Check If Input To Group Number And Number Of Units Are Correct Input By Making Error Handling Exceptions
Sep 23, 2010
Part of my assignment is to check if input to Group Number and Number of Units are correct input by making error handling exceptions...
I have to check the following:
a) group number is neither 501 nor 062
b) number of units are NOT numbers
c) number of units is NOT a positive number
So my first question is, am I checking correctly? 2nd question is, How do I make sure my Exceptions will pertain to their correct respective things (a, b, and c.. above)?
[Code]...
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Feb 2, 2012
Vb is not my language of choice , but I have to do this for school and I'm not having a very easy time with VB's documentation.I'm just creating a very simple console application that accepts user input: degrees in Celsius, and converts it into Fahrenheit. I want to make sure that if the user just hits enter without entering the degrees in Celsius, then an if else statement will catch and write to enter Celsius again.Here's what I've tried:
[Code]...
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Mar 7, 2012
I have a txtbox(for barcode).. if i input a item number in that txtbox and if that number will match in your database, the other information(shall we say, product type, item ID, etc..) will display in my other txtboxes..
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I am looping through the rows of a DataRowCollection and assigning the fields of each row to a variable. I always get "Input string was not in a correct format" no matter how I cast this. I just need gapCd to contain 0 if the field is null or the value otherwise. It seems the IsDbNull is not returning true properly. I've also tried DbNull.Value comparisons with no l
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Feb 15, 2012
I am trying to draw textboxes when the user enters the amount of textboxes to be drawn on one form and the textboxes get displayed on the another form. I have found these codes online but it works with inbuilt codes I guess. That is, the number is already hard coded in the form.
[Code]...
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Dec 15, 2011
how to comparing the input of the textbox with respect to the given text and the number of error in typed textbox?
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Sep 5, 2010
I have an existing database that I want to add a number to that the user inputs. So lets say that in the database there is 4 carrots, and the user on the addinventoryform inputs 3 carrots and pushes a button. Now I want that number to be added to the database number so in the database there would now be seven carrots. I am using an oledb connection and cannot figure this out.
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Apr 18, 2009
I have created a basic query generator which allows a user to select the Select, WHERE and criteria attributes using a number of checkboxes.However i have got stuck. In the results form i have the following code
Private Sub DisplayRecord()
RichTextBox1.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(0)
RichTextBox2.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(1)
RichTextBox3.Text = ds.Tables("newResults").Rows(intCurrentRecord).Item(2)
[code]....
The program keeps on crashing if the user does not select the corresponding amount of display records from above for the amount of attributes they want for the SELECT part of the query in the intreface in form 1.
How would i go about making something where the number of SELECT attributes selected which are listed in a string create the correct number of textbox fields in the results form (form2)
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Feb 28, 2010
Code.
Public Function comb1(ByVal SName As String) As DataTable
Dim dt As New DataTable
cmd = New SqlCommand("Select Distinct RName from tb_RS_New", con)
[Code]....
While loading the page, the error was thrown as "input array is longer than the number of columns in this table"
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Jan 31, 2011
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
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Jun 26, 2011
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]....
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Oct 20, 2009
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]...
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Feb 12, 2009
I 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].....
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Oct 5, 2011
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?
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Feb 12, 2011
I'm using Try/Catch blocks for a program calculating payroll and commission. I've dim'd my variables, and I've parsed them inside my Try/Catch blocks. It appears as if my Try/Catch blocks have been coded correctly. However when in run-time, my format exceptions will show regardless if I provided a correct input.[code]Is there an issue with my programming? Or could there be a property I'm over-looking for my text boxes? I'm stuck.
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Feb 20, 2012
Experiencing error handling although no input errors?
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Apr 8, 2009
I have a user that is receiving the following error: "Input string was not in the correct format"So I looked into the code and I can see why he is getting the error. The code is trying to execute this line:
_MyObject.LineBreaks = "0"
And the property looks like this:
Public Property LineBreaks() As Integer
Get
Return _MyLineBreaks
[code]....
