Find Position Of First Occurrence Of A Substring In A String?
May 31, 2009I wan't a method with which to find a string within another string. It should return the position of the first occurrence of the substring. (In VB 2008 !)
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Find The First Occurrence Of A Certain Word's Position In A Textbo?
Nov 15, 2011I need to find the first occurrence of a certain word's position in a textbox, on how to do this? Once I find out how I can get the position of the word i am searching for I can then pull the data I need from the textbox. I am using visual studio 2010 / visual basic.Since I have no clue where to start on this code, I will post what code i will be using to get rid of the data i don't need from the textbox.
Dim s As String = TextBox1.Text TextBox1.Text = (TextBox1.Text.Remove(450))i figure I can do this in a few steps to bring the searched info out of the textbox. I am open to other ideas on how to gather my data from the file or textbox. Here is what I have to do: Pull all of the players names from a replay file and put them in separate text boxes or even a listbox.
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How To Find Next Occurrence Of A String
Oct 18, 2011How to extract date & time for the string: "28 Oct 2011 7:00 pm ".
I used instrRev find first space, but how to find the next occurence blank space.
Find Multiple Occurrence In Given String In .net?
Jan 16, 2010How i can find multiple occurence in given string in vb.net For e.g my string is two times : 1234567
1234567,Desction,1.32
1234555,Desction,2.30
1234556,Desction,2.30
1234557,Desction,2.30
1234567,Desction,1.32
I want to put this two rows into a Dropdown Menu which is on my Form?
Read The Bytes Then Substring From 0 To First Occurrence Of 0x00 In .net?
Aug 14, 2011i tried to get the string from binary file by using this code..
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Find A Substring In An ArrayList, StringCollection Or List(Of String)
Jun 7, 2010I've got some code that creates a list of AD groups that the user is a member of, with the intention of saying 'if user is a member of GroupX then allow admin access, if not allow basic access'.
I was using a StringCollection to store this list of Groups, and intended to use the Contains method to test for membership of my admin group, but the problem is that this method only compares the full string - but my AD groups values are formatted as cn=GroupX, etc....
I want to be easily able to determine if a particular substring (i.e. 'GroupX') appears in the list of groups. I could always iterate through the groups check each for a substring representing my AD group name, but I'm more interested in finding out if there is a 'better' way.
Clearly there are a number of repositories for the list of Groups, and it appears that Generics (List(Of String)) are more commonly preferred (which I may well implement anyway) but there is no in-built means of checking for a substring using this method either.
I've settled on using a List(Of), and I've borrowed from Dan's code to iterate through the list.
Make A Regular Expression To Find A Substring Within A String?
Nov 20, 2009How do I make a regular expression to find a substring within a string that looks like: |sdrt446-7fdfs23| ? The number of characters and types change. So I need whatever in within the | |.
View 3 RepliesC# - Prepend A Substring If The Source String Does Not Begin With The Same Substring?
Oct 10, 2011I'm trying to create a valid RegEx replacement pattern for correctly formatting specific .XML file names. Specifically, if a file name does not begin with a prefix, let's say, ACE_. If the XML file name and extension does not begin with ACE_, prepend the string ACE_ to the file name.For example, if my input source string is the following:
Widgets.xml
I would like to execute a single RegEx Replacement that would result in the string being:
ACE_Widgets.xml.
Conversely, if the string already begins with ACE_, I would like it to remain unchanged. Also,how can I include the pattern ".xml" to ensure that the string pattern for the file name and extension ends with ".xml" in the same matching pattern for the RegEx Replacement pattern? As for the match, I have some luck with the following:
^ACE_{1}[dD]+
Which indicates there is a match for the pattern if the input string is ACE_Widgets.xml and no match if the string is Widgets.xml
The RegEx pattern would suffice, but if you need to know the language in which I'd like to use the replacement pattern is in .NET 4.0 in either C# or VB.NET.
The following posting is close to what Im looking for, but with the inclusion of the *ix directory path prefix, and the use of preg_replace() in PHP, I'm having a bit of a struggle getting it to work with what I need to do:
Regular Expression: How to replace a string that does NOT start with something?
C# - Find The Position Or Location Of String In Given Document?
