Keypress Subs - Field To Only Accept Numbers Or Backspace
Aug 13, 2011If I have a form that has a text field, and I want that field to only accept numbers or backspace, I can create a sub such as:
[Code]....
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[2008] KeyPress - TextBox On My Form Can Only Accept Numbers 0-9, Backspace And '.' /without Quotes
Mar 10, 2009I have a simple question regarding the KeyPress event. I'm trying to make it to where my TextBox on my form can only accept numbers 0-9, backspace and '.' /without quotes. I've successfully got it to accept numbers 0-9, accept backspace, I'm just wondering - what line do I add so that it can accept periods as well?
Here's my
Private Sub TextBox_KeyPress(ByVal sender As Object, ByVal e _
As System.Windows.Forms.KeyPressEventArgs) Handles _
TextBox.KeyPress
[CODE]...
Limit A Textbox To Only Accept Numbers, Backspace And A Certain Length?
Jun 9, 2011I want to control a textbox to only allow numbers, backspace and a certain length. Ive tried with the IsNumeric function but I cant seem to get it to work.
View 5 Replies[2008] Keypress Event That Only Allows Numbers, Backspace, And Enter?
Jan 15, 2009I am trying to do an keypress event that only allows numbers, backspace, and enter. I have the part that only allows numbers
If Not (IsNumeric(e.KeyChar)) Then
e.Handled = True
End If
I need to know how to know what keychar the backspace and enter are.
[2008] Keypress Backspace - Msgbox When User Press 'backspace' In The Textbox
Feb 28, 2009I want to have a msgbox when user press 'backspace' in the textbox.
I wrote this:
Private Sub TextBox2_KeyPress(ByVal KeyAscii As Integer)
If KeyAscii = 8 Then
MsgBox("backspace")
End If
End Sub
Why it doesn't work?
Make A Controlbox Accept The Backspace Key?
Oct 5, 2009I am trying to make a textbox accept on the numbers 1-4 & the backspace key. The numbers part is working fine, but it will not delete the number once it's inputted into the box using backspace. Here's my existing code:
Private Sub txtCode_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtCode.KeyPress 'allows the textbox to only accept 1-4 & backspace If (e.KeyChar < "1" OrElse e.KeyChar > "4" _ AndAlso e.KeyChar = vbBack) Then e.Handled = True End
Backspace Characters In Keypress Event?
Jun 1, 2010I have two textboxes and as the user types in one I want to append the text to another textbox.How do I allow the user to delete characters in the first textbox with backspace/delete key and have those changes replicated in the 2nd textbox?
View 3 RepliesMake TxtState Control To Only Accept Letters And The Backspace Key?
Oct 14, 2009I have an assignment that requires me to edit some code, I already did most of it but I need to make txtState control to only accept letters and the backspace key. I was never taught how to do this and I only know how to do it with numbers. Here is my code with everything done, including the format I was taught to do keypress in with numbers and backspace. Can someone show me how to replace those numbers pr whatever to work with letters?
[Code]...
Allow Only Numbers Backspace And - Sign?
Nov 28, 2009I got this nice piece of code from someone on this forum which only allows user to input numbers or backspace i need to modify it to allow the - sign so user can input a negative number Can someone share with me the code to modify this
If Not Char.IsDigit(e.KeyChar) Then e.Handled = True
If e.KeyChar = Chr(8) Then e.Handled = False 'allow Backspace
Sum Of N Numbers Using Subs And Functions
Apr 7, 2009Option Explicit On
Option Strict On
Public Class frmMain
Private Sub btnSub_Click(ByVal sender As Object, _
ByVal e As EventArgs) Handles btnSub.Click
Call CalcSumSub(CLng(txtN.Text))
[Code] .....
I'm not receiving any errors or any thing I just need figuring out the logic in this program. The Program Needs to Accept Input in One text box and adds n numbers together and displays the sum using only subroutines and Functions.
Attached File(s)
Assignment5.txt (4.49K)
Number of downloads: 84
Text Box Won't Accept Numbers
Dec 16, 2009The text boxes are not accepting numbers. The thing is i already converted the data inside the text box from string to integer.[code]...
View 6 RepliesTextfields Only Accept Numbers?
Feb 24, 2010I have an application where a user is entering data into textfields using vb.net and then it is saving to excel. The textfields only accept numbers and do not allow the user to proceed unless all textfields have been filled out. If for some reason the user cannot enter in data (machine being broken etc...) is there a way that a messgagebox with a textfield can pop up allowing them to enter the reason that they couldn't enter a reading and then get saved to a textfile or sent as an email.
View 5 RepliesField Is Too Small To Accept The Amount Of Data?
May 12, 2011Updating an Excel file from a dataset seems to work fine. But if I have text that's longer than 255 characters then I get the error above.I've been working on this for a couple of hours and I haven't gotten anywhere. I've tried messing with the connection string and changing a registry setting, but no luck.
View 2 RepliesForms :: InputBox To Just Accept Numbers?
Oct 19, 2010I am in a class who has a prject due and I have a few questions to ask:
1) Is there a way to limit an InputBox to just accept numbers?
2) What control can I use to display 360 rows of data generated from a for loop?
Get The Listbox To Accept Numbers As Well As Letters
Dec 7, 2009My listbox will accept any letter I add, but I can't get it to accept any numbers. I tried a case select for 1-100 and I couldn't get that to work either,
Private Sub btnCount_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCount.Click
'Determine word count and average letters / word in the sentence
[Code].....
Make A Textbox Accept ONLY Numbers?
