how to check if a datareader is null or empty

Question

I have a datareader that return a lsit of records from a sql server database. I have a field in the database called "Additional". This field is 50% of the time emp

Answer 1

I also experiencing this kind of problem but mine, i'm using DbDataReader as my generic reader (for SQL, Oracle, OleDb, etc.). If using DataTable, DataTable has this method:

DataTable dt = new DataTable();
dt.Rows[0].Table.Columns.Contains("SampleColumn");

using this I can determine if that column is existing in the result set that my query has. I'm also looking if DbDataReader has this capability.