Writing overrides

[David]

Hi all,

I am having a few questions today.

Anyway,

I want to create a class file, within the class file, I want to have
functions that can give you optional paramaters...

Such like...

public string AddText(int mynumber)

public string AddText(string MyText)

public string AddText(DataTable MyTableOfText)

public string AddText(StringBuilder MyStringOfText)

How do I really do this?

Probably really simple but an example would go down a treat.

Thanks.
Best regards,
Dave Colliver.
http://www.AshfieldFOCUS.com
~~
http://www.FOCUSPortals.com - Local franchises available

[Mythran]

"David" <da*****************@revilloc.REMOVETHIS.com> wrote in message
news:uI**************@TK2MSFTNGP14.phx.gbl...

Hi all,

I am having a few questions today.

Anyway,

I want to create a class file, within the class file, I want to have
functions that can give you optional paramaters...

Such like...

public string AddText(int mynumber)

public string AddText(string MyText)

public string AddText(DataTable MyTableOfText)

public string AddText(StringBuilder MyStringOfText)

How do I really do this?

Probably really simple but an example would go down a treat.

Thanks.
Best regards,
Dave Colliver.
http://www.AshfieldFOCUS.com
~~
http://www.FOCUSPortals.com - Local franchises available

Overloading, not overriding :)

public overloads string AddText(int MyNumber)
{
}

public overloads string AddText(string MyText)
{
}

HTH,
Mythran

[David]

>

Overloading, not overriding :)

public overloads string AddText(int MyNumber)
{
}

public overloads string AddText(string MyText)
{
}

HTH,
Mythran

Thank you.

I suppose then that I can easily pass from one to the other, such like...

MyString = AddText(25);

public overloads string AddText(int MyNumber)
{
return AddText(MyNumber.ToString());
}

public overloads string AddText(string MyText)
{
return MyText + " is not a prime";
}

would output "25 is not a prime"

Thanks.

Best regards,
Dave Colliver.
http://www.AshfieldFOCUS.com
~~
http://www.FOCUSPortals.com - Local franchises available

[Kevin Spencer]

Hi David,

This is called Overloading, and in VB.Net, you would use the Overloads
keyword in your Function declaration. Example:

Public Overloads String AddText(int mynumber)
....

Public Overloads String AddText(String MyText)
....
--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
The sun never sets on
the Kingdom of Heaven

"David" <da*****************@revilloc.REMOVETHIS.com> wrote in message
news:uI**************@TK2MSFTNGP14.phx.gbl...

Hi all,

I am having a few questions today.

Anyway,

I want to create a class file, within the class file, I want to have
functions that can give you optional paramaters...

Such like...

public string AddText(int mynumber)

public string AddText(string MyText)

public string AddText(DataTable MyTableOfText)

public string AddText(StringBuilder MyStringOfText)

How do I really do this?

Probably really simple but an example would go down a treat.

Thanks.
Best regards,
Dave Colliver.
http://www.AshfieldFOCUS.com
~~
http://www.FOCUSPortals.com - Local franchises available

[Shawn]

Could you explain when you should use Overloading and when not to?

Shawn
"Kevin Spencer" <ke***@DIESPAMMERSDIEtakempis.com> wrote in message
news:Ow*************@TK2MSFTNGP09.phx.gbl...

Hi David,

This is called Overloading, and in VB.Net, you would use the Overloads
keyword in your Function declaration. Example:

Public Overloads String AddText(int mynumber)
...

Public Overloads String AddText(String MyText)
...
--
HTH,

Kevin Spencer
Microsoft MVP
.Net Developer
The sun never sets on
the Kingdom of Heaven

"David" <da*****************@revilloc.REMOVETHIS.com> wrote in message
news:uI**************@TK2MSFTNGP14.phx.gbl...

Hi all,

I am having a few questions today.

Anyway,

I want to create a class file, within the class file, I want to have
functions that can give you optional paramaters...

Such like...

public string AddText(int mynumber)

public string AddText(string MyText)

public string AddText(DataTable MyTableOfText)

public string AddText(StringBuilder MyStringOfText)

How do I really do this?

Probably really simple but an example would go down a treat.