Nov 10, 2008hows to make a textbox accept only numbers? and ".". i tried looking in the Help, couldnt find something relating to it. i guess it's something to do with the keys pressed on the keyboard so if i could determine and reject certain keys (anything thats not a number) it could work.
View 6 RepliesProgram A Text Box To Only Accept Numbers?
Mar 31, 2012This displays as many numbers as i want but will also display a single letter.
Private Sub txtEnterGrades_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtEnterGrades.KeyPress
Dim intKeyValue As Integer
[Code].....
Textbox - Text Box To Only Accept Numbers?
Apr 2, 2012I'm fairly new to VB.net (self taught) and was just wondering if someone out there could help me out with some code. I'm not trying to do anything to invovled, just have a textbox that takes numeric value from 1 to 10. I don't want it to take a string or any number above 10. If some types a word or character an error message will appear, telling them to enter a valid number. This is what I have, obviously it's not great as I am having problems.
[Code]...
Validate Textbox To Accept Numbers Only
Nov 15, 2011i need to validate the textbox such that in can accept numbers only but the entered no should be greater than 0 , it can be 0.1 and should be less than 101.
View 2 RepliesVS 2008 Textbox To Accept Only Numbers From 0 To 100?
Apr 8, 2010During runtime i want a textbox to accept only numbers from 0 to 100.How to validate this textbox?
View 2 RepliesHow To Make Program To Accept Blank Date Field
May 30, 2010I have a field called PODate & TextBox txtPODate.text. It saves/updates fine when the txtPODate is filled. But when the txtPODate is blank, it throws an error. The problem is that I can't enter date for each record unless I got Purchase requisition converted into Purchase Order. Once it is converted to PO, I need to enter the date to update that filed. So, how can I make my program to accept blank date field.
View 6 RepliesAccept Only Alphabet And Numbers. No Special Characters?
Jun 2, 2011how to validate a text box to accept only alphabets and numbers. no special characters. in vb.net i have tried the following code but it doesn't allow numbers but it allows alphabets only
Private Sub TextBox2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox2.KeyPress
If (Microsoft.VisualBasic.Asc(e.KeyChar) < 65) _
Or (Microsoft.VisualBasic.Asc(e.KeyChar) > 90) _
And (Microsoft.VisualBasic.Asc(e.KeyChar) < 97) _
[code]....
Forms :: Make Textboxes To Accept Only Numbers?
Jan 11, 2010On Form Level, I use following codes to make textboxes to accept only numbers,How to add these codes in main module, instead of of writing these codes on every form.
If TypeName(Me.ActiveControl) = "TextBox" Then
With Me.ActiveControl
If Not IsNumeric(.Text) And .Text <> vbNullString Then
[code]...
Making A Text Accept Letters Only Or Numbers?
Mar 9, 2012how to make the values in a text box accepts only letters in the text box for data that are for letters only and numbers for data requiring numbers only
View 7 RepliesCreate A Text Box That Will Accept Numbers In The Currency Format?
Aug 2, 2009I need to create a control for input a currecncies to a field. I'm planning to use a Textbox.
This is the format of the text box for currencies:
"XXXXXXXX.XX"
the dot "." must be fixed in the textbox and it should be loaded with the textbox. Furthermroe i have plans to code eachtime a user enters a number it should print the numbers from Right ot left.
eg: When user enters Number 1234.34
When the user enter these number they should display them as:
when user enters 1
0000.01
when the user enters 2:
0000.12
when the user enter 3:0001.23
When the user enters 4:
0012.34
When the user enters 3:0123.43
When the user enters 4:(after entering all digits in the number)1234.34
Could any one give a couple of ideas how to creat these kind of boxes?
I was thinking about creating a custom control (a Textbox) but still i need to have a the above format in the textbox!
How To Make Textbox Accept Only Latin Characters And Numbers
Dec 11, 2011How Can I make TextBox accept only Latin characters and numbers.?
View 9 RepliesTextRate Control Should Accept Only Numbers / Period And Backscape Key
Oct 16, 2011I'm beating my head against the desk on an advanced level solution in the VB 2010 book, and can't figure out what I am doing wrong. This is the exercise: JM Sales employs 8 salespeople. The sales manager wants an application that allows him to enter a bonus rate. The application should use the rate, along with the 8 salespeople, in an array, to calculate each salesperson's bonus amount. The application should display each salesperson's number (1 through 8) and bonus amount. as well as the total bonus paid, in the interface.
1. The txtRate control should accept only numbers, the period, and the Backscape key.
2. A one-dimensional array should be used that has elements initialized to the following sales amounts: 2400, 1500, 1600, 2790, 1000, 6300, 1300 and 2700.
I have the interface created and its error free (for now) but its not doing what its supposed to do. It's supposed to show something like this. I can provide screenshots if necessary. [code] but what I get is a list of 0.00's in all of the above fields. What am I doing wrong? Heres the code finally, sorry if I was overly descriptive. This is my first time doing one of the advanced exercises, maybe I should go back to intermediate.
How To Get Sum Of Numbers In Specific Field Of Table
May 19, 2010From 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).
Validate A Field Which Contain Both Characters And Numbers?
Apr 1, 2010How do i validate a field which contain both characters and numbers? For example, I have a field call Item ID and it must be in the form of ABC123 where ABC is the fix characters that will appear in all the Item ID and 123 is the one that will change accordingly.
View 2 RepliesAdding Numbers From Repeater (Weight Field)?
Apr 20, 2010I 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....