>>>Hi Viv,
>>>
>>>If I change definition of the TableSchema class to be
>>>

>>>public class TableSchema 
>>>{
>>>
>>>internal String TableName;
>>>
>>>public List<ColumnSchema> Columns = new List<ColumnSchema>();
>>>
>>>}
>>>

>>>then how would I retrieve column schema for particular column name ?
>>
>>

var columnSchema = Columns.Where(x => x.ColumnName == "Name").FirstOrDefault();

>
>Good idea! So, you think it's better than using dictionary, right?
>
>If so, I'll try to change to your code and use a List.

Don't see much point in a Dictionary here. And IEnumerable might be better the List....