Messagebox : Enter A Number Between 1 And 100?
Oct 11, 2009
Heres my code for my button:
Private Sub btnTotavrg_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTotavrg.Click
'Calculate the average and total of the entered marks
Dim num1 As Integer
Dim num2 As Integer
[code]....
How do I make it that when a user dosent enter a number between 1 and 100 in the textboxes; an OK messagebox comes up telling them to?
1. I want to have the messagebox come up after the button is clicked and not under a leave event.
2. And its also important to make sure that if any non-number is entered; it wont crash.
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Jan 8, 2012
how do i count the number of rows that are affected when I updated a table, and display the number of affected rows in a message box ??
here is my code for updating the table ...
For Each row As DataGridViewRow In DataGridView1.Rows
req = row.Cells(Column1.Name).Value
If row.Cells("Column1").Value = True Then
[Code].....
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Jun 14, 2009
I have 1 messagebox which has 2 buttons (MessageBoxButtons.YesNo) usually we can change the focus of the button(yes and No) with tab key and we also can trigger the button with enter key.. but sometimes, i can't change the focus with tab key and can't trigger the button with enter key.i think the messagebox lost its focus..i have to click the form, so the messagebox will regain its focus how to set focus for messagebox?
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Oct 4, 2009
I am supposed to create a program in my VB.net class to do the following:
1. Prompt the user to enter the beginning number and the ending number.
2. Find the sum of the even numbers between these two values, inclusive.
[Code]...
We are currently using for next statements in the class. I know how to prompt for and utilize the numbers that are input etc. My problem is the EVEN numbers part. I obviously have to determine if the number is even and then use a step value of 2 from there. But not sure how to determine if number is even or odd (guessing to use mod, but totally lost).
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Mar 2, 2011
I am wounder if anyone might have a web site or no where I can find the information so I understand how to prompt the user to enter the beginning number and the ending number. And then to find the sum of the even number. Now does anyone know what a name convention is ? I have tried to look it up on the forums but cant find nothing on it.
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Sep 26, 2009
How do I make it that the user must enter a number between 1 and 100? And If they dont they get an OK messagebox stating that they must do.I imagine it'll be something like this:
If TextBox1.Text = "" Then
MessageBox.Show("You must enter a value between 1 and 100", "Name Entry Error", _
MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
End If
But Im not sure whats suppose to go inbetween the speech marks.
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Mar 28, 2011
From my login form, and when a correct Username and Password has been succesfull and I get a messageBox saying "welcome to your System" (Picture Below) and when I press the OK button in that MessageBox, I want to open Form3.do I add code to the Underlined code (below Picture), or Do I write a completley different code after the messageBox code.
[Code]...
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Nov 30, 2010
It seems like I'm only able to enter a certain number of chars into a textbox.Like if I have a list from 1 to 10000.When I paste it in a textbox it ends like this:
5639
5640
5641
[code]....
Why cant I add everything to the textbox?
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Nov 16, 2011
Basicly my instructor said that we have to make a program that will count how many times we enter a number into an inputbox, he also said we had to use a while loop. [code]
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Mar 31, 2011
With this code, I am trying to enter a number in TxtBox Class A, B, and C. When I place a number in either text box, it will multiply the following text boxes by either 15, 21, and 9, add the total and place it in the the total text box. When I run the code I get this error message "Conversion from string "" to type 'Decimal' is not valid."
Dim decClassA As Decimal
Dim decClassB As Decimal
Dim decClassC As Decimal
Dim decClassAR As Decimal
Dim decClassBR As Decimal
[Code] .....
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Feb 7, 2009
I am trying to release my program now and I have a quick (hopefully quick) question concerning serial numbers. I want to be able to store the trial serial number so if the user uninstalls and reinstalls they won't get another evaluation period free of charge. My concern is that some crafty person will simply move the database files in and out of those installs and keep going indefinately. Although I have some protections built into the database itself in case the program runs out, I just want one extra layer of protection. Is there a way to store the serial number in the registry when entered and check for that entry whenever the program is installed using Windows Installer 3.1?
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Jan 27, 2012
I want to be able to enter (type in) data into a combobox as well as picking from the list. In earlier VB there was AfterUpdate event so that I could enter in the data I wanted. Now I have tried Keypress, Enter, and others and they all want just one character or number. If I try to enter a two-digit number it doesn't wait.
