I want to generate an xml file from the vb.net form application and i have the following vb code and the xml output file is shown below the code
Imports System.Xml Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I've two Strings which I'm loading from a SQL Server 2008 database (nvarchar-field)After loading them from the database Visual Studio 2010 displays them as follows in the watch window:
str1 = "Test"
str2 = "Test"
But the comparison with str1 = str2 returns False If I write those strings to a file with UTF8 Encoding the result is as expected:
Test
Test
If I write those strings to a file with ANSI (Default) Encoding the result is NOT as expected:
?Test
Test
Converting the strings to bytes:
System.Text.Encoding.Default.GetBytes(str1) 'Returns ByteArray {63, 84, 101, 115, 116}
System.Text.Encoding.Default.GetBytes(str2) 'Returns ByteArray {84, 101, 115, 116}
System.Text.Encoding.UTF8.GetBytes(str1) 'Returns ByteArray {239, 187, 191, 84, 101, 115, 116}
System.Text.Encoding.UTF8.GetBytes(str2) 'Returns ByteArray {84, 101, 115, 116}
Where is the Byte 63 in case of ANSI Encoding OR Bytes 239, 187, 191 in case of UTF8 Encoding for str1 coming from?Well, Bytes 239, 187, 191 are the BOM for UTF8. The question here would more likely be: Why do I get the BOM for str1 but not for str2?(Well, the values are values passed to a webservice which inserts them into the database, the initial values are passed to this webservice by a client I've no control over)
Generating resource files
View 1 RepliesI have a VB project which has a list of forms, one of the Forms resx file doesn't contain information about controls and seems to be corrupted, now I want to regenerate the resource files again for the form, how can I do that?
View 3 RepliesOk I know this question has been asked to death but I still have not seen a good answer. I have created an application in VS2010 using VB.NET. In my application I have an error log that is an XML file located in the Public gstLocalErrorLogLocation As String = Application.StartupPath & "ErrorLog"that gets written to in the event of an error so I can trouble shoot application easier. My application also downloads files from our FTP site and puts the files in Public gstLocalDownloadLocation As String = Application.StartupPath & "download"So I have files that get read and written to as well and created and deleted all in the Application.StartupPath which is either "c:Program Files(Application Directory)(Some Directory)(Some File)" or "c:Program Files (x86)(Application Directory)(Some Directory)(Some File)" depending on 32bit or 64bit Windows 7.
After creating the setup I install it on my test machine that have both Windows 7 32bit and 64bit.Everything in the application works great till I have to write to, delete or creat a file in those directories above. I know it is an access issue and the UAC. This will get installed on numerous systems so the options I have seen to change file or folder permission on the computers manually is not an option.What has to happen is after I install the application it just works like when you install it on XP. Some post have suggested that you us a user with administrator privilages or group which is all fine and dandy but the user I have used to test the application has all of that.
So what I am asking is how do you create an application with VS2010 in VB.NET that after creating a setup package and installing on Windows 7 will just work with out "Access to the path c:Program Files(Application Directory)(Some Directory)(Some File) is denied." If I have to install this on 100 Windows 7 computers it has to be a concreate no manually doing anything just install and work like when we installed on XP.
coders within the program i'm coding right now I would like to generate an arraylist of all files within a folder, its subfolders and those subfolders subfolders.These are the functions i have to generate an arraylist of all folders in a folder along with all files in a folder is there any more simple way to just search every file within a folder including all subfolders, and subfolders of subfolders?
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I was doing window services where I'm generating txt files in target path based on some details from a database. I was getting same file name in the place of sec variation required so that I can avoid duplicates over there.
Code:
using (transactionscope scope = new transactionscope ) {
string nowtime = datetime.now.today.tostring(HHMMss) // it was working fine
}
File should be generates by specific file naming convention !! ex:hhmmss >>> no millisecond.
I'm creating a simple forms application where users can enter their details and save the information to a .ini file because I needed this for a simple game profile. I've tried to make it write "Name =" + txtname.Text but it won't work anymore. And as well as that, I don't think It will load the text back from the ini file.
