# Converting Double To String (Not In Scientific Notation)

Nov 12, 2011

The only post I can find on this matter is one that coverts the double to a decimal before converting it into a string. However the numbers I'm using are far larger than what a decimal can store.
Example: 1/(16^10)

So how can I convert the solution to the problem above. Which equals 0.00000000000090949470177292824, to a string value that is exactly as it's shown?
Cause when I convert this to a decimal I still end up with a string in scientific notation..

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## EXCEL Reads A Text String As Scientific Notation

Dec 31, 2007

I am working on a project that involes reading an Excel file, picking through it, then creating a flat CSV file.  One of the the data elements I am picking up is a 9 character string that may be numeric, or contain one or more alpha chatacters.  Excel has a nasty habit of converting long numerics to scientific notaion.  I can overcome this by converting the "general" string to "TEXT".

However, there is one instance where I can not get the function to work...the string is "90333E108" ( the CUSIP for USU).  Regardless, the text string is saved properly into the CSV file.  When opened in a text editor, it reads correctly.

When opened with Excel, it is in scientific notation.  Changing the field to "text" from "scientific" still displays "9.03E+112".

how to create an csv file that Excel will open and read correctly?

You can test this by creating an Excel workbook, format all cells as TEXT and add the following data:

90333E108
123
2

[Code]....

## Datagridview Can Not Get Rid Of Scientific Notation Style Numbers?

Feb 19, 2009

I can not column 4 of my Datagridview1 to display numbers as ###,###,### with not decimal places it seems stuck in Scientific notation mode, even though I have set it several different ways in the menus.How do I set it in the program like I set the column width.

DataGridView1.Columns(2).Width = 80This is in VB ExpressGary

## Displaying Scientific Notation In VB Express 2008?

Sep 28, 2009

I've written a small program that does some calculations and I want to display some of the results in scientific notation. For example, I want to display 0.005 as 5.0E-3.

## Scientific Numbers From String Formate To Double?

Jun 13, 2012

I was using the following code:

If Entry.ToLower = "test" Then
Dim test As Double
test = Double.Parse(InputBox("test", "test")[code]....

to check if I can inputoutput scientific numbers tofrom Double.I was able to output the data successfully. (With "E" instead of "* 10 ^"  but that's fine)But when I input the same number error occurs.

"System.FormatException: Input string was not in a correct format.
at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt)
at System.Double.Parse(String s)
at Particle_Simulation.General.ConsoleEntry(String Entry) in G:ProjectsVisual BasicParticle SimulationGeneral.vb:line 23"

## Displaying Numbers In Their True Form (not Scientific Notation)

Mar 12, 2009

6/0
6/1E-10
6/2E-10

[Code].....

I need those in there true form not scientific notation, how do i do this in vb.net?

## VS 02/03 Use A Double Dot Notation Instead Of The Single Dot Notation?

Apr 11, 2009

I am trying to have a firm grasp of VB.NET and wondering if there is a way to use a double dot notation instead of the single dot notation people are normally accustomed to?The double dot notation that I want to implement is shown directly below:

PersonData.Birthdate.IsValid

Currently, the only way I know is by using the call shown below which I suspect is not using the full capabilities of .NET:

Validations.IsValid(PersonData.Birthdate)

My code is shown below:

vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
modVar.intDay = 25

[code]....

## Write Double In Non-scientific Form?

Sep 18, 2009

I would like to know if Visual Studio does have a setting where you can choose whether it should write nombers like 0.00000127 in scientific notation or not? I am writing such doubles to file but VB2008 writes them in scientific notation. If I treat these numbers as decimals then it writes them correctly, but I also have to take care of performance as I'm writing lots of numbers.

## .net - Converting A String To Double

Jun 17, 2009

i am converting a string to double?i would like to know in advanced whether it would case an error to convert a string to a double. for example if i try to convert "hello" to a double, it would give me an error. is there a way for me to know ahead of time whether converting something will cause an error?

## Converting Double To String?

Mar 25, 2010

The message does not appear if a number is not entered - why?

Dim
IAL As Double
Dim inputIAL As Double

[Code].....

## Converting From Double To String?

Nov 2, 2010

I was trying to convert from Double to String and everything working fine. But when I tried some bigger number with fractions in it. I got the number but rounded. I tried something like that:

Dim dd As Double = 1235212435.3453636
Dim str As String = dd
MsgBox(str)
But what I got is 1235212435.34536 instead of 1235212435.3453636

## IDE :: Converting To Double From String In VB?

Nov 1, 2009

Public Class frmWaiter
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
'Bill Amount Input Box
Dim txtBillAmount As String

[code]....