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Jan 1, 2011
So I would like an email program that within the code already has the from email adress, gmail. I would like it to let you enter the number of emails to send to the address that you enter, not the one in the code. Also I would like it to be able to enter the message.
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Nov 22, 2010
I am doing a program for travel reservation and need to know how to let the customer enter their passport number into a textbox. Its is 8 characters long and the first 7 characters are numbers and the 8th is a letter.
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Oct 15, 2011
how can i limit a user to enter 10 digit no like telephone no in textbox without using regular expressions?
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Oct 9, 2011
how can i limit a user to enter just 10 digit number (minimum 8 but not more than that 10 in any case) in a textbox(like telephone no)?
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Apr 28, 2012
So I wanted to make a program for math where you enter a number into a box. Then you click enter. The program has numbers 1-12 next to a check box. If you click enter it divides your number by the numbers 1-12. Let's say you put 100 in that box. Then you clicked enter. The check box next to ten would be checked, 4, 2, and 5 would all be checked because those numbers evenly go into 100. How can I have the vb check to see if the sum is a whole number?
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Mar 12, 2012
If IsNumeric(Hundreds.Text) Then
HundredsTotal.Text = (CDec(Hundreds.Text) * 100).ToString("##,##0.00")
DollarAmtVar = CDec(HundredsTotal.Text)
[CODE]..
The above code is from a small program I have written. This test is done on about 30 textboxes I am using for the user to enter number.
The following is the sub routine that is called.
Sub ShowError()
MessageBox.Show(BoxName & " must be a number.")
End Sub
Here is what I want to do but it won't work.
BoxName.Select()
This is so I can put the focus on the different boxes that might contain an error.
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Feb 6, 2009
This is what I would like to achieve:To create a custom messagebox, with varying number of buttons with custom .Text descriptions, and other features. I intended to have a property array that would be redim-ed and have values (.Text values) set by the calling class:
[code]...
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Jun 21, 2010
i want to know how to assign specific number of digits enter in a textbox..
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Jul 15, 2009
In my datagriedview i have 5 column called T,C,F,S and H.I want to specify in column C that the user must enter 3 digit. For column H the maximun value should be 2000 so user should not enter more than 2000.how i can specify this condition for my datagriedview column?
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Jun 26, 2010
I want to open a txt file and write into it numbers from 1 to 100 and put between every number enter.
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Jun 10, 2011
program that allows the user to enter a month and a number of years. (e.g March and 10 years) The program then displays all the months of the year from the entered month in a loop that runs as many times as the number of years.(e.g March April May.....December January February March....)
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Aug 26, 2009
i have a sql table which has 2 fields number & name
1 abc
2 xyz
Situation is that the app finds out max of number and increments it by 1 to get new number.The problem is when two users enter some record sometimes two records get saved on same number.
[Code]...
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Mar 21, 2011
I have two masked text boxes that holds Phone Numbers and Zip Codes.Since they are Masked text boxes and are set not to allow characters or letters, the user must enter numbers.However, how do I add a message telling the user to enter number and zip code since there is no prompt?I don't need to validate the numbers just to add an error message if it's left empty.
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Oct 5, 2011
I need to create a small application that will force a user to enter an even number but i MUST use a loop. Here's what i've come up with:
Quote:
Dim bynombrepair As Byte
bynombrepair = InputBox("Entrez un nombre pair")
If bynombrepair Mod 2 = 0 Then
[Code]....
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Apr 16, 2012
i'm having a bit of a hard time on setting up the calculations.There are three seating categories at a stadium. For a baseball game, Class A seats cost $15, Class B seats cost $12, and Class C seats cost $9. Create an application that allows the user to enter the number of tickets sold for each class and the total revenue.
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Feb 7, 2011
how can i code a simple program to generate the maximum number i enter/type within 3 or more numbers using math.max. for example, if i enter 25, 60, 45 how can i use math.max to calculate the largest value out of the 3 numbers?
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Jan 28, 2012
Assuming that I have a Windows Forms textbox and want to reduce the maximum amount of characters that can be allowed in via user entry, how would I do that?
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Nov 20, 2011
Im trying to make a Console Project that when you enter a number it changes the color of the text and its not working
[Code]...
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