connection.ConnectionString = connStr;
sqlStr = "select Sno,Sname from tbl_Student";
SqlDataAdapter adapter = new SqlDataAdapter(sqlStr, connection);
DataSet dataSetStudent = new DataSet();
adapter.Fill(dataSetStudent);
if (dataSetStudent.Tables[0].Rows.Count > 0)里面的 dataSetStudent.Tables[0].Rows.Count是什么意思?又如何给他添加表呢?
sqlStr = "select Sno,Sname from tbl_Student";
SqlDataAdapter adapter = new SqlDataAdapter(sqlStr, connection);
DataSet dataSetStudent = new DataSet();
adapter.Fill(dataSetStudent);
if (dataSetStudent.Tables[0].Rows.Count > 0)里面的 dataSetStudent.Tables[0].Rows.Count是什么意思?又如何给他添加表呢?
再写一个sql语句,帮定上你的dataset方法就行。