Find Hex Symbol/Character In A String?
Jun 18, 2012
I have a string of text being sent through a serial port to a text box (Text1.Text). The string has some symbols in in which I am assuming are Hex values. The hex values are Hex(1), Hex(4), Hex(12), and Hex(17). What I need to do is find the position of these hex symbols in the string of text so that I can split or grab the data after the specific hex symbol. I am not able to use substring or indexof or instr ... or at least I am not using it correctly to find the appropriate symbol.I was thinking if I need to iterate through the string character by character and grab each symbol or text and get their value??? If it is one of the hex symbols, then get the index number (or position).
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Apr 20, 2010
I have an array like this:
Dim t1 as string=Textbox1.Text
Dim invalid as string()={";",".","""," ","'"}
I want to check that if a character in my array is in the text box then a message appear.
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Feb 24, 2010
How do I find last but one character in a vbstring
for e.g. In the string V1245-12V0 I want to return V
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Mar 29, 2010
I how do I find the last but one character in a string in VB.net.for e.g. I have a string Dim strTicket as string="56789-091F0"I want the value "F"
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May 13, 2010
I have an array like this:
[code...]
I want to check that if a character in my array is in the text box then a message appear.
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Aug 25, 2009
How do I check to see if the first character of a string is a number in VB.NET? I know that the Java way of doing it is:
char c = string.charAt(0);
isDigit = (c >= '0' && c <= '9');
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Nov 13, 2011
I need to write a function to find the first non-repeating character in a string in VB.NET. Does the code below look ok?
Module Module2
Sub Main()
' Unit test
[code]....
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Apr 5, 2012
I want code for RichTextBox when I write text it make space automatically before and after some character like Spacial symbol example , I write in RichTextBox this statement :
array()={1,2,3,4}
when I press ENTER this statement change to :
array ( ) = { 1,2,3,4 }
make space between spacial symbol and other character automatically
How I do that In VB.NET 2008?
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Nov 25, 2010
I am writing sample code for Date conversion using VB.net.Problem i am facing that it is prefixing and suffixing with hash(#) symbol.ex : #2010-12-12#.How to remove # symbol so that i can only date.
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Feb 15, 2011
I have lines of text that contain "degree symbols" (ASCII(248)). I want to replace those symbols with an alphabet character (Z).I am changing the line of text into a charArray,iterating through one character at a time. How do I define the ASCII(248) in code to replace each occurence with a Z? Something like string.Replace(ASCII(248), "Z") would be nice, but that doesn't seem to work too well.
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Dec 12, 2010
[Code]...
For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.
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Feb 17, 2011
I am writing a hangman type game and I am displaying the word to the user in a label as all *'s, but I cannot figure out how to have just one of the *'s changed in the label to the correct letter when the user inputs the correct letter into the text box and clicks the check letter button.Everything else in the program works perfectly, except for this part.[code]When I use the .Replace it changes all of the *'s to the correct selected letter.
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Aug 25, 2011
I'm outputting a Double that can be either (+) or negative (-). If the number is a negative the symbol (-) is included automatically, is there a way to do this for positive numbers as well?
The only (horrible) way I can do this is :
If MyNumber <= 0 then
string.Format("{0:0.00}", MyNumber)
Else
string.Format("+{0:0.00}", MyNumber)
End If
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Feb 16, 2012
the coding is to 'Get input string and put its character into List, and replace the character with other.'but having problem putting each character into List and also replacing it,[code]
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Jun 13, 2010
I've been working with the substring command and after coding up all the things I needed it to do, I saw a post on here where the "For Each" statement was used basically to do the same thing.Lets say we just want to take a string apart one character at a time and add each character to a label. Which would be more efficient?I made a cheap example to show ...
Code:
ABinary = "0110 1100 0001 1011"
For x = 0 To Len(ABinary) - 1
[code].....
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Sep 22, 2009
I have read the file into the stream and I just want to know how to find the frequencies of each character, two characters, three characters and so on
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Oct 31, 2011
I am trying to develop a HANGMAN game and i need to implement a button where the user can click on it to "buy" letters. So, i designated 2 text boxes (one visible containing stars and another one not visible containing the word that should be guessed), and i wrote the following piece of code so that once the user presses the button any of the stars will turn to the correct letter. My question is, i found the index of "*" and removed it, and now i want to insert the corresponding char with this index (WordInLetters). How can i find what char is at index "index" in vb.net?
Private Sub picBuyLetters_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles picBuyLetters.Click
Dim index As Integer = txtWordinStars.Text.IndexOf("*")
[Code].....
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Jun 6, 2011
Is it possible that after you find a string, backup until you find a specific character and copy it?For example, I am looking for "bread". The text is milk8andbread. Would it be possible to start at bread, back up until eight, and just copy "andbread"?
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Jul 17, 2009
I am using a simple regular expression (in C#) to find a whole word within a block of text.
The word may appear at the beginning, end or in the middle of a the text or sentence with in the text.
The expression I have been using word has been working fine however if the word included a special character (that has been escaped) it no longer works. The boundary is essential so that we do not pick up words such as vb.net as a match for .net.[code]...
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Dec 24, 2011
I need to convert a string array into a very long string with following requirement:
can not using any character escaping can not using XML can not using single character as separator (e.g. comma or space as separator)
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Sep 2, 2009
I'm looking to use a RegularExpress to find a specific pattern for character within a sentence.I'm look to find a any Word that start with '_', that contain only upper case character with number and with like
'_ABCF'
'_EEE1'
But not
'ABC_DE'
until now I've found "^_([A-Z]|[0-9])*", but this pattern do not seam to work within a complete sentence.
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Dec 21, 2011
Does VB have an equivalent to the @ symbol in C# to quickly and efficiently escape a SQL command line string?
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Jan 22, 2010
I want split a gridview row on an html tag. How can i do this preferably in C#??.row.cells[1].Text.Split("htmltag")
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Oct 6, 2011
Using VB.Net & SQL Server 2005[code]...
I want to take a first character from the string (s)
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Mar 22, 2011
i tried to read html contents by striping html tags in a string.when i try to print that string i got - character. how to remove this character?
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Oct 7, 2009
How do I add a space between every character in a string of text?For example:Change abcdefg"
To "a b c d e f g"I have two text boxes on my form, one for input, the other for output of the re-formatted string.
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Dec 17, 2010
I would like to know how i can count the character from a string.dim mystring as string = "myfilename_employee--2010-11-23-45-00--empid200"i need to see if this string have "--" two if it is less or more than two i need to alert to the user.
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Mar 5, 2009
I have been making a VB app that adds two text boxes together. This all adds up fine but I was wondering if there was any code to be able to turn the answer into a value such as 10.54 instead of 10.54653
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Nov 19, 2008
I have been making a VB app that adds two text boxes together. This all adds up fine but I was wondering if there was any code to be able to turn the answer into a value such as 10.54 instead of 10.54653Basically turning the answer into a money value?
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Jul 11, 2010
i want to compare each character is string with the pattern and if any character matches it should give error.. eg, i have "ABCDEF" as patern to matched with.
and "OULJYSA" to be macthed with the patern, as u see A is common, so in that case it should display msgbox("match found") is there any way to do it? i did it in php using regex and preg_match()
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