As the title says,I want to just have only numberic/decimal values accounted for, if it is negative or if anything else is entered into the textbox, how do I have a message display for that?
View 3 Replies
i wanted to display the values of my code on a message box in multiple lines..that is,, i have x and y and z values that i have calculated and want them to be on a message box
View 4 RepliesI know it's possible in asp.net to create a custom error page in a web app, by putting the following line in the web.config: <customErrors mode="RemoteOnly" defaultRedirect="frmErrorPage.aspx" />
I have had to do this for my web app, since it is clearly much tidier than letting the program bomb out with it's ugly default error page. My custom error page just has the customer's logo and a brief message saying "Error has occurred. Please return to homepage"The trouble now is that I have no way of knowing what caused the error, when a customer reports it.
Is there a way to make the actual error message appear on this custom error page too?
Every time vs 2008 loads a projects this error message always display? What will be the effect of this in my development?Im running on Windows 7, 64bit..
View 4 RepliesI have been able to connect to the string and the database from where I need to check the username, but in my page it is not checking whether the username is correct or not.
what I am doing wrong and what I need to change to make this work, I have been on this for literally a week and still no success.[code]...
I have a aspx page with several input fields(couple of int's and strings) and 3rd party gridview. Data is validated, and stored procedure is called from code behind to save data in DB. Gridview has capability to display error box to user which can be called from code behind. So when I catch exception I give it my error message(error message is something like:"Data can't be saved to database. Error:" & ex.message and call function that displays errorbox.
[Code]...
I've added a database to my application with 2 fields:"ip" address and "started" that holds the number the application was started from that specific IP.I want to upload the database to my site hosted at google.sites. When the program is started it should make a connection with the following cases:
1-no connection with the database (possible no internet available) - it should display an error message
2-there is connection, the IP is not stored on the database, it addes the IP to the database and the field "started" with the value 1
3-there is connection, the IP is stored on the database, it increments the field "started" by 1
I am working on a program where a user either enters "small" or "large" and then the number of toppings. Once the user has done that my program outputs the total cost of a pizza based on user input. If they enter something else besides a number in the txtNumberOfToppings I am trying to show they message box that says "Re-Enter a valid number!" Likewise I am trying to display the error message "Re-enter a number that is 0 or greater!" If they enter a negative number into the textbox. However they do not display when I do enter invalid input.
My Code
Author: Adam Fandre
Description: User enters the words "SMALL" or "LARGE" and then the number of toppings
And program then displays cost based on user input.
Comments: Finished
Option Explicit On
Option Strict On
[Code] .....
1.In a bank fixed deposit rates are given below.
PeriodRate
6 months8%
12 months10%
24 months12%
a.Design Suitable user interface in windows application in VB.NET to calculate interest at maturity. Use Radio buttons for period.
b.Calculate interest at maturity.
c.Calculate total amount at maturity
d.Add a clear button to clear the exiting contents
e.Display an error message when deposited amount is blank
I have a function that allows a user to enter numeric vallues and also a period for the decimal points but I also want to allow for users to enter the minus sign to allow users to enter negative values . How would I go about it.
Public Function SingleDecimal(ByVal sender As System.Object, ByVal eChar As Char) As Boolean
Dim chkstr As String = "0123456789."
[code]....
I am trying to make a sample Master-Detail relation ship database example in vb.net. When I add MasterTable a new row via bindingnavigator and save via savebutton autoincrement field goes -1 -2... negative values hence cannot get correct ID numbes saved in table rows till I close open sample application. How can I see correct autoincrement ID numbers in gridview after savebutton ?.Just ID numbers saved to mdb.but cannot see them i gridview and displaying negative weird numbers. This problem is important because without getting ID numbers cannot bind Detail table rows to newly recorded master table rows.
View 3 RepliesI am trying to create an input validation for my program to prevent the user from entering negative values. I've been using:
If (decLabor < 0) Or (decPartss < 0) Then
MessageBox.Show("Input prices for parts and labor must be positive")
I have a problem when i am passing negative value to "AddMinutes" function.The problem occurring when i subtract a value from the "00:xx:xx".[code]When it is trying to subtract, it is throwing the "Un-representable DateTime" error.How do I do the subtraction of minutes in this scanerio?
View 3 RepliesI have a program that calculates values of a function, say f, with respect to another variable, say L.I have an array of f(L), for L going from 0 to a given integer value, say t-1 in steps of a value i.I need to export the values of this function to an Excel spreadsheet in a given column, and to do this, I would like to re-index the function f, since i is much less than one, and so the following loop I use (see below) won't work:
For L = 0 To t - 1 Step i
Sheet.Cells(L, 1) = L
Sheet.Cells(L + 1, 2) = f(L)
Next L
The first code in the loop will essentially load the values of L itself, at which the function is defined and calculated, and the next line will load the values of the function at each value of L.Since the indexes of the row and columns in an excel spreadsheet only go in steps of 1, I need to convert the indexes of the function, or the indexes to which L is loaded, so that it would be scaled so that the first entry corresponds to L=0, but the next is L=i, but loaded into row number 2, etc.
I have written a program that generates and prints 10 random integers from -10 to 10, my problem is that I am returning both negative and positive numbers, aligned right with a pad of 2, but the negative is on the right hand side of my number instead of the left. here is my code, all work but I need to align the numbers and have the correct notation of negative.
[Code]...