Here's the code I used;
Public Class Form1
Dim hFile As Long
Dim sFilename As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
Form designer: [URL]
Form1.resk: [URL]
Form1.vb: [URL]
Basically I'm writing a program that records all the financial transactions I make. You type in what it is, whether it is going in or out, the date and the price. I will get on to adding the sums up later but that's important at the minute. With one record the program worked perfectly but as soon as I added an array to the records variable it stopped working and complained about a null value.
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how to write and overwrite a excel files?write is like create a new excel files and insert data to it using vboverwrite is writing data to the excel file which overwrite the old
View 2 RepliesI'm working on a program where i need to create a text file and write in it. I created the file and I'm capable to write in it but my problem is that i'm not able to write text on the same line. Imagine you have 2 textboxes, the first is tb1 and the second is tb2. how can i write then content of the 2 textboxes on the same line in the text file?
View 4 Repliesseeing as '.dat' files contain only what you want them to and there is no preset encryption for them etc could I write data to one by using this simple process:
1) Change file extension to '.txt'
2) Decrypt
3) Write
4) Encrypt
5) Change file extension to '.dat'
and pretty much the same for reading it. or am I thinking to simply?
I thought of the above way as i know how to write to text files already, but is this the best way to do it? or is there a better way?
EDIT: Nevermind you just write to it like a text file and encrypt/decrypt it. request lock/delete from mod.
I am trying to create a bunch of records, there will be a limited number of "Codes", about 50. Each "Code" is associated with a name from a textbox, I was trying to have it save each one when you click a button, to a .txt file.So, from the start the record will be blank, the person will go through the form, choose a number from a numerical up and down box, pick a name associated with it (both of these are mandatory and not implied). When they click the button, it will save the contents I talked about into a .txt file, say the number is #2, and the name is "Bob", the next time they try to change that value for #2, it will overwrite "Bob".
View 6 RepliesI have been given the task of basically reading and writing to and from files. Below is the code from one sub:
If btnSaveRecipe.Enabled = True Then
FileName = "C:UsersLeylaDocumentsRecipe TaskRecipe.txt"
FileWriter = New IO.StreamWriter(FileName)
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I can't work out what i've done wrong, but when I open the file itself in the folder, it is empty.
Am writing a simple application which can write a to pdf,doc,xls and access files. so far it can write to word.i also want it to be able to navigate a hard disk and open these files using filters. i was using this code to write to the files
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I am trying to search for snippet for reading and writing ini files in visual basic .net.
View 3 RepliesInput File to read:
SAMPLE NO: 10S-02013
Moisture 10.1
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I am not getting the right output I need, as whenever it reads a line, it looses my sample numeber.
I'm writing a system with several programs, each of which will start off with a number of 'run time parameters' which will be stored in what I call 'personality files'. Each file will have about 10 elements ( file locations, logo files, dates, numbers , text strings ). I"m starting by building little programs which maintain ( build and modify ) the personality files. To begin the first one, I"m only reading/writing 3-4 strings ( I"ll graduate to dates and numbers later )When I run the program below, I get " The process cannot access the file 'c:yyyyyyyy.zzz' because it is being used by another process. ". I also get"A first chance exception of type 'System.IO.IOException' occurred in Microsoft.VisualBasic.dll "
I get these errors even though I've done the usual stuff like deleting other versions of the test file, cancelling other processes which might be involved, and so on.
Code:
'.... user has clicked on SAVE in menustrip ....
Private Sub FileSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FileSave.Click
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so i have it so that the user input three initials and presses an enter button. Then it goes into a listbox where theusers initials and game score enter. I then have it transfer to a text file. all this works but i need some code toun through the text file and arrange them from highest to lowestheres my current "HighScore" codei know its going to be a for loop but im a beginner in vb and it would be so much easier in java button1 is the enter buttonbutton2 is the save button that saves to a text file
Imports System.IO
Public Class HighScore
Dim objStreamWriter As StreamWriter
[code]......
I am having difficulty writing to cvs files. My application is a text parser that scans a txt file, removes punctuation, and then stores the individual words in another txt file for later analysis. My end aim is to process txt for semantic similarities. I'm very new to this so my code is very chunky But I'd really like to pull each sentence from txt file, put into an array, and then place each array item into a CSV file with commas between words. [Code]
View 2 Repliesi was wondering does any know of any good tutorial on using dat files eg reading writing and formatting. I am pretty sure you and use stream reader and writer form the IO but what about formatting.
