Generic property indexer

Question

 

Hi,

 

I've googled, windowslivesearched, Yahoosearched etc on Generic property indexer and I found nothing.

I did try many things with no success to date.

 

I would need a GENERIC PROPERTY INDEXER.  I explain :

 

I got a class with an indexer like this

 

 

public Object this[object ColumnName] // Indexer property to access the fields of a DataTable

{

get

{

RETURN THE DATA TYPE of the value WITH the value of course

so instead of CASTING the returned OBJET as this indexer is object, I would just use generic so it really gives me the real DATA TYPE with its value ???

}

set

{

Save the value to the table...

}

}

 

I thought that would work but it doesn't

public this<T>[object ColumnName]

 

So I would just do this

 

DateTime dtDate = MyClass.Field<DateTime>["TheColumnI'mlookingFor"];

 

instead of

 

DateTime dtDate = (DateTime)MyClass.Field["TheColumnI'mlookingFor"];

 

Thank you for any help on this.

Answer 1

A workaround is to declare a method (cannot use the "this" accessor) like the following.

 

public T GetValue<T>(object ColumnName)

{

return (T) yourValue;

}

 

You could call itas follows:

 

DateTime dtDate = MyClass.GetValue<DateTime>("TheColumnI'mLookingFor")

 

So, you were on the right track, you just can't use generics this way with the "this" keyword.