Using IsolatedStorageFile Class To Insert/append/read Log File?
Aug 20, 2010
What code would I use to accommodate isolated storage mechanisms on a Windows XP machine to place log files? I can't find my previous code but I believe the IsolatedStorageFile class wanted to place the file in C:Documents and SettingsAll UsersApplication DataLogFileNameToWriteToIsolatedStorage.txt'The problem is that on two XP machines where this has been employed, the ApplicationData folder does not exist.Was I maybe using System.IO.Path.GetTempPath();
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Dec 1, 2011
I'm using this script to add text to a variety of .txt's on the fly: Const ForAppending = 8
[Code]...
So I'm sending text with the program launchy this .vbs (addln.vbs) - ("$$" c:ideas.txt) is what the argument is if I want to send to ideas.txt for example All I want to do is make it so I get the date and time right before whatever text I send to this text file. I don't think this would be too complicated.
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Apr 10, 2012
How would i read a set of names out of a file and then append them to a list box?I am not guaranteed a pair will be on the same line, and not guaranteed that a line would contain a maximum of one pair(i.e., it might have three pairs or it might have one and a half pairs - a first name, last name, and another first name whose matching last name would be on the next line). A line may also be blank.All of this needs to be in a visual basic format.
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Jun 9, 2011
I'm having some problem here. I have a list of files to read and have to append them all to one unique file. the problem is that when i open the first file to read. I read the first line and discard it. when i read the second line, its empty ! but it is not in the original file. what im doing wrong ?
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Feb 12, 2011
I'm trying to use XML more often in my apps, but somhow I just can't get it. Examples on the "net" are somehow unclear to me.
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Dec 16, 2010
I have problem with my application I have a table with 3 columns: column1(numeric(18,0), allow null), column2(nvarchar(255), allow null), column3(datetime, allow null). I want to read data from a .csv file and insert it into database. I use 'bulk' to insert data from file .csv into database instead of inserting query. But the problem is: the .csv file have to be formatted as:
[Code]....
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Jun 16, 2009
it is a normal text file, I would read it then , (This part I got it) print it out to a reciept printer, send insert ascii code to force the printer to cut the recipt.
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Dec 29, 2010
I am looking at Visual Basic 2008 Step By Step. I need to read a flat file and insert the records into my SQL database. My code so far:
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The INPUT line needs to be fixed. From what I can see, I need to move it all to a single field and use a split to parse it, correct? As I look at the entries on this site, all the code seems to use stream readers. Why would the book not do that? Am I missing something?
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Sep 27, 2010
I am using BinaryReader class to read binary file.But I am facing problem while reading number of bytes from it.I have written code to read only 2 bytes from it,it works well on my machine and read only 2 bytes,but when I deployed that code on server machine it read 4 bytes from file.Whats wrong in the code?Is it due to processor i.e.. 32 bit processor/64 bit processor.
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May 3, 2009
What is the best way to write & read some customised class data to and from a file as a way of saving my application settings?
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Jun 5, 2011
My question is How can i create insert,update,delete query by using class file and store procedure. This query is use for 3 tier.
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Sep 12, 2009
I am trying to read a line from a file and add it into a listbox. The SelectedIndexChanged event of the listbox places the selected item (hence, the item I added from the file) into a variable that is declared as a Store (my own personal class.) I can easily add the line from the file into the listbox, but I run into a problem with the SelectedIndexChanged event. When I click on the item in the listbox, I get an error that says "Unable to cast object of type 'System.String' to type 'WindowsApplication1.Store'." (I guess this is because I added an item to the listbox that is from a file.) I tried a variety of methods of casting, but nothing seems to work. What can I do to fix this?
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Mar 6, 2010
I'm trying to make a form that will read my wordlist. txt (one word or phrase per line) then using a timer, insert one word randomly selected from the list, and display it in textbox1 where it will remain until another timer changes the word. The word in the textbox will display for a random time 1min to 7 min, then the textbox displays another word randomly selected from the word list.
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Feb 9, 2010
When started my app connects to Access 07 DB and checks if Table has more than 1000 records.If so,it exports them to a CSV file and deletes them from the table.After some time,Table will again reach 1000+ record,and I will again need to export them.But,I do not want to create a new CSV file,but rather append to existing one.
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Feb 25, 2011
i am using the below code to append to a xml file, it appends fine but i cannot work out how to wrap it in these elements <Contacts></Contacts> like this:
Quote:
<Contacts>
<Company>comapny</Company>[code].....
