I am getting an error message: Unhandled exception has occurred in your application.conversion from string"" to Double is not valid
I dont get this error when I am in debug mode only when I publish the program.
I am using an about Box in my program and the version number doenst change.Its 1.0.0.0.0 , does anyone know how to sink the version number in the box with the version number being published.
View 3 RepliesI've been using a piece of code I found that reads in joystick movement into my VB application using DirectInput. Building an executable works great, the program operates as should be, however when I publish my program for final deployment, I get the following error:
"WindowsApplication has encountered a problem and needs to close. We are sorry for the inconvenience."
Here's some of the error details:
EventType : clr20r3 P1 : windowsapplication.exe P2 : 1.0.0.0
P3 : 4c0f1ae6 P4 : microsoft.visualbasic P5 : 10.0.0.0 P6 : 4ba2183b
P7 : 88 P8 : 8 P9 : system.io.fileloadexception
And then a second error pops up shortly after:
AppName: windowsapplication.exe AppVer: 1.0.0.0 AppStamp:4c0f1ae6
ModName: kernel32.dll ModVer: 5.1.2600.5781 ModStamp:49c4f482
fDebug: 0 Offset: 00012afb
The errors only occur once I try installing the program and just before the application loads.Here's the code for the program:
Imports System
Imports System.Windows.Forms
Imports Microsoft.DirectX.DirectInput
Imports Microsoft.DirectX
[code]....
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
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?
View 6 RepliesI am doing a project entitled "Automation of Student admission process".I am having a datafield UGPercent of datatype(18,3) NULL in my database.When i tried to insert it using the following code Insert into Markdetail(UGPercent)values(" & txtperc2.Text & ")..It shows me the error:conversion from string to double is not valid.what is wrong in my code?
here: Markdetail is my table
txtperc2.Text-The textbox used to get the UG percentage.
I have code that loops through a string array to add words one at a time to a line of limited length. I am trying to fit a phrase on up to four lines, centering the words on each line. My code appears to add the first word but on the 2nd word I get a "conversion from string "IS" to type 'Double' is not valid" error.
Here is my code so far:
varResult = Split(strPhrase)
intWordCnt = UBound(varResult) 'count words in phrase
'make words fit on one line
[Code]....
The phrase in strPhrase is "GOD IS LOVE"
I don't understand why I am getting this error when I didn't on the first loop through the code and it Put the word "GOD" into the line.
I noticed that if I leave off the terminating double quote for a string constant in Visual Studio 2010, there is no error or even a warning, i.e.
Dim foo as String = "hi
However, the continuous integration tool we are using flags an error:
error BC30648: String constants must end with a double quote.
Is there some language rule in VB.Net that makes a terminating double quote optional "sometimes"? Is there some setting in Visual Studio that will make it flag this as an error, so I can avoid "breaking the build" in this way?
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")
I wanna perform a function like this. When you save a record, I need the primary key of that record to be auto-generated (X001). Say, when you create a new record and save it, it should be saved like X002 automatically.So to test this before I implement that on this project I'm working on, I created this little program.form.png
All its supposed to do is, when you click on the OK button it shows a code that is fetched from a database table. (X001). Then when you click on it ober and over again. The number should increase. X002, X003, X004... so on.Here's my code
Imports System.Data.SqlClient
Public Class Form1
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOK.Click[code]....
But when I run it, it throws this conversion error.exception error.png.I know its pretty straight forward so I tried to correct it with what I know
I am new to VB 2010. Just now i made a program in Vb and published it. In my computer it worked without problems. But in my friends PC, it shows Dont Send Error. I created the program using .NET 3.0 and my friends PC has .NET 4.0 Extended installed.
View 2 RepliesI made an app in vb.net express edition after publishing there are many files in published folder, my question is if a user removes any of files in the published folder or replaces it with other files and runs the app the app must show an error is it possible?
View 16 RepliesI have published application before and they all (3 setup files) work fine. The problem is I don't know anymore how I exactly did it. Now I am trying to publish another form which has a connection to my sql database. The publishing goes fine: publishing folder is: C:Movie-databaseApplication 4 and installation folder is the same, and I therefore leave it empty. Application is available only online. But when I execute the published setup.exe I get two windows with no info about the error: see attachment.
View 3 RepliesI have published application before and they all (3 setup files) work fine. The problem is I don't know anymore how I exactly did it.Now I am trying to publish another form which has a connection to my sql database. The publishing goes fine: publishing folder is: C:Movie-databaseApplication 4 and installation folder is the same, and I therefore leave it empty. Application is available only online.But when I execute the published setup.exe I get two windows with no info about the error: see attachment.
View 12 Repliesa user will enter a number, n, which ranges from 1 to 30. they will also enter a "P" or an "S" (sum or product). depending on which was selected, it will calculate the sum or product of the numbers from 1 to n.i'm having a conversion error on line 5 stating "Conversion from string "S" to type 'Double' is not valid." [code]
View 2 RepliesI am using two textBox's. The first to enter the data. The second to convert to answer the program complies with no error, the debugger cannot convert data type from string to double.
[Code]....
why does the program not convert the textbox txtFahrenheit from string to double?
I'm doing some error debugging trying to get the errors on our website down to a minimum and there seems to be an error that is popping up quite a lot Conversion from string "" to type 'Double' is not valid.
