How do I add, for example, all the numbers in the textbox (they are separated by spaces)? I tried a couple of methods but no luck so far. So for example, this is what the user will input in the textbox:
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I am trying to write a console application that adds and undetermined amount of numbers together and then averages them and does some other calculations with them, but I cannot for the life of me figure out how to add many numbers together. I am doing this in a console application and using input boxes and message boxes to Receive and display the data. So the question is, How do I add many numbers together (an undetermined amount, maybe 5 numbers maybe 25 numbers) and then add them.
View 8 Replies[code].....
View 2 Repliesi need to take data input from a textbox such as this
[Code]...
and get it so i push a button and it seperates it out so it adds and looks like this inside a display field
[Code]...
how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
i have a DatagridView, with a Colum " KG".Into the Colum, i place numbers.Now i wants a total of all numbers, place into a TextBox, using a code.
View 15 RepliesI would like to know how I can have an enumeration that has multiple values and can be passed to a function.
Example:
Public
Enum
ActionEnum
NoAction = 0
[code]....
i have one more issues, and hope is the last for now. How can I limit a textboxe's input to only numerical with certain range of values (eg -10 to 10) and with that happening while I type in the values?
View 9 Replieson the form I use one combobox with Data Bound items, Data source, Display member & Value member. Besides this combobox I have textbox with multiline turned ON. My code should write values from specific table in Textbox when I sellect ID on the combobox. Actually this code works but not in a way I want Me.TextBox2.Text = ComboBox2.SelectedValue
I would like to populate texbox from other columns as well. For my app I need one texbox in which I can see five lines of data, Company name, Address line1 & Address line2 & Address line3 & Address line4 . It's important to get data from different columns and each column in a new line.
I just D/L VB express 8, and I'm trying to learn how to use it. what I'm trying to do is write some code that:takes a number into a text box (textbox1.text)do some simple calculations with that number when I press a button (button1)display the results in a second text box 9textbox2.textThe first problem I am having:The numbers are in the "milli" range, meaning to the power of negative three, so 10^-3 = 0.01 I do not want to enter 10^-3 or any other exponent into the textbox, I am simply entering in 10 because all my units will be in milli. I've tried using exponent and scientific notation but it doesn't calculate correctly. I've done a "work around" to get it to do what I want, but there has to be a simpler way to achieve the above results without. for example, the user enters 10 into the textbox, the button multiplies 10^-3 *30, as a crude example, and stroes that value (say, B=10^-3*30) and B is DIM B as Double.
Problem number two:Error checking. I need to validate that only numbers can be entered into the textbox, or else the program will display an error message (messagebox). I can achieve this to some degree with sample code from here and other places, but, some of the code does not take into account that some numbers have decimal places (I have foud code that does, and it does work), but if a users enters, say the letter "E", it crashes the program. If the user enters "10.3Z", it crashes the program. I cannot seem to code for the last case, a mixture of numbers and letters to get an error message box.
I have many textbox controls and they are named as txt1.text, txt2.text, txt4.txt etc.I want to raise the event "Leave" when txt1.text leaves or txt2.text leaves.but with a single handler.
View 2 Repliessearching a database using multiple words from a textbox showing in gridview.
<asp:TextBox ID="TextBox1" runat="server" Width="382px" AutoPostBack="True"></asp:TextBox>
<asp:Button ID="Button1" runat="server" style="height: 26px" Text="Button" />
[Code]....
It works fine, i click button and the gridview shows all the right records. The problem is when i use more then 1 word in textbox. it shows nothing. The record in the database field may have several words, so i need to search using all words in textbox.
How to make validations for textbox allow numbers only or textbox allow letters only?
View 14 Replieshow can i make it so my textbox can only have numbers in it
View 2 RepliesI have a problem whereby I have 10 text boxes and I don't like to use the same code for each and every text box that allows users to input only numbers, which could be very long and messy coding.
Is there any shortcut that I can set all (not just one) text boxes to allowing user to input only numbers?
I'm designing a program to display 6 random numbers using labels. I know I'll need an array to accomplish this. I am trying to put the integers into the array and displaying them on 6 different labels
View 3 RepliesI know how to limit a single text box to numbers only but can I use the same sub for all my text boxes or do I have to have a sub for each whith the same code? I think I just need the proper syntax. Below is what I have that works for one on my text boxes:
Private Sub txtPitchRiseTC_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtPitchRiseTC.KeyPress
' allow only numbers and the Backspace key
[Code]......
