Can I make a Common Array Class and create a instance of the Common Array Class with Type of a new class

[Peri]

Dear All,

I have written a common array class which has insert, search and other
functions.

For Example (Code in VB.NET):

' Client Class
Public Class Client
Public ClientCode As String 'Key Field
Public ClientName As String
...
End Class

'Client Array Class - Similar to a Vector Class
Public Class ClientArray

Private _ArrayIn() As Client

'Inserts the value into the _ArrayIn()
Public Function Insert(ByVal value As Client) As Long
....
End Function

'Searches the array
Public Function Search(ByVal value As Client) As Long
' GetSearchKey - Use this function to get the value in the "_ArrayIn() "
and "value" and compare
....
End Function

' Gets the search key.
Private Function GetSearchKey(By Val value As Client) As String
Return value.ClientCod e
End Function

End Class

Similary I have many classes like the Client Class, Say
' Scrip Class
Public Class Scrip
Public ScripCode As Integer 'Key Field
Public ScripName As String
Public Exchange As Short
Public Symbol As String
Public Market As String
...
End Class

Instead of creating a ScripArray Class with the same functionality as the
ClientArray Class, Can I make a Common Array Class and create a instance of
the Common Array Class with Type as Client or Scrip?

Please help me out

--
Thanks and Regards,

Peri

[Marc Gravell]

List<Clientand List<Scrip>
or
Collection<Clie ntand Collection<Scri pt>

job done
(don't ask me what the VB.NET syntax is; you cross-posted to a C#
ng...)

Marc

[Peri]

Dear Marc,

If I use a list of a collection then I cannot write my own insert, search,
resize funtionalities. I would like to create my own insert/search and also
need to implement similar to a list or a collection.

"Marc Gravell" <ma**********@g mail.comwrote in message
news:%2******** **********@TK2M SFTNGP05.phx.gb l...

List<Clientand List<Scrip>
or
Collection<Clie ntand Collection<Scri pt>

job done
(don't ask me what the VB.NET syntax is; you cross-posted to a C# ng...)

Marc

[Peri]

Dear Marc,

If I use a list of a collection then I cannot write my own insert, search,
resize funtionalities. I would like to create my own insert/search and also
need to implement similar to a list or a collection.

"Marc Gravell" <ma**********@g mail.comwrote in message
news:%2******** **********@TK2M SFTNGP05.phx.gb l...

List<Clientand List<Scrip>
or
Collection<Clie ntand Collection<Scri pt>

job done
(don't ask me what the VB.NET syntax is; you cross-posted to a C# ng...)

Marc

[Chris Shepherd]

Peri wrote:

If I use a list of a collection then I cannot write my own insert, search,
resize funtionalities. I would like to create my own insert/search and also
need to implement similar to a list or a collection.

Why not?

What about List<T>/Collection<Tdoe sn't do what you're looking for?

Chris.

[Peri]

Dear Chris,

In My code, if you see in the common array which I have written I have
declared a variable called "Private _ArrayIn() As Client" and methods like
"Public Function Search(ByVal value As Client) As Long" which has "Client"
has a type. Instead of "Client", If I need to have it as "Scrip" then how do
I do this?

I hope what you are telling me is: In another class where we are
implementing this client/scrip array, you are asking me to put
"Dim clientArrayList As New List(Of Client)"

The Code:
----------
'Client Array Class - Similar to a Vector Class
Public Class ClientArray

Private _ArrayIn() As CLIENT

'Inserts the value into the _ArrayIn()
Public Function Insert(ByVal value As Client) As Long
....
End Function

'Searches the array
Public Function Search(ByVal value As CLIENT) As Long
' GetSearchKey - Use this function to get the value in the "_ArrayIn() "
and "value" and compare
....
End Function

' Gets the search key.
Private Function GetSearchKey(By Val value As CLIENT) As STRING
Return value.CLIENTCOD E
End Function

End Class

Thanks and Regards,

Peri

"Chris Shepherd" <ch**@nospam.ch sh.cawrote in message
news:%2******** ********@TK2MSF TNGP02.phx.gbl. ..

