>>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.