I would like to know how can i list the contents of a rar file.E.G - suppose i have a RAR file named test1.rar. This RAR file as two files inside( File1.bak and file2.txt)What i want is a funcion that can retrieve to me the file name of a text file inside the rar.
View 3 Repliesanyone know the solution? i need to print out the content of a listbox.
View 6 RepliesI'm currently in a "course" (mostly self taught with some guidance) and I'm hitting a wall in one of the tests.
The idea is to read out a text file, loop trough the list and replace the content if the item from the text file is found in the list. I've got it fixed up until the replace part:
Dim SplitFirstCase(3), SplitSecondCase(3) As String
Try
FileOpen(1, "orders.txt", OpenMode.Input)
[Code]....
The loop works, but it seems that splitting the selected object isn't allowed. Value 0 is the article number, and based on wether the value returns or not the selected object needs to be replaced.
I have the following multithreading function to implement threads fetching from a list of urls to parse content. The code was suggested by a user and I just want to know if this is an efficient way of implementing what I need to do. I am running the code now and getting errors on all functions that worked fine doing single thread.for example now for the list that I use to check visited urls; I am getting the 'argumentoutofrangeexception - capacity was less than the current size'/Does everything now need to be synchronized?
Dim startwatch As New Stopwatch
Dim elapsedTime As Long = 0
Dim urlCompleteList As String = String.Empty
[code]...
I don't know whether it is simple or not because i am new to programming. my requirement is : In my vb.net winform application, the filenames of the files present in "D:Project" willbe displayed in DataGridView1 control. Now I want to load these files one after another into memory stream buffer and add the headers("ID","Name","Class") to the content in the file. Then I want to save these files in "C:" with "_de" as suufix to the filename i.e.,sample_de.csv.
View 1 RepliesI have to generate an XML file from several database tables. I could use the WriteXml method of the DataSet to do it, but the database tables are really huge and I can't add all those tables in the DataSet at the same time or it may cause a problem because of the big amount of memory used. Then I decided to use the DataTable's WriteXml method and save table after table, but the the generated file only stores the information of the last DataTable.WriteXml's call. How can I preserve the previous XML data when adding all that information?
View 4 RepliesI cannot read filename in response header:Content-Disposition: inline; filename="
View 6 RepliesI have a textbox on a form that is set to allow dragdrop operations from txt files.Basically you drag a .txt file onto the txtbox, the content of the text file is displayed in the textbox.All is working fine, however after the textfile is displayed in the textbox, the text box text is for some reason is highlighted.I don't want the text to be highlighted (or selected) after it's being displayed on the textbox.Second issue, after I close the file that I dragged, for some reason even if I didn't make any changes to the file, it is acting as if the file has changed.In another words, if I open a text file using my MenuItem Open item, and if I do not change the file, If I close the file it's fine it closes.However, if I close a file that I draged into the text box and then close the file without changing anything in it, the stringcompare function is telling me that the file has changed... I can't understand why.
View 6 RepliesWhat i am trying to do now is to show the content of the dnsredir.ini file on the forms and able to edit it.
The dnsredir.ini file file looks like this
;Configuration INI file for DNS Redirector v6.4.7
Logging=Normal
ListenOnIP=172.23.128.33
[Code]......
I have a sample app here I could use a hand with Basically I'm trying to update the TextBlock on the main page using MVVM when the content the frame updates the the property. Please find the code attached below:[URL]..How do i get the button inside the frame to change the variable and update the TextBlock on the parent control?
View 1 Repliesloop through a textbox control content and extract specific content from it
View 20 Replies1)This is my code.. (below)what i am trying to do here is to insert username and confirmed password into a sql table called login via a pre created form.I have 1 textbox, 2 Maskedtextboxes and a button.
what i would like is if the passwords do not match in both maskedtextboxes for the system to throw out a message saying passwords do not match please try again..which then clears previous content and requires the user to enter details again. once details are correct and system commits the new user details to the table and throws up a confirmation message.
[Code]...
