Sorting a hashtable - strange error, please help!!

[almurph@altavista.com]

H ieveryone,

Can you help me please? I am trying to sort a hashtable but get the
error: "Cannot implicity convert type void to
System.Collecti ons.ArrayList"

I am doing the following:


****BEGIN CODE****


public ArrayList SomeMethod()
{
Hashtable myHT = new HashTable();

ArrayList keys = GetKeys (HT);

return keys.sort();
}


//Return an arraylist of Hashtable keys
public ArrayList GetKeys(Hashtab le table)
{
return (new ArrayList(table .Keys));
}


****END CODE****


However under the "keys.Sort( )" method call I get the error: "Cannot
implicity convert type void to System.Collecti ons.ArrayList"

I'm stuck. Would greatly appreciate any comments/suggestions/
corrections that you may be able to offer.

Thanking you,
Al.

[Marc Gravell]

Re: Sorting a hashtable - strange error, please help!!

The Sort() method does not return anything - you need to break this up:

keys.Sort();
return keys;

Note that you might want to consider List<Tif you are using .NET 2.0
or above.

Marc

[Ben Voigt [C++ MVP]]

Re: Sorting a hashtable - strange error, please help!!

Marc Gravell wrote:

The Sort() method does not return anything - you need to break this
up:
keys.Sort();
return keys;
>
Note that you might want to consider List<Tif you are using .NET 2.0
or above.

List<Twould be used with Dictionary<T, TValuejust as ArrayList is used
with Hashtable.

Mixing and matching could get quite ugly very fast.

>
Marc