Thanks.
Best regards,
Dave Colliver.
http://www.AshfieldFOCUS.com
~~
http://www.FOCUSPortals.com - Local franchises available

[Mythran]

"Shawn" <bo********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP09.phx.gbl...

Could you explain when you should use Overloading and when not to?

Shawn

Let's say you have a method that requires a single parameter, Text ...

Public Sub WriteLine(ByVal Line As String)
Console.WriteLine(Line)
End Sub

Now you have this line, but lets now say you would like to have a similar
method that writes a line to a file given a format and arguments:

Public Overloads Sub WriteLine(ByVal Line As String)
Console.WriteLine(Line)
End Sub

Public Overloads Sub WriteLine( _
ByVal Format As String, _
ByVal ParamArray Args As String() _
)
Console.WriteLine(Format, Args)
End Sub

And now you have need to write a numeric line:

Public Overloads Sub WriteLine(ByVal Line As String)
Console.WriteLine(Line)
End Sub

Public Overloads Sub WriteLine( _
ByVal Format As String, _
ByVal ParamArray Args As String() _
)
Console.WriteLine(Format, Args)
End Sub

Public Overloads Sub WriteLine(ByVal Number As Integer)
Console.WriteLine(Number.ToString())
End Sub
HTH,
Mythran

[Shawn]

The Overloads keyword I mean. Take this example.
Are there any differeces between this way of writing it:
Private Overloads Sub test2(ByVal input As Integer)
...
End Sub

Private Overloads Sub test2(ByVal input As String)
...
End Sub

And this one:
Private Sub test2(ByVal input As Integer)
...
End Sub

Private Sub test2(ByVal input As String)
...
End Sub

Thanks,
Shawn
"Shawn" <bo********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP09.phx.gbl...

Could you explain when you should use Overloading and when not to?

Shawn
"Kevin Spencer" <ke***@DIESPAMMERSDIEtakempis.com> wrote in message
news:Ow*************@TK2MSFTNGP09.phx.gbl...

Hi David,

This is called Overloading, and in VB.Net, you would use the Overloads
keyword in your Function declaration. Example:

Public Overloads String AddText(int mynumber)
...

Public Overloads String AddText(String MyText)
...
--
HTH,

Kevin Spencer
Microsoft MVP
.Net Developer
The sun never sets on
the Kingdom of Heaven

"David" <da*****************@revilloc.REMOVETHIS.com> wrote in message
news:uI**************@TK2MSFTNGP14.phx.gbl...

Hi all,

I am having a few questions today.

Anyway,

I want to create a class file, within the class file, I want to have
functions that can give you optional paramaters...

Such like...

public string AddText(int mynumber)

public string AddText(string MyText)

public string AddText(DataTable MyTableOfText)

public string AddText(StringBuilder MyStringOfText)

How do I really do this?

Probably really simple but an example would go down a treat.

Thanks.
Best regards,
Dave Colliver.
http://www.AshfieldFOCUS.com
~~
http://www.FOCUSPortals.com - Local franchises available

[Juan T. Llibre]

When you use Overloads, you can use any of the data types
that you included in the function overload(s).
Public Overloads Function writetext(ByVal h As String)Response.write(h)End FunctionPublic
Overloads Function writetext(ByVal h As Integer)Response.write(h.ToString)End
FunctionPublic Overloads Function writetext(ByVal h As Long)Response.write(h.ToString)End
FunctionBy using the Overloads methods above, your overloaded writetext function
will return the correct output, regardless of whether the returned data
is a string, an integer or a long.

In essence, you overload to allow different outputs for the same function.

Juan T. Llibre
ASP.NET MVP
http://asp.net.do/foros/
Foros de ASP.NET en Español
Ven, y hablemos de ASP.NET...
======================

"Shawn" <bo********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP09.phx.gbl...

Could you explain when you should use Overloading and when not to?

Shawn
"Kevin Spencer" <ke***@DIESPAMMERSDIEtakempis.com> wrote in message
news:Ow*************@TK2MSFTNGP09.phx.gbl...

Hi David,

This is called Overloading, and in VB.Net, you would use the Overloads
keyword in your Function declaration. Example:

Public Overloads String AddText(int mynumber)
...

