Casting between classes that share the same interface
- by Chad
I have two interfaces IHeaderRow, and IDetailRow
I then have an object that implements both RawRow:IHeaderRow, IDetailRow
I then need to cast it to HeaderRow which implements IHeaderRow.
But when I try, it ends up being null or giving an exception.
I can cast ObjectRawRow to either interface IHeaderRow, or IDetailRow
var ObjectIHeaderRow = ObjectRawRow as IHeaderRow;
var ObjectIDetailRow = ObjectRawRow as IDetailRow;
But I can not cast ObjectRawRow to HeaderRow , or ObjectIHeaderRow to HeaderRow.
It throws the error Cannot convert source type 'IA' to target type 'A'
I need to cast it into the actual class HeaderRow.
Thoughts?
