I have a problem in the following codes:
When it run, an Exception was thrown : INSERT INTO syntax error
the wrong line is printed red .



...

OleDbConnection mConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; " +
                    @"Data Source=database\csmng.mdb;");
                OleDbDataAdapter da = new OleDbDataAdapter();
                da.SelectCommand = new OleDbCommand("select * from T_Course",mConn);
                OleDbCommandBuilder cb = new OleDbCommandBuilder(da);
                mConn.Open();
                DataSet ds = new DataSet();
                da.Fill(ds,"T_Course");
                DataTable dt = ds.Tables["T_Course"];
                dt.Columns[0].AutoIncrement = true;
                DataRow row = dt.NewRow();
                row["College"] = "a string";
                row["Major"] = "a string";
                row["Grade"] = "a string";
                ds.Tables["T_Course"].Rows.Add(row);
                da.Update(ds,"T_Coures");
...

Although I have not used the CommandBuilder classes, your code looks incomplete. You set up a new command builder class, but I don't see it used anywhere. So the data adapter 'da' doesn't have an update command to use when you call the .Update() method.