Masked TextBox Appearance - Accept Numerical Values Between 0 And 999?
Aug 10, 2011
Problem: I wanted data input text boxes that only accept numerical values between 0 and 999. I could check for this during a later 'save' routine, but instead preferred to warn the user at the input stage; so I chose masked textboxes - setting the mask to "000". However these boxes appear and behave differently. They have a row of 3 underscores - which I don't want - and also seem more difficult to hit with the cursor. How can I get Masked TextBoxes to appear and behave exactly as normal ones?
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Jul 22, 2010
I am checking for empty string values, but how do i see for the Quantity text box if the user chose only numerical values after the empty string. For example...
[Code]...
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Mar 26, 2011
How do I validate textboxes so that they accept only numerical input (1 2 3 etc and not abc @$ etc)? Is there some kind of property of the textbox that I have to change?
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Jun 24, 2009
just a quick question. I'm trying to code a textbox that will enable a button, only when the value in the textbox is no less than 1. I've tried an if statement with txtBox.Text > 0 doesn't work Will it involve something with Min and Max values?
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Mar 12, 2010
I need help with making a textbox only accept numeric values only, as in setting a timer interval.
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Dec 9, 2010
I am looking into data validation as I need a way of setting a textbox to only accept numeric values. I have had a search for this and it doesn't seem as straight forward as I had hoped.
I have found a couple of possible methods, although the sites which I found them where very unclear on how they actually work. I feel strongly that I should know how all of my own programs work >_>
I have no actually got this to work with my program yet. Are there better methods than this?
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
Dim allowedChars As String = "0123456789$,"
[Code].....
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Nov 4, 2010
I want my code to look at a textbox to determine which letter is in it, & assign a numerical value to a second textbox, based on what letter is in the first textbox.[code]The problem is that, when I step through the code, I can see that Form20.txtGrade1.text DOES EQUAL "C", but my code skips over the part that says Form20.txtGrade1a.text = "4". Instead, if I hover over that part, I can read Form20.txtGrade1a.text = " ".When I do not step through the code, and just run it, I see the two textboxes, with the first one containing the C, and the second one is just blank.
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Feb 26, 2012
I've made a temp converter and i'm looking to get some validation for it. I have looked online, but most do it in a way that i don't want.
I have 3 text box's, of which i only want numerical values and nothing else to be entered into the boxes. However, i would like the validation to run when a button is pressed (in this case, the calcualtion button). I would like a messagebox to pop up stating there is a non-numerical value entered into any of the boxes and for the calculation code to not run.
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Nov 18, 2009
I am trying to mkae sure that there has been 16 numeric digits entered into the masked textbox. If not show errror message and if so to call the fucnction ValidateLuhn. When calling Validate Luhn i want the program to tell me if the number entered is valid or invalid using the code in the function:
Private Function ValidateLuhn(ByVal value As String) As Boolean
Dim CheckSum As Integer = 0
Dim DoubleFlag As Boolean = (value.Length Mod 2 = 0)
[CODE]...
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Dec 13, 2011
I have created a program and would now like to stop users from entering incorrect values/Text inside specific textboxes. For example i would only like text to be entered when a customer name is to be inputted and if a numerical key is pressed a message box will appear saying "sorry letters only" or something in that line. Also waould like it the other way round when trying to enter text within a number only text box.[code]...
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Apr 15, 2010
I'm creating a calculator in visual basic 2008, and with this calculator I want to implement a feature that can store numerical values in a variable for instance x. Similar to the feature used in most graphing calculator that have the button showing: "STO->". I was thinking on using the My.Settings. But I'm having trouble on it.
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Sep 9, 2009
Would it be possible to take the numerical contents of a textbox that looks something like:
100
300
456
674
50
25
and on button click have them added together and display the total on a label.
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Jan 15, 2010
i wanna know about the main characters on Masked text box and meaning of them like CCCC, L, ?, 000, 999 and the second question is how i can use masked box to make user type a valid EMAIL.
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Jun 9, 2009
I'm trying to code a masked textbox so that when you jump out of it, when it's emply, it turns yellow. [code]
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Feb 11, 2011
I have many textboxes that I need to have display percentages. I have used a masked textbox extender and the percentages display fine. using 99.99% as a mask and number as the mask type.Now my problem is that i want it to be converted to a decimal when i save it to the database e.g 50% saves as 0.5 and then when it comes back from the database it must display as 50% again. This is needed for numerous calculations. IS there a way to do this?
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Nov 27, 2009
tabbing while using masked textbox.
I want to tab over to a masked textbox and highlight the text.
