Possible To Program Dynamic Array As Double?

Jun 10, 2011

Basically im having problems programming an array as double. I have it as ' public arrytotal() as double ', however I keep getting the error messages

1. Error 5 Operator '+' is not defined for types '2-dimensional array of Double' and '2-dimensional array of Double'. C:UsersAlexDocumentsCafe AssignmentCafe AssignmentconverthomeBackupWindowsApplication2Form2.vb 115 22 WindowsApplication2
and
2. Error 1 Value of type 'Double' cannot be converted to '2-dimensional array of Double'. C:UsersAlexDocumentsCafe AssignmentCafe AssignmentconverthomeBackupWindowsApplication2Form2.vb 84 19 WindowsApplication2

Is it possible to program an dynamic array as a double? i have seen examples of this online, but cannot seem to do it.

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Converting System.array To Double() Array?

Jun 12, 2012

just hoping that someone may be able to assist me to convert system.array to double() array.

Declarations are as follows:

Private f_Data As System.Array

Private f_Measures() As Double

Private f_NumberOfObservations As Integer

I then 'fill' f_Data from a range in an Excel worksheet as follows:

f_Data = wsXLSData.Range(wsXLSData.Cells(1,1), wsXLSData.Cells(8, 1)).Value

This seems to work OK. Upon checking f_Data is indeed filled with 8 double type numbers.

I then try to convert this system.array to a double array as follows:

For i As Integer = 0 To f_NumberOfObservations - 1

f_Measures(i) = f_Data(i + 1, 1).value
Next
I then get an error pointing to the line ' f_Measures(i) = f_Data(i + 1, 1).value' of type MissingMemberException was unhandled by user code'

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Add A Image Where And When Double Click On The Icon And The Program Starts It Shows A Picture Before The Program Loads?

Oct 11, 2010

How can you add a image where when you double click on the icon and the program starts it shows a picture before the program loads. Like Photoshop startup or the new 2010 visual Basic express start up

[Code]...

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Convert String Into Double Array

Aug 4, 2009

How to convert a string array into double array?

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Convert String To Double Array?

Apr 18, 2012

I need to take this string:

Dim tmpTry As String = "10, 20, 30, 40, 50, 52, 20, 20, 10, 35, 3, 8, 47, 7, 2, 5, 55, 8, 0, 0, 6, 55, 0, 2, 12, 0, 0, 21, 14, 0, 3"

And convert it to a double array:

Dim arrNumOfVisits As Double() = New Double(tmpTry) {}

How do i go about doing that?

FYI the arrNumOfVisits goes into a ParamArray System.Collections.IEnumerable()

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Converting Double Array To String?

Nov 19, 2009

I want to convert an array of numbers to a string with a colon imbetween splitting it. I tried:

StringA = Join(Array(), ":")

I get the error: 'Number of indices is less than the number of dimensions of the indexed array.'I seem to get this error alot in my programming but don't exactly know what causes it. Even if I can fix this error I heard that Join only works for string arrays so this wouldn't work anyway.

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Dll That Returns A Jagged Array Of Double?

Mar 1, 2010

I currently have a VB.NET dll that returns a jagged array of double. This is the declaration:

Public Function CalcMatching(ByRef dataArray1 As Object,
ByRef dataLen1 As Integer, ByRef dataArray2 As Object,
ByRef dataLen2 As Integer, ByRef matchingType As String) As Double()()

It works well inside VB.NET, but when I insert it into a VBA project, I noticed that after the execution of the funtion, while retrieving the data, the "Type mismatch' excpetion is raised inside VBA.I searched over the internet, but I could not find a delcaration of a jagged array inside VBA. is that possible? If yes, how can I do it?

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Integer To '1-demensional Array Of Double'?

Feb 28, 2012

I'm trying to get my chart (y values) updated on the run, they need to be updated by an integer.

