Sorting a hashtable - strange error, please help!!

  • Thread starter Thread starter almurph
  • Start date Start date
A

almurph

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.Collections.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(Hashtable 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.Collections.ArrayList"

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

Thanking you,
Al.
 
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<T> if you are using .NET 2.0
or above.

Marc
 
Marc said:
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<T> if you are using .NET 2.0
or above.
Click to expand...

List<T> would be used with Dictionary<T, TValue> just as ArrayList is used
with Hashtable.

Mixing and matching could get quite ugly very fast.
 
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