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?
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.
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?
I've created a button and textbox which allows me to do an openfiledialog and select multiple files. The problem is, after selecting multiple files, when I run the program it doesn't run through all files selected, just the first file. I know I'm missing an integral part of code here, but not sure what it is.
For testing purposes I've created similar code and output to a textbox shown below. I would expect that each file selected by multiselect would appear in the textbox provided.
Dim OFD As New OpenFileDialog
OFD.Title = "OFD"
OFD.InitialDirectory = "C:"
[Code]....
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'.
1. i added a datagrid at runtime on a form. i want to bind a datasource to the datagrid in a button's click event handler, but the datagrid doesn't seem to be visible anywhere else outside the form load event where it is declared. how can i find the datagrid control?
2. and another beginner question.. how to i declare a string that spans multipe lines? i tried with the + operator like in c#, but it doesn't work.
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've got an issue with a program I am writing. The specific issue is replacing characters in a parent string by finding, and matching, specific characters within it that are parsed from an external xml file. It's for a chat-like client.Here's the 2 classes I am using to pull the emote strings, titles, and id from external XML:
Imports System.Text.RegularExpressions
Imports System.Xml.Serialization
Public Class emote
[code].....
I have a bindingsource that is connected to a table where tho fields determine uniqueness. During a refresh I would like to return to the row that the user was on when he clicked the refresh button. BindingSource.find only supports one column in so far as i have been able to infer. So how doi do it. Altering the table is out of the question. Besides searching on multiple fields is a common event. Like for example first and lastname or perhaps company and journal number.
View 15 RepliesI have a facebook account that has around 1200 friend request. Obviously I dont wanna go through and click each one. So I figure I would make a App for it. So I have it working, but its going sooooo Slow....I have it, Clicking the first Confirm button then closing IE, Then opening it back up and clicking the next one. I know it would be alot faster if i could keep that instance of IE open and have it go through and click each Confirm Button but I cant figure out away to do it. If I put it in a loop, it will submit the first one, then when it loops for the second time it finds the first one again, and says its disabled. Any Idea of how I can get it to move on to the next Confirm button? Here is the code I got written so far.
View 1 RepliesIn a vb.net application I have a set of integers currently stored in multiple Arraylist (But this could be something different if required)
al1 = {1, 2, 3, 6, 7, 9}
al2 = {2, 3, 4, 9}
al3 = {2, 3, 19}
[code]....
I need to find all strings in given text file which would look like:
Hi thisisme Bye Bye
Hi thisisyou Bye Bye
Hi someone Bye Bye
so, i need the result to be:
thisisme
thisisyou
someone
also, there is all sorts of other text before this and after this (in source text file)now, i have this, which doesnt work quite well:
Public Function midReturn(ByVal first As String, ByVal last As String, ByVal total As String) As String
If last.Length < 1 Then
midReturn = total.Substring(total.IndexOf(first))
[code]....
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 attempting to make a text editor. I have a folder which contains hundreds of text files. I would like to search through all files simultaneously, for some text then replace the text with other text & save, & overwrite originals. I've got most of the basic structure done, but I've go no idea how to search for text in all files in a folder.
View 13 Replies