Number == 18487 || e.Number == 18488)
SqlConnection.ChangePassword(dsn, newpassword);
// Try login again here with new password
else
MessageBox.Show(e.Message);
}
finally
{
conn.Close();
}