I'm creating an emulator for a device to simulate wave forms. My challenge is that when I try to convert the output of the following code, I can't convert the Math.Sin's double output into byte values that lend themselves to the byte array format required by an existing graphing control as listed at bottom below. I''m not sure how to handle this when the sin function creates negative values but the byte values will need to be positive and basically 'shifted up' so that anything over 127 is negative. (0 - 255) unsigned. BitConverter.GetBytes has been suggested but THIS is the result of that attempt.
[Code]....
I have a button that is supposed to display a form:
Code:
Private Sub btnEditAssociate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEditAssociate.Click
frmEditAssociate.ShowDialog()
End Sub
Code:An error occurred creating the form. The error is : index 0 is either negative or above rows count.There is a database call on the form load property of that form, so the problem could be with that, but the when I step into the showdialog() call it produces that error on the show dialog line, so I can never see what is going wrong.
how to create an error message by message box to tell the user to enter a number only if they key in a character value?
I MEAN AFTER THEY PRESS THE CALCULATE BUTTON
Private Sub btnCalcFat_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalcFat.Click
Dim intFat As Integer
intFat = Integer.Parse(txtFat.Text)
lblResultDisplay.Text = txtFat.Text * 9
End Sub
My text box is call txtFat
I have a problem in timers, I want to display 2 forms each one after 3 and 5, how to do that? I mean when the first form appears, after 3 seconds another one will appear, then after 5 seconds the second will appear. I have a code where someone gave me here but its for message box only, thus I modify it to put a form still does not work. Here the code I put in the timer below:
Private Sub frmblabla_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
tmrnote.Start()
Private Sub tmrnote_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrnote.Tick[code]....
I still have problem when the message box stops, it displays all the forms together. All I want is when the message box stops, then it display the first form then stop to display the second then stop to display the last. The first form must stay for 3 seconds on the screen, then after 3 seconds the second appears then after 5 seconds the last appears.
How would i make this code below work together i keep getting an error
Option Strict On
Public Class Form1
Dim Array(24) As Integer
Dim J As Integer = 0
[code]....
The error is get is at :
If MyArray(J) > Largest Then Error : Index was out of range. Must be non-negative and less than the size of the collection.
I am getting the error Parser Error Message: The server tag is not well formed. on the code line below:
<asp:HyperLink ID="imgFileType" ImageUrl="images/Icon_Pdf.gif" NavigateUrl='<%#"javascript:ViewFile('erg_", Eval("DocumentName") %>' runat="server"></asp:HyperLink>
I need the url link to be parsed as:
javascript:ViewFile('erg_Invoice_3200_QRG_Restaurant.pdf');
What am I missing in the syntax?
My text file lines look like this
------------------------------------------------------------------------------
AGILENT 3070 FIXTURE WIRING REPORT Sat Mar 07, 2009 06:43:05 PM
/var/hp3070/boards/Celestica/wbf303/fixture/wires
------------------------------------------------------------------------------
Fixture Type : Agilent SimPlate Express
[code]....
but this line Dim Iend As Integer = line.IndexOf(")", Istart) give me error
"Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: startIndex"
I get an error on the last line of sub where I am trying to assign a combobox to a column which is a textbox.error:Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index[code]....
View 3 RepliesI have a function that allows a user to enter numeric vallues and also a period for the decimal points but I also want to allow for users to enter the minus sign to allow users to enter negative values . How would I go about it.
Public Function SingleDecimal(ByVal sender As System.Object, ByVal eChar As Char) As Boolean
Dim chkstr As String = "0123456789."
If chkstr.IndexOf(eChar) > -1 OrElse eChar = vbBack Then
If eChar = "." Then
[Code]...
I tried coding for an application that will display the positive integers, negative integers and zero entered in a inputBox. for some reason it keeps crashing down.here is my code. paging all visual basic professionals. [code]
View 6 RepliesI'm back again with the same code however I have tried everything and I am still stuck. The message box works, and all of the values are correct but the last value. I would rather not change the message box code, but maybe just the last line where the 'Total pay:' is. As I said, all of the values are correct in the message box but the Basic hours pay will not add the Overtime hours pay for some reason.
Dim TotalPayWithoutOvertime As Double
Dim HoursWorked As Double
Dim DoubleRate As Double
[Code].....
I have a button that is supposed to display a form:
[Code]...
Getting error filling grid view from reading through data table:
Dim myDataTable As DataTable = myDataSet.Tables("SunTrust")
Dim myRow As DataRow
Dim i As Integer = 1
Try
[code]....
Error:Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
I am suing VB2008 express edition. I 'sometimes' get the error 'ArgumentOutOfRangeException was unhandled' and 'index was out of range. must be non-negative and less than the size of the collection. Parameter name: index'.I tried to solve this problem but I could not! The below code is a part of a long code.
For iteration = 1 To 1000
Dim InBetweenPoints As New List(Of PointF)
Dim SortedInBetweenPoints As New List(Of PointF)[code]...
What im trying to do is send vars to a flash file.The following is my code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim oTitle As New ArrayList
Dim oSub As New ArrayList
Dim oRate As New ArrayList
[code]....
What I'm expecting the output to display is something like "t1=value&s1=value&r1=rate&t2=value&s2=value&r2=rat&t3=value&s3=value&r3=rat" But... i keep getting this exception: index was out of range. must be non negative and less than the size of the collection. Parameter name: INDEX.