Public Overloads String AddText(String MyText)
...
--
HTH,

Kevin Spencer
Microsoft MVP
.Net Developer
The sun never sets on
the Kingdom of Heaven

"David" <da*****************@revilloc.REMOVETHIS.com> wrote in message
news:uI**************@TK2MSFTNGP14.phx.gbl...

> Hi all,
>
> I am having a few questions today.
>
> Anyway,
>
> I want to create a class file, within the class file, I want to have
> functions that can give you optional paramaters...
>
> Such like...
>
> public string AddText(int mynumber)
>
> public string AddText(string MyText)
>
> public string AddText(DataTable MyTableOfText)
>
> public string AddText(StringBuilder MyStringOfText)
>
> How do I really do this?
>
> Probably really simple but an example would go down a treat.
>
> Thanks.
> Best regards,
> Dave Colliver.
> http://www.AshfieldFOCUS.com
> ~~
> http://www.FOCUSPortals.com - Local franchises available
>

[Juan T. Llibre]

Aargh!

The formatting was messed up.

When you use Overloads, you can use any of the data types
that you included in the function overload(s).

Public Overloads Function writetext(ByVal h As String)
Response.write(h)
End Function

Public Overloads Function writetext(ByVal h As Integer)
Response.write(h.ToString)
End Function

Public Overloads Function writetext(ByVal h As Long)
Response.write(h.ToString)
End Function

By using the Overloads methods above, your overloaded writetext function
will return the correct output, regardless of whether the returned data
is a string, an integer or a long.

In essence, you overload to allow different outputs for the same function.


Juan T. Llibre
ASP.NET MVP
http://asp.net.do/foros/
Foros de ASP.NET en Español
Ven, y hablemos de ASP.NET...
======================

"Juan T. Llibre" <no***********@nowhere.com> wrote in message
news:u7**************@TK2MSFTNGP09.phx.gbl...

When you use Overloads, you can use any of the data types
that you included in the function overload(s).
Public Overloads Function writetext(ByVal h As String)Response.write(h)End
FunctionPublic Overloads Function writetext(ByVal h As
Integer)Response.write(h.ToString)End FunctionPublic Overloads Function writetext(ByVal
h As Long)Response.write(h.ToString)End FunctionBy using the Overloads methods above,
your overloaded writetext function
will return the correct output, regardless of whether the returned data
is a string, an integer or a long.

In essence, you overload to allow different outputs for the same function.

Juan T. Llibre
ASP.NET MVP
http://asp.net.do/foros/
Foros de ASP.NET en Español
Ven, y hablemos de ASP.NET...
======================

"Shawn" <bo********@hotmail.com> wrote in message
news:%2****************@TK2MSFTNGP09.phx.gbl...

Could you explain when you should use Overloading and when not to?

Shawn
"Kevin Spencer" <ke***@DIESPAMMERSDIEtakempis.com> wrote in message
news:Ow*************@TK2MSFTNGP09.phx.gbl...

Hi David,

This is called Overloading, and in VB.Net, you would use the Overloads
keyword in your Function declaration. Example:

Public Overloads String AddText(int mynumber)
...

Public Overloads String AddText(String MyText)
...
--
HTH,

Kevin Spencer
Microsoft MVP
.Net Developer
The sun never sets on
the Kingdom of Heaven

"David" <da*****************@revilloc.REMOVETHIS.com> wrote in message
news:uI**************@TK2MSFTNGP14.phx.gbl...
> Hi all,
>
> I am having a few questions today.
>
> Anyway,
>
> I want to create a class file, within the class file, I want to have
> functions that can give you optional paramaters...
>
> Such like...
>
> public string AddText(int mynumber)
>
> public string AddText(string MyText)
>
> public string AddText(DataTable MyTableOfText)
>
> public string AddText(StringBuilder MyStringOfText)
>
> How do I really do this?
>
> Probably really simple but an example would go down a treat.
>
> Thanks.
> Best regards,
> Dave Colliver.
> http://www.AshfieldFOCUS.com
> ~~
> http://www.FOCUSPortals.com - Local franchises available
>