## Converting A String To Double And Back

Feb 24, 2012

I am storing a value (represented as a string originally) like this -2345678901234.12345678912 - in a double variable. After storing, it is represented in an exponential format (with an e). How do i convert this exponential representation to the original(string) representation?

[Code]...

## 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.

## Splitting String And Converting To Double?

Apr 25, 2012

I'm new to VB, I'm now want to know how to convert received string to double.I'm receiving string as 420.8 280.9 140.2 like this from serial port.. and transferred it into textbox..I'm using following code to split string and to convert to double

Dim ReceivedText As String
ReceivedText = txtReceived.Text
Dim str_RY_1U, str_RY_1V, str_RY_1W As String

[code]....

## VS 2008 - Converting From String To Type Double Not Valid

Mar 4, 2010

I'm trying to delete the 2 last characters of a string if they are "||". This is my
Dim MyReader As Microsoft.VisualBasic.FileIO.TextFieldParser
MyReader = My.Computer.FileSystem.OpenTextFieldParser(playlist)
Dim TextFields As String() = MyReader.ReadFields()
Dim last As String = TextFields.Last
If last.Substring(last - 2) = "||" Then
last.Remove(last - 2)
End If
But it gave me the following error on the highlighted line:
"The converting from the string to the type Double is not valid."

## Splitting String Received From Serial Port And Converting To Double

Apr 26, 2012

I'm new to VB, I'm now want to know how to convert received string to double. I'm receiving string like this 420.8 280.9 140.2 from serial port.. and transferred it into textbox.. I'm using following code to split string and to convert to double

[Code]...

## Converting Double Data Type To String Data Type

Jan 31, 2010

I have a program that calculates commission, but if the commission is nothing then I do not want it to show a zero commission. I want a message box to show a message that there is no commission earned.

## Reading Data From Serial Port And Converting To Double Format?

Apr 3, 2012

I am using a VB.NET(VS2010) to read data from serial port. I have 8-bit data to collect through rs232. This data is represented numbers. What reading method should I use and how to convert it to double format?

## VS 2010 Converting Strings Received From Serial Port To Double?

Apr 25, 2012

how to convert received string to double.

I'm receiving string as 420.8 280.9 140.2 like this from serial port.. and transferred it into textbox..

I'm using following code to split string and to convert to double

Dim ReceivedText As String
ReceivedText = txtReceived.Text
Dim str_RY_1U, str_RY_1V, str_RY_1W As String

[Code]...

For calculating percentage RY_R is calculating fine.. But when it comes to RY_Y it showing error "string not in a correct format..."

## Double If Statement - Getting Error "Conversion From String "frog1" To Type 'Double' Is Not Valid."?

Apr 12, 2011

I've been just making random programs trying to get the hang of the new language this time I was making a leap frog game where it switches back and forth beetween frogs every time a button is pressed. It also checks if the frog can land in the text box above the button pressed, if there is another frog there a message box will pop up saying sorry space is filled other wise the frog should land there.

[code]...

The error message says "Conversion from string "frog1" to type 'Double' is not valid." I understand what a double is but I've tried And If and that causes a bunch of errors.My Question is whats wrong with this cod and how can I make a double if statement???PS I did try to make an array to shorten this but thats in a different fourm will post URL later

## Converting Values Of Type "double" From One To Another?

Sep 4, 2009

I have an Excel application, that is converting values of type "double" from one to another. I have the same data as Excel in SQL 2005.I have procedure, that is making all calculation apart rounding. In Excel I have specific format result of this calculation - "_-* # ##0,00_-;-* # ##0,00_-;_-* "-"??_-;_-@_-".How to implement it in VB.NET or C#?

## Converting A String Of Letters To A String Of Numbers?

Apr 10, 2009

I'm having a problem converting a string of letters to a string of numbers.  I've tried:

Dim A As String = ""
Dim strOutput As String = ""
Dim X As Integer = 0

[Code].....

## 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'

## .net - String Query Error Conversion From String "iif(CurCons = 0, " To Type 'Double' Is Not Valid

Jul 4, 2011

I make a query in coding. But I got conversion error.My query is below

Dim strSelect As String = ""
strSelect = "SELECT " & _
"Description As [Desc], " & _

[code].....

Exception error is like

Conversion from string "iif(CurCons = 0, " to type 'Double' is not valid

Actually, in my report, i wanna show if it's zero then '-'. If i set it in this string.I got another error like below The provider could not determine the Decimal value. For example, the row was just created, the default for the Decimal column was not available, and the consumer had not yet set a new Decimal value.

