Dim Log As New StreamWriter("C:/Log.Log")
Log.WriteLine("Closed at " & TodaysDate & " " & TodaysTime)
When I use that, it doesnt write any new lines, it overwrites current text. How do I get it to "Log" down all the times it was closed?
I am taking in two html files and creating one out of them. To do this I am opening the first html file and not writing out the closing </body> and </html> tag and opening the second file and not writing out the corresponding opening tags, as well as the <style></style>section. I start a streamwriter, and write the lines out to it, and then close the streamwriter. My problem is that the output file is filled with strange characters. I've tried opening the streamwriter with different character sets as the third parm, but all this does is change the characters to different strange characters.It says charset=windows-1252 at the tops of the input files (and the output files for that matter - since I'm just reading stuff in and writing it out - with the exceptions mentioned above).Questions;First, do you think I am properly approaching appending two .htm files together?Second, how can I eliminate these strange characters.
[code]...
for example i have this code :
Sub Month()
Dim Conn As New Data.OracleClient.OracleConnection
Conn.Open()
Try
Dim Cmd As New Data.OracleClient.OracleCommand
With Cmd
[Code]...
What will happen to the datareader when the Connection is closed ( Conn.close)
Will the Cursor that is used by the datareader be freed ? or will it stay open ?
If the cursor that is used by the datareader is still open , when will it be automatically closed ? or should i just closed it manually ?
Will it cause the dreaded "ORA-01000: maximum open cursors exceeded" ?
2 Listboxes gives values to listbox3 like "listbox1item:listbox2item"When I export it to txt file and open in notepad, it shows listbox1item:listbox2item listbox1item:listbox2item listbox1item:listbox2item but when I open same file on wordpad and other text editors it shows like
[Code]...
Basically all I need is my program to write a character(Ex: "1") in a certain position specified by me in a line in a textbox.
So so far my code is:
Dim sw As IO.StreamWriter = IO.File.AppendText("101.txt")
sw.Write()
And all i need to know is how i pick the position that the .write function writes.
I have this code to send all line of a txt file to a listbox (StreamReader).
Dim sr As New IO.StreamReader("Items.txt")
Do Until sr.EndOfStream
lstItens.Items.Add(sr.ReadLine)
Public Sub LecteurLogin()
'// Cr�ation du r�pertoire syst�me de CYS2011
Dim dir2 As String = "C:FicheStatsLogin"
If Not IO.Directory.Exists(dir2) Then
[code]....
Basically this is a function I call during the program booting and it creates the necessary directory and also the LOGIN.CYS file empty... then later data can be added.My issue is that it keeps adding a line to the .cys (which is a .txt file) but I just want VB to create a plain text file with no content inside...
I'm creating a text file and, among other things, I need to write the text of the parent and child nodes of a TreeView to the file. I know how to write the contents and read them just fine, but what I can't seem to figure out is how to write the contents if I don't know how many parent nodes or child nodes there are. When I do, I usually do the following:
[Code]...
When there's no file path in the streamwriter constructor does anyone know the location the file gets output to?
Dim sw as StreamWriter = new Streamwriter("test.txt")sw.close
I am coming across a lot of odd and annoying problems in this program and have almost had enough lol.
I cannot figure this one out for the life of me. I have used streamwriter a hell of alot of times and never once experienced this. But basically I have a string array and I need to write the entire array to a text file with a new line for each array item. So I have gone ahead and done this:
[Code]...
However the outcome is the text file only contains 1 line and that line is the last item in the array yet I know the array has got at least 50 items in it.
Okay, this actually relates to some work I'm doing that I already have something in place. So if a change is necessary down the road, I'm in no hurry... But I did a dangerous thing and began reading. As I began reading about ways to stream file data, I became curious as to when it is a good idea to one method or the other.
[Code]...
I am using the Streamwriter to send simple messages to other machines in my office. But i hit across a problem today which i never thought about. If the computer im sending the message to, doesn't have the listener running, the sender crashes out. Is there anyway to trap the error, and deal with it nicely (i.e a message box) instead of the app quiting?
View 3 RepliesI'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.
I have a problem with an application I have written. To keep it simple, it does heavy math calculations. If the results meet a specific criteria, it is written to a text file on a line-line-basis.The problems is, if I go look at the data files, I will find non-numeric symbols mixed in with the numbers. Sometimes it is a question mark, "?". Other times, it is control or extended characters that Notepad or Wordpad cannot display. They can be mixed into the numbers, like so: 215x7 or 8948x, where "x" is the odd character. I thought the problem may have been my use of "DataFile.Flush". I removed that, but still have the corruption.
Below are my declarations and code fragments:
Dim Number as ULong
Dim DataFile As System.IO.StreamWriter
DataFile = My.Computer.FileSystem.OpenTextFileWriter(FilePath & fName, False)
DataFile.WriteLine(Number)
The first time I had a problem, I thought it was my use of "Cstr()" in the WriteLine statement, with "Flush" as I stated above.I do not know if this is a situation internal to VB2008, or external, like hard drive buffers writing.
I made my own advanced networking system which uses System.IO.Streamwriter and Streamreader but offline. I would like to let this use a directory online, I have a webhost available for that, now how do I say to the program it has to look at a specific map with all the users information?
I now have already this into my login form:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
On Error GoTo A
[CODE]...