Dim a As Integer
Dim b As Integer

'some button.click code, contains a += 1 and b += 1

Chart1.Series("Series1").Points(0).YValues = a
Chart1.Series("Series1").Points(1).YValues = b
But it says Value of type 'Integer' cannot be converted to '1-dimensional array of Double'.

so, what do I have to do to fix this?

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3 Dimension Dynamic Array?

Jan 12, 2010

I am having trouble conceptualizing how to create and load my 3d Array. The Project does the following:

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Dynamic Array Of Objects?

Oct 7, 2008

I have BIG trouble trying to understand the decleration and creation of an instance with respect to arrays of objects. Basically I struggle with with this error:

Object reference not set to an instance of an object.

complete the test code I made below, so that I can try to understand it..? Been figthing with this for hours..

Code:
Public Class Point
Public x
Public y

[Code].....

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Fill Dynamic Array From XML?

Feb 23, 2010

I want to build an array with info from an XML file.

The number of columns is static, but the rows will be increased once in awhile and I want one column to populate in a combobox while corrosponding selectedindex appears in a textbox. I think I can figure that part out, but currently stuck at the array building.[code...

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Convert Binary Stream Into Double Array?

Aug 5, 2009

How to convert a binary stream (which is a string of numbers) into Double Array ? (VB.NET 2008)

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Value Of Type -1 Dimensional Array Of Double Cannot Be Converted

May 6, 2012

I think I am missing something really simple. I want the user to be able to select a particular interest rate and term from radio buttons (in separate groups), the values for the buttons are to be stored in an array. Then they click the calculate button and it does it's magic and pops the result in to another field. I think I have things set up roughly the way it needs to. What I'm running in to right now is the term variable in the calculation formula is coming up with a blue underline stating that "value of type -1 dimensional array of double cannot be converted to a double". So as a result nothing is working right. I don't know where exactly I've gone wrong. If I change the data types nothing seems to change.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim loanAmount As Integer = AmountBorrowedBox1.Text

[Code].....

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Bitmap Array With Dynamic Contents

Apr 2, 2010

I'm working on a program that has to get a set of images and then scan them to find pixels that match colors in an color array. Anyway I think I got everything working but how to load the images in as bitmaps. See the images are dynamic, they change there filenames so I can't call them with a static call like Dim bmp2 As New Bitmap("c:button.gif").

So I am using a loop to feed the images into an array for bitmap but thats not working, anyway that I can do this as, right now the program gets all the filenames for the images from a text file that is sent in to us. All I need to do is have the program check each image for pixels that match our color list. But I cant get the images into the bitmap array.

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Creating A Dynamic Array Of Data?

Sep 20, 2009

[URL]..And put into a dynamic array where each month represents a record in the array with 3 given with C/P, Strike and Settle

The criterion is for every month grab all C/P that have matching strikes thus returning the following for every month. See data below and what I would like to return below. Want to use excel VBA to return the values from array into a sheet in excel. See data below

[Code]...

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Dynamic Array - Printing Out Not Valid

Nov 29, 2009

I created a code that will prompt someone to enter a name and if the name is in the array it should print out the correct integer, but it keeps printing out not valid.

Private Sub btnDisplay_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDisplay.Click
Dim strSub() As String = {"Jasmine", "Sean", "Devon", "Jontae", "Whitney"}
Dim intNumb() As Integer = {15, 10, 11, 12, 5}
Dim strSearchFor As String
[Code] .....

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Dynamic Array Of Byte Arrays?

Jun 24, 2009

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It would be ideal if the following definition would be possible:

Dim ArrayOfBuffers() as buffer(10000) as Byte

The byte arrays must be ordered sequentially because they have to be written to a file by efficient procedures destinationFile.Write(ArrayOfBuffer(3),1000,1000)

The number of buffers will change during program execution sometimes. Therefore it would be nice to be able to do a ReDim on the data structure when needed.

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Dynamic Array Of Custom Class

Jun 16, 2009

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Apr 7, 2010

Does this create a dynamic byte array?
Code:
Private m_renderedReport As Byte()()
Or this actually creates a structure?

