Adding Specific Numbers From TextBox?
Jun 3, 2011
I'm trying to add certain numbers together from a textbox full of numbers from 1 to 10. This is my
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub[code]....
When the button is clicked, it gathers the list of numbers from the test.txt file and displays it in the textbox. Now what I want to do is make a label so that after it streams the data and displays it in it's multi-line text box, is for every 10 and 1 displayed on one line, it will subtract 1 from the number in the label. For every 2,3,4,5,6 I want it to add 1. For every 7,8,9 it will not add anything.For those who can tell I'm a blackjack fan and I was curious on how to keep a running count in a label from a multi line list of numbers.
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Jun 21, 2010
ok 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.
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Apr 4, 2012
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?
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Jul 30, 2009
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.
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Oct 16, 2011
I didi this code to take the number only between 7 to 1 but didin't succeed
What is the error
code:
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May 19, 2010
From within Excel, I want to import data from Access. This is simple enough using Microsoft Query. What is not so simple, at least to me, is how to get the SUM of numbers in a specific field in a specific table in Access. I do not need to import every number in the field only the SUM of the field. I need this 'total figure' to be placed in a cell in an Excel spreadsheet.
The data is listed in the Access table in this order: (there are others but these are the three I am interested in)
TimeStamp, Terminal, TransActionTotal
Simplistically, there are three cells (A2, B2, C2) on on the spreadsheet (one for each terminal). The first should show a total for the day for Terminal 1, the second for Terminal 2 and the third for Terminal 3. Is there a way to get Excel to read the data in the table, add up the appropriate fields by date and then write this total in the appropriate cell? If it makes it any easier, the date is recorded in another cell on the spreadsheet (let's say E1).
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May 21, 2009
I'm trying to transfer only the numbers after the £ Character from Textbox1 into Textbox2. If textbox1 contains numbers before the £ character then it just transfers the first numbers before the £ character which is not required.[code]
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Oct 3, 2009
Trying to create a form where user enters a lower bound, upper bound, and an amount of random numbers to generate (that are between the lower and upper)
I was able to get it to generate random numbers but only 1 per a click of the calculate button...I would like user to be able to click button and it to generate and display all the numbers on seperate numbers all at once[code]...
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May 27, 2010
how to loop an SWF file using specific frame numbers. I don't want the SWF file to play thoroughly. I know that frame 1 in Flash is 0 in VB, frame 2 in Flash is 1 in VB, etc.
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Feb 17, 2012
I have a datagridview named Partcotdatagridview. In this datagridview, I have two columns. The first column has a combo box with some names in the data source such as John, David, Alex. The second column is designated for amounts. Each person will have different entries in the datagrid I will select a name and enter an amount for that person. I would like to display the total for each person in 3 different labels in a different form.
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Jun 27, 2011
i have the following piece of code: txtGrandTotal.Text = Val(textbox1.Text) + Val(textbox2.Text) + Val(textbox3.Text) If the numbers entered into textboxes1,2 and 3 are positive integers it all works fine, but if for example the following happens i get unexpected results textbox1 has the number 3, textbox2 has -1 and textbox3 has 6. I expect the result to be 8 (3-1=2 + 6) = 8 Instead I get 14. I understand the concept of precedent but how do I set it if I don't know if the number entered into textbox is positive or negative?
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Oct 30, 2009
I have about 250 numbers in a list box and how can i add them all together and make it appear in MsgBox.
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Apr 5, 2009
I am currently taking a introductory level class to vb.net. For the assignment it asks to create two functions. One function should create a random number within a given range. I have completed that part. What I am having trouble with is the second function. It wants the next function to use the previous function three times so that it displays 3 separate random numbers within a given range and display it in a D2 string format.
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Sep 9, 2010
How to make validations for textbox allow numbers only or textbox allow letters only?
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Dec 16, 2009
I'm making a program as part of a college assignment that requires my to add up the contents of an array. Now the array has 20 places, and the only method I know of atm is:a + b + c + d + e etc...They are all different numbers so I can't just do a * 20, I need a more code efficient way of adding all these numbers up, is this possible?
