Visual Basic

Brad^24-Mar-07 14:39

Brad^

24-Mar-07 14:39

VB kep throwing expression errors, i have tried to work around it but it is not working at all, I am 18 and been coding for a few months so please excuse my stupidness.

Christian Graus24-Mar-07 14:43

24-Mar-07 14:43

Oh, my bad.

It's System.IO.File.WriteAllText

if you don't have System.IO scoped in already, you need to put the whole thing.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Brad^24-Mar-07 14:40

Brad^

24-Mar-07 14:40

VB keeps on thrwoing expression errors when i use your code and havw tried to work around it to get it to work but no luck. Please excuse my stupidness as i have been coding for a few months.

Brad^24-Mar-07 15:42

Brad^

24-Mar-07 15:42

My.Computer.FileSystem.WriteAllText("C:\filename.txt", TextBox1.Text, True)

That is how I have done it! Thanks for the help Christian!

Christian Graus24-Mar-07 15:55

24-Mar-07 15:55

No problem. That's a shortcut for System.IO.File.WriteAllText, it does the same thing. My is a shortcut for VB only, not C#.

how to make .dll file in vb.net???

The ANZAC25-Mar-07 12:29

The ANZAC

25-Mar-07 12:29

Dim SaveStream As System.IO.StreamWriter<br />
SaveStream = New System.IO.StreamWriter(directoryasstring.txt)<br />
SaveStream.Write(texttosaveasstring)<br />
SaveStream.Close()

Posted by The ANZAC

bhawna_k24-Mar-07 6:35

bhawna_k

24-Mar-07 6:35

how to add reference to the aracle database.dll
in vb.net????

Christian Graus24-Mar-07 6:45

24-Mar-07 6:45

You've asked two questions

1 - to make a dll, create a class library project.
2 - to reference to a dll, right click on the references area of the solution explorer and choose 'add reference'

bhawna_k24-Mar-07 6:49

bhawna_k

24-Mar-07 6:49

u mean addref--.net tab--oracle database.dll
but here i cannot fine oracle database.dll
can u tell me the exact path where it actually reside

Dave Kreskowiak24-Mar-07 7:23

24-Mar-07 7:23

Probably because you haven't installed something. You can find it here[^].

Dave Kreskowiak
Microsoft MVP - Visual Basic

Christian Graus24-Mar-07 7:24

Argument should implement 2 or more interfaces

24-Mar-07 7:24

It's System.Data.OracleClient in the list of .NET references. You do not have to add anything that's part of Oracle ( and unless it's a .NET or COM dll, you couldn't any how )

Banjobeni24-Mar-07 6:23

24-Mar-07 6:23

Hi,

Is it possible to specify that a sub/function argument should implement two or more interfaces?

What i mean is something like this (of course this doesnt work):

Private Sub DoSomething(ByVal x As {IFirst, ISecond})
    'Do it
End Sub

Thx,
Banjobeni

Christian Graus24-Mar-07 6:47

24-Mar-07 6:47

No.

TwoFaced24-Mar-07 7:04

TwoFaced

24-Mar-07 7:04

If ISecond inherits IFirst then you could accept anything that Implements IFirst, which would also include anything that implements ISecond. However you would be limited to only the methods and properties found in IFirst. If you needed access to properties/methods found in ISecond you would have to test the object to see if it could be cast as ISecond and if so act accordingly. If those are completly seperate interfaces then no it's not possible.

Banjobeni24-Mar-07 7:23

24-Mar-07 7:23

What is the easiest way to test if an object can be cast as something?

Christian Graus24-Mar-07 7:25

24-Mar-07 7:25

if (myOb is IMyInterface)
{
}

or

IMyInterFace myInt = myOb as IMyInterface;

if (myInt != null)
{
// It worked
}

Banjobeni24-Mar-07 7:27

24-Mar-07 7:27

And in VB.NET?

Christian Graus24-Mar-07 7:32

24-Mar-07 7:32

Sorry, I don't know the VB.NET syntax for 'is' and 'as'. I don't use VB.NET, ever.

Banjobeni24-Mar-07 8:47

24-Mar-07 8:47

But you know that this is a VB.NET board, right? If I needed C# code or any of the .NET languages, i would have posted it there.

Dave Kreskowiak24-Mar-07 9:48

24-Mar-07 9:48

Did you know that both C# and VB.NET both target the .NET Common Language Runtime?

Did you also know that if you look on MSDN for the docs on any class, property, or method, or function, there's always an example in BOTH languages? Thousands of examples serving as Rosetta stones!

If TypeOf objectName Is interface Then

Dave Kreskowiak
Microsoft MVP - Visual Basic

Christian Graus24-Mar-07 10:03

24-Mar-07 10:03

Banjobeni wrote:
But you know that this is a VB.NET board, right?

Yes, but I can answer most questions here, because they relate to the framework.

If Dave is on the job, I'll hang back, he always knows more VB than I do.

Dave Kreskowiak24-Mar-07 10:05

24-Mar-07 10:05

Christian Graus wrote:
If Dave is on the job, I'll hang back, he always knows more VB than I do.

I dont' know if that's flattering or not! Wink | ;)

Dave Kreskowiak
Microsoft MVP - Visual Basic

Christian Graus24-Mar-07 10:45

24-Mar-07 10:45

Dave Kreskowiak wrote:
I dont' know if that's flattering or not!

Given that I don't use VB at all, it's arguably faint praise, but it's not meant that way....

Dave Kreskowiak24-Mar-07 11:23