Hello

This is a bit of a big ask, but I have taken the leap to try and create an Application, which I have working in VB.NET 2005, to C# 2005, and to be honest I am struggling!!!

Can anyone suggest an equivalent way of writing the following method in C#

VB Code:
  1. Private Sub ConnectedGroup_DataChange(ByVal TransactionID As Integer, ByVal NumItems As Integer, ByRef ClientHandles As System.Array, ByRef ItemValues As System.Array, ByRef Qualities As System.Array, ByRef TimeStamps As System.Array) Handles ConnectedGroup.DataChange

  2.         ' We don't have error handling here since this is an event called from the OPC interface

  3.  
  4.         Try

  5.             Dim i As Short

  6.             For i = 1 To NumItems

  7.                 ' Use the 'Clienthandles' array returned by the server to pull out the

  8.                 ' index number of the control to update and load the value.

  9.                 If IsArray(ItemValues(i)) Then

  10.                     Dim ItsAnArray As Array

  11.                     Dim x As Integer

  12.                     Dim Suffix As String

  13.  
  14.                     ItsAnArray = ItemValues(i)

  15.  
  16.                     ' Store the size of array for use by sync write

  17.                     OPCItemIsArray(ClientHandles(i)) = ItsAnArray.GetUpperBound(0) + 1

  18.  
  19.                     OPCItemValue(ClientHandles(i)).Text = ""

  20.                     For x = ItsAnArray.GetLowerBound(0) To ItsAnArray.GetUpperBound(0)

  21.                         If x = ItsAnArray.GetUpperBound(0) Then

  22.                             Suffix = ""

  23.                         Else

  24.                             Suffix = ", "

  25.                         End If

  26.                         OPCItemValue(ClientHandles(i)).Text = _

  27.                          OPCItemValue(ClientHandles(i)).Text & ItsAnArray(x) & Suffix

  28.                     Next x

  29.                 Else

  30.                     OPCItemValue(ClientHandles(i)).Text = ItemValues(i)

  31.                 End If

  32.             Next i

  33.         Catch ex As Exception

  34.             ' Error handling

  35.             MessageBox.Show("OPC DataChange failed with exception: " + ex.Message, "SimpleOPCInterface Exception", MessageBoxButtons.OK)

  36.         End Try

  37.     End Sub

I have tried a number of different things, but cannot find an "equivalent" of the VB IsArray method. And also when I pass the Array into the method ByRef I do not seem to be able to access the members of that array in the way that I would expect i.e.

ItemValues[i] = something

I get the error:

Cannot apply indexing with [] to an expression of type 'System.Array'

Any ideas?!?!?

Thank you for your help!!

Gary