Just curious if I can let my network grow out international instead of pc. Also I have a second question. I made a create account page which is supposted to make a text file with the txtUserName and txtPassword inputs, but it does create the file, but doesnt write any lines into it.
Code here:
Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim UserGenerator As System.IO.StreamWriter
[CODE]...
I want to enlarge an image, possibly up to 32 times or 64 times bigger than original dimensions (so that the user can see each pixel) if possible. The following is a simple function that I have to enlarge an image.
Private Function xEnlarge(ByVal Source As Image, ByVal Rate As Double, Optional ByVal Quality As Drawing2D.InterpolationMode = Drawing2D.InterpolationMode.HighQualityBicubic) As Image
[Code].....
I'm trying to use StreamWriter to write to a text file; it creates the file fine, but when I open it up, it's still empty. I marked the code below where the writing action takes place.
vb Public Sub BHorse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BHorse.Click
Dim oMarketsReq As New BFExchange.GetAllMarketsReq
Dim oMarketsResp As BFExchange.GetAllMarketsResp
Dim BFWrite As System.IO.StreamWriter
BFWrite = IO.File.CreateText("C:Datamarket.txt")
With oMarketsReq
[Code]...
I have a dialog box with about a dozen combo boxes. How can I access the checked results of the combos once the dialog form is closed?
View 3 RepliesWhen the Visual Basic compiler (Vbc.exe) crashes, Visual Studio fails to detect this and becomes stuck in an inoperable state. The "Build" menu appears as it would if the solution were building, but the Cancel Build (Ctrl+Break) menu item has no effect. Trying to close the application or the solution gives the error:
"The build must be stopped before the solution can be closed."
I can't find any way to remedy this short of terminating the devenv.exe process and restarting Visual Studio completely. Is there anything quicker and less severe?
I have a form that contains a crystal report viewer. When I open this form, it runs a report. I am using a .LDB viewer to tell who is logged into an access database. I noticed that when this form opens, the computer logs into the database and stays logged in. Even when the form is closed, the computer is listed as "logged in". If I run the report again, it just adds another instance of that same computer logged in. Therefore, it continues to pile up logins until the application is closed.
View 1 Repliesi have this error when executing "Operation is not allowed when the object is closed" on line rs = cn.Execute(Query)
this is my
Do
tsReadLine = tsR.ReadLine
If Len(tsReadLine) = 0 Then GoTo skip_line
[Code]....
I am using a Gif animation on my Mainform. When i open a second form and then return to the mainform - the animation stops. How can i make sure that the animation restarts after the second form was closed?
View 1 RepliesI am using a Windows Dialog form in my VB 2008 project. I bring up the dialog form no problem with the following
Dim resultNewInc As DialogResult
resultNewInc = frmDialog.ShowDialog()
If resultNewInc = DialogResult.OK Then
...some code here ...
End If
And in the Dialog Form, the OK button has code
Me.DialogResult = System.Windows.Forms.DialogResult.OK
Me.Close()
But there is one problem. If I call up the dialog form again, the form controls have the text values that were typed in during the previous instantiation and a class which is part of the form was not disposed. So it looks like the form is being "hidden" and not closed. I tried to use the code form.dispose but it didn't work.
I got a strange form in my project that doesn't close when I close it, so every time the user will use it, it will stay on system processes. The form is not even shown on the taskbar when it is loaded. It is just a regular form - System.Windows.Forms.Form.
View 9 RepliesHow do you check if all instances of forms (or simply all forms of an application) has already been closed?
View 10 RepliesI want to drag files & Folders into my published VB EXE to list it How ?( info: i want it when my program is not running in the processes )Like when you drag text files into closed notepad.exe notepad.exe will open the dropped textI want like that exactly.And also in the shell windows explorer context menu. (open with...)
View 3 RepliesI have a application based on the entity framework. I have extended one of the classes (Quotes) wit 'partial class', and within that i've created a method that is completely independant of any database properties. For simplicity lets say it looks like this:
[code]...
All is good, except i need to bind this to my a textbox in my UI and have the textbox update automatically when the property is changed (like a dependency property). This is proving problamatic, I've tried both invoking the onPropertyChanged sub that the entity framwork exposes and implementing intoifychanged. Both cause errors.
I've been asked by management to convert all of my applications from VB 2005 to VB 2008 (in preparation for taking them to VB 2010). I have a VS 2005 application that uses an ADO Data adapter which was defined using the GUI. I normally define my connections in code, but have been asked to get away from that in favor of ADO (and similar) data adapters.When I run the conversion wizard in VS 2008, it appears to convert this program, with some warnings and I get the 'Conversion Completed' dialog box. However, the VS 2008, will not let me close the dialog box, even after waiting for 3 hours. The only way to get out is to reboot the system.
View 6 Replieswhy when I am Closing the program by clicking on the X button, the NotifyIcon did not closed? it just stay there until I move my mouse over it....
View 5 RepliesI have just started using vb.net and I have a checked list box with times throughout the day shown as
00:00 - 00:14
00:15 - 00:29
00:30 - 00:44
00:45 - 00:59
What I am trying to find is a way to get the current time and find which list item it fits into. What I think I need to do is to first of all get the current time and then go through the list splitting each item into 2 times and seeing if the current time fits. For example: Split the item 00:00 - 00:14 to 00:00 and 00:14 and then check if the current time is more than 00:00:00 but less than 00:14:59 and if so do certain task.how to go about taking each list item and splitting it into 2 separate times so I can check between them?