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Jul 7, 2009
I have text file to read. If i find a line "T001" then i must add specific text beside that line. With my code now it write the specific text at the end of the file not beside the line "T001" This is my code so far
Dim filename As String = strFileName
Dim tfLines() As String = System.IO.File.ReadAllLines(filename)
Dim objwriter As StreamWriter
objwriter = File.AppendText(filename)
[code]....
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Jan 28, 2009
I want to write out to an xml document from a database which I can do but how do I append to it if it already exists?[code]
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Jun 22, 2010
I have a file that contain data structure as below:
L,13206,11,02,06,000,3981.100
19,22,25,26,19
END
[Code]....
so how can i extract 1 and -18970.811,53728.643 and export it into a new output file with new structured as below: C 1 -18970.811 53728.643 For your information, the value for -18970.811,53728.643 will be placed after string K,1,P or K,2,P or any number between K and P...
One more thing is i want to append that new formatted data into old ready file that already contain old data... new formatted data will be append to the top of the old file..
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Apr 30, 2011
I don't have a problem but I;m asking you something on the in VB.net.code. So in brief, this means that apart from 'Create', the 'Append' also create a file when it does not exist then?
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Aug 10, 2010
[code]...
When I run this I get the file is currently in use.
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Jul 15, 2011
This question is a little more in depth than the typical append and save. I'm needing to append multiple controls text to 1 file. Basically what I have is:User inputs name in TextBox1 User inputs Service Type from selected list in ComboBox1 User checks of any or all CheckedListBox fields that apply. Now, all together, there are actually between 4 to 6 different checkedlistboxes.What I am wanting to do is when the user clicks the Submit button (Button1), at the bottom, it will write a text file of TextBox1.Text,omboBox1.SelectedItem.ToString, and all the checkedlistbox items.Now there is a small thing I may have to start another question on. For every checked item in a checked list box, I would like to writ
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Oct 5, 2011
I want to write a byte array to the end of an existing file. How to append byte array to file?
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Oct 6, 2010
my app will be parsing an array of data and generating text strings (of around 80 chars each), which I then want to append to a text file. What is the best (fastest) way to do the file appends? file size will be up to 40K lines.
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May 17, 2010
I'm trying to make my application append to a simple log file when it executed and when it's closed. So far, so good (see code)
However, what I would like to do, is have future lines of text to be written on the next line instead of the same line. And possibly a date stamp.
I'm not quite sure how to implement this as far as syntax goes.
My.Computer.FileSystem.WriteAllText("C:log.txt", "Application was closed ", True)
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Apr 12, 2012
I am providing 3-4 dropdowns on page load by If (IsPostBack <> True) Then ' Populate dropdown textfields from the database End If Say "ddlFiles" is one of the dropdowns containing filenames as "file1", "file2" and so on. Now when the user selects say "file2", I want to download file2.
[Code]...
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Jul 6, 2011
find a way to check if a file exist before opening it or creating it.I know how to open a file for output or input or even append which is what is going to do assuming it exist already.
'all this is inside a button which will open the file upon pressed
'to populate a
'combo box drop down list[code]....
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Oct 14, 2009
I want to append a text file with items from a listbox. I tried to search for a code to do that, but couldn't find anything(most likely I don't know what I am looking for). But I wrote this code and got it to work, but after looking at the code, it looks sloppy and I'm sure could have bugs I didn't catch....my question is, is there a better code than the one I made, or will my code work fine. I am eager to write code correctly, not just get the code to work.
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
Dim save As New SaveFileDialog
save.ShowDialog()
Dim saveFile As String = save.FileName
[code]....
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Oct 23, 2009
I am trying to create a textfile if it doesn't exist or append text to it if exists in vb.net.
For some reason, though it is creating the text file I am getting error saying process cannot access file.
And when I run the program it is writing text but how can I make it write in new line.
Dim strFile As String = "C:ErrorLog_" & DateTime.Today.ToString("dd-MMM-yyyy") & ".txt"[code]...
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Aug 28, 2011
I am trying to append a new line to a text file. Sometimes it posts to a new line (like I want it to) and sometimes it appends to the current line, consequently screwing up my read. I even put VbNewLine in the code.
Here is the snippet:
Dim outputline2 As String
outputline2 = equip & "," & value
Dim myfile2 = File.AppendText("equiped.txt")
myfile2.WriteLine(outputline2, vbNewLine)
myfile2.Close()
[URL]
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Apr 23, 2012
Below is the code which I am using to append data to a text file.
Dim FILE_NAME As String = "C:cebsample.txt"
Dim objWriter As New System.IO.StreamWriter(FILE_NAME, True)
Dim record As String
Dim amount As Integer
Dim amt As Decimal
[Code] ....
Now I would like to save that updated file with another name.
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