VS 2008 Searching A Large String?
Jun 27, 2009
I haven't programmed for some time, so I'm a little rusty Basically I'm storing HTML within a variable, and I need to count the amount of times a specific element appears e.g. <h3 class=r> for now.
I thought of using a for each loop, and passing the string above into the parentheses of the loop (using a variable ofc) however for many reason's, I don't think this has a chance of working (won't bother explaining why, as I assume you can guess). Then thought of using the .Contains method of the string class, but I simply can't think of how to use it with what I'm trying to do.
View 2 Replies
ADVERTISEMENT
Mar 12, 2011
I am trying to develop an application that will let me do the following
1) Be able to search to large binary files for a specific byte array (header) and to continue searching for another byte array (footer). Then i want it to copy the section of the binary file between these 2 locations to a specified file. Then the program is to continue searching for any other header/footers An example would be search a large file and carving out the jpgs it finds etc. This routine would have to be able to handle raw images of 20gb or more if needed.
View 10 Replies
Mar 27, 2012
I have a requirement to search large piles of text for keywords
The "keywords" are known in advance - but the number is variable.
The text is large - I've had 50000 byte strings in tests already...
View 22 Replies
Jul 12, 2011
My app is a Bible Reader. At load up I can choose Genesis Ch1 and its entirety pops into a rtb. I enter a word to search for like 'God' and hit the SEARCH button. The results I get are initially what I want. I get the verse 1:1 In the beginning God created the heaven and the earth. But then the app replaces the script with other words containing God, but all jumbled up. Here is the code I am using: Private Sub ToolStripButton2Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton2Search.Click Dim stSearch As String stSearch = Me.ToolStripButton2Search.Text For Each Line As String In File.ReadAllLines(Path.Combine(Application.StartupPath, "Bible VersionsKJV 1611King James Version of the Holy Bible.txt")) If Line.Contains(Me.ToolStripTextBox1.Text) Then Me.RichTextBoxViewer.Text = (Line) End If Next LineBryn Ryver
View 2 Replies
Jan 17, 2010
how do you search a string for capital letters, is there a function I can use to return to me how many capital letters are in a string? I have tried searching this but as yet not stumbled across a function. Most functions I found converted lower case to upper case Etc. I thought InStr might be the one but still looking for information on that one. I did find something along the lines of .char.isupper but the textbox is .text A password 'rating' tool of sorts of which I use a counter so if I enter "STRing" in the textbox for example it will return a 3 add it to the counter and continue with the little algorithm which my rater uses to add up things such as numbers or special characters to get a final score and that indicates to the user how strong the password is.
View 2 Replies
Oct 24, 2010
How would I use FileStream.Read() to search for a string inside a file and then return the string's offset? (basically like a Hex editor)
View 12 Replies
Jun 28, 2010
Okay so i have a very large list of string (500 000 strings) i want to check the number of duplicate strings and maybe even isolate the duplicate strings if i can.
i cant find a fast method to do so :S
i tried using a string array (slower than list) takes ~15mins
i tried using list with the code below takes ~10 mins
that wont cut it :S i need something faster.
[Code]...
View 10 Replies
Dec 17, 2009
I have 2 groups, the information i get comes out as follows.
Dim group1 As String = "3 4 7 8 10"
Dim group2 As String = "0 1 2 5 9"
The placements are predetermined, so when the first perso
[code].....
View 1 Replies
Aug 21, 2009
I got this
If File.Contains(Searchwhat) Then
Countnr = Countnr + 1
VinBox.Items.Add(filename)[code]....
That code works great to search for one string, but how can i search for multiple strings in the file? Lets say that "Searchwhat" looks like "GFR,EPB,IKJ" and if the file i am searching in can find all that in the file it will add the filename to the Pathlistbox.
View 5 Replies
Mar 23, 2012
I have a problem when searching an XML string. The problem is that I can't get it to work. I have a big XML in a string, and I only need 2 values that are each in seperate elements. It is hard to explain so it's best I just show it.This is my XML: (sorry it's very long, but I want it to be complete so my question can be answered properly).
<transactions result="1">
<transaction raisewarning="false" result="1" location="temporary">
<header>
[code]....
For each <transaction> I need the value of <Number> that is in <Header> and the value of <invoicenumber> in <line (id=1)> ... I have colored the elements in my sentence the same as I colored them in my big XML?The number of <transaction>'s can vary for each XML (these are a webservice response).I've been looking for 2 days now, and I can't seem to grasp this XML stuff unfortunately.
