.net - Interop Cannot Call Get_Range, And Cannot Use Two-dimensional Object Array Returned By Range().Value2?

Jun 1, 2011

Trying to replace Cells(RowIndex,ColumnIndex).Value() calls by row-wise references for performance, I permanently fail at referencing the result. Starting with Excel Interop - Efficiency and performance, which contains the tip to use get_range, i.e.

//get values
object[,] objectArray = shtName.get_Range("A1:Z100").Value2;
iFace = Convert.ToInt32(objectArray[1,1]);
//set values
object[,] objectArray = new object[3,1] {{"A"}{"B"}{"C"}};
rngName.Value2 = objectArray;

[Code]...

However, referencing Values with two dimension indices always returns an "index was outside the bounds of the array" exception. Inspecting the array with the debugger shows a nice 2-dimensional array which should has 17 elements on the second dimension, so Value (0,0) should indeed be a valid reference -- but it isn't:

The debugger lets me inspect Value, I can also drill down to Value(0,0) and see the correct value, but re-evaluating just that element, i.e. inspecting "Value (0,0)" returns above message.

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[Code]...

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Mar 28, 2011

I've found a lot of other references to this error using Google but I'm having trouble making sense out of how they apply to what I'm doing.

Here's the VBA error I'm getting at compile time: "Function or interface marked as restricted, or the function uses an Automation type not supported in Visual Basic."

VBA Code that causes the error:

'ftp is also a com object created in code not posted here
Dim f() As wooxter.FTPFile
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[Code].....

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Friend Sub StartTablet()
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[code]....

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Feb 17, 2010

I have a string containing many lines. Each line has many values separated by commas. Basically it's in CSV format. The number of lines is variable but the number of columns is always 7.

I can get each line into a one dimensional array using Split(Var, Chr(10)).

I'd like to make it a two dimensional array where the second dimension contains each comma separated value.

I've got

Dim VarArray1() As String = Split(VarText, Chr(10))
Dim VaryArray2(0 To VarArray1.Length - 1, 0 To 6) As String

Is there a quick way to get the contents of VarArray1 into VarArray2. I know I can do the following.

For Counter = 0 to VarArray1.Length - 1
Dim line as string = VarArray1(Counter)
Dim Values() as string = Split(line, ",")
For Counter2 = 0 to 6
VarArray2(Counter,Counter2) = Values(Counter2)
Next Counter2
Next Counter

But is there a quicker way to do it that doesn't require passing through each element of VarArray1 and then passing through each element of Values.

The eventual goal in all of this will be to find the highest value in the 3rd column (the arrays are strings at this point because not all columns are numeric). To do that once I get the values into VarArray2 I suspect I have to pass through each element VarArray2, i.e. VarArray2(Counter,2). Unless I can copy the whole third column into a SortedList?

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[Code]......

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[Code]....

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Structure Employee
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Dim Lastname As String

[code].....

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I am having a problem understanding the following error message:

Value of type 1-dimensional array of string cannont be converted to 2-dimensional array of string because the array types have different numbers of dimensions This line seems to be causing the error:

New String((13) - 1) {}

I did a Google search on this but didnt come up with anything useful. I didnt even change the code.I just found this example online and copied/pasted it into a project that Im working on.

All code is listed below!

Calendar.aspx.vb
Imports System
Imports System.Data

[Code].....

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It is working with vb6 but when I used vb.net 2008 it is not working
Private Declare Function GetComputerName Lib "kernel32" _
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Long) As Long
Public Function ComputerName() As String
Dim sBuffer As String
[Code] .....

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"Error HRESULT E_FAIL Has Been Returned From A Call To A COM Component

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[Code]...

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[Code]...

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Avoid( Error HRESULT E_FAIL Has Been Returned From A Call To A COM Component)

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[Code]....

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[Code]...

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I have a VB6 program which calls a COM method, passing 2 arrays as parameters and expecting 2 arrays to be populated in response.The code is this, where ItemIDs and ItemClientHandles are the input array parameters and MyItemServerHandles and Errors are populated by the COM object.

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[Code]...

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[Code]....

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following error message:

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