1) One Decimal Varibale stores a decimal value
2) The value must be converted in string ( some time the comma is used as decimalplaceholder some time the dot)
3) the user modifies the value
4) i need to riconvert the string back in decimal
how can i do this
so:
Variable 123.34D ----> textBox 123,34 or 123.34 -----> variable 123.34D
What is the cleanest, most readable way to String.Format a decimal with the following criteria
start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s
I want to format textbox to decimal : I use this code in button1.click , it worked :
TextBox1.Text = Format(CType(TextBox1.Text, Decimal), "##,###.###")
But each time button1.click and textbox is formatted will bring a unexpected error for me. I want in form.load event. I format textbox. I tried above code but it is error.
how do you convert a decimal ( decimal place holder = dot) to a decimal (decimal place holder =comma)?
View 6 RepliesOdbcDataReader in showing decimal fields Decimal separator disappear with DB2 dsn
View 3 RepliesAfter converting all degrees-->decimal, and decimal-->hours, how can i use Tan, Cos and Sin formula in vb.net? I want the user must enter an input (which it is a coordinat-->i already convert the degrees-->decimal value as suggested by stanav and paul.
The questions like this (i only calculate on paper but dont know how to implement in code):
Input user need to enter:
-latitude local (e.g. 1.4875)
-longitude local (e.g. 103.3883333)
[CODE]...
My user requests to change the . on the numpad to a when entering text in a multiline textbox.So I was thinking about the KeyDown event.To determine if the numpad . was pressed I can do something like this [code]But now how do I change the returned charachter as a , ? All e.Key... properties are ReadOnly. The KeyPress events let me change this by providing e.KeyChar, but in that event I can't check for the numpad .
View 2 RepliesHow would I go about rounding up decimal numbers to the nearest 2 decimal places? For example $7.0000032 would be $7.01 In theory, VB would make it $7.00 but if it is > $7.00, I want it to reflect that to the nearest penny... so $3.0000001 would be $3.01
View 5 RepliesIf I have the code:Dim x as Decimal = 100.0m
Is it casting from a double to a decimal implicitly. How would I do this explicitly in vb.net?
Is there a way in VB .NET to have a decimal variable with 40 decimal places?
View 3 RepliesMaybe this is just a really basic question that everyone knows the answer to, and is why I couldn't find the answer. What I want to do is pretty simple. I want to declare a custom type that's just like a Single, except when you access the value, you get the value rounded to the second or third decimal place. Something like this:
Dim MyNumer as TwoDecimalNumber
MyNumer = 1.124
Msgbox(MyNumber) 'This would pop up a box showing "1.12"
[Code]....
Problem: Using the sub routing below, when adding a value to another value the results eventually change from 2-decimal places to multiple decimal places.Basically, the amount stored should always only be 2 decimal places, because the values passed in are always 2 decimal places. Output from calling the sub routine multiple times.
Running total = 329430.75
New Withheld Amount = 710.79
Running total = 330141.54
[code]....
As a workaround, I have a new routine that uses a custom round function to properly store only 2 decimal places - as the VB round function does not perform the type of rounding desired.I understand that we are removing the value from the dictionary and adding it back..
format number to hower many number on left of decimal and 1 decimal without rounding
View 2 RepliesI have a TextBox in a Windows Forms application in VB 2008 (.NET 3.5) where a user can key an estimate amount. I am allowing them to key dollars and cents, and I want to round to the nearest dollar. The original code had the rounding down when the data was written back to a table, and that worked fine - I have this code in a "Save" routine that fires when the user moves to a different screen or record:
Dim est As Decimal : Decimal.TryParse(txtEstimateAmount.Text.Trim, est)
Dim estimatedAmount As Integer = Math.Round(est)
I decided that it might be nice to actually do the rounding as soon as they leave the field instead, so they're not surprised when they reload the screen and find that 1822.60 is now 1823. So I took the exact same code and added it to the TextBox.Leave event handler. And the weirdest thing happened: instead of the variable est being populated with 1822.60 after the parse, it gets set to -1! What the...?
Debugging the handler shows that the value goes into the parser correctly, and if I do the parsing manually via the Immediate window, it parses correctly, but when I let the code do it, it invariably gets set to -1. What's even weirder is that any number gets parsed as -1, not just decimals, and any non-number gets parsed as 0 (which is correct).
Has anybody else ever run into this before? I tried moving the code to the TextBox.LostFocus event instead, but with the same results. I have no idea what in the heck is going on, and obviously there are workarounds galore for this, but it just makes no sense whatsoever.
EDIT: Here's the full event handler (current behavior for which is to put -1 in the TextBox):
Private Sub txtEstimateAmount_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtEstimateAmount.Leave
' Take any dollars-and-cents amount and round to the nearest dollar
Dim est As Decimal
[code]....