Peri wrote:

>If I use a list of a collection then I cannot write my own insert,
search,
resize funtionalities. I would like to create my own insert/search and
also
need to implement similar to a list or a collection.

Why not?

What about List<T>/Collection<Tdoe sn't do what you're looking for?

Chris.

[Marc Gravell]

Public Function Search(ByVal value As Client) As Long
What does that return? The index of the item? In which case
..IndexOf(T) is already implemented in both List<Tand Collection<T>.

In the more general sense with generics, you simply have (using C#
syntax, but same is possible in VB.NET):

public class SomeClass<T{
public int SomeMethod(T someArgument) {...}
}

Marc

[Jon Skeet [C# MVP]]

On Oct 16, 1:58 pm, "Peri" <P...@discussio ns.microsoft.co mwrote:

In My code, if you see in the common array which I have written I have
declared a variable called "Private _ArrayIn() As Client" and methods like
"Public Function Search(ByVal value As Client) As Long" which has "Client"
has a type. Instead of "Client", If I need to have it as "Scrip" then how do
I do this?

You need to use generics. However, if you're writing VB.NET code you'd
be a lot better asking in a VB group than a C# one.

Jon

[Chris Dunaway]

On Oct 16, 7:58 am, "Peri" <P...@discussio ns.microsoft.co mwrote:

>
I hope what you are telling me is: In another class where we are
implementing this client/scrip array, you are asking me to put
"Dim clientArrayList As New List(Of Client)"

If a List(Of Client) does not suit your needs, you can try to make
your own class generic. Something like this:

'Client Array Class - Similar to a Vector Class
Public Class Array(Of T)

Private _ArrayIn() As T

'Inserts the value into the _ArrayIn()
Public Function Insert(ByVal value As T) As Long
....
End Function

'Searches the array
Public Function Search(ByVal value As T) As Long
' GetSearchKey - Use this function to get the value in the
"_ArrayIn() "
and "value" and compare
....
End Function

' Gets the search key.
Private Function GetSearchKey(By Val value As T) As String
Return value.ClientCod e
End Function

End Class

Then you can declare and instance of this class like this:

Dim MyClientArray as New Array(Of Client)

or

Dim MyScripArray As new Array(Of Scrip)

or whatever.

You see if this can suit your needs.

Chris

[Peri]

Thanks Chris,

But the GetSearchKey is not working since it returns Return value.ClientCod e
(This is only for Client), If scrip then it should be Return
value.ScripCode .

Is there a way to implement this?

Thanks and Regards,

Peri

"Chris Dunaway" <du******@gmail .comwrote in message
news:11******** **************@ z24g2000prh.goo glegroups.com.. .

On Oct 16, 7:58 am, "Peri" <P...@discussio ns.microsoft.co mwrote:

>>
I hope what you are telling me is: In another class where we are
implementing this client/scrip array, you are asking me to put
"Dim clientArrayList As New List(Of Client)"

If a List(Of Client) does not suit your needs, you can try to make
your own class generic. Something like this:

'Client Array Class - Similar to a Vector Class
Public Class Array(Of T)

Private _ArrayIn() As T

'Inserts the value into the _ArrayIn()
Public Function Insert(ByVal value As T) As Long
....
End Function

'Searches the array
Public Function Search(ByVal value As T) As Long
' GetSearchKey - Use this function to get the value in the
"_ArrayIn() "
and "value" and compare
....
End Function

' Gets the search key.
Private Function GetSearchKey(By Val value As T) As String
Return value.ClientCod e
End Function

End Class

Then you can declare and instance of this class like this:

Dim MyClientArray as New Array(Of Client)

or

Dim MyScripArray As new Array(Of Scrip)

or whatever.

You see if this can suit your needs.

Chris