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How To Determine Size Of Dynamic Array

Jul 28, 2011

I'm trying to find the sum of all the digits that make up the number 2^1000, which you may have guessed is from Project Eula. I think it's good so far except I'm just learning about arrays and dynamic arrays, so how will I know what the size of the index will be so I can specify when the Do loop should stop so I don't get an indexoutofrange exception?

vb.net
Dim BigNumber As Double = 2 ^ 1000
Dim DigitArray() As Char = BigNumber.ToString.ToCharArray
Dim Index As Integer = 0
Dim SumOfDigits As Integer = 0
[Code] .....

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How To Get The Size Of A Dynamic Tab Delimited Array

Feb 2, 2010

I m trying to manipulate some excel sheet data in visual basic but for tht i hv converted the excel file into text tab delimited file. now i m able access each column n row value as i want but the prob is the text file has to b input n the no of columns in it could be varied so i need a method to count the number of elements in th tab delimited array wen first time the text file line is read.

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Save A Dynamic Array Into Textfile?

Sep 16, 2009

Private Sub LoadButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LoadButton.Click
Dim lin(8) As String, filRead As StreamReader, i, x, t, d As Integer

[Code].....

I am getting a run time error it is not saving to textfile

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Oct 6, 2009

I am attempting to figure out the best way to place values into an array using dynamic data that is continuously streaming in from a ComPort. I want the array to hold 5 values at a time, with the newest incoming data point taking the place of the oldest data point. Each set of values in the array will be used in finding a trendline, which is then used in a later portion of the code.

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VB Delete Last Element In Dynamic Array?

May 17, 2011

I need a way to delete the last element in an array when I don't know how big the array is.Basically I need the VB version of php array_pop, but nothing relevant seems to be appearing in search results.

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Convert Generic List Of Double To Byte Array?

Sep 3, 2011

how to convert a list of int to byte array in C#, but can't get syntax to work out for me in vb.Converting a list of ints to a byte array.

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Parse A Space Delimited String Into A Double Array?

May 25, 2010

in parsing a string which is delimited by space in to a Double Array

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VS 2010 Calculate Average Of Double Inside An Array?

Aug 18, 2011

I'm working with an API, for this I'm using this particular call: [URL]

If i use this, I will get all the .price values:

For i = 0 To .bets.Length - 1
With .bets(i)
Print(.price)
End With
Next

Can I calc the average .price value? I will need to sum all the values as well.

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Create Event For Dynamic Control Array?

Nov 16, 2010

I'm trying to create an array of checkboxes dynamically and also want to put event to those checkboxes. For example: I have a array of checkboxes - Chk1, Chk2. I want it to work this way: When I check Chk1, I want to disable Chk2, and when Chk1 is unchecked, Chk2 is enable, and vice versa.

[Code]....

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Creating Dynamic Array Based On SQL Count?

Sep 15, 2009

I have a SQL database which I'm running a query against to return a list of names - eg using "select names from table"I would like to add all of these names to an array so I can use them later. To do this I would need to use a dynamic array as the number of names returned could be anything.Apart from first running "select count(names) from table", getting a value and then Redim'ing the array on the count is there another method I can use.I've seen there's a dataset row.count? Can I somehow use this?

connection.Open()
reader = command.ExecuteReader()
While reader.Read()

[code]....

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Creating Dynamic Control Array In VB 2010

Oct 31, 2011

I need to dynamically create some sort of 'table' on my form. It should look like:

PIC1 INTEGER1 TIME1
PIC2 INTEGER2 TIME2
PIC3 INTEGER3 TIME3

On top of that it should look like a table and have gridlines between the 'cells' containing the picture/data, which makes it even more difficult for me. Before, control arrays were quite simple in VB6, but I've been searching for 1,5 hours now and I can't figure out how to do this in VB.NET 2010. Any idea how to tackle this the most efficiently?

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