Limit Textbox Decimal Input In C#?

Jun 26, 2010

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

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Limit Textbox To Input ONLY Three Numbers And Letters?

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How can we limit the textbox to input ONLY three numbers and three letters?

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VS 2010 How To Limit The User To Input . In Textbox

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How can i limit the user to input only one period in textbox cause in my textbox the user can input may periods on it??

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I found a function that validates the numberic and decimal input for a textbox and works exactly like I want. But it does not let me limit how many numbers after the decimal. how to do this in the same function?

[Code]...

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Winforms - Allow Only A Decimal Point After An Input Of Three Digits In A Textbox?

Nov 9, 2011

How do I allow only a decimal point after an input of three digits in a textbox in VB.NET?

Let's say I inputed "123" after that I can only put a decimal else it wont allow any other input. So the result would be "123."

Dim KeyAscii As Integer
KeyAscii = Asc(myE.KeyChar)
Select Case KeyAscii

[Code]....

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Limit Textbox Input To Numbers And Range Of Numbers

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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Feb 23, 2010

I am writing a basic math program where some textboxes are input and some are result data. I would like the result data to be limited to 2 decimal places.

[code]...

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Limit Numbers Into 2 Decimal Places?

May 26, 2009

how to limit number into 2 decimal places sample when i got number of 1000.7585545 is should be 1000.76 i have this code below but based on the given sample it will result to 1001.00

If txtpassPrice.Text <> "" Then
Dim dblTranspo As Double
dblTranspo = txtpassPrice.Text
txtpassPrice.Text = Format(dblTranspo, "#,##0.00")
End If

i tried this one but i will result to 1001 only

If txtpassPrice.Text <> "" Then
Dim dblTranspo As Double
dblTranspo = txtpassPrice.Text
txtpassPrice.Text = Format(dblTranspo, "#,##0.##")
End If

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Limit The Number Of Decimal Places?

Jan 29, 2010

ive done a bmi calculator bbut the end result has 4 or 5 decimal places when i only need one. how do i limit the number of decimal places

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Limit The Number Of Decimal Values To 3 In Numbers?

May 3, 2010

I'm trying to limit the number of decimal values to 3 in numbers such as .3125 but I also have numbers such as .5 which I need to leave as is.

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Limit The User Input To Exactly 5 Characters?

Mar 11, 2011

I have 200 dynamic textboxes.

I am trying to limit the user input to exactly 5 characters ( not more, not less ), and numeric only.

I have been trying this :

Private Function txtValid()
Dim str As String
For Each txt As TextBox In Panel1.Controls

[Code]....

But it always shows the last messagebox. Not all 200 textboxes will be filled in, so I suspect that it may have something to do with that, but I just need to stop the user from entering alphabetical characters, and the entered field must have a length of 5

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Richtextbox-how To Limit Input Of Text

Mar 11, 2010

I have a big issue which I have been struggling with for days now. I have a richtextbox where users Can input text and print it.

My problem is that i don't want to allow more than one page to be printed so i need to prevent the users in inputting more text than what fits to one page.

I have word wrap set to True which means that i really can't count the lines since they are determined by number of return/enter hits. I can't set the character to a max because blank Lines and spaces Can cause this to differ very much.

What i really need i a way to prevent the users in inserting more text than would fit inside the richtextbox frame and the frame may not be resizeble.

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VS 2010 : How To Limit Maskedtextbox Input

Feb 25, 2011

I have a maskedtextbox that i want to limit character input in it but i can't manage to figure it out.The date type is "yyyy-mm-dd" and the mask is "1300/00/00" (it is not gregorian calender, it is persian )In the TextChanged event i am changing the bindingsource filter.Because of this i don't want the user enters invalid date. For example the user enters 9 in here : "1300/90/00" i want to prevent this from happening before TextChanged event occur. (the place isn't important i just want to stop user from entering an invalid month or day)I have tried the KeyPress event but i don't know how to detect where in the textbox user is entering a character.

Note that i know already how to validate and i have a code for that but the TypeValidationCompleted event occur when user does all changes and leave the textbox.

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Asp.net - Limit Input Of Regular Expression Validator?

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I'm currently coding a ASP.NET web application using VB.NET. I'd like to know how to limit the input of the regular expression validator to numbers only (with specific number of digits e.g 7-20 digits).

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Input Any Words In Textbox - The Program Will Reply By Sound Of What Input In The Textbox

Jul 7, 2009

i use visual basic 6 i already try making a button to play sounds. by clicking the button and the sound will out. so that i want to know were could i start, when you input words in textbox the program will speak what you have type in the textbox.
_

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Form Decimal To Textbox, From Text Box To Decimal

Dec 21, 2010

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

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Document Containing Many Activex Textboxes Which Are Used To Apply A Character Limit To The Users Input?

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I have a word (2003) document containing many Activex textboxes which are used to apply a character limit to the users input. Sometimes users want to paste data into the textbox from another source ks fine, but if they try to do it via the Edit menu then the textbox is deleted and replaced with the pasted text

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VS 2008 Forcing Input To Two Decimal Places?

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I have a form with a textbox on it. Validation occurs on the leave event. If validation fails, the focus is set into the textbox, making it impossible to click outside it unless there is a valid value entered. A valid value is anything from 15.00 to 99.99 inclusive, always with two decimal places.What code will return a boolean answer that checks if the input is valid?

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If my Category and Forum selection is incorrect I am sorry and feel free to move it. I'd like to have the users input in the message box that will show. For example: There is a textbox and the user puts in their name as Bob. Then the message box would be: What my main goal is, is being able to include the users input they type inside the textbox inside the message box.

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VS 2005 - Login Failed - Input Valid Username And Password In Form Textbox To Input Strings In Php

Sep 25, 2010

I have a problem with the code, I have input the valid username and password in the form textbox to input the strings in php, but it keep displaying the messagebox that says login failed.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
MessageBox.Show("Please enter your username")
ElseIf Textbox2.Text = Nothing Then
MessageBox.Show("Please enter your password")
Else

[CODE]...

I don't really know why it keep displaying the messagebox that says it failed when I have input the valid strings in the first place.

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VS 2010 - Exit Loop When Cancel Used (Decimal Input)

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I want to make it so when cancel is used it exits the loop but I need the Input as a decimal.
Do
txtItems.Text = intCounter.ToString
intCounter = intCounter + 1
msgInput = CDec(InputBox("Enter Item Price", "Item Price", ""))
decSubTotal = msgInput + decSubTotal
txtItemPrice.Text = msgInput.ToString("C2")
[Code] .....

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Jun 8, 2011

I wanted to set a maximum limit of characters of textbox in the properties but i can't find where it is located unlike in vb 6.0 you can set the characters in maxlength...

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May 22, 2009

I have this textbox and i want to limit the number of digets able to be entered to 4.

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My objective is to, instead of entering in the data manually into the text boxes, I want to read in a textfile. The Calculate button will contain the code to read in the file and assign it to the appropriate textboxes. Save the separate file in the \bin\Debug folder.

The text file just needs to have 3 integers on 3 separate lines.The code I posted works without and errors, but.I am having some trouble integrating the Stream Reader.

[Code]...

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I want to limit the Textbox to a range of characters in VB. For example, I want the user to enter strings from 5-7 characters. I know how to limit the Textbox to a certain number of characters by MaxLength but that will give him the option of writing just 3 or 4 characters which I don't want to allow that from happening.

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VS 2010 Limit Values In A Textbox?

May 13, 2012

So far I have code for a textbox that limits the value entered by a user to two value places. However, I would like to limit the value entered by a user to numerical values only. And to handle any exceptions that go along with it.

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