I am working on a vb.net project which is concern about the computer file forensic. Thing is i wish know is there any idea how do we know a file was modified and which part of the content was modified. For example, a file was consist of number of bytes which could be translate in string with HexEditor (* FF D8 00 EF.....). If someone was modified certain hex number from the file like (* 00 00 00 EF....)How do we know those hex numbers was modified? Any .NET class function can peform the action like that? Or is there any idea to do that?
View 1 RepliesI need some guidance on the best way to proceed with searching a file content.I have a large file (see attachment) that is in text form, some of these files could be upto 50 times as big, therefore creating a huge file.These files contain information that is produced from another application and therefore I am unable to change the format of the file.This file contains information that I want the user to be able to be able to enter search criteria in a form that then searches this file and returns information. The individual information is split into sections of data and this is defined by the section start label lbl{ and the end label }} Therefore the below information highlighted in bold is an individual section
lbl{-32768 21 12 0 text {Equip no: P-102BDescr 1: RECYCLE PUMP-BDescr 2:}}lbl{-32768 21 28 0 text {Equip no: D-100Descr 1: COLUMN RECIEVERDescr 2:}}Now comes the hard bit, in the bold section above you will notice that there is some text Equip no: P-102B I want the user to be able to enter in a form *102B* and for it to return -32768 21 12 0 which is after lbl{ and before text.Now obviously I could loop through the whole file to do this, however I am very concerned about RAM usage and also the time it will take to do this. Obviously the user could use this search option over and over again and therefore we would be searching the same file over and over again. One of my thoughts was to read the file once and output the content in an Access Database table and then use SQL to get the information? However would the user require Access on there machine to be able to do create the database or could I just ship a blank Access database with my app and then copy this and populate? Also I am not sure if Access is the best database, obviously I don't want people to have to use Oracle of SQL as this would require server configuration etc. but are there better free databases out there?
I'd like to get both C# and VB.NET sugestion.
I have an ASP.NET FileUpload control, which allows only image type. I used RegularExpressionValidator like below.
<asp:FileUpload ID="fuPhoto" runat="server" TabIndex="40" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator3"
runat="server" ControlToValidate="fuPhoto" Display="Dynamic"
[Code]....
This method will only verify the file's extension, not its actual type. Once I receive the file, I want to examine its contents to determine what it really is, in this case image only.
How do I examine the file content being uploaded?
get the whole and same content of any file i uploaded, for my editing purposes in my editor w/c retrieves file from the database. i.e of files are ".doc and .txt"and by the way what i meant by same content is the whole same appearance of my .doc or .txt file i.e "if the text is bold, forecolor is red and etc.."
i successfully established a file upload and a function to store it in a database... but what i'm missing is the whole and same content of the file. Another thing is i don't want the file to be saved in a local folder or somewhere..i just want it to be save directly to my database Below is my sample code of trying to retrieve the content.. but it is an error when you run..
Private Sub cmdSave_Click(ByVal sender As Object, ByVal e As System.EventArgs)
If filMyFile.PostedFile IsNot Nothing Then
Dim fs As FileStream
[code]....
I use Vb.NET from VS 2010 I use a SQL File to run a script, when changes to the database should be done.This works fine for me. The SQL File is in my project and marked as embedded file.Now I run into an issue. I have to change the user name, when updating a Trigger or SP (for complete information: I use mySQL and 3rd Party Script component)So, I thought, I write the embedded file into a Temp-File, make the changes to the file, run the temp file through the script component and then delete the file.
View 2 RepliesThe system must read the text file serch for the word 'top' and coby the specic content below 'top'. 'top' is the title of the specific section. Now i can read and serch for the word then i dont know how to copy the the below portion of 'top'.This is my code .Dim File As String = "c:wires.txt" ' file name that suppose to read
Private Sub CheckFile(ByVal theFile As String)
Dim myFileChecker As FileStream = New FileStream(File, FileMode.OpenOrCreate)
myFileChecker.Close()[code]......
I have used the FileStream class with the XmlTextWriter in the past without issue but here I'm using the XmlReader from a WebResponse. I need to the complete contente of the XmlReader dumped into a file. I have the file setup as a streamWriter but I just can't seem to get the content of the XmlReader to the file. I just keep getting a 0KB file.