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Jul 11, 2009
I have a text file (*.txt) with a name in each line, like this:
Joe
Dane
Lisa
Kelly
Now I want each name added with a number from 1 to 99.
Like this:
Joe0
Joe1
Joe2
[code]....
I have folowing code:
For n As Integer = 0 To (numbernames) - 1
strContents = objReader.ReadLine()
For i As Integer = 0 To 100 - 1
[code]....
With this code all happens ok and a new text file is created with the desired name-list with added numbers.The only problem is that the last name doesn't get a number added from 0 till 99 but for example 0 till 17.
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Jan 10, 2010
I am trying to add up numbers in a listbox.I know how to add them up and make them display on a messagebox but what I cant do is add the numbers in one listbox and then add the numbers in another listbox and subtract the total of the numbers from 2nd listbox from the total of the 1st BUT instead of displaying them on a message box how would I output those results into a label?This is the code I have for outputting the totals of a listbox onto a message box:
------------
Dim intTotal As Integer = 0 'Running
Dim intX As Integer = 0 ' Index Position
For intX = 0 To lstDebitsBalance.Items.Count - 1
[code]....
btw the name of the second listbox I want to sum up is lstCreditsBalance
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Oct 28, 2010
how to get running total(adding numbers).
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Nov 30, 2010
how to add together integers from the end of a list array based on certain criteria. example: a list of students assignments and grades, and im trying to add all of the grades from a certain student up based on the student id from the user.
the student table looks like this:
111 H1 09/12/2010 17
111 P1 09/14/2010 42
111 H2 10/02/2010 18
[Code].....
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Apr 20, 2010
I have a Repeater... And it has a Weight field. the weight it displayed in a textbox. I have this piece of code:
lblTotalWeightCalc.Text += NewDV.Item(i)("Weight")
This will get the Weight and display it in my label. But when I select more than one item (which will have two weights) it will show: For Example:
Item #1 : Weight = 20
Item #2: Weight= 50
The total Weight= 2050 (it doesn't add them together) I need them to be added together....
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Oct 18, 2011
CODE:
I have tried a million times to gt this funtion working and i cant.
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Apr 5, 2010
I have an issue in VB6 that is giving me a major headache. When using a variable defined as a single data type, VB6 will add random numbers to the number i assign to it.
For instance I have a single variable that is manually set to 0.3. Then i create another single variable and set it to 0.25. I have the program add 0.01 to the second variable until it equals the first. But they never equal. I couldn't figure out why when both were showing they equaled 0.3.
[Code]...
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Dec 29, 2010
I found this from a Google search and I need the VB.NET equivalent to Martin Liss' code
Dim lngIndex As Long
Dim lngTot As Long
For lngIndex = 1 To lv.ListItems.Count
lngTot = lngTot + lv.ListItems(lngIndex).SubItems(1)
Next
[Code]...
Value of type 'System.Windows.Forms.ListViewItem.ListViewSubItem' can not be converted to 'Integer'Basically, I need to total up a number column in a ListView.
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Feb 22, 2012
In my below forms, the user select a name from the combo box list and enters an amount for the name selected. The user can enter as many entries. Every time the total button is clicked, I would like the total for each person to be display on the labels.
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Sep 8, 2009
I've searched the forums for this, but I can't seem to find exactly what I am looking for. I have a form currently that allows me to open a photo in a picturebox. I would like to add functionality that would allow the user to click on a specific part of the photo and add a point overlaid on the photo. This point would be the graphical representation of comment that they will enter in a separate text box. I am stumped on how to even start to get this done.
[Code]...
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Apr 18, 2009
how can i make it so my textbox can only have numbers in it
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Nov 7, 2010
I'm trying to block specific websites by adding them to a system.collections.specialized.stringcollection in my.settings, where i use
Private
Function
GetBrowser() As
[code]....
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Oct 29, 2006
is there a way to allow only numbers in a textbox?
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May 30, 2009
I have textbox and it has keypress event , I want users to allow only numbers
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Oct 24, 2010
I 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.
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