View 6 Replies
Jan 6, 2012
I am tyring to search though a string, here is the string.
{"Title":"True Grit","Year":"1969","Rated":"G","Released":"11 Jun 1969","Genre":"Adventure, Western, Drama","Director":"Henry Hathaway","Writer":"Charles Portis, Marguerite Roberts","Actors":"John Wayne, Kim Darby, Glen Campbell, Jeremy Slate","Plot":"A drunken,
[code].....
View 21 Replies
Oct 6, 2009
provide Vb6 sample code to conert this value 2450258259404013568 to Hex as &h220110E7A7BE4000. while trying from win calc it's returning correct value as required.
View 1 Replies
Oct 28, 2009
lot_no = "lot123" s.indexof("lot123") does not return zero whereas s.indexof(lot_no) returns zero has anyone seen a problem like this? what does s contain? For Each s As String In split1
View 2 Replies
Aug 2, 2011
Okay so I have my array and I am trying to search it, is there a method for this
View 1 Replies
Oct 15, 2009
I know this has been answered before but I am having trouble with it still. I am trying to find if a textbox has an "x" as the first character. I am trying to use the left(string, 1) command as described in a couple other threads to just test the first character on the left but the only left function I can find relates to the left coordinates of the textbox.
View 3 Replies
Feb 3, 2012
I am trying to do a query on the registry for uninstallation of a program but dont know where to start.The structure would be like so:If {123-456-789} exisits in registry then run Msi.exe /x {123-456-789}therwise run
View 2 Replies
Dec 18, 2009
i'm searching the string in my applications ,the results display form is quite heavy so i thought before loding the form i want to show some search icon.how to do that?
View 9 Replies
Feb 29, 2012
I want to search for a specific string within a text file, however instead of hard coding these string values into the system is there any way I can have them within an external file such as a text file and have these values that are to be searched in there and then pull them from there?
View 2 Replies
Aug 10, 2011
I need to accum some data based on whether or not an SSN number appears in the data. I have it in a string, what I need to do is search for a numeric pattern within the string such as:I looked into regex a bit, but I don't have much time to read deep into it (my company needs the program this week) and it seems too complex to grasp in such a short time. What I've came across so far is:
If (rec.address1 Like "###-##-####")
but I don't know if this will filter it out of the string (it can appear with an address attached to it).
View 2 Replies
Feb 1, 2010
I'm sure but can't see the answer. Currently going through a string "DO While Not ts_IN.AtEndOfStream" looking for information. This includes then checking another string (while inside the first) for matching reference point for further data.
So within the first loop, I have a second loop "Do While Not ts_IN2.AtEndOfStream". And looping through that string searching for the reference point.
This works initially, but after awhile don't find anything because it is not going back to the start of ts_IN2 string each time loops on the first section.
View 4 Replies
Mar 22, 2011
It seems simple enough, but apparently I cant figure it out. Theres more to my actual problem, but once I figure out this concept then I can do the rest. I want to search a list for a given string, and if it matches, then print it out. If it doesnt match, then it moves to the next item in the list. If if doesnt find any matches, it says "no matches found".
[Code]...
View 1 Replies
Jun 26, 2009
I have a program which grabs the source code of a webpage and puts it into a string. I would now like to search the string for two values.
"video_id": "value 1 here"
"t": "value 2 here"
The problem, is that I don't know the position of the values, and I the values change depending on each webpage. All I know, is the text before the value, e.g. "video_id" and "t:"
Here is my code:
Dim videoid As String = TextBox1.Text.Trim
Dim wc As New System.Net.WebClient()
Dim result As String = wc.DownloadString(videoid)
View 7 Replies
May 4, 2010
I'm making a application that deals with word searches
You know, the grid of text from 2nd grade that you all know and love.
Example:
WWWWWHELLOWORLD WWWWWWW
WWWWWEE WWWWWWWWWWWWW
WWWWWL WL WWWWWWWWWWWW
[Code]....
There are three hello worlds in the text grid
1 Vertical 1 Horizontal 1 Diagonal
I want to highlight them all
Everything I've tried has failed except for highlighting horizontal.
View 1 Replies
Jul 6, 2010
Right now im using
If ListBox1.FindStringExact(TextBox2.Text) = "0" Then
Label2.Text = "yes"
GoTo procheck
[Code]....
and it searches the first item in the listbox correctly but nothing else. Im assuming im going to need to loop through the listbox somehow?
