If I want to populate an ArrayList with values 1 and 2 it works.[code]I found here a link about string to integer conversion in visual basic but I don't know how to deal it to my problem.
View 2 RepliesI am getting a conversion type error on the red line?
Private Function GetGap() As Integer
Dim VowelNumG As Integer
Dm Vowels as string = "AEIOU"
Dim VowelIndexG as integer
For VowelIndexG = RandomStr.Length - 1 To 0 Step -1
[Code] .....
I have an unbound datagrid of which I load a csv into it.I then add an additional column and populare it with row numbers:
Private Function AutoNumberedTable(ByVal SourceTable As DataTable) As DataTable
Dim ResultTable As New DataTable()
Dim AutoNumberColumn As New DataColumn()
[code]....
I then add to my datagrid :
datagrid1.DataSource = AutoNumberedTable(ds.Tables(strFileName))
I then try to update my sql table:
My insert paramater:
insertCONTACTS.Parameters.Add("@Company_ID", SqlDbType.Int, "Company_ID")
My add row:
row("Company_ID") = datagrid1.Rows(r).Cells("Company_ID").Value
But I get the above error, I thought when i added the column, the values in the rows were integer.How can I convert my column to integer.
I designed a payroll application and I keep getting the error conversion from string to type Integer is not valid.Also when I enter the name in one of the textboxes it reads form and not my name.[code]
View 2 Repliesthere is one search button to see the report on datagridview using year..so when the more items are there in database correspond it year(say 2012)... the above exception is thrown by filling the datgridview,the problem happens when it tries to connect with crystal report,it shows error...Remember that i face this problem only if there are more records in my database(exactly more than 100 rows)...when i delete few rows from the database,it works fine..I have created a table and added that table to a dataset,then assigned that table1 as datasource for crystal report
[Code]...
there is one search button to see the report on datagridview using year..so when the more items are there in database correspond it year(say 2012)... the above exception is thrown by filling the datgridview,the problem happens when it tries to connect with crystal report,it shows error...Remember that i face this problem only if there are more records in my database(exactly more than 100 rows)...when i delete few rows from the database,it works fine..I have created a table and added that table to a dataset,then assigned that table1 as datasource for crystal report
Public Class crystalform1
Dim r As DataRow
Dim t As DataTable
[code]....
I'm trying to create a linked list of an array of integers. Why is the following implicit conversion required?
When I run the code that contains that conversion, I get the following error.
As a real-time data acquisition user control data (a packet of an array of bytes) arrives every second, is converted into an integer array and inserted into a linked list.
The most recently arrived data is painted as coordinates on a grid at the right of a PictureBox using Graphics.DrawLine (pen,X1,Y1,X2,Y2).
The oldest data (arriving 120 seconds ago) will be drawn at the leftmost portion of the Picturebox.
Why a linked list rather than a list? To display 120 views of time sequence data, the draw routine the most recently inserted node to a node that points to Nothing. How do I limit the length of the linked list to 120 nodes and always ensure that the last node points to Nothing?
Do While Not item Is Nothing
item = item.NextItem
Loop
Basically I am trying to have it so when they click the save button it changes the timer.interval to what they entered in the textbox.On form load I have it do this.
Timer2.Interval = My.Settings.timer_interval
timertxt.Text = Timer2.Interval / 1000
When they click the save button.
My.Settings.timer_interval = timertxt.Text * 1000
Timer2.Interval = My.Settings.timer_interval
The program works, but it throws an error Conversion from string "" to type 'Integer' is not valid.I understand that the textbox is a string and the Timer Interval is a Integer, make it work without having to click continue after it throws the error.
Im geting a error:InvalidCastException was unhandled by user code Conversion from string "UNITID, INSTNM, ADDR, CITY, STAB" to type 'Integer' is not valid.
Dim
WFSDINSTITUTION As
String
=""
[code]....
Many of you are aware I am making a AiO Character Creator for all tabletop RPG games.
