I am working a VB project that requires me to create an "Average" Function. What is the correct format in creating an average function? I tried different ways and gives me an error.
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I'm having a problem creating a function for calculating an average. I need to divide the sum of a column of integers by the number of rows in that column. These integers are generated by a datediff command and their values are assigned to textboxes in a report. The results can only be whole numbers, no decimal points.
I'm pretty new to this so if this is an obvious question please excuse my ignorance. If you need any more information to address my question please let me know.
To have a function that takes the average (which is calculated by a different function) say for example the average is 6, now the function is to take the number 6 and get the variance from six to another number lets say its 12 so this will return a calculation of 50% variance. now here comes the issue, i have it calculating the variance how ever lets say that there is a score that is 0, how can i make it calculate the variance without taking count for that 0? i guess you can say i need it to "skip" if its a 0.
View 5 Repliesvar queryString = string.Format("filename={0}&filestream={1}&append={2)", fileName, Convert.ToBase64String(b, 0, bytesRead).ToString(), 1);
above line of code giving error 'Input string was not in a correct format.'
I'm new to coding and i need to make a program that takes 3 percentages(numbers) and returns an average of the grades in letter format(A,B,C). This is what I have so far:[code]......
View 2 RepliesI'm trying to write a program that allows the user to enter 10 numbers into an input box and then the program will use a function to calculate the average of those numbers. I'm really illiterate when it comes to Visual Basic.
View 2 RepliesWrite a program that reads in a set of grades for a class.The program takes in the number of students in the class from the user. When the Get Grades button is clicked the program then reads in a grade (0-100) for each student using an inputbox. The program should then display the percentage of students who pass and the percentage of students who fail.The program should call a function to calculate the average grade for the class. Then finally the result is then displayed.
Public Function GetPassRate(ByVal intGrade As Integer) As String
Do Until gradeCounter >= NumericUpDown1.Text
If intGrade >= 40 Then[code].......
How to validate IpAddress. I mean how to check whether the entered Ip is in correct format?
View 15 RepliesWhat is the correct format of using keypress in VB 2010. I have tried the following code to use ESC as shortcut to closing the form but its not working: [Code]
View 4 RepliesWe have a field called employee number in our database. It is char(10) field. we are storing the numbers right justified. so we are storing the numbers as "1", " 2" etc. I am not sure why we started doing this because it happened before I started working here.
Because of this, each function in the business logic that has an employee number as one of the parameters needs to right justify the number. If we forget that, it won't update the database properly.
My question is: Is there a better way to do this so that we don't have to format the number in each function?
I'm having an issue with a page I created that was working fine two months ago. Nothing has changed in structure of the SQL tables and I have even done an insert within SQL to the table and all works fine with SQL. So the problem lies within the code. I'm getting this error:
Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.FormatException: Input string was not in a correct format.
Source Error:
Line 71: Dim sv As String = grd.Rows(i).Cells(7).Text
Line 72: ApproveManifest(sv, ffisID)
Line 73: Insert(sv.Remove(0, 6))
Line 74: PushIn001(sv.Remove(0, 6))
Line 75: PushIn002(sv.Remove(0, 6))
[Code] .....
If I comment out line 73 and run it, I get the same error on 74. If I comment out 73, 74 and 75 the code runs to the end fine, it just doesn't insert the data into my table. It was working just fine and now it's not working.
Making a currency conversion program and I'm trying to run this code and I get an error saying that "Format exception unhandled: Input String is not in correct format". Then it points me to the line decUSDollars = Convert.ToInt32(strUSDollars) under Private Sub btnConvertButton_Click. I've looked all in my textbook and I can't figure it out.
' Program: Currency Converter
' Author:
' Date:
[code]....
My error message is as listed in the header "Input string was not in a correct format" however the stack trace is even more cryptic [code]...
This is worse due to the fact that nowhere in the project does it use "ParseDouble". I believe that this has something to do with the objectfactorylibrary but can't pin anything down.
With the following snippet
Foo = IIf(String.IsNullOrEmpty(txtFoo.Text), 0, Integer.Parse(txtFoo.Text.Trim))
I get the error when I submit the field without a value: "Input string was not in a correct format." I don't have any space or something else and String.IsNullOrEmpty(txtFoo.Text) returns true.
I am having some trouble with a DataBound TextBox with the Decimal DataType.
Here is the situation:
- I have a TextBox bound to a column in DataTable in a strongly typed DataSet.
- I have an ErrorProvider that has the BindingSource set to the same binding source as the TextBox.
- The Datatype of the column bound to the textbox is Decimal.
- I have my business rules set up as Partial Classes in the Dataset.
- I am capturing the ColumnChanged event in the Partial Class for the DataTable in question.
The issues are:
- The ColumnChanged event fires in all cases except when there is a data constraint. For example you enter non-numeric values in the TextBox.
- Once you violate a data constraint you cannot leave the TextBox empty even though the column is nullable.
In the above scenario the error icon appears beside the TextBox with the error "input string was not in a correct format."
There seems to be an internal event triggering before my business rule logic is able to process.Desired functionalty:Bypass this internal event and present my own error message to the user using the business logic coded in the partial class.
I have a dropdown list which extracts data from my SQL database and gives the users two options to choose from (Weekly / Monthly). The database has an ID for each of these. Weekly is set to 1 and Monthly is set to 2. This drop down is linked to a gridview which extracts / displays the data based on the selected item. All of this works perfectly fine. This issue I have is that I want to add some code in my Page_ load event to populate a text box with the selected item. I would also like to set the dropdownlist as default to weekly when a users access thie page. I thought that the two following bits of code would work but I get the message 'Input string was not in a correct format'.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'This works fine
lblTodaysDate.Text = GetDate()
'I thought I could complete an If Statement to get the text box to work.