View 6 Replies
May 5, 2010
VS2008
VB.net
I have the following simple code for searching for a text string within a folder and have several questions:
Dim searchFolder As String = "C:BakerOrders estOrders"
Dim files As ReadOnlyCollection(Of String)
files = My.Computer.FileSystem.FindInFiles(searchFolder, "NEXT DAY PM", True,
[Code].....
The folder will contain up to 1,000 text files (at any point) at 20kb to 50kb each. The scan should occur every 5 sec with ~200 new files and (-) ~200 exiting files during this period.
Questions: The previous code only catch files from 1 text string. Is there a way of doing one search and returning the files which contain any of the 3 strings? Is there a more effective way of achieving this? Is there a simple / effective way of searching each file only one time by keep track of previous results while searching only the 200 new additions each scan?
View 2 Replies
Oct 15, 2010
This is way out of my league, I can manipulate strings a bit but i'm 1000% stuck how to approach this.
I get page source to a textbox1.text, In the source in contains multiple lines of
window.SC.bufferTracks.push({"id":5528782,"uid":"27XQR7Tk19XD","user":{"username":"Monosurround","permalink":"monosurround"},"uri":"/monosurround/music-to-drive-tanks-to-granite-eyes-monosurround-
[Code]....
Once got, need to add it self to a array then carry on looking for more instances of that type of line
I know this is a lot to ask, but iv spent the last hour googling and comes up with basic string manipulations
View 7 Replies
Apr 17, 2011
i am working on an assignment to search a value in datagridview column if value matched with input textbox then datagrid cursor should move to the cell having that searched vallue and if column has more than one searched values then cursor should move to next cell having that particular searched value and so on .e.g
----------
[code]....
suppose that if we search for value AROUT which is in cell nomber 3,5 and 7 when user hit the serch button first time then data grid cursor should move to the 3rd cell and when user again click search button then datagrid cursor should move to the 5th cell and when user click search button third time then datagrid cursor should move to the 7th cell i have tried many combination with FOR loop and IF condition but with following code i am able to search the string only once obviously if condition does not allow me to search a value more than once .the code is
for i as integer=1 to 90
If DataGridView1.CurrentCell.Value<>textbox1.text Then
DataGridView1.CurrentCell = DataGridView1.Item(0, i + 1)
End If
Next
View 2 Replies
Feb 1, 2010
I've got two text files. The first has got a list of certain keywords. Each one if these keywords are fed into a combobox. Now, when I choose one of the items from this combobox, I want to search the other textfile for the same keyword and read from that point to the next keyword. And then feed each line into a listbox. Perhaps I should use an INI-file for this purpose, doesn't really matter for me.
The textfiles have this structure;
Textfile1:
London
Oslo
New York
Hamburg
Amsterdam
The second textfile has this structure;
Textfile2:
'London'
Apples
Oranges
Pears
'Oslo'
Pasta
Salami
Monkeyballs
'New York'
Dada
Duda
Dadadish
Is this possible? The reason I want to do it this way is to create a fully dynamic system. One which relies fully on whatever information is stored in these textfiles. I'm gonna build pretty complex strings from these results later on. So far, I've got this to read the first file and add each line to the combobox:
Dim oReadMenuFunction as System.IO.StreamReader
oReadMenuFunction = IO.File.OpenText("textfile1.txt")
Do While oReadMenuFunction.Peek <> -1
Dim LineIn as String = oReadMenuFunction.ReadLine()
Combobox.Items.Add(LineIn)
Loop
View 2 Replies
May 5, 2011
I have a bunch of 10 digit integers that I'm passing in a URL. Something like: "4294965286", "2292964213". They will always be positive and always be 10 digits. I'd like to compress those integers into the smallest possible form that can still be used in in a URL (aka letters and numbers are perfectly fine) and then uncompress them later. I've looked at using gzipstream but it creates larger strings, not shorter.
View 4 Replies
Oct 5, 2009
I try to remove empty space from a large string, using replace(), and using regex.
the replace method:
replace
Do While (stripped.IndexOf(Space(2)) >= 0)
stripped = stripped.Replace(Space(2), " ")
Loop
and with regex using its replace with : "/ss+/" - regular expression.
but I am still stuck with empty strings such as :
temp ""String
these string have lengths ranging between 3 and 8, so I have tried to adapt the replace function with something like this:
replace 2
Do While (stripped.IndexOf(Space(4)) >= 0)
stripped = stripped.Replace(Space(4), Space(1))
Loop
View 7 Replies