Feb 26, 2010How to find the position or location of string in given document.I have one word document and i want to store all its words and word positions in database so thats why i need to find the position of the words.
how can i find position or location of word or string in given document.
i intend to use vb.net or c# for and .doc documents
Find Function Does Not Find Last Occurrence
Dec 12, 2009I have a rich text box with the following text in it:
word word
I am finding the endings of the word, that is, the string "rd". The following code finds the first occurance, but then fails to find the last occurance, and the variable "indexToText " changes to -1.After the first search, the debugger shows the startLocation at character position 4, so it is not past the second occurance but still will not find it.
indexToText = FrmMain.RichTextBoxPrintCtrl1.Find(searchValue, _
startLocation, eof, RichTextBoxFinds.None)
If I change the text to:
word word word
It then finds the first two occurrences and fails to find the last occurrence.No matter how many words I add, it always fails to find the last occurrence.
Xml - Find The String Position (index) From A XPath Statement?
May 7, 2009I'm looking for the actual index position in a given source string.I have the following string
"<a>
<b>zyx</b>
<b>wvu</b>
[code]....
I'm loading that string into a .NET XmlDocument object. Carriage Returns and Line Fees may be a factor here.
Dim xmlSearchText As New XmlDocument()
xmlSearchText.LoadXml(SearchTextBox.Text)
Dim selectedNode As XmlNode = xmlSearchText.SelectSingleNode(txtSearch.Text)
The following XPath Statement could be used to find the 3rd node:
a/b[.='tsr']
However, I need it to return a string index of 23 rather than the ordinal position of 3.
Replacing Nth Occurrence Of String
Apr 17, 2012This should be fairly simple but i'm having one of those days, can any1 advise me as to how to replace the first and third occurance of a character within a string, i have looked at replace but that cannot work as the string could be of different lengths, all i want to do is replace the first and third occurance?
View 2 RepliesString.Replace Only One Occurrence?
Aug 30, 2011Im working on a program for my work and it is starting to get pretty in depth. Is there any way to replace just one occurence of a string. I tried this:
fileChanged = fileChanged.Remove(indexOfFeed, FeedLineBreak).Insert(indexOfFeed, NewFeed)
VS 2010 Taking Out Every Similar Occurrence In A String
May 7, 2012I have my program set up to download a web page with a webclient. Normally, I could just use .Substring, but there are about 25 things I need to pluck out of this page, and .Substring, or at least the way I have it set up, takes the first occurrence. The good news is, they are all URLs; they are all similar too.
Each URL is as follows: [URL]
Now, of course, this URL is just made up, but each URL starts with [URL] and ends with 'video'.
How can I hook this up so that it scans the entire page (contained in a string, read from a StreamReader connected to a WebClient), finds each URL, and then adds it to a listview?
Find A Substring Within A Stringbuilder?
Jan 14, 2007I want to keep away from string object. I have a stringbuilder object, and I want to know if it contains 'Firefox'.
View 6 RepliesTrying To Find Substring Efficiently
Jan 5, 2011It seems to work fine for a small text file but when I use files larger than 100MB it does not give me an accurate count.The program is pretty simple. It should return the number of occurences of a substring from within a text file. I look for a match to the first character of the substring and if found then my code should test to see if the whole substring exists.I have run several tests but for some reason I am not getting an accurate result. I used the windowsupdate.log file. My code trturned 34596 hits but when I used MS Word to find the number of occurences it returned 50096 [code]
View 3 RepliesLocate The Last Occurrence Of String In A String?
Aug 5, 2011Is there a function which would search for the last occurrence of a certain substring and return the index of it?
For example, if I want to search for the last occurrence of the char '' in a file path 'C:Program FilesMicrosoft'.
How To Find The Space Using Substring To Display Initials
Jan 27, 2012The part of the program I'm trying to write is supposed to take the users input, which is their name, and in a listbox spit out their initials. I have so far:
Dim initials As String
Dim indexspace As Integer
initials = name.Substring(0, 1)
indexspace = name.IndexOf(" ")
lstInvoice.Items.Add(String.Format(strFormat, "Invoice ID", initials & space))
When I run the program, I can get the first initial to pop up, but I am not certain how to get the second to pop up.
