Proper Way To Verify Characters Only In A Text Box
Nov 24, 2009
I can not find the proper way to verify characters only in a text box.I am having a hell of a time trying to understand all that.I have 3 errors in my code.One error is "Error-Reference to a non-shared member requires an object reference."the other two errors are in reference to an explicit conversion from string to double.strName is what I am using as my variable for the input of the name in txtName.text Below is my full code. "----" are used to separate the classes.Attached documents are in .PDF format and HAVE TO BE FOLLOWED to the letter.Pages 2 & 3 contains the UML diagram as well as how the project should look and the structure chart for the code. I am not truly sure if my DisplayReservation is what will work to use in the list box.Is there any other reference I could get to help me understand how to use a list box as the project requires.[code]
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Mar 3, 2010
I am working on an app and cannot remember how to verify that the first three characters in a zip code are a specific number.
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Apr 16, 2009
I have a masked text box used to create an inhouse Fips code, the first 2 characters are the state abbreviation then 3 numbers. With the format on the mtb set to LL-000, i don't need to worry about the numbers. I am trying to see if a string contains the 2 characters I need from an array, but it isn't working the way I thought it would.
Dim toUpperCase As String = mtbFipsCodeTab.Text.Trim().ToUpper()
mtbFipsCodeTab.Text = toUpperCase
Dim fipsArray() As Char ={"AK", "AL", "AR", "AZ", "CA", "CO", "CT", "DC", "DE", "FL", "GA", _
"HI", "IA", "ID", "IL", "IN", "KS", "KY", "LA", "MA", "MD", "ME",
[Code]...
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Feb 13, 2011
what I have to do is a magicbox, i need to put 9 numbers in 9 text boxes, and verify that they r not the same, im doing it trough the TextChanged event. i do have some code, but is incomplete... and doesn't really work
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
TextBox1.TextChanged,
TextBox2.TextChanged,
TextBox2.TextChanged,
[code]...
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Apr 13, 2011
I'm making a custom control suited for handling passwords. I have created a control that inherits from a text box and I have implemented a lot of things so far. But what i want to do now is create a system so that when a user types It will display his last character typed for a X amount of time.Is there a way to turn only selected characters into password characters and still be able to get the password text from the Text property ?
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Oct 2, 2011
My problem is that the username and password is NOT case sensitive. How do I do that?[code]
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Aug 24, 2011
I need to go through the column headers and look for specific text to locate & verify which column contains the data I want.
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Aug 4, 2009
I know that the topic is kind of weird, but I will explain that here. I am reading text from a text box and inserting that into a listbox. I am wanting to read what the user inputs into the text box and add a character between each character they type. Here is what im wanting to do written out[code]...
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Dec 10, 2009
Using Excel Automation classes I am seeking to save an Excel file as a delimited text file. The examples given in the MSDN library refer to versions older than Express 2008 with (apparently) different syntax options for FileFormat.Based on the snippet shown, I get a COM exception error (800A03EC). Other variations produce the same error.
Am I improperly applying the Automation features?
Imports System.IO
Imports Microsoft.Office.Interop
[code]....
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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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Feb 7, 2009
is it possible to make first 60 characters in a rich text box a different color than the remaining text?
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Jan 18, 2012
I had a weird series of errors involving e.Graphics.DrawString() when painting a panel.I am using a barcode font [Code 128] with a library that converts text to the proper format for Barcode readers.That's fine, however, when I draw it to the panel, that's where things stop being fine:But, here's where things get funky. When I put it into a TextBox instead of drawing it via Graphics.DrawString(), everything is peachy:In fact, the TextBox one looks much better than the Graphics.DrawString() one! Am I doing something wrong?[code]
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Jan 26, 2012
i trying "Removing the first 3 characters of text box's text".
i tried this
TextBox3.Text.Remove(3)
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Dec 29, 2009
If TextBox1.Text.Length < 9 Then it have 1 charakter and it work i need that when the text is more then 9 charakters then it work.
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Feb 10, 2010
For example I only the second character in each line to be an x, while the 3nd to 10th character must be a hex digit.At the moment I use a Select Case, then check the position of the caret (using textbox.selectionstart) and see if the key being pressed is a "legal" character.Is there a better way of doing this as it slows down on large amounts of text.
This is the code I have at the moment:
Select Case TextBox1.SelectionStart
Case TextBox1.GetFirstCharIndexOfCurrentLine + 1
[code]......
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Mar 14, 2010
I need a simple method of counting all characters in a text box and when a button is clicked a message must display if the amount of characters has exceeded 25.
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Feb 23, 2011
Possibly a simple question, but I want to be able to "do nothing" if a value in a text box is less then 3 characters[code]...
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Feb 19, 2011
write a vb script which filtersout characters from a string
example input string is The.Quick.Red.Fox.Jumped.Over.The.Fence
and illegal characters are 'the' '.' 'Red' 'quick'
the output should be quick fox over fence
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Oct 8, 2011
I am sending SNMP SystemName query to local host and in the output i m getting little square characters instead of the specific system name..
Imports System.Text
Class Form1
Dim commlength As Integer, miblength As Integer, datatype As Integer, datalength As Integer, datastart As Integer
[Code].....
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Nov 29, 2010
I have a string of text i captured within AutoCAD (0.000000, 0.000000, 0.000000) wich is saved to a text based file named position.txt.as you probably have gatherd with a file name such as position.txt the text could be composed of any random number combination eg: (5.745379, 0.846290, 150.6459046).However for it to be of any use to me I need the captured string to exist without spaces or brackets how can i achiev this in VB.net?
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Apr 13, 2012
how count textbox only this symbol # example:spider#spider#spider there is two hash symbols textbox count=2 like that i want to know code.
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Aug 15, 2011
i wanted to restrict my text box to have only 10 characters.I have used the following code
[Code]...
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Aug 22, 2010
How do I have a RichTextBox text between two characters such as < and > select? [URL]
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Feb 17, 2011
I need to trim the last for characters off in a text box. These characters are either .jpg, .bmp, or .gif.
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Jun 25, 2012
In VB.NET, I want to allow typing of non English Characters (For example, Russian, Turkish) in text box. How can I achieve this? Please let me know.
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Feb 24, 2012
I need to delete some characters in a line from a text file.
How can do this using forms?
for example I have
1.pencil hbewe wqeqwe
2.pencil 2bq
wqweqeqw
3.eraser eqweqw eqweqw
I want to keep only the
1. pencil
2.pencil
3.eraser
in the file. How to do that?
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Jan 27, 2010
I have a series of text boxes on my form, and my client wants me to filter out characters that aren't allowed, for example in the name field you cannot have symbols or numbers.
Now, he wants it so when you try and put in a special character it simply will not get entered into the text box. I know the logistics to this, but I'm not sure how I would go about coding it.
Basically what needs to happen is when the user types in characters like $, ^, 5, * etc, a function needs to recognise this and stop them from being entered into the textbox, whether it means deleting them as soon as they go in or interrupting the action altogether.
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Oct 27, 2009
I am trying to automate the removal of lines in a text box with no characters or numbers. I have the following code, but it is not working.
Code:
Private Sub RemoveBlankToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RemoveBlankToolStripMenuItem.Click
Dim tmp() As String = RTB_01.Text.Split(CChar(vbNewLine))
[code]....
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Feb 1, 2011
Removing the first 8 characters from a text string. How can I do it?
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Sep 24, 2009
I have a requirement of storing the following lines in a text file using VB.Net
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE scenario SYSTEM "anup.dtd">
I am unable to add the entire line enclosing it between " and ". I have used the
[code].....
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