Looking for small example on collections

[Edwin Knoppert]

I often need a collection having a keyname and string data

I currently use a struct like:

struct ItemsInfo
{
public String CC;
public String C;
};
ItemsInfo[] Items;

Of course this ****

I want to access an item by keyname as index.
Like Items["hello"] as Items[100]
Thanks,

 

[Ray Booysen]

I often need a collection having a keyname and string data

I currently use a struct like:

struct ItemsInfo
{
public String CC;
public String C;
};
ItemsInfo[] Items;

Of course this ****

I want to access an item by keyname as index.
Like Items["hello"] as Items[100]
Thanks,

Structs are alright except that they are value types while collections
like HashTable and Arraylist are reference types.

Cheers
Ray

 

[Tasos Vogiatzoglou]

In System.Collection you will find Hashtable class which you can use to
store key/pair values.

E.g.

Hashtable ht = new Hashtable();
ht.Add("test",new object());

object obj = ht["test"]

In .NET 2 in the System.Collection.Generic namespace you can also find
the generic implementation of Dictionary, which you can use instead of
a typed dictionary.

Dictionary<string,int> dict = new Dictionary<string,int>();
dict["age1"] = 10;
dict["age2"] = 5;

Best regards,
Tasos

 

[clintonG]

I think this web search: list<t> c#

<%= Clinton Gallagher
NET csgallagher AT metromilwaukee.com
URL http://www.metromilwaukee.com/clintongallagher/

 

[Edwin Knoppert]

Thanks!
Hashtable seems my logical one here
(So closeby and i kept messing with structs)

 

[Kevin Spencer]

You'd be better off with a Generic Dictionary Collection, such as:

System.Collections.Generic.Dictionary<TKey, TValue>

The HashTable uses an Object Key and an Object value, which is late bound,
while the Generic Dictionary Collection has a strongly-typed Key and Value.
Available on the .Net 2.0 Platform.

--
HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

The man who questions opinions is wise.
The man who quarrels with facts is a fool.

Thanks!
Hashtable seems my logical one here
(So closeby and i kept messing with structs)

In System.Collection you will find Hashtable class which you can use to
store key/pair values.

E.g.

Hashtable ht = new Hashtable();
ht.Add("test",new object());

object obj = ht["test"]

In .NET 2 in the System.Collection.Generic namespace you can also find
the generic implementation of Dictionary, which you can use instead of
a typed dictionary.

Dictionary<string,int> dict = new Dictionary<string,int>();
dict["age1"] = 10;
dict["age2"] = 5;

Best regards,
Tasos

 

[Kevin Spencer]

Correction: I should have said either late-bound or cast.

--
HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

The man who questions opinions is wise.
The man who quarrels with facts is a fool.

Thanks!
Hashtable seems my logical one here
(So closeby and i kept messing with structs)

In System.Collection you will find Hashtable class which you can use to
store key/pair values.

E.g.

Hashtable ht = new Hashtable();
ht.Add("test",new object());

object obj = ht["test"]

In .NET 2 in the System.Collection.Generic namespace you can also find
the generic implementation of Dictionary, which you can use instead of
a typed dictionary.

Dictionary<string,int> dict = new Dictionary<string,int>();
dict["age1"] = 10;
dict["age2"] = 5;

Best regards,
Tasos

 

[Edwin Knoppert]

I'll check it out, thanks!

You'd be better off with a Generic Dictionary Collection, such as:

System.Collections.Generic.Dictionary<TKey, TValue>

The HashTable uses an Object Key and an Object value, which is late bound,
while the Generic Dictionary Collection has a strongly-typed Key and
Value. Available on the .Net 2.0 Platform.

--
HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

The man who questions opinions is wise.
The man who quarrels with facts is a fool.

Thanks!
Hashtable seems my logical one here
(So closeby and i kept messing with structs)

In System.Collection you will find Hashtable class which you can use to
store key/pair values.

E.g.

Hashtable ht = new Hashtable();
ht.Add("test",new object());

object obj = ht["test"]

In .NET 2 in the System.Collection.Generic namespace you can also find
the generic implementation of Dictionary, which you can use instead of
a typed dictionary.

Dictionary<string,int> dict = new Dictionary<string,int>();
dict["age1"] = 10;
dict["age2"] = 5;

Best regards,
Tasos

 

[Edwin Knoppert]

Thanks, it works

I'll check it out, thanks!

You'd be better off with a Generic Dictionary Collection, such as:

System.Collections.Generic.Dictionary<TKey, TValue>

The HashTable uses an Object Key and an Object value, which is late
bound, while the Generic Dictionary Collection has a strongly-typed Key
and Value. Available on the .Net 2.0 Platform.

--
HTH,

Kevin Spencer
Microsoft MVP
Professional Numbskull

The man who questions opinions is wise.
The man who quarrels with facts is a fool.

Thanks!
Hashtable seems my logical one here
(So closeby and i kept messing with structs)



"Tasos Vogiatzoglou" <[email protected]> schreef in bericht
In System.Collection you will find Hashtable class which you can use to
store key/pair values.

E.g.

Hashtable ht = new Hashtable();
ht.Add("test",new object());

object obj = ht["test"]

In .NET 2 in the System.Collection.Generic namespace you can also find
the generic implementation of Dictionary, which you can use instead of
a typed dictionary.

Dictionary<string,int> dict = new Dictionary<string,int>();
dict["age1"] = 10;
dict["age2"] = 5;

Best regards,
Tasos