I have a string of characters, but I would like to have a string of hexdecimal characters where the hexadecimal characters are converted by turning the original characters into integers and then those integers into hexadecimal characters. How do I do that?
View 3 Repliesi have been trying to remove special characters. i am not able to remove many crlf in middile of the string.
View 3 RepliesI need to create a console program that allows you to enter a string, of which is then outputted in reverse.
Sample:
Input: Diewas
Output: saweiD
Apparently I need to find out about strings and will also need to use a loop.
Not sure if too many people know this, but the following line will cause an error:
GroupName.Substring(0, 3) = "jt_"
....if the length of GroupName is less than 3 characters. I always thought it would simply return whatever characters in GroupName, but no, it errors. I must be thinking of the old VB6 days.So, I now have to change the code to:
If (GroupName.Length > 2) Then
If (GroupName.Substring(0, 3) = "jt_") Then
Note that the two comparisons need to be on separate lines. If they are on the same line, such as:
If (GroupName.Length > 2) and (GroupName.Substring(0, 3) = "jt_") Then then the code will still fail as the length command is executed at the same time as the substring command- which will cause the error when the GroupName length is less than 3.Just thought that those of us not aware of this should be!
dp.SyntaxHighlighter.ClipboardSwf = '/dp.SyntaxHighlighter/Scripts/clipboard.swf'
dp.SyntaxHighlighter.HighlightAll('9844f9bfb55449e6a786fa62aaadfa20')
dp.SyntaxHighlighter.HighlightAll('f6d554fd98464bdba9159b319e51b381')
dp.SyntaxHighlighter.HighlightAll('93bf4ca63ad8447abdf084d8a9991e15')
How to correctly convert string containing upper ASCII characters to byte array besides looping through each character and filling the array using AscW(chr)?I know I can do something like:
Code:
Dim bSourceData As Byte() = System.Text.ASCIIEncoding.GetBytes(sourcedata)
But this only works for lower ascii characters (0-127).Instead of ASCIIEncoding I can specify encoding myself (System.Text.Encoding.Getencoding(encoding).GetBytes(sourcedata)). But I have to specify correct encoding in this case, otherwise most of special characters are converted to "?". What should I do if I don't know the encoding?
I may have a string for example potato in a vb.net application. I want to find all the occurrences of o and convert them to 0, so the desired out is: p0tat0.I know it can be done by the provided string operations but I need a regular expression in my scenario.
View 1 RepliesI am working on RSS feed. In Rssfeed <description> (string) tag suggest using approximately 300 characters and then showing continuation with [...] after a word break.
<description>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially [...]</description>
[Code]...
How we can do with a string by showing continuation with [...] after a word break?
I'm just wondering how to convert a string from a textbox into hexadecimal. I looked all over the internet and only found ways in c#. Does vb.net have the ability to do such a thing? If it can then I'd like to know how to convert string to hex and hex to string.
View 4 RepliesI have written a program that uses an array of the english alphabet and Morse code. I also built a form with a input box for the alphabetic information and an output box with the Morse Code. What i am trying to do is basically type a word like "Hi" in the input box and produce the Morse Code equivalent in the Morse Code output box. [Code] This works but only one letter at a time. Do i need to Parse the string of characters one at a time, and then run it through a loop like i have created?
View 6 RepliesI have a string like 0010000.abc. Is it possible to print just the first 3 characters of the string i.e 001?ajaind
View 1 Replieshow can i replace another hex value at the place that i marked with red colour using VB.NET?
example: i gonna change that '23' into '24'.. i'm just newbie about hex in VB.NET
i am working with serial communication in vb.i need to know how to get &h1 to be &ho1 to represent the byte o1 in hex or 0000 0001 in binary.i cant remeber how to parse the byte and represent it with two characters instead of one.
View 8 ReplieslswScriptreader =
New System.IO.StreamReader("test.txt", System.Text.Encoding.Default)
lswScriptwriter = File.AppendText("test1.txt")[code]....
Hex(D1) is my column Terminator and need to replace it with ",".
I have a program written in VB.NET and I have a textbox for the RFID tag (which is in ASCII format) and then convert it to a simple text format to be saved to my database. How can I convert ASCII to plain text to save to my database?
View 1 RepliesI.E. replace "http:adf.ly/random"to "adf DOT ly /random"..Removes http: and changes . to DOT and adds spaces.
View 3 RepliesI am trying to manipulate a string to get to a part of the string inside 2 specified characters. Getting anything inside the > and the space. string starting with: jk;fhdididlsls/"f>Dog (467838) fgdad
I am trying to get "Dog" out of this.
dim x as string
dim y as string
x="jk;fhdididlsls/"f>Dog (467838) fgdad"
y = x.Split(">" , " ")
MsgBox(y.Join(""))
It will somehow always error out: value of 1-dimension array of string cannot be converted to string
I have a barcode that once scanned returns a string 8 characters long.