Here is the code in C# to allow only one decimal point in a textbox:
if textbox5.text.contains(".") && e.keychar="."
{
e.handled=true
}
I have to use it in VB.NET 2003 version, but I can't use the contains property. How can I do this?
I have a textbox aka TXT_Weighting in which I place a value of %.
If I put in a number 0 < number < 100, it works.
However, If I put in 100, I get this error: "error converting Data Type numeric to decimal"
The Database Field has the DataType of decimal(10,2).
I have tried converting it to decimal, string, int, float in the application, but once it saves, gives the same error.
I know it is because of the database field having the type as decimal. But I cant stop the entire application, just so I can change the data type of the field.
How do I save it without getting this error? How do I control it from the application?
[Code]....
How to convert the textbox.text to a number with decimal points. Once the subroutine have been process, the numbers will be dispalyed on the textbox or label in a format with two decimal numbers.
View 2 Repliesvalidation for , allow only 2 digit after decimal point in TextBox in vb.net eg 150.25
View 3 Repliesi am very sorry for the inconvnience. this is my first post... i have downloded this souces code version of (VB6) . i want to convert to vb.net 2005 or vb.net 2008[u]..... i think this function usefull for others also. i am try to develop Payment system. i will post it after complete. there are so meny controls. i need this one also add to my Payment System.... Text Box Keypress event is not compatibal with Vb.net..
[Code]...
How can I make a textbox in which can be only typed a number like 12.00 or 1231231.00 or 123123
I've done this in a very long way and I'm looking for the best and fastest way.
Also the decimal separator must be culture specific.:
Application.CurrentCulture.NumberFormat.NumberDecimalSeparator
In COBOL, I read a value (a currency amount with 2 decimal places, for example) via a picture clause (and a screen section, of course), like:
WORKING-STORAGE SECTION.
01
VALUE-TO-READ PIC ZZZ,ZZ9.99.
...
[Code]....
The tricky part here is, whenever the decimal sign key is pressed, the input procedure understands that the following number is to be displayed to the right of the decimal point (not left).
Now, I'm trying to do this in VB. Unfortunately, my all attempts failed with MaskedTextBox.
Do I have to hardcode this procedure in my program, or is there an easier way to get around this?
1)How to set the textbox only allow (Numbers , No decimal)?
2)How to set as Default two decimal place for textbox?
My problem is My AmountDueBox.text keeps showing my SubTotalDecimal. I want it to Show My Amount Due decimal (SubTotal + TaxDue - TradeInDecimal). I have text boxes displaying the various elements of the total along the way and they are all right except the final amount due. TotalDecimal- TradeInDecimal.
Public Class VBAutoCenter
'Declare Variables
Const SalesTaxDecimal As Decimal = 0.08
Const StereoDecimal As Decimal = 425.76
Const LeaterDecimal As Decimal = 987.41
Const CompNavDecimal As Decimal = 1741.23
[Code] .....
I need to amend the code below to cater for only two Decimal places. Anyone know how i can do this?
[Code]....
I currently have a calculation that gets performed based on the type of operation a user chooses on my form (+, -, *, or /). I have it check their answer against the correct answer and tell them if they get the answer right or wrong. I need to know how I can check the answer when they choose a division sign that checks only the first two digits of the lbltxtAnswer label. I also currently have a validation that checks for numbers only, so if the user types in a decimal, the error message displays, which I don't want it to do. Here is my calculation and validation [code]...
View 2 Repliesit should take either decimal values or integers and max length is 16if it takes decimal value as input then it should contain only 14 digits in decimal place and 2 digits in fraction part eg(1234567.12-valid) but (12345678.123 - invalid) and also(123456.12345- invalid)
View 2 RepliesI got this class from another vb help forum and I'm using it for fields that accepts monetary values. Is there a way to incorporate a '1-decimal' point only rule?ATM, I can enter values like this: 1.2.2.20000..I need to limit the number of decimal points used. (1.0000)[code]
View 7 RepliesHow can i change the format of my textbox into two decimal places "#,###.00"
i used mask textbox and used this format 0,000.00 but i cant input more than 4 digits whole number
I want to take more than one number separated by one space from txtDec textbox and display their binary form again separated by one space in txtBin textbox.
My code below ---
Private Sub DecToBin()
Dim i As Integer = txtDec.Text
Dim binary As String = Convert.ToString(i, 2).PadLeft(8, "0"c)
txtBin.Text = binary
End Sub
I am developing windows application in vb.net, i have textbox which should allow only numbers with decimal point. for example "99.00"
View 6 Replies