Re: Hashtable

From: Justin Rogers (Justin_at_games4dotnet.com)
Date: 05/24/04 

Date: Mon, 24 May 2004 12:00:11 -0700

// Enumerate
ArrayList al = hash["a"] as ArrayList;
if ( al != null ) {
    foreach(int i in al) {
        Console.WriteLine(i);
    }
}

// Adding an element
public void AddKeyedValue(string key, int value) {
    ArrayList al = hash[key] as ArrayList;
    if ( al == null ) {
        al = new ArrayList();
        hash[key] = al;
    }
    al.Add(value);
} 

-- 
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers
"MAY" <patwyh@hotmail.com> wrote in message
news:u4FNTtbQEHA.1620@TK2MSFTNGP12.phx.gbl...
> Hi Jon,
>
> Can you post a simple code to retreive the data?
>
> Thx again.
>
> MAY
>
>
> "MAY" <patwyh@hotmail.com> ¦b¶l¥ó
> news:%23eQaYebQEHA.1960@TK2MSFTNGP10.phx.gbl ¤¤¼¶¼g...
> > Thx :) i got it
> >
> > MAY
> > "Jon Skeet [C# MVP]" <skeet@pobox.com> ???
> > news:MPG.1b1c4262a759911198a9d3@msnews.microsoft.com ???...
> > > MAY <patwyh@hotmail.com> wrote:
> > > > hi,
> > > >
> > > > if i have the data :
> > > >
> > > > a      123
> > > >        1213
> > > >         3243
> > > >
> > > > b       32
> > > >          312
> > > >          342
> > > >
> > > > c        3243
> > > >           231
> > > >
> > > >
> > > >
> > > > how to use hashtable to save these data, and how to retrieve these?
> Thx.
> > >
> > > The normal way would be to have the mapping for each character to an
> > > ArrayList of ints. For instance:
> > >
> > > ArrayList al = new ArrayList();
> > > hash["a"] = al;
> > > al.Add(123);
> > > al.Add(1213);
> > > al.Add(3243);
> > >
> > > al = new ArrayList();
> > > hash["b"] = al;
> > > al.Add(32);
> > > al.Add(312);
> > > al.Add(342);
> > >
> > > etc
> > >
> > > When you fetch from the hash, cast the returned value to ArrayList, and
> > > then you can iterate through the integers.
> > >
> > > -- 
> > > Jon Skeet - <skeet@pobox.com>
> > > http://www.pobox.com/~skeet
> > > If replying to the group, please do not mail me too
> >
> >
>
>

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