The user inputs a serial number in a form, the program searches a specified text file on the internet for that serial number, and if it is there then the program runs normally, but if not it exits. I already know how to do the trial part of this program and I know that this is not secure as someone could just hack it and find the text file and read the numbers, however this is for school and is not commercial. The only thing I need to know is how to search a text file for exact text that has been inputted by the user. I've been trawling the internet and I've heard of something called instr or something, but I'm not sure.
I'm new here, but have been in and out for a while. Past threads have been helping me along thus far.
I'm currently developing an app which essentially needs a way for me to search in a text box or file for a specific string, and extract the line on which that string appears on. It will be unique, and the syntax is the same on each line. It has basically 2 ID numbers, and is laid out like this: 123456|123456
So, I'd need to search for the first part before the |, and then get the line so I can get the bit after the |, which is the important bit for me.
I'm new to Visual Basic.net, I've had some experience with ye old visual basic however. I'm wanting to make a quiz app that reads the contents of a text file, with about 500 multi-choice questions in it. It is in the following format QUESTION NO: 1 This is the question, what is the answer?
A. This Answer B. Or this Answer C. Maybe this Answer D. Or this Answer Answer: D
QUESTION NO: 2 and so on. I would like it to display the question number in say...a textbox, along with the question and the multi-choice. And then depending on user input, says correct or incorrect.
I have two text files, the first text file has two columns separated by a space (" ") and the second text file only has one column.
The column 1 in text file 1 and text file 2 match albeit in different order, what I'm trying to achieve is for every field in column 1 text file 2 I want to search for column 1 in text file 1 and display the matching column 2 field in column 2 text file 2.
What I am doing is creating a simple login and register system. I am going to save the information of each user into a text or ".dat" format and have them placed into a folder called "accounts".The small problem that I have is the "Forgot Password" option. I can't think of how to search all the documents for the e-mail or the username.So basically I need to know if it is possible to do a small search for the e-mail through all the documents in the "accounts" folder.
-I know another option may be databases...but I don't completely know how to use these. -I have general knowledge of arrays
I am trying to set a program that save information to a file(store number, state and name. Then once user put store number and click display it shows the founded result in each box. like state in statebox and name in name box. This is my code so far
for the display button
Private Sub displayButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles displayButton.Click Dim file As String = ""
I have a text box setup to filter a datagrid. Work just fine, but if I search for something that is not there (empty results) it comes back with an error "Object reference not set to an instance of an object." on the bolded line. How to fix that error?
i had another question when i read a file like this: i need the program to search from the top of the text file and not where you stopped:
Dim FS As New FileStream("First_Player_Properties.txt", FileMode.Open, FileAccess.Read) Dim textfile As New StreamReader(FS) 'Create an instance of StreamReader to read from a file.
I'm working on the project , the project is to find specific word from text file then if it match find and return specific data from text file , i start to read the text file and search but i have some problem, i want if it match return the next line and the index of that line . How
so i have this data grid, which i wanna search , base on specific criteria from two or more text boxes; eg a user wants to search employees from karachi, so they enter karachi in the first text box. now they want to search employees from karachi whose status is permanent, so they enter permanent in the second text box, and the data grid shows employees from karachi whose status is permanent.
For search from ONE text box, i have used the following code :
Private Sub TextBox1_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.KeyUp If TextBox1.Enabled = True Then
[Code]....
im no champ at vb, i just started some 7 days ago for my computer project, so ill really need to be spoon fed the details :|
I am looking for a code snippit that searches the files in a specified directory for text that is inputed by the user then adds the files that contain that text to a list box
I hav 2 forms the first form has 5 textboxes and second form is only for searching and display the result so I would like a sample code to perform a search in text file for a word but also display the results but all the data is entered from form one
I have a whole bunch of files, which I would need to search for error codes and # of instances it occured. I tried ReadAllLines of File.IO but that just gives # of lines. How would we search for string within a file and count its instances?
Program to search through every text file in a directory even if the names of files are not known and to search through all of them for a particular word.
Trying to write an app to load a Text file and then search for substrings that contains some specific characters to compose a list. Tried first loading the text file into a StreamReader then search line by line for my substrings. Had to write a lot of code to identify my strings, but it worked ok. Then tried loading the text file into a RichTextBox then use RichTextBox.Find(......) to look for my substrings. The " .Find" property makes the code really simple, but using RichTextBox the app was really slow.
Using Stream the loop was completed in about 2 minutes and using RichTextBox in about 30 minutes! I will need to make a lot of searches and using RichTextBox is lots easier, but is too slow. Is there any way to perform search operations using Streams instead making a loop and go looking line by line??? Or what else would be a good solution to search for strings in a text file??
I got some code that im try to make search and text file and replace it. The code im using to replace it with is whatever the user entered in txtURL.text. Here is what i have
Dim strFile as String Dim result as String strFile = "C:\test.txt" oRead = IO.File.OpenText(strFile) result = Replace(oRead.ReadToEnd(), txtURL.text, "1F.php") oRead.Close()
Is this writing it back to the file also....I think that might be the problem, not sure..
i want to search "words with mark" in txt file.For example: i want to search: "t�m" in my txt file. but my code couldn't find that word, it could find a word "tam".[code]
I want to search a text file (*.txt extension) for a certain keyword or a part of it. And then let the found item be displayed in a listbox or something else. Now the more difficult part, how can I display the word in front of that found word ?
Example: I search for VBFORUMS in a file called test.txt I find this: VBFORUMS but in front of that is this: IDS_IDS_TXT_008912VBFORUMS
How can I then display the IDS_IDS_TXT_008912 on a label ?
I want to load a text file (a item master with 7 fields line by line) in windows CE 5.0 and search a item no. then display the record of this item no. from text file. how to search a record from a two-dimensional array, when matching, display the record.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim parser As IO.TextReader = System.IO.File.OpenText("C:\qstck.txt") Dim FileLines() As String = Split(parser.ReadToEnd(), vbCrLf)
The format I need is a group of numbers in a text file and it looks like this and it will always look like this:xxxx x xxxxxxxx xxxxxxxxx x xxxxxxxxxxx xxxx x
The problem is that it can be anywhere in a text file so I cannot search by a particular line.
How can I search for this type of string format in a text file?
So I am trying to create a Win App to make copying files using Robocopy easier and eventually other tasks. Basically what I have so far is a Button that calls the Sub Robcopy_EXE. There is a tab on the form with 100 check boxes, one for each terminal, that will be designated by the user and a check box to determine if you want a detailed report or not from Robocopy. I also have a text box for the user to input the first 3 octets of the site IP Address. The check boxes and Input field are used to create string "Terminal_input" which is what runs Robocopy in CMD. Robocopy logs its progress to a text file that I have labeled "Status.txt". That is as far as I have gotten.
currently working through a project using VB 2008 windows form application and having a little trouble with the code. I need to read data from a text file into an array of a structure, displayed in a list box and have a number of searches conducted on the data and these results displayed on the form. The test data is of rainfall across a number of areas and is in the format:
I have a folder containing about 100 word documents (.docx format)... I want to make a search application for them. How to read a document using the openxml method... but my query is how to search for text, shall I load each one and carry out the search in the textbox?