If DropDownList1.SelectedValue = 1 Then
txtMeeting.Text = "SMC Weekly Meeting"
Else
txtMeeting.Text = "SMC Monthly Meeting"
End If
End Sub
I am new to .net but have read that I might need to convert my int to a string?
I keep getting the following error: "Input String was not in correct format" and it relates to the following line of objRow1 = objDataSet.Tables("tblStudent").Rows.Find(selA) I cannot grasp why this error keeps occuring. I have definately used this format (i.e. datarow = dataset.tables("tablename").rows.find(something)) elsewhere and have had no problems.
What I'm doing is reading the values in a listbox and trying to find their related IDs. The values in the list box are names from one particular table in a database and I need to get their IDs to save to a second table.
[Code]...
I'm wondering in figuring out, how to send emial on click of button in vb.net in defined format with some links.
Currently my status is: I created a dropdown which load the list of some codes from sql.In sql i have created a table which maintains code and emailBody. Now when I Select some code in the dropdown and click on the "button". I wants to retrieve the emailBody associated with the code in the same format which i Have in sql. currently I'm able to retrieve the emialBody but it is sending as paragraph when I check the email. But while bebugging dataset xml view is in correct format.
and also how to add links to the text in sql?
Within a project of mine I have created a group box that I am using to convert an input temperature from Celsius to Fahrenheit with the click of a button. The input is a text box value, manually entered. However, VB is giving me an error when I try to parse the string input of the text box so that I can convert the temperature values. I want the temperature to be converted for any values entered into the input box. Here is the code I am using...
Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
TempC = Double.Parse(Text3.Text)
TempF = Double.Parse(Text4.Text)
[code].....
The error tells me that "the input string was not in a correct format"
The code works when I replace the input strings with an actual string, but again, I want the user to simply type in a value to the temperature box, hit convert, and then receive the conversions.
I have written the following code:
Dim E_ID As Integer
E_ID = Convert.ToInt16(Request.QueryString("ID"))
But when it executes, I always get a FormatException:
error: Input string was not in a correct format.
What could be causing this?i am sending value like this.
Protected Sub lnkPrint_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkPrint.Click
lnkPrint.Attributes.Add("onclick", "return openBadgeReportPage('" + ddEvent.DataValueField + "','" + ddType.DataValueField + "')")
End Sub
End Class
I have a textbox where a user is supposed to enter a date. How can I check whether the entered date is in the correct date format?
Like this: 02/02/2008
not like this 022/22/-1
not like this 2009/02/02
not like this 02/Jun/2015
not like this 02/abc/2010
(I don't want to use DateTimePicker or MonthCalender).
EDIT 1 I tried it like this
Private Sub txtHireDate_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtHireDate.Validated
Dim dateString As String = txtHireDate.Text
Dim formats As String = "MM/dd/yyyy"
[code]....
But its showing some errors?
<body>
<%
Dim EMailFrom As String= "?"
Dim EMailTo As String="?"
Dim EMailSubject As String="?"
Dim EMailBody As String="?"
[Code]...
I have a multi-line textbox and split each of the lines. Now I am trying to use each of these lines so that I can write them to a file and center them. But there is an error that says "Input string was not in a correct format."
Here is my
Dim myParas As Object
Dim Titlelines As Integer
myParas = Split(TextBox4.Text, vbNewLine)
Titlelines = (UBound(myParas) + 1)
[code]....
I am using code something like this:
[code]...
I want it to look like this: "Done in: 02:02" Can't seem to get the format for the seconds correct for some reason. Is there another method I can use to force the seconds to use two placeholders even for seconds 1 through 9?
I am trying to cast a string to decimal and I keep getting the above error. The problem is is there is a value in the text box, it works but if the textbox is empty, it generates this error.[code]...
View 4 RepliesI keep getting the following error: "Input String was not in correct format" and it relates to the following line of code:
objRow1 = objDataSet.Tables("tblStudent").Rows.Find(selA)
I cannot grasp why this error keeps occuring. I have definately used this format (i.e. dataros = dataset.tables("tablename").rows.find(something)) elsewhere and have had no
[code].....
how would I fix the error Input string was not in a correct format error in this function?
Function smallnumber() As Integer
Dim small As Single
Dim smallest As Single
[code].....
do i have to convert it to something else or what?
When I attempt to read my Xml file when using a schema file I get the following error message:
Input string was not in a correct format.
If I delete the schema it read its fine so I am assuming something in schema file isn't matching the incoming data? How can I determine which line is creating the error?
I am building a program for my CINS-113 class where it allows the user to enter a number 1-15 in a masked text box and then hit OK and it will display that number in a ListBox as such:
Say they enter 1...
1 X 1 = 1
1 X 2 = 2
1 X 3 = 3
...
1 X 12 = 12
I have gotten everything to work great, but when you enter anything but numbers 1-15 it properly provides a message popup telling you that your entry is basically not the right value, but then I get a build error that says "Input string was not in correct format" and it highlights my line: "intInput1 = Convert.ToInt32(strInput1)"
[code]...
vb.net
Public Sub PopulateClient()
Dim clientadapter As New MySqlDataAdapter("SELECT clientid, Client_Name FROM client", strConn)
Error I keep getting is "Input string was not in a correct format." It is getting this error because of this:
vb.net
clientID = Int32.Parse(cboClient.ValueMember)
If I don't use that for the PopulateDept() then I get this error "Error1Option Strict On disallows implicit conversions from 'String' to 'Integer'.TaxCert.vb19033TaxCertForm"