I'm unable to replicate this problem but I can see that it is happening.I've been looking through the code in one of the pages and strolled across this
Dim varWeek As String
If varWeek < 10 Then
'Do something'
End If
Could this be causing the problem as it is trying to see if a String is less than 10 which is an Integer?As I said before as I am unable to see this error in the first place so changing this to an Integer doesn't change anything on my system.
message error in server is: conversion from string "NETWORK SERVICE" to 'double' is not valid, the application in my local machine works perfectly, the problem is there in the server. so i can't find in the web what about the "NETWORK SERVICE".
View 3 RepliesI have a few question Regarding VB.NET 1) I have a datgridview and i want when user input the datagrid 3rd cell the 4 cell of datagrid readonly = false means user not input value in 4th cell 2)i want a autonumber generate in textbox is alphanumeric like "vendor9" or " "vendor10" bt when i go to save this it give error of "double to type string is not valid" i have use a following coding
CODE:
I have a bad bug in my program where if a user presses the check(calculate) button when there is no input in the textbox the program displays this error: "Conversion from string "" to type 'Double' is not valid." I would like to resolve this but I am not sure how to do the conversion. I was thinking possibly CType but I am hearing talk of parsing. How do I go about this? the textbox is called mskTxtInput and the button object is called btnCheck which does all the calculation and processing.
Private Sub btnCheck_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheck.Click
pic1.Visible = False 'hide picture
pic1.Image = My.Resources.A
[code]....
iam passing a textbox value(the value is 10:1:1) into a string and when iam running the application iam getting the following error "coversion from string "10:1:1" to double type is invalid". kindly find the code below and help me on the same: (also the textbox values should be greater than 0 always)
Dim strEncrypt As String = txtData.Text
If strEncrypt > 0 Then // I am getting the error here
txtEncryptedData.Text = Encrypt(strEncrypt)
Else
[code]....
I am getting an error: Conversion from string "" to type 'Double' is not valid.If any of my textboxes are blank even though I have used an if AndAlso statement.
Private Sub tbWidth_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles tbWidth.TextChanged
Dim wMath = tbWidth.Text / Form1.tslblWidth.Text
Dim hMath = Form1.tslblHeight.Text * wMath
If Form1.tslblWidth.Text IsNot Nothing AndAlso tbWidth.Text IsNot Nothing Then
tbHeight.Text = hMath
End If
End Sub
Using VB.Net If the grid cell value is empty, i am getting error as "Conversion from string "" to type 'Double' is not valid"Code (gridview_CellLeave)
Dim z1, z2, z3, z4 As Int32
If grvList.CurrentRow.Cells(1).Value <> "" Then
z1 = grvList.CurrentRow.Cells(1).Value
End If
If grvList.CurrentRow.Cells(2).Value <> "" Then
[Code]...
1st i get this error
query error and Conversion from string "Insert into Table1 (cust_id," to type 'Double' is not valid.
when inserting data to database 2nd error is
when use employee name to get employee id i got result always 0 here is the code
" select id from customers where name2='" & ComboBox1.Text & "'"
error: Conversion from string "The world is veiled in darkness." to type 'Double' is not valid.
If Label1.Text = 8 Then
Label2.Visible = true
End If
im trying to make label1 .visible = true when label5.text = 8 i set the properties to label1.text to false so when the counter hits 8 it turns label1.visible = true
I have the following code which is not working, giving an error Conversion from string "" to type 'Double' is not valid.What am trying to do is if the shown value on the combobox is empty then set the two textboxes to empty strings.
If cmbactiveproj.SelectedIndex = "" Then
txtclientOrgnw.Text = ""
txtProjectID.Text = ""
End If
i am getting error like "Conversion from string "0/" to type 'Double' is not valid." in the underline part of the coding ..........
here iam using sqlserver-2005
here my coding is
Protected Sub save_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles save.Click
Dim conn As New SqlConnection(ConfigurationManager.ConnectionStrings("guest1").ConnectionString())
Dim booking_no As Double
Dim year As Double
[code]....
How they relate and differ from each? What are the best practices for version control? Is there a primer about publish online? Or a good book?
And is it possible to make ClickOnce and a msi in one solution of VS 2008? If so, is there any conflict or pitfall?
BTW I am using VB if that makes any difference.
I'm trying to install Visual Basic Express edition 2010 on my windows Vista computer. The .net framework 4.0 is installed (or so the control panel says), but the visual basic installation fails every time it gets to "Microsoft Visual Basic 2010 Express," which is the first item to be installed. before installing, I uninstalled the .net framework 3.5 along with vb and c++ 2008 express editions.First, I get the following error message 7 times in a row: The installer has encountered an unexpected error installing this package. This may indicate a problem with this package.
The error code is 2908.Then, I get the following error message: Error 1935.An error occurred during the installation of assembly'msddslmp,version="10.0.0.0",publicKeyToken="b03f5f7f11d50a3a",processorArchitecture="MSIL",fileVersion="10.0.30319.1",culture="neutral". refer to Gelp and Support for more information. HRESULT: 0x8002802F.Then, the installer quits, with the screen: Setup could not install the following component:Microsoft Visual Basic 2010 Express - ENU?
I have developed a windows based application using visual studio 2005 called DMS. On the client side, this application runs on asp dot net framework 2.0. We have created its setup file which has to be installed on the client pc. After the installation of the application, some of the users get the error message as:
DMS.exe - .net framework initiation error Unable to find a version of the runtime to run this application
(I have also attached the screen shot of the error message.) Trouble shooting done by me:
a. I had tried the re-install Dot Net Framework 2.0.
b. Scanned the PC for virus attack.
c. Install dot net framework 2.0 first and then the application.
d. Un-install and re-install the whole application.
But none of the solution works. The only thing that works temporarily is un-install the whole application and re-install it. Then it works for a few hours.