From da.Fill
Dim cmd As New OleDbCommand(strDynamic, m_DBConn)
Dim da As New OleDbDataAdapter(cmd)
da.Fill(ds, "tblCur")

## Hungarian Notation In .NET?

May 17, 2011

Our programming teacher taught us to use the Hungarian notation (e.g. intMyInteger, strMyString,...) while programming.But I have heard somewhere this isn't actually used in the professional world. Is this true?

Edit: I just found out this is actually "Leszynski"

## Build A Scientific Calculator With Vb?

Aug 11, 2009

I'm trying to build a scientific calculator with vb .net, except it is vista glass :-p

I basically want the user to be able to enter an equation like SQRT(5 * 6) / (2 ^ 4) and then I want vb to use system.math to solve it. If I write this in my code, vb is able to do it, so how could I do this at runtime.

## Good Scientific Calculator Example?

Apr 16, 2010

Show me a link to the source of a good scientific calculator example?

I'm using VB express 2008. I've been searching, but I can't find any good ones that work with express 2008!

## Checking If A String Is A Double?

Jun 17, 2009

If Double.Parse(list_numbers.Item(i), possibledouble)

list_numbers is a list of strings

list_numbers.Item(i) = "0.000"

possibledouble is a double

debugger returns "input string was not in a correct format"

i thought that the double parse would convert the string into a double format of "0.0" but it gives me an error.

## Conversion From GPS-string To Double?

Oct 20, 2011

I'm reading Lat + Lng coordinates form my database. I need to convert them to double. This is what happens:

Dim strLat As Double = CDbl(reader.Item("lat").ToString) MsgBox(strLat.ToString) ' << result: 5237861 should be: 52.37861. The point is removed.

## Conversion Of A String To Double?

Jul 30, 2011

I want to convert the string value "13.3939" into a Double yet when I tried Convert.ToDouble("13.3939"), Double.Parse("13.3939") and CDbl("13.3939") they all returned 133939.0. Does anyone know how to do this properly?

## Convert String To Double - VB?

Jul 23, 2009

Is there an efficient method in VB to check if a string can be converted to a double?I'm currently doing this by trying to convert the string to a double and then seeing if it throws an exception. But this seems to be slowing down my application.

Try
' if number then format it.
current = CDbl(x)

[code].....

## Data From String To Double?

Nov 15, 2011

As I compare the DSO with the DSO para, it seems doesn't compare both data at all. I have been converting the DSO as double first between comparing it as if i compare with string it doesn't work.

Dim dso1 As Label = CType(e.Item.FindControl("dso1"), Label)
If Not IsNothing(dso1) Then
dso1.Text = e.Item.DataItem("DSO").ToString

[Code].....

## Format Double To String

Jan 28, 2011

I would like to format double number like below;[code]Is this possible?

## How To Convert String To Double

Aug 30, 2010

I want to convert string to double.

[Code]...

num should be 1.5432 but i get 15432 How can i get as it is in the string?

## Put A Double Quote Into A String?

Mar 17, 2011

I have a problem that seems trivial. In an argument to an activity I need to supply a path.

This is done by this code:

String.Format("a
-bd -y -tzip {0} {1}* -r",
Path.Combine(BinariesDirectory,
"output.zip"),
BinariesDirectory)

However, the directories parameters contain spaces so they have to have quotes around them. I tried with single quote ' that works fine to put in the string, but the command shell executing the command ignores these. So it has to be double quote "

I have tried all methods I have fount on the Internet, for example to have a backslash before the double quote and to have three double quotes, but nothing seems to work. I get a compiler error as below.

Error 4 Compiler error(s) encountered processing expression "String.Format("a -bd -y -tzip "{0}" '{1}*' -r", Path.Combine(BinariesDirectory, "output.zip"), BinariesDirectory)".Comma, ')', or a valid expression continuation expected.

## String To Double Error

Aug 13, 2009

I created an application in vb.net 2005.It works fine on my machine. I tested several different test machines and all were working fine. As for the client, it's generating an error. My application reads from an excel sheet and imports the values to an oracle database. the error being generated is: "conversion from type string to type double is not valid". Why is it generating on on the client's computer and not mine?

## Implementing Notation And A Messaging Center?

Nov 15, 2011

I've created an application where our clients can have access to our program by logging in. It uses our database for most information. I want to implement a richtextbox where it saves notes but i don't know if i should be saving that information as a file or what. Also I also have an application that handles everything that deals with our clients I also want to implement a messaging system that can leave a message to the client upon opening the application if they are missing any information that we require. Can someone point me the right direction on where to learn about this.

## Official Notation For Private Fields?

May 13, 2009

Is there any official notation for private fields? Like mVar, m_var or another notation?

## Conduct A Code For A Scientific Calculator?

Jun 21, 2010

How to code the sqrt, log, sin,cos and tangent buttons please write down the code for the mentioned buttons

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