Now, I immediately see that this old code is trying to set a string into an Integer and the old programmer was not using Option Strict, so he didn't notice this, BUT the problem has only happened one 1 user's PC. Running from the IDE works fine as well as installing the application other PCs. The code is executed every time the application runs, but yet only one person has reported the issue.Why would one PC baulk at this, but not the VS IDE or any other PC so far? Is there some system setting that determines how type conversion is handled? I need to get this user up and running.
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Nov 25, 2009
The system we have in place at work for call centre agents to input telephone numbers doesn't validate their input, so, in a lot of cases, we have junk data being entered (0000000000 as a phone number generally). I've been taked with fixing this, but I'm not sure how to stop the agents entering junk like this.
[Code]...
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Feb 15, 2011
I was about to create a program about CPU Scheduling (SJF Nonpreemptive), Now, I want to ask the user to input the no. of processes ,then based from the user's input I would display exact no. of text boxes where the user could enter the value for each process then store it in an array. But I don't know how to code the text box., I'm new to VB.net and I'm used to it's 'drag and drop' nature. I just want to know how the code to output this text boxes. and is it possible to have an array of text boxes?
BtW I'm thinking of using 2 forms here
Form 1 for the USER INPUT OF THE NO. OF PROCESSES
Form 2 for the output of TEXT BOXES
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Jun 29, 2010
I'm attempting to learn VB in college. My first project is to create a program in Small Basic and then write it in Visual Basic. I'm looking for the equivalent of TextWindow.ReadNumber() from Small Basic in Visual Basic. I want to force the user to input a number not letters. I'm writing this program for the Console. Is this possible? During my testing I entered a word instead of numbers and the program crashed.
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Mar 9, 2009
I am new to visual basic. Below is my
Private Sub todayMonth_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles todayMonth.Validating
Dim tb As TextBox = DirectCast(sender, TextBox)
If Convert.ToInt32(tb.Text) >= 1 And Convert.ToInt32(tb.Text) <= 12 Then
tb.Tag = True
[Code] .....
Actually, I wanted to validate the todayMonth textbox just to input number between 1 to 12. The problem comes out when I do this procedure : Lets say I input an interger 11 and it passes the validation and proceed to another textbox. Then I click back to the todayMonth textbox, it shows this error :
"Conversion from string "" to type 'Integer' is not valid."
I don't know why my value in the textbox is "null" or empty . I still saw the value 11 on the textbox.
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I have a homework assignment due for Rainfall Statistic and I started the program by dimming the month name and integer. I know how to get the program to input the number of rainfall for each month, but I dont know where to go from there. I'm new with this IT class and i'm just confused on how to do Arrays.
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I'm doing a school project with arrays and I want it so that I input a part number and it outputs a image, price, and name for the part. I need to accomplish this using the array. We've only ever done arrays where you input a part number and one thing comes back out, not multiple.
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Feb 25, 2009
how to validate 4 textboxes so that only numbers 1 to 4 can be entered but no number can be repeated.i already have code but it only validates some of the boxes and allows numbers to be repeated in other
Public Class frmGrid
Private Grid() As Short
Private Const intDimension As Short = 3
[Code]....
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Feb 20, 2009
When I try to communicate with my web service I get this error server was unable to process request. ---> Input array is longer than the number of columns in this table. [code]
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Mar 16, 2010
input = "my mother is a great lady" output = A -3, B - 0, C - 0, D - 1, E - 2
I wanted to count the number of times letter A - E is in the input string.
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Oct 20, 2009
This is my code, and when I run it, it says type mismatch, and when I try to debug it, it highlights this line "If strVowel = Chr(65) Or Chr(101) Or Chr(105) Or Chr(111) Or Chr(117) Then"
Dim intX As Integer
Dim intY As Integer
Dim strVowel As String
Dim strInput As String
Private Sub cmdCount_Click()
[Code] ....
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Aug 19, 2009
How can input number to database where my field in database data type money.[code]...
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I want to make an button that runs an action with the frequency from an number input in Visual Basic .NET . How do I do it? Could someone point me out the syntax of such an action?and all that I want to do is use an number from "NumericUpDown" to give a button how many times the action the button has to do it.
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