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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Jan 23, 2012
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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Apr 17, 2012
I have a text box that I only want the user to enter A, B, C or D (it'll give an error msg if anything else is entered)
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Jul 3, 2011
I am going to make a form which will have 10 MaskedTextBoxes. I want to validate input of all these MaskedTextBoxes then Sum the input of validated one into another MaskedTextBox. If there is any value in any MaskedTextBox it mast be validate by the format of "9990.000" or if it is empty return zero. I do not want to write the same code for every MaskedTextBox, I want to use function & sub. The problem with "e" type TypeValidationEventArgs. When I call the SumBurBoxes sub in txtBur_1_TypeValidationCompleted & give the "e" as second parameter, then if the txtBur_1 be invalid type and any other txtBur Boxes have value it will get error on all boxes if the txtBur_1 be valid type even the the other boxes be invalid type it does not get error on them.
Here is my Code.
Public Class Entrance
Private Function RetrnTxtBur(ByVal index As Integer)
Dim txt(0 To 9) As MaskedTextBox
txt(0) = Me.txtBur_1
[code]....
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Apr 24, 2011
yeah im very far with the project right now just a day or two probably of completely finish it, but im so far that itll break alot of things if i change a textbox i have for a maskedtextbox, besides there are some things that the normal textbox does a bit differently than maskedtextbox, ive searched around the net and found nothing about this in vb express, probably because everyone uses maskedtextboxes instead xD
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Jun 30, 2012
im calculating fare amount from 2 masktextbox mtxA and mtxB, i use the format 0000.00 ,, i was able to convert all prompt char values from mtxA and turned them into really zero but however it doesnt do the same on mtxb, though ive used similar code.. so my flow should be: whatever i values i put on mtxA.. on its textchange,its current value should be also put to mtxB plus an additional of 200.00
as an example : if i put on mtxA = 0030.00
mtxB = 0230.00 should be the display
but what is shows on me is mtxB = 2300.00 and also if i save it on the database .00 is not added,.....im tired fixing this so i try to use textbox instead of maskdtextbox, what i did is put lots of conditions and function on keypress to have the same format 0000.00 but i failed because everything on my code mess up whenever the user tried to edit the text according to textbox current position..check textbox.text current length from 0 to before the cursor location...but i dont know what code i should use to get the length..
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Jan 25, 2012
i am making application and for the security pupose i setup a registration form and use the masked texbox to as the input of the serial till now this is my code
Private Sub Serial1_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Serial1.TextChanged
If Serial1.Text.Length = 4 Then
Serial2.Focus()[code]....
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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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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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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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Jan 19, 2012
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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Sep 29, 2009
How can we limit the textbox to input ONLY three numbers and three letters?
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May 6, 2010
How do I code in vb.net that the text box can only accept 10 inputs from the user. User can only enter 10 strings.
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Aug 19, 2009
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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Sep 28, 2011
How do I get just the value that is typed into a MaskedTextBox?For instance, if I have a MaskedTextBox with the mask of (999) 000-0000 x000000, and the user typed in a phone number, like (905) 555-1234 x6869.How do I get back the raw number value, without the mask? (ie: 90555512346869)
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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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Jan 15, 2011
I need some help with the input validation of my application. Attached is the code that I have written as well as a screenshot of the front end. I specifically need input validation to verify that the user selected input for cbLengthOfStay is a number between 1-10 as well as input validation to verify the user input for txtMedication, txtSurgicalCharges, txtLabFees and txtRehabilitation is a positive numerical number. Please feel free to critique my attached code. [Code]
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Sep 11, 2011
Cause I just dont get whats going on here. I have a bunch of combo boxes linked to their own Tables in my database, 14 in total. My problem is that only 13 of them work and every one I add after 13 doesnt work for some reason.So I make a ComboBox, press the arrow in the upper right corner and click "Use Data Bound Items", Then I fill in the rest as it should be. But only the "Selected Value" function actually works. I can fill in data to my other tables manually through this ComboBox, but I can not view my Data Source! If I use the same ComboBox and use any other Table it works, but not anything past my 13th table. The BindingSource is there, so is the TableAdapter. If I preview a select quary to the database it works as it should. But for not in the ComboBox!
Its driving me mad, can someone explain to me what might be going on here?
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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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Apr 12, 2012
I have a process that recieves a request and issues a response. Sometimes createing the response is taking too long. I would like to start the request, and after 8 seconds, if the response has been created, I would abort the process and send back a generic message.
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Jul 21, 2011
Okay, I've got a datagridview in my WinForms app that auto-builds the column list from a datatable schema. It's working fine, except that it allows the user to enter values too long for the database field. For example, I have a "name" field that is defined in the Sql-Server database as a varchar(50). Is there any way to limit that cell (column?) so that it only accepts 50 characters? Right now it lets them enter anything and throws an exception later.
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Apr 14, 2012
I am trying to auto tab to the next text box after my limit of characters has been reached in a text box. Visual Basic 2010 Can this be set in the properties? I have 7 boxes, each allowed to hold only one character.
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May 11, 2010
What exactly is a MaskedTextProvider? What is it used for?? and How do i use it?I mostly understand the MaskedTextBox control, but I'm not sure what the connection is between to two is?how to go about using the two... Does anyone know of any??? I found plenty of the MaskedtextBox, but none with a decent explaination of the use of the MaskedTextProvider.
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Jul 4, 2011
i recently use vs 2010 but i cant see the MaskedTextBox control in the toolbox.
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Aug 11, 2010
I'm trying to use a MaskedTextBox for a form. I'm not sure what to put for the Name property?
Is it: maskPhone or mskPhone or mtbPhone or ......?
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Sep 21, 2011
After experimenting around with DevExpress controls and adding them to my form, Custom mask do not seem to work on the MaskedTextBox. If I place a custom mask and debug, I get a null reference exception.
It seems to be the maskedTextBox's mask property that is doing this. I have tried setting the mask through design and by code. However, neither way works.
My question is, is it possible to use a TextBox as a maskedTextbox? To be able to format it? I need the user to enter in hours, minutes, seconds like hh:mm:ss or 00:00:00.
Here's the error I get:
"NullReferenceException was unhandled. Object reference not set to an instance of an object."
[Code].....
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Mar 17, 2009
I am creating a WinForms application using VS.NET 2005, VB.NET, and SQL Server 2000. My problem is the MaskedTextBox control. I can successfully insert the value in an SQL Server table column as smalldate such as 3/17/2009, but it displays as 31/72/009.
I tried the following with no success:mskLastPayment.Text = Format(rdr!LastPayment).ToString("MM/dd/yyyy")mskLastPayment.Text = rdr!LastPayment.ToString("MM/dd/yyyy")mskLastPayment.Text = CType(rdr!LastPayment.ToString(), DateTime).ToShortDateString
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Jun 6, 2011
how to understand a msakeditbox in null?
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May 11, 2011
What can I do when we need to write in maskedtextbox this format
like : 0.00
result : 1235422.10
first level any digits
second level just 2 digits
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Jun 9, 2011
for example i want to put 0000012, but the zero number not showing.
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