Further along the program I have this line of [code]...
I want to be able to get the first x characters of a string
View 2 RepliesI have a string like this:
1a2b3c4d5e6f7g8h
And I need to rearrange it as follow:
a1b2c3d4e5f6g7h8
Do you understand what I mean? For each two characters, the numerical character swapping place with the following letter, i.e. from 1a change it to a1.how to rearrange the numerical characters and letters in the string? My string always has the said pattern, i.e. one integer then followed by a letter then followed by a integer then followed by a letter and so on.
How can I add space after every 4 characters to string that returned from a function? I know the returned value it is 8 or 12 or ...etc.
for example function myString will return the value of ABCDEF12XY1Z
How can i display in textbox1 as ABCD EF12 XY1Z
I have a string value (which is a hex value) that is displayed as so...F8 30 00 3D FC 13 F8 30 00 01 31 73 34 FE 34 DE F8 30 00 3D FC 13 F8 30 00 01 31 73 34 FE 34 DE F8 30 00 3D FC 13 F8 30 00 01 31 73 34 FE 34 DEThis continues on in this exact pattern. What I am trying to do is to get a " " inserted after the first 24 characters, and then after the next 24, delete a character and place an Enter or Return value. Then I would like another " " after the next 24, and then after 24 more, delete a character and place an Enter or Return value so on until the end of the string. The format would then look like this.[code]I know this is probably done with some type of array and loop, but I'm not even sure where to get started.
View 8 RepliesI've got a program that in a nutshell reads values from a SQL database and writes them to a tab-delimited text file.The issue is that some of the values in the database have special characters (TM, dash, ellipsis, etc.) When written to the text file, the formatting is lost and they come across as junk "â„¢ or â€" etc"
When the value is viewed in the immediate window, before it is written to the txt file, everything looks fine. My guess is that this is an issue of encoding. But, I'm not real sure how to proceed, where to look, or what to look for.Is this ASCII or UTF-8? If it's one of those how do I correct it before it's written to the text file.Here's how I build the text file (where feedStr is a StringBuilder)
objReader = New StreamWriter(filePath)
objReader.Write(feedStr)
objReader.Close()
character manipulation in a String.
How do you change characters in a particular string and set them to a particular value.
For eg. I want to change the third character of the string "hello" to Y = > i get "heYlo".
I tried using the Chars function but it says that the function is read only.
I am just a beginner in VB programming. What if I want to check if a certain subtext is present in a string? For example, what do I code if I want to check if the word "hello" is present in a particular string or not?
View 3 RepliesI am in a rather silly situation...suppose I have a text box in which I enter a line of text/characters/numbers...how would I be able to display the last two or first two (or may be middle two?) characters into another text box.
Example: I write "Hello World!" in the first text box and the program should display the first two characters from that text box, i.e. "he".
Ok, so I have a string called item. It's value is "Coffe`". When I try to get the number of caractors by using:
textcount = item.length
However it returns with the value "5". even though there is 6 caracters.
I need to return everything between the 2 dashes:
"xxx-12345-xxx"
Here's my conditions:
Sometimes the middle part may contain more than 5 characters, so it could look like this: "xxx-12345AB-xxx" Sometimes there's no second dash, so a string could look like this: "xxx-12345"
how I would find certain characters in a string.
View 4 RepliesI have a query to solve for which I have coded. But my code produces output only for those hardcoded values found in the text file. I have a text file which is given as the input to my code. The text file contains lines with "_DIA" , "_DIA_some number" etc. In this case I need to remove few letters from that field.
Eg: 1)if the name field contains 1234567_DIA_2.PRT, I need to remove "_DIA_2" from the name field and concatenate the .PRT with the number. 2)if the name field contains 1234567_DIA1.PRT, then remove "_DIA1" and concatenate. I need to store the number of characters removed and add so many number of blank spaces with the name field after the concatenation.
for the 1) case I need to concatenate and add 6 spaces with the name field. for the 2) case I need to concatenate and add 5 spaces with the name field.
I'm not sure how to find the number of characters from "_" to ".", underscore need to be considered in the counting and the dot(.) should not be taken into account.
Ok I am on the last part of this part of my project... If I have a strings like[code]...
I am having to parse address information out of a file... The parser works fine for addresses that do not contain a CR which means County Road. So I am thinking I can strip the address part out of the string I am passing into the parser by using something like.[code]...