Validate A Textbox.text Value To A Currency?
May 15, 2010
I want to validate a textbox.text value to a currency. For example if a user enters $154.45 i want the value to be 154.45 or if the enter USD154.40 I want that to be invalid. how can I do this? basically check that the input is all numbers.
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Apr 12, 2009
I would like to know that how am i going to validate the data inside a currency field to see whether its format is correct or not ?How am i going to reload the data when an action is canceled ? For example, when i click the cancel button, a message box will pop up and ask the user whether he/she want to cancel the action. When the user click yes, the action will be cancel and the data inside a database will automatically display inside the text boxes, as if everything is start from the beginning
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Oct 21, 2010
this is my code in VB.NET 2008 and it works as the result, i can input starts from 1.00 until 99.99
but i need more than this i want the textbox automatic validate the input as i typed in the textbox
example: i typed "1000" then the textbox will write "1,000"
example: i typed "10000.99" then the textbox will write "10,000.99"
nb: it has to disabled from typing ","
[Code]...
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Apr 10, 2009
Can someone tell me how to validate numeric, alphanumeric, currency, and 4-digit number in textboxes ?
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Jun 12, 2011
I'm struggling with my computing coursework in college and I though My issue is simple but I can't get it right. I need to validate the text into a textbox and check that it contains ONLY alphanumeric characters, but it MUST contain both, not either numeric or alphabetic, but some of each.The textbox should store information about a Street address, that's why both the street Name and the property Number have to be input. Spaces " " and points "." should also be allowed.If it helps, something like "12" or "St. Davis Street" should NOT pass the validation checks, whereas "St. Davis Street 12" will do.I would like to get it done with regular expression as I've been using them throughout my work, but I don't mind other solutions.I'm using Visual Studio 2010 Professional, 4.0 framework and Visual Basic.
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Jun 10, 2011
I know you can validate textbox text by using the keypress events. But the form i'm working on has multiple groupboxes with multiple textboxes. So rather than having a sub routine to validate every groupbox, i was wanting to have just the one keypress event that handles the textbox entries, and depending on the textbox calls a specific validation routine.[code]
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Feb 17, 2010
I am new to Win Forms, I have a scenario here..When User enter ID in a textbox, I want to check that value in database and get the name for that ID before submitting the Submit Button.
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Nov 29, 2011
I want to format several textboxes so that they would accept a decimal number like 2356.90. Now, let me first describe to you how I designed the designers view.. or rather I am going to attach what I did.
Ok... first the textbox SUM OF THE BILLS i would want to display two decimal point places.. so that when a person clicks the click for sum button, it calculates the sum of the bills and places it in the textbox. I got this code so far...
Code:
Private Sub txtJanuaryBillsSum_TextChanged(sender As System.Object, e As System.EventArgs) Handles txtJanuaryBillsSum.TextChanged
txtJanuaryBillsSum.Text = Format(Convert.ToDouble(txtJanuaryBillsSum.Text), "####.##")
[Code]....
Everything was fine and it was running ok but when i added the code for the format of the textbox I suddenly got that error.
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Apr 26, 2010
I have a textbox called txtfullfee, which is populated from a table in sql server. The value is 50.00, what I want to show on the text box is 50.00 instead.From the properties menu can I set somewhere to have the sign infront of the value.
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Mar 4, 2010
How to store currency symbol(like Rs) in a textbox in vb2005.I have to do currency math and store it in database
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Mar 11, 2011
This was a problem that i faced while working with vb6 and now its VB.NET. How do i format a Textbox in VB.NET to " Indian Currency Format " ( 00,00,000.00 ) ?
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Aug 27, 2008
On a form I have a listbox and a textbox bound to the same dataset. When I click an item on the listbox the information changes on the textbox accordingly. The textbox is bound to a currency value. I have been using the following string to format it.PriceTextBox.Text = result.ToString("C")It works but I am having problem figuring where to put this. I have one under Validating event of the textbox which works fine when the user is entered in the text box.The problem comes when the form first load the Listbox and the first value is display in the text box it is not formatted. I have to select another item on the list before the textbox format works.
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Feb 11, 2011
I have a textbox that is filled by the method [code]...