If FirstDataHttpRequest.HaveResponse = True Then
'Put the response into a stream so that we can create a reader
Dim ResponseStream As Stream = FirstDataResponse.GetResponseStream()
[Code]....
Is it possible for me to modify this area1.txt format to format as in area_modify.txt file take a look txt file for diffrent.... the area1.txt just simple report.
View 14 RepliesI have a Checklistbox that I want to be able to add content to using a button. The checklistbox by default will always be empty.The content would be from a text file and would a list of email addresses.I would ping each email address to see if it works then select check the working ones and send out my emails but not sure which route to go with to get this thing up and running.Would that be the best way to method to use to open my file for the txt files?
View 1 RepliesI have got a program with a Rich Text Box, the user enters the data in the RTB which can be super or sub scripted, then saves it in a text file (or any other if text file is not possible). Then another user opens the program and loads that data into the RTB. Would the format still be superscripted or subscripted.
View 7 RepliesI have .html file in my local drive, i wish to read the content of a table in it and to be stored into sql table. how to code it using vb.net?
View 1 RepliesUsing C# program I am reading CSV File with value like (Name, Salary, Age) (A, $1,200, 27) (B, 2300, 27)In the header row there are three columns. I want to validate that the number of columns in data rows is also three. (C, 28) should be an invalid file.
View 3 RepliesI need some guidance on the best way to proceed with searching a file content. I have a large file (see attachment) that is in text form, some of these files could be upto 50 times as big, therefore creating a huge file. These files contain information that is produced from another application and therefore I am unable to change the format of the file.
This file contains information that I want the user to be able to be able to enter search criteria in a form that then searches this file and returns information. The individual information is split into sections of data and this is defined by the section start label lbl{ and the end label }} Therefore the below information highlighted in bold is an individual section
CODE:
Now comes the hard bit, in the bold section above you will notice that there is some text Equip no: P-102B I want the user to be able to enter in a form *102B* and for it to return -32768 21 12 0 which is after lbl{ and before text
Now obviously I could loop through the whole file to do this, however I am very concerned about RAM usage and also the time it will take to do this. Obviously the user could use this search option over and over again and therefore we would be searching the same file over and over again.
What I am wondering is if anyone has an idea on how best to do this?
One of my thoughts was to read the file once and output the content in an Access Database table and then use SQL to get the information? However would the user require Access on there machine to be able to do create the database or could I just ship a blank Access database with my app and then copy this and populate? Also I am not sure if Access is the best database, obviously I don't want people to have to use Oracle of SQL as this would require server configuration etc. but are there better free databases out there?
I do not read file content except .txt file .Can you give universal solution in vb dotnet to read content all type of file.[code]
View 1 Replieshow to auto load data content from a file (primarily containing rtf)when the file is opened. I want to create a system like Microsoft word where you create docx/doc files and double clicking them opens word software and loads the files.
View 3 Repliesi need code for chose any txt file and opening it from open file dialog (if thr user click in open button)and display the content of chosen txt file in textbox
View 2 RepliesMy Q is: How can i drag and drop a file into a rtb and have it show the content. Like Notepad++
View 6 RepliesMy current project is to process several files. The files come from a Unix server and have been SFTP'd to the Windows XP machine. (That's fixed protocol, I don't have control over it.) My problem now is that the Unix new line characters and Windows characters don't match. The solution is to read the file line by line and replace 0x0A with 0x0D + 0x0A, or Asc 10 with Asc 13 + Asc 10, or vbLf with vbCrLf, however you like to say it.Well I have a working function to do this, but any extra speed I could squeeze out of it would be fantastic. The text files I'm working with can reach sizes of about 100MB. So to the question:
Q: What is the fastest way to read a file in, change characters as necessary and then write the file out?Here is my current working code.
Private Sub FormatCharacters(ByVal files As String())
Try
For Each fileName As String In files
FileSystem.Rename(fileName, fileName & ".old")
[code]....