My code is:
Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox2.TextChanged
Dim totalXP As Double
[Code]......
Error: Conversion from string "" to type 'Integer' is not valid.
Because I am running Windows 7 Ultimate RC 64-bit, would I have to put Int64?
My code is coming up with this error " Conversion from string "" to type 'Integer' is not valid.
Public Class Form2
Dim num1 As Integer
Dim num2 As Integer
[code].....
I am using :
Dim di As DirectoryInfo = New DirectoryInfo(My.Settings.Outgoing(CreateFolderTextBox.Text)) to create a directory
[CODE]......................
But I get the following error: Conversion from string "testfolder" to type 'Integer' is not valid.
The project I'm working on is a Multichoice RadioButton quiz with answers and percentintegers. At the end there is a MsgBox that gives the number of answers counted 'correct'and the percent 'correct'. Also after you press the confirm button on that MsgBox it emails the results to the built in information given on the SMTP information. What I am trying to do now is show the input typed into the textbox on FormA in the MsgBox at the very end.
View 3 RepliesI get an InvalidCastException was unhandled on converting the .value to .text but I can't figure out how to convert it. Tried a few different ways but nothing seems to work. load a file from disk and have that be assigned to the trackbar.value?
Dim FileName = (App_Path() & "SettingsPingTimeout.txt")
If File.Exists(FileName) Then
lblPingTimeout.Text = "Ping Timeout: " &
[Code]....
I am trying to write a function which accepts a string as input and gives the integer as output,The string can be in any of these format for ex:2,500.75 or 2.500,7501 or 2'500.7513 or 2500,254 the output of function should be like 2500.56 Basically trying to get rid of the thousand separator which can be either a comma,or apostrophe. ..
View 6 RepliesWhen trying to combine the User path with another path, I get a an error:"Conversion from string "User" to type 'Integer' is not valid."
vb.net Dim Variable As String = IO.Path.Combine(Environment.GetFolderPath(Environment.UserName), _
"AppDataLocalLowSunJavaDeploymentcache") I guess my understanding of how to combine paths is a bit unclear. I didn't realize that by doing it this way, I was attempting to convert the path to an integer.
Heres my code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim product As String
[Code]....
Its says conversion from String to Integer not valid for this line: sales = InputBox("Please Enter Your Product Sales: ")
Also, when the first messagebox comes, how can I make it when you select "cancel", the programme then exits the sub routine and a second messagebox dosent come up?
i have a text box and i want to insert the textbox value to my sql procedure in server and then generate record in the datagrid view ... the parameter in sql server i declare as varchar and actua database column item datatype is nchar.. anyway in what suitable datatype that i have to put in my visual basic for the textbox in order to transfer the vlaue to sql procedure and generate result
View 7 RepliesI have the following IF Statement checking if the function GetNexstAddress (which gets the ClientID from GetClientFleetInfo(i).CLIENTID) . SECONDARYCITY
is there.
If GetNextAddress(GetClientFleetInfo(i).CLIENTID).SECONDARYCITY(0) = Nothing Then
NextAddress = " No next Destination"
Else
[Code].....
I have the below code in my app... Nothing is declared as a integer so I dont understand or see where the problem could be... It is saying:
Conversion from string "9838 Co Rd 47" to type 'Integer' is not valid.
The address is flowing through the entire function as a string the only place I think it could be getting changed somehow is in a function call... Below is the function that throws the exception. Followed by the function that returns the address.[code]...
I am currently making a project for school and this project is to determent the poker hand, where the user can only check 5 check box and each checkbox represent a card , and when I try to test it and check the box it would let me and this message popped up:
Conversion from string "" to type 'Integer' is not valid.
