Passing multi-dimensional arrays to functions

[beldrew]

Just starting using VB.net

In VB6 I could..

Dim Array1(,) as string
dim blah as string

stuff happens to array1, and it gets filled with stuff

array1= passingarray(array1)


Function passingarray(Array2() as string)

stuff happens

passingarray=array2
end function

Now it's telling me that I can't convert the two dimensional array array1 into the one dimensional array2. Can't set the array dimensions on the parameter list for array2 either.

Any suggestions? Course I need to recode this part anyway. Maybe it's a sign

[jwmoore2001]

Ok what exactly are you asking here? Are you asking how to convert a 2-Dimensional Array into a 1-Dimensional? (Because you can't) or are you saying you are getting that error when trying to set the array?

Dim arrToPass() as string
 
arrToPass = PassArray(arrToPass)
'
'
'
Function PassArray(ByVal ArrayPass() as string) as string()
 
Return ArrayPass
 
End Function

By the way always use the vbcode blocks when writing code in the post. Its much easier to read.

[beldrew]

Basically asking how I pass a 2 dimension+ array to a function - having an array in the argument list appears to default to a 1 dimension array.

So in my code

Function test()
        Dim TwoDArray(,) As String
        TwoDArray = PassArray(TwoDArray)
    End Function
    Function PassArray(ByRef ArrayInArgList() As String)
        PassArray = ArrayInArgList
    End Function

The errors I get are " Value of type '2-dimensional array of String' cannot be converted to '1-dimensional array of String' because the array types have different numbers of dimensions."

Basically saying that ArrayInArgList is a 1d array, and because of that it can't copy the 2d array TwoDArray to it . But I can't set ArrayInArgList as a 2d array anywhere it seems

[jwmoore2001]

Add string()() at then end of the function and the arg.

[beldrew]

I'm curious as to what the string()() means, instead of using string(,) . For what I was trying to solve in my application string(,) worked, but string()() didn't. Kept saying it was 1d still (actually it changed everything to 1d, but said one 1d wasnt derived of string, or something).

Thanks for the pointer though, got me on the right path