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.
How 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.
How 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?
I 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 !)
View 2 RepliesI 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.
I 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.
[Code]...
This 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 RepliesIm 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)
I 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?
Is 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'.
i have a string "David John Roplay" i need to replace first occourance of the space " " into double space " "i have used String.Replace() but it is relplacing all the spaces.
View 3 RepliesI have a an application that opens a SQL connection and over the course of a few hours creates and disposes of tens of thousands of DataReader objects. You could look at it as just one big loop. As the time goes by, the memory usage steadily climbs until the application/system runs out of memory and crashes.
Psuedo code would look something like
SQLConnection.Connect
Do Until x =1000000
Create New DataReader
Use DataReader
Close DataReader
[Code] .....
Even though I dispose of the DataReader object when I am done with it, the memory usage keeps climbing. I found that every time I am finished with the DataReader I have to close the SQLConnection and dispose of it. When I do that it keeps the memory usage very low and the processor usage is barely noticeable. I would think I could just open the SQL connection once and close it when I am done.
Using VB.NET, Is there a way to do this RegEx call in 1 step... instead of 2-3? I'm trying to find the word "bingo", or whatever is between the START and END words, but then also inside the inner FISH and CAKES words. My final results should be just "bingo".
Dim s1 As String = "START (random string) FISH bingo CAKES (random string) END"
[Code]...
Dose anybody know how I can tally instances of a particular text occurrence within a txt file using VB.net. Better explanation if I use a textbox and type in a text how I can use VB.net to search a txt file for that piece of text and return the amount counted in another textbox or label.
View 2 Repliesthis is what I've got so far:
Dim find As String
Dim search
find = InputBox("Enter Search Text")
search = MyRichTextBoxEx1.Find(find)
[code].....
But how can i search for the next occurrence of the search?
Dim t As String = source
For Each m As System.Text.RegularExpressions.Match In System.Text.RegularExpressions.Regex.Matches(t, ">.*?<")
search = m.Value.Substring(1).Remove(m.Value.Length - 2)
If search = "" Or haku = " " And counter < 337 Then
[code]....
What you see here, is a code that picks everything written in between > and < markers from a source code on a website. What it returns is always a time stamp in between 00:00 and 23:59 and a string. Or almost always. There is a few instances where there are two times in a row and not every other, effectively breaking the system.Also, when this happens, the first time of the two has a "-" after it, i.e 18:00- What I've been trying to do, is making the program recognize when there is an extra character (the -), delete the extra character, and then jump over the next result in the search (the following time). This would completely resolve the problem.
The thing is, no matter how much I go through it in my head, I can't seem to think of a way to affect the NEXT result without screwing up the current result or all the following results. As you can see, my code is faulty. What it does now is an emergency method (as my teacher review of the code is coming up real soon) it jumps over the time with the extra character, and lists the following time. This however is not ultimately wanted, because in the bigger scheme of things, it displays the incorrect time for the incorrect string.
Search variable holds all the results of the regex search, for easier handling, and is used for checking for the extra character.Length6 variable is boolean for determining if the result had the "-" or not. The column ariable is to list the time and the string on the same line in the textbox.Jump is the variable that makes the code skip the conditioned result from the search.The counter variable, that might seem extra, is just for extra conditioning, its use is to prevent the first 337 instances of the search.
i tried to get the string from binary file by using this code..
[Code]...
have a list of 84000 words , and have some articles in these articles i want to replace first occurrence of each word i have in listbox e.g [code]but it used to replace the whole mytext i want to replace words in mytext and also it hang the system and very very slow and replace all occurrences.
View 3 RepliesA little background... I'm trying to build a spell checking form. I have this lovely library: [URL] and it seems to be working flawlessly.
The problem I have is trying to replace an entire word and only the first occurence of the word.
Example: Replace the first instance of "foo" with "bar" in the following string
"foo foo foobar" and get this "bar foo foobar"
I've been trying regular expressions with no luck. Here are the patterns I've tried compiling(these are obviously tied to variables in my program):
"(?<!foo)foo"
"(foo){1}"
I also tried the built in string.replace method with a count parameter, but I have no idea how I would make that match the entire word.
I was trying to do a simiple, fine a string start position, or a string, and it always returns 0
Dim My_Search_String As String
Dim My_Text As String
My_Search_String = "fsl fwb fcb"
[code].....
My app is a Reader for personal use. I have it setup By Books of the Bible and by Chapters and verses.
What I would like to be able to do, is to search for Pharaoh (any word) in a textbox, click the Search Button, and every occurrence of Pharaoh (not just the word, but the entire Verse: EX: Gen Ch7:14 Blah Blah Blah Pharaoh Blah Blah. Gen Ch9 :3 Blah Pharaoh Blah); to display inside a RTF or TextBox.
I need to count the number of:
[Code]...
Can Regular Expression be used of this purpose? It's okay if they're in separate function, but I need to somehow get the counts of each of the above.
I'm building an Outlook add-in in Visual Studio 2010, using VSTO with VB.net, to sync Outlook Calendar data with an internal, proprietary Calendar. Our users want to be able to open a recurring appointment in Outlook, send the Appointment details and have the internal calendar update with the recurring appointment details. I actually have code in place that works just fine for creating recurring appointments and single appointments. The problem is that I can see no difference (when viewing the AppointmentItem or RecurrenceItem members) between a single occurrence of the series being opened, or if the entire series has been opened; all the data is the same, all the functions have the same result. I can see there's the difference in menu bars, but I don't even see a way to detect that difference.
View 1 RepliesI am trying to find the best way to extract parts of a string within a string. Take the following line:
[Code]....
How can I say extract just "16" for the height field?
I am trying find a string in below string. url...by using url... How can I get Team Discussion word from it?
View 5 RepliesI have a list box with groups of people and is displayed as such:
Paul Mary John
Frank Steve Bill
Jacob Dan Spongebob
and so on...
If i use the code below i can find and auto highlight Paul, Frank, Jacob but never finds anyone after the first like Mary, or Bill.
Dim findperson As String
findperson = CStr(TextBox1.Text)
ListBox1.SelectedIndex = ListBox1.FindString(findperson)
Essentially it is for quick reference for people to find who will be in their groups.
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.
How can I find a string between two known strings like:
name=login value=12345 />
Now I need to get the string/the numbers between name=login value= and />
It's from a webpage so it has multiple lines.
I want to find a string in a collection of string i used this code..
Dim str As String = "Failed to Post Somment Sorry"
Dim fnd As String = "Sorry"
If InStr(fnd, str) = 1 Then
[Code].....
How do I find last but one character in a vbstring
for e.g. In the string V1245-12V0 I want to return V
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"