Throw Exception

Hello,

I have a function named Find as follows:

Public Function Find() As Control
Dim AllControls As Control() = FindAll()
End Function

FindAll returns can return an array of controls or single control.

What I want is to create and exception that I would throw as follows:

If AllControls has more than 1 control then throw the expection:
"Multiple controls found"

If AllControls has only 1 control but its type is different from
TextBox the throw the exception:
"The control found is not a TextBox"

If AllControls has only 1 control and is a TextBox then:
Throw now exception and Return AllControls(0)

How can I do this?

Thanks,
Miguel

RE: Throw Exception

please pardon my code smaple below i am not very familiar with VB.NET (sample
code in C#)

if(AllControls.Length > 1)
throw new Exception("multiple");

if(AllControls.Length == 1 && !(AllControls[0] is TextBox))
throw new Exception("not textbox");

return AllControls[0];



--
Misbah Arefin



"shapper" wrote:

> Hello,
>
> I have a function named Find as follows:
>
> Public Function Find() As Control
> Dim AllControls As Control() = FindAll()
> End Function
>
> FindAll returns can return an array of controls or single control.
>
> What I want is to create and exception that I would throw as follows:
>
> If AllControls has more than 1 control then throw the expection:
> "Multiple controls found"
>
> If AllControls has only 1 control but its type is different from
> TextBox the throw the exception:
> "The control found is not a TextBox"
>
> If AllControls has only 1 control and is a TextBox then:
> Throw now exception and Return AllControls(0)
>
> How can I do this?
>
> Thanks,
> Miguel
>
>