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Jan 26, 2010
I have completed all the code for a loan calculator, but am unsuccessful in displaying decimal variables in string as "currency". I have added the .toString("c2") statement and only get one array to display in currency, then the second array does not round properly. Is there a convert function that will work? Here's my code:
Public Class frmLoanCalc
'Ken Schoening
'Loan Calculator
[Code].....
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Mar 4, 2010
How to show currency symbol(like Rs) in a textbox in VB2005.I have to do currency math and store it in database.
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Apr 24, 2011
I am trying to create a currency converter that will convert currency. I have a text box to enter the amount and 2 combo boxes to choose which currency you are converting from and to.
I am using a webservice site XML that contains the conversions.
The problem is I cannot get the display to work properly.
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Apr 12, 2012
Ok.. i'm trying to validate a textbox, and i think i got the code pinned down, however,after it is validated.. how do i loop so it lets you input the data in again after you have entered incorrect data
Do
NameNew = txtName.Text
If txtName.Text > 100 Then MsgBox("too high")
[code].....
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May 1, 2009
how i validate the textbox textbox only get integer value and after that this integer value assign to a integer variable.
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Mar 24, 2010
I want to write 123.32 i have implement validation but it does not include "."
how to include it
If (e.Key > Key.D0 And e.Key < Key.D9) Or _
(e.Key > Key.NumPad0 And e.Key < Key.NumPad9) _
Or e.Key = Key.Back Or e.Key = Key.Tab _
Or e.Key = Key.Decimal
[Code]...
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Jan 15, 2012
how to validate the text box value? I have one class with function for validating the duplicate value of sql table.
[Code]...
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Apr 10, 2010
How could i validate a textbox in vb.net, so that it gives error message if i enter anything apart from alphabets?
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Jun 22, 2010
I have been straggling to mask a text box. I searched for the Mask property I could not find it. I have also tried to use textbox.mask it tells me that mask is not a member. I'm trying to enter currency in The text box ($1000.000) I'm using Visual Studio 2010
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Jul 11, 2011
I have check boxes selecting prices that go straight to the text box, how can I make it so it will display $ and two decimal places?[code]....
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Mar 5, 2009
I have a form with a textbox, and i would like validation to occur so that a blank field is not allowed
e.Cancel = String.IsNullOrEmpty(TextBox.Text)
Does not always work, because it still allows me overwrite an existing field with blank spaces, and then update.
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Jul 6, 2009
I am trying to validate the character within a textbox. The textbox has a MaxLenght of 1
Private Sub textbox1_TextChanged() Handles textbox1.TextChanged
If allowed_characters.Contains(textbox1.Text) = True Then
textbox2.Focus()
End If
If allowed_characters.Contains(textbox1.Text) = False Then
textbox_userid_input01.Clear()
End If
End Sub
When I enter something in textbox1 at the debug it will do the if contain = false
but the if contain = true doesn't work. I tried a lot, but it still doesn't recognize true.
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Apr 1, 2011
i have this code:
If TextBox1.Text = "" Then
Label2.Text = " feild empty "
Elseif TextBox1.Text <> "1234" or "7463" or "3625" or "7642" Then
[Code].....
it works when its only only content "1234" but i need to place more than one possible valid input.
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Aug 31, 2011
How to not accpet string in textbox only numbers will be validate..for the textbox contact no. and ge..
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Jun 12, 2011
Since my last thread hasn't been answered and I simply cannot wait until it gets answered, how can I validade what is being written on a textbox?
I need to know when the user types a "-" (minus) char. And when he do so, an message appears (preferably an ballon or a tooltip) and says that is illegal to type this char in particular.
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Sep 8, 2009
If the user enters non-numeric and numeric values in a textbox, how do I keep only the numeric part?
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May 4, 2012
how one would go about validating input into a textbox for example:
Lets say the first letter the user enters has to be 'A' and the third letter the user enters has to be any number ranging from 0-9 and the length of their input cannot exceed lets say 10.
This is what I have so far:
If txtOperatorID.TextLength > 10 Then
bErrorOccured = True
sErrorMessage = sErrorMessage & "-No more than 10 chars" & vbCrLf
[Code]....
The coding for the length works(is there a better way to do this)? The coding for the first letter to be A works but then I have no idea how to set validation for any proceeding characters entered. Am i right in thinking I have to find their position somehow in the string if so how?
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