I have managed to do this with normal text box. But having trouble with masked textbox
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Dec 8, 2010
I know the title spounds stupid. I will try to explain what I meen. I am trying to make a product key mask. for example: I was able to do this with the MaskTextBox but I want to seperate each line to there own text box For example: [Textbox1] - [Textbox2] - [Textbox3] - [Textbox4] - [Textbox5] I already limited the Textboxs to 5 characters. The problem I am having is, after I enter 5 characters in the first textbox, I cant get the cursor to auto tab to the next textbox. I have already tried fixing it with this code
[Code]...
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Oct 6, 2011
I'm trying to write a Database manager in VB (2010) that updates a SQL database that compiles and summarizes my financial records. The code works, but I'm having issues with one exception that I think I understand, but can't circumvent. I've built an I/O form that enters a series of purchases and sales into a temporary datatable. After review of the list, the program connects to the database and executes the SQL. That all works and isn't a problem.
[Code]...
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Dec 15, 2011
How to enter the date in the masked text box and how to validate it
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Jan 13, 2009
OK, so i was going to verify a MaskedTextBox on whether the number input was or was not 10 digits in length. If not 10 digits, obviously they didn't put in a full phone number.
The problem is, even though you have no digits the length is still 10 so you can't check if the user put in 10 digits or not and return an error? Anyone got any ideas on testing for a phone number?I've seen tons of examples on date verification, but none on phone number verification.
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Mar 15, 2009
How can I set the startposition of a maskedtextbox. When i click on a maskedtextbox i always want to start at the first position.In visual basic 6 i used the gotfocus with maskedtxtbox.selstart=0 But in visual studio 2008 this doesn't work.
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Jan 19, 2011
I have a form with some textbox and a numerical keyboard on screen. The following code works well if only it had 1 textbox..
Private Sub botones_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bt0.Click, bt1.Click, bt2.Click, bt3.Click, bt4.Click, bt5.Click, bt6.Click, bt7.Click, bt8.Click, bt9.Click, btDec.Click
[Code]...
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Jul 28, 2011
I am using a masked TextBox, and I would like to check the input (total characters must be 14),
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Sep 22, 2010
i have several masked textbox connected to mysql database through a website i made, and what i'm trying to do is have these masked textbox automatically change the format what the user inputs to "hh:mm tt" so if the user inputs 6 or 600 or 6p it will automatically change it to the format to 6:00 PM.I know that i will have to use the Validated event and I've tried the Format(maskedtextbox1,"hh:mm tt") but can't seem to work. I would rather not use datetimepicker because i dont want the user have the option of using the dropdown.
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Mar 15, 2009
How can you hide the filter of the masked textbox?
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Dec 20, 2011
How to make the a particular cell as Masked text Box of Data Grid's Cell? Need to restrict the user to enter only,
like dd/mm/yyyy also with constrains with dd<31; mm<12; yyyy>1900
like Integer(Decimal) --> 25(0.001)
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Jun 28, 2010
I am new to visual basic. I am putting a masked text box that is data binded. Example social security number 000-00-0000. When the cursor is on the masked field, a can no longer exit the field. I tried a couple of things on the forums but it has not worked yet. It could be a very simple but I am failing to see it.
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Oct 31, 2010
I'm working on a project that employs a masked text box with a mask ####. When I run the code it pulls the value from the textbox then clears it. When I try to type in it again the first character is added before the mask. (ex. 1#### instead of ####) I've figured out that pressing backspace before trying to enter numbers again resolves this issue. Is there a way to send the backspace function rather than the chrs(8) like SendKeys.Send(Keys.Back) does?
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Jun 8, 2009
I have an assignment in which i have to do a masked textbox for the canadian postal code. So under the mask settings i set it to L0L 0L0. My teacher wants me to make it in such a way that if the user clicks on the postal code textbox and doesn't enter any values in and click in another text box, the box should be highlighted in yellow. I am able to do it for regular textboxes using
If txtcity.Text = "" Then txtcity.BackColor = Color.Yellow Else txtcity.BackColor = Color.White But when i try to the same thing for a masked textbox the colour does not change. This is what i have entered for the masked textbox
Private Sub mtxtpostalcode_MaskInputRejected(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MaskInputRejectedEventArgs) Handles mtxtpostalcode.MaskInputRejected
If mtxtpostalcode.MaskFull = "" Then
mtxtpostalcode.BackColor = Color.Yellow
Else
mtxtpostalcode.BackColor = Color.White
[Code]...
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Feb 13, 2012
I have a dataSet that I am using to populate a masked text box field. The mask is set to ShortDate ("00/00/0000") but when the number is inserted into the text box it is not formatted correctly and is inserted and the date 2004-04-07 looks like 47/20/04 1 in the masked text box.
what I can do in order for it to read correctly?
RegUpdateSectionPage1.txtSysInfoRegDate.DataBindings.Add("Text", dataSet.Tables("Info"), "regdate")
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