C# 0 The Complete Reference

RangeArray

 throws an object of type 

RangeArrayException

.

Notice there are three places in 

RangeArray

 that this might occur: in the 

get

indexer accessor, 

in the 

set

 indexer accessor, and by the 

RangeArray

 constructor. To catch these exceptions 

implies that 

RangeArray

 objects must be constructed and accessed from within a 

try

 block, 

as the program illustrates. By using an exception to report errors, 

RangeArray

 now acts like 

one of C#’s built-in types and can be fully integrated into a program’s exception-handling 

mechanism.

Notice that none of the 

RangeArrayException

 constructors provide any statements 

in their body. Instead, they simply pass their arguments along to