And the arrow point to this line of code
i = CInt(Mid(strChk, 1, 2))
Public Class Form1
Private Sub RealTime_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RealTime.Tick
Real_Sec.Text = DateAndTime.Now.Second
End Sub
Private Sub Real_Sec_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Real_Sec.TextChanged
Sim_Sec.Text = Sim_Sec.Text + 1
If Sim_Sec.Text > 59 Then
Sim_Sec.Text = 0
End If
End Sub
End Class
When the timer is on, it will tell the current seconds in real time, and when the text in the textbox for the Real_Sec changes, it will increment the text or the value in the Simulated seconds... FROM 0... No matter where the seconds are in the real seconds, it will display real or simulated seconds in the sim_sec text box... Starting from 0... But there Real Seconds, because the Timer is not accurate. So I Simulate the Real Seconds. How to write it the right way, it's keeps throwing the error:
An error occurred creating the form. See Exception.InnerException for details. The error is: Conversion from string "" to type 'Double' is not valid.
So I'm trying to create a program in Visual Basic for my uni coursework and I'm kinda stumped a tad here. I've created most of it, I just need to write the files to a txt file (in the same folder as the program [bin/debug]).
I'm creating a some kind of employee reference form. Fill in your details, figures out gross pay, net pay and all the taxes an employer has to deal with. When you press Save, the details should all write to a file and I should be able to select from multiple ID's in my combobox for the employee ID reference. If I try to save a file with the same ID number I should get thrown an error. every ID should be saved under the Employee ID box.
Here's my code for the save button:
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim s As employee = New employee
[Code].....
a 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 have a dataset containing a datatable, and I enumerate all rows in that datatable. When trying to format a column in that row, I run into an exception. (Part of) the code is:
For Each dr As DataRow In ds.Tables("records").Rows
file = dr("timestamp").ToString("yyyyMMdd") & "~.wav"
Next
This results in the following error message:
Conversion from string yyyyMMdd to type Integer is not valid. (translated from a Dutch error message to the English equivalent)
dr("timestamp").GetType.FullName results in "System.DateTime", so I don't understand why I run into this exception, as for example Now.ToString("yyyyMMdd") results in "20091002", and "Now" is of the same type as dr("timestamp"), "System.DateTime" that is.
I am a novice programmer to VB 2008 and I am trying to develop the following code for a game. When I build the following code, an error message appears:
Option Strict On disallows implicit conversion from integer to string.
Another error message
appears: Name FuchsiaTurnScoreLabel is not declared.
Option
Strict
On
Public
Class PlayForm
'Declare integer and decimal variables for calculations
[Code] .....
I am working on a program that has a combobox that gives you selections for email address endings, but when I try to enter it in as part of the final email address get an error. Here is my
mail.To.Add(TextBox1.Text(ComboBox1.Text))
When I click debug, it give me this error. "Conversion from string "@txt.att.net" to type 'Integer' is not valid."
"@txt.att.net" is the value of the combobox selection.
In the end it should be something like: "anything@txt.att.net"
(Textbox1.text = "Anything" & the current ComboBox1.text selection = "@txt.att.net")
I have an InputBox where I want someone to input a number. The number would be an integer. The line looks like this amount1 = InputBox("how many?", "how many?")If they click cancel, it errors out because it can't convert blank ("") to an int. How can I do this with InputBox and not get that error?
View 1 RepliesI am having problems with the code below. I have copied and pasted the code from a program that I wrote to test and see if the code does work. In that program it does. But when I use the same code in another program I get the following error message. invalidcast exception was unhandled conversion from string to type integer is not valid.
[Code]....
When I use the included code to position an InputBox over the start of a listbox named lb I get the following message: Conversion from string "Fibonacci Demo" to type 'Integer' is not valid.
The code works ok if I remove the L,T, parameters. If i replace L,T with 100,100, I get the same error message.
Dim MyValue, Msg, Title, DefaultVal As String
dim L as integer, T as integer
Msg = "Enter Value > 2 and < 45 to be evaluated"
Title = "Fibonacci Demo"
DefaultVal = "5"
[Code]...