Im just trying to get a simple multi line label box counting numbers using vbCrLf.
Dim startNumber As Integer
For startNumber = 1 To 4
lblCount.text = "Number = " & startNumber & vbCrLf
Next startNumber
I just want something to display like this in a multi line label, not a textbox:
Number = 1
Number = 2
Number = 3
Number = 4
But... I keep getting something like:
Number = 4
I already turned auto size off and expanded the label.
I have attached the form in initial state. What you don't see in the initial state is 10 hidden labels. I want the loop(which I am calling as a function??) to compute the numbers and display in the labels. Example, if I input 1 for the first term, 3 for the second term and 4 for the total terms, the first 4 labels should become visible and have in them one solution each:
1 - 1
2 - 3
3 - 4
4 - 7
Am I way off with what I want to do? Cannot use arrays, must be a loop.This is the compute button:
Private Sub BtnComp_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles BtnComp.Click
Try
[code]....
is there a way to allow only numbers in a textbox?
View 6 RepliesI have textbox and it has keypress event , I want users to allow only numbers
View 19 RepliesI have a textbox where the user inputs the employee number, but it must only accept numbers.
I have coded some lines in the textbox's TextChanged event and almost have it. but when I adjust it to eliminate other characters it triggers itself (recursive). that is not a big problem since the second time does nothing but I dont like the unprofessional way its handled.
But the real problem is that I cant get it to stay "blank" when the user erases all my code always puts "0" on the texbox.
Another thing is that when a non-numeric key is pressed, after the code dismissis it, the cursor goes to the start of the textbox messing up the input.
I've made a textbox which MUST contain 4 numbers. If there are 3 numbers (or less) you'll get an error or something. I already changed the tabindex to 4.
View 3 RepliesI want to make a routine named "NumberOnly Private Sub TextBox4_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox4.KeyPressNumbersonlyEnd subAll textboxes must accept numbers data on which I call this routine
View 5 RepliesI am doing a project on abstract the numbers that i get from the datagridview to append it on the other textbox. Ok I elaborate more. I have 2 form which is form1 and form2. For the form1, the view is 2 textbox and a 'To' button. when click on the 'To' button, it is direct to form2 which is the datagridview. After selecting the selected numbers, it will display the numbers on the form1 of the one of the textbox. but the problem is I want to abstract one by one of the numbers and append it on the other textbox of the form1.
View 9 RepliesI am doing a project on abstract the numbers that i get from the datagridview to append it on the other textbox. Ok I elaborate more. I have 2 form which is form1 and form2. For the form1, the view is 2 textbox and a 'To' button. when click on the 'To' button, it is direct to form2 which is the datagridview. After selecting the selected numbers, it will display the numbers on the form1 of the one of the textbox. but the problem is I want to abstract one by one of the numbers and append it on the other textbox of the form1.
View 1 Repliesok the problem is that when a button is click I want it to add 1 (+1) to a textbox. This process will keep on going on till I tell it not to...How would I just keep a running total of whats happening in the textbox...What I mean to say is that if I pressed the button 10 times, instead of it showing:111111111 I want it to automatically add the numbers up to show 10 instead.
View 1 RepliesHow can I allow only letters A-Z (both lowercase and capital) and numbers 0-9 to be entered into a TextBox control? Also spaces are not allowed either.Goldfish64
View 2 RepliesI recently have had lots of problems getting a text box to display only numbers or special characters and or letters only. Much research on past posts just compounded the problem as the code is either for previous versions or other language. So I thought I would post a bit of code that works great with VB 2010
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
e.Handled = True
[code].....
You Know Your Addicted To Computers When - Your main computer is a 7 terabyte, Core2Quad 3 Ghz +, with 4 or more gigs ram, over 200 programs installed, and you would rather sit with it programming than go to the movies!
I have a problem in putting the telephone number using the datagridview. I have build 2 forms which is form1 and form2. In the form1 there are 2 textbox and a 'To' button whereas in the form2, there is a datagridview which display the telephones numbers and a button. When run the application, the user need to get the telephone numbers from the database so that is why when clicked on the 'To' button, it will go to the form2 which is the datagridview. After selecting the telephone numbers and click on the button at the form2, the telephone numbers will be display at the form1 first textbox. But the problem is that, I grab the telephone number which has been display in the form1 first textbox to the second textbox in the form1. I could not get the telephone numbers.
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