View 14 RepliesMy app has a series of parameters that is to be stored in an external files. Eventhough the "parameter" file could be edited by the end user, I really don't care that much about what the user does to them.
So my two questions are, what is the most effeicent means of reading and writing a file and in what format should the file be in? When I say effeicent I mean, what utilizes the least amount of memory during the process, is fast, and disposable.
Example: XML, Text, something else. StreamReader / StreamWriter or what ever.
This does not work because it will not write when the writers closed how do I keep it open? What do I have to change?
Dim tring As Integer
Dim startnumber1 As Integer
Dim bas As New System.IO.StreamWriter(SandboxLocation.Text & "internetconectivity.bat")
bas.InitializeLifetimeService()
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If tring is more than one it doesn't work, it cant write to a closed bat file.
I am writing the source code to write the random files name but I don't know how to write that in vb.net Here it is the
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Where should I write the header file - Using System.Configuration and others? When I write it after the Inherit line in the form code (not the HTML one), it gives a redline under it. I want to start making a website.
View 1 RepliesI need to read the keys from several external applications .config files, is it possible to specify the file for AppSettingsReader?
View 1 Replieshow I should go about getting the names of the computers on a network. And if the comp had file sharing on, get the "tree" of dirs on the computer. Would I need to authenticate myself in order to read/write actual files to it?
how to even get started, so I don't have any code - the best thing I can think about doing is getting the tree of "\\network" or something. (forgot what it was called)
find some code (or give some search keywords or names of APIs) that would allow me to see and write/create files on a networked comp.
I am witting an app that will generate batch files to do an unattended installation of a share point 2007 farm. I already have a batch file I use and it's pretty big. I copied and pasted the content into my application, and I'm using the System.IO.StreamWriter to write to the batch file from the winform. [code]As you can probably guess, I'm doing all of this in my mainform code window. There are maybe 3 or 4 batch files that will be generated based on the selections made on the form. For example, I'm generating a batch file to create the OU, Group and service accounts the farm will use in active directory, I'm creating a batch file for all of the variables that will be used for the additional batch files created, etc. How can I split this up? is there a way to create the batch files without having to actually copy, paste my existing batch file content into the mainform code window? I'm using file.writeline on each line of the pasted content by the way.
View 7 RepliesOur organization is using UniObjects for .NET but the CD seems to have gone missing. I need to figure out how to read and write to and from files in Universe. note the program is written in VB.NET
Dim uniSession As UniSession
Private DATABASE_IDENTIFIER As String = "uvcs"
uniSession = UniObjects.OpenSession(_hostname, _username, _password, _account, DATABASE_IDENTIFIER)
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how to insert new values, and read values from the LICENCE_STATUS table.
I'm getting a problem when writing text files using StreamWriter. The files read fine and they write fine if I'm not overwriting an existing file. They also write ok as long as I'm not writing over a file that only has one digit at the end of the name. For some reason when there are 2 digits at the end it crashes when I'm trying to save over an already existing text file. Here's my code.
StringForTextFile = "C:" & Folder4PS & "" & IDCodewDashOrN & "Series" & Series & "ScreenNumber" & ScreenNumber & ".txt"
LblTesting.Visible = True ' Testing
LblTesting.Text = "StringForTextFile = " & StringForTextFile
[code]....
above but 've tried all the different Encoding possibilites. Unicode, UTF32, UTF8, UTF7 as well as without those parameters listed where the close parentheses is right after StringForTextFile. I get the same result. If I'm writing a new text file that doesn't exist, then no problem or if I'm writing over an existing text file but it has 0 to 9 at the end then I'm ok but if I'm writing over an existing file and there is 10 or above(haven't tried triple digits or all values) then my application crashes. You see the test label in the code above because I was looking at exactly what file it was trying to overwrite and it is just as it should be.
Should I be using a different procedure? An example of a string that would cause a crash for the string StringForTextFile would be:
C:Name of My AppSeries1ScreenNumber10.txt
If it was being written for the first time then no problem or if the 10 at the end was 0 to 9 then no problem also. I've also tried and originally had it set up where there wasn't an If File.Exists(StringForTextFile) = True Then statement. It just always used the same code whether writing or overwriting and I wasn't having a problem that I remember. For some reason I started having a problem recently and I put the alternate methods of writing in.