Better way to go from ArrayList to Object()

[Chris]

I have the following code where I want to return a type Hotel()

Function GetHotel as Hotel()

'... Init Code here

Dim arrH As New ArrayList
Do While Reader.Read
Dim H As New Hotel(Reader.GetString(1), Reader.GetInt32(0))
arrH.Add(H)
Loop
Reader.Close()

Dim Hs(arrH.Count - 1) As Hotel
For ii As Integer = 0 To arrH.Count - 1
Hs(ii) = DirectCast(arrH(ii), Hotel)
Next
Return Hs

End Function

Is this the best way to do this? I guess I could use reDim Preserve but
thought that was an ugly way to do it too? What's best way to do this?

Chris

 

[Armin Zingler]

I have the following code where I want to return a type Hotel()

Function GetHotel as Hotel()

'... Init Code here

Dim arrH As New ArrayList
Do While Reader.Read
Dim H As New Hotel(Reader.GetString(1), Reader.GetInt32(0))
arrH.Add(H)
Loop
Reader.Close()

Dim Hs(arrH.Count - 1) As Hotel
For ii As Integer = 0 To arrH.Count - 1
Hs(ii) = DirectCast(arrH(ii), Hotel)
Next
Return Hs

End Function

Is this the best way to do this? I guess I could use reDim Preserve but
thought that was an ugly way to do it too? What's best way to do this?

hs = directcast(arrh.toarray(gettype(hotel)), hotel())


Armin

 

[Jason Newell]

Chris,

I'm not sure about VB.NET but in C# we would use:

Hotel[] hotels = (Hotel[])arrH.ToArray(typeof(Hotel));

Keypoint here is using the .ToArray() method.

Jason

 

[Chris]

hs = directcast(arrh.toarray(gettype(hotel)), hotel())


Armin

Thanks, I just didn't pass in the gettype parameter... maybe if there
was some document somewhere that showed how to use the toarray function...

Oh wait... There it is...

Thanks again
Chris

 

[Herfried K. Wagner [MVP]]

I have the following code where I want to return a type Hotel()

Function GetHotel as Hotel()

'... Init Code here

Dim arrH As New ArrayList
Do While Reader.Read
Dim H As New Hotel(Reader.GetString(1), Reader.GetInt32(0))
arrH.Add(H)
Loop
Reader.Close()

\\\
Return DirectCast(arrH.ToArray(GetType(Hotel)), Hotel())
///

 

[CMM]

It doesn't get more elegant than that!