Getting String.substring(N) Not To Choke When N > String.length
Mar 10, 2010I'm writing some code that takes a report from the mainframe and converts it to a spreadsheet. They can't edit the code on the MF to give me a delimited file, so I'm stuck dealing with it as fixed width. It's working okay now, but I need to get it more stable before I release it for testing. My problem is that in any given line of data, say it could have three columns of numbers, each five chars wide at positions 10, 16, and 22. If on this one particular row, there's no data for the last two cols, it won't be padded with spaces; rather, the length of the string will be only 14. So, I can't just blindly have
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Extract Certain Substring From String In VB 6.0
Sep 8, 2009This is a tricky situation. I want to extract a certain substring from the strings given below, using VB 6.0. I process each string (row) in a for loop one by one.
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IDE :: Extract A Substring From The Given String?
Aug 25, 2009got a string "Douglas". how do i extract a substring from the given string? how do i add a character or string in the middle of the word?
View 2 RepliesTake Spaces In A String Using SubString?
Jan 18, 2010Dim strValue as String=""
Dim strOutputValue as String=""
strValue ="One"
strOutputValue = "One+(7 Spaces here) "
strValue is changing dynamically that is fixed 10 characters. but i need Out is
MsgBox("Total characters " &strOutputValue.Length)
[2008] Richtextbox Substring - Select A Substring With 2 Criteria?
Feb 3, 2009How will I select a substring with 2 criteria? I have a Richtextbox where I select a number after a : with this code; For Each line As String In Richtextbox1.Lines Dim equalsPos As Integer = line.IndexOf(":") + 1 txtFound.AppendText(line.Substring(equalsPos, line.Length - equalsPos)) Next This is working ok, but the whole line.length is appended for number2. The line ex. Some text:my number some text-my number2. I want my number appended to txtFound, and my number2 appended to txtFound2. With my code only number2 can be appended correct.
View 4 RepliesString Expression Containing Substring To Replace?
Sep 13, 2011from the Help in VS 2008: Replace: Returns a string in which a specified substring has been replaced with another substring a specified number of times.
Expression
Required. String expression containing substring to replace.
Find
Required. Substring being searched for.
Replacement
Required. Replacement substring.
Start
Optional. Position within Expression where substring search is to begin. If omitted, 1 is assumed.Count Optional. Number of substring substitutions to perform. If omitted, the default value is 1, which means "make all possible substitutions."
Compare Optional. Numeric value indicating the kind of comparison to use when evaluating substrings. See Settings for values.
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Parse Variables String Value To Retrieve A Substring?
Mar 16, 2011i am retrieving a iMAGE Extension variable string. for example: test.case-function.two.jpg and want to return the end '.JPG' portion only. so i can add to another variable value. Note the .JPG substring could be other Extension types such as PJPEG ect
View 1 RepliesPre-check A String For A Certain Number Of Instances Of A Substring?
Oct 19, 2010Is there something I am missing to pre-check a string for a certain number of instances of a substring? Example.
"I am a test string, I will be searching this string later. I will be checking for every instance of the letter "i" and return the number of instances of that letter."
If I wanted to return an int for how many times i occurs in that string.
Retrieve All Possible Substring Matches With Characters From A String?
Dec 16, 2009Basically I want to retrieve all possible substring matches with n characters from a string, Here's my initial code but it only returns 2 matches.[code]...
View 3 RepliesSearch An Array To Select First Substring Containing Specific String?
Feb 21, 2010I need to create a code that searches an array of movie titles. When the user enters a specific string, the first movie title that contains that string is displayed. For example, entering "he" would display Sherlock Holmes as opposed to the Blind Side. I don't know how to create a code that reads a string that the user enters.[code]...
View 2 RepliesSetting String Length Limit Then Either Substring Or Space Filled
Sep 15, 2011I'm creating a file thats need to be in this format url... I need to be able to set the limit of the string length for certain fields.Is there an easy way to set the limit of the field so that if the string was larger then the limit then just take the substring and if smaller would add extra spaces?I was able to accomplish something similar to this with integers by just using .toString("00000").
View 3 RepliesFind The X And Y Position Of A Datagrid Cell?
Apr 24, 2010How can I find the X and Y position of a datagrid cell? I can provide the row and cell number if needed.
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