File Saving Error Closing App Due To <b></b> In File Name
Apr 25, 2009
i just found a new error problem on my app.. i have a save button that saves text1. as the file name and text2. as the content.. i recently tried to save this file name on my app: HKEY_LOCAL_MACHINESoftwareC07ft5Y as a file name, and due to the in the file name, it made my app error and close without being able to save my file.. my question is, how to bring a msgbox saying "invalid characters in file name" instead of causing it to error and shut down. (just found out that registry entry is for SafeDisc-enabled products, although, i'm not fully sure..)
I am trying to write a code that lets you open a text file and display it in a text box. I need to make it so that when the user tries to close the program it will ask them if they want to save any changes made to it.
I am writing my data to an Excel file. I have two functions, create excel file and close excel file. When I am creating the first excel file, everything works fine, but creating another one after the first has been closen, I am getting an "NullReferenceException" exception.
Dim xl As New Excel.Application Dim wkb As Excel.Workbook Dim wks As Excel.Worksheet
I wanna make an application to monitoring lan PC webcams,i have a appwinstyle.hide application that acess to webcam and copies a frame from it 'gets a frame to clipboard
I have a window form with a parent shown as detail items and two child as datagridsviews. They work perfect when saving and uploading data. The problem arises when I up load a picture to a picturebox and I go to save. I receive error dialog "System data invalid constraint exception: FK WineList_WinePurchase requires the child key values(1) to exist in the parent table. Not sure what happening when I add the picture.
Private Sub WineList_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
The file structure is fine for retrieving data from the file but when I go to write data to the elements and hit any of the fixed array elements, I get an exception error. this has got to be a sytax problem I am just not seeing.
It seems that I am not addressing the array member correctly yet the same logic pulls it properly from existing records on file.
in a Module I have the structure as follows:
Structure INVOICE <VBFixedString(6)> Public NUM As String <VBFixedString(2)> Public SYMBOL As String
I have an Excel file with utilizes macros to allow a user to enter names of people and then double click on cells to enter ratings via radio buttons. When I open a blank file and enable the macros, I can add users, rate their skills using the radio buttons, etc. with no issue. I then SaveAs the file and continue working on it. once I Save and CLOSE the file, then go to re-open it, the trouble begins. Keep in mind, there is no alteration to the macros directly. Just entering data and using the form as intended. Here's what happens.
I reopen the file.I enter in the name of a person on one line. I go to the first box - double click on it.It is supposed to pop up a dialog box which allows me to choose a rating via radio button (as I had been doing before I closed the file). Instead, in that first column of ratings, it instead gives me the following error:
Runtime error '1004'Unable to set the LineStyle property of the Border class
When I hit "debug" this is the code it points to:
If ActiveCell.Column = leftb Then Range(Cells(ActiveCell.Row, leftb), Cells(ActiveCell.Row, rightb + 1)).Borders(xlEdgeTop).LineStyle = xlContinuous I have no idea why this would not work when I re-open the file!
note that when I go to click on the subsequent cells (there are 8 cells in which you provide ratings, moving across the columns with each cell) - the 2nd through 8th cells function fine. The dialog box pops up, the rating can be selected. it's just the FIRST cell that gives the issue What would possibly be the cause of this? We need users of this form to be able to save, close, and re-open it if needed.
Form1 is a mdi container. It has a bunch of forms that can load inside of it as mdi children. If I close each open form inside the form1, and then click the red X at the top right, application exits fine.If I click the red X without closing the forms inside I get: An unhandled exception of type 'System.CannotUnloadAppDomainException' occurred in mscorlib.dll
Additional information: Error while unloading appdomain. (Exception from HRESULT: 0x80131015) However I can break from it. How do I get the application to not show that error? What must I do to fix those inside forms or close when the red x is clicked?
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
I am creating a shell for a FORTRAN application which reads a tab delimited text file.Because I am using Excel to manipulate data, is it possible to use the Excel Automation features to "save as" a tab delimited text file?The only method available seems to be a unicode text format, which does not work. Or is there another format that mimics tab delimited so that the FORTRAN application will read such a file without difficulty?
I have an asp page with vb.net code that will query a database and present the user with the number of records that exist that need to be exported along with a button to export them. After you push the export button, it will prompt for a location and filename. But after that, it will not refresh the page with the new counts that now exist. Or in this case update the count to zero for the button they clicked. [Code] So how can I tell the page to refresh with the new counts. It almost seems like I need to tell the process to wait until after the user has finished finding the location and saving the file but I don't want to add a generic threading.thread.sleep in, I want it to only wait until they are done and then refresh the page.
Currently the reports are saved as a html file called report1.html, id like to make the user enter a name for the HTML file upon clicking submit.
A little stuck on how to make the filename for the HTML file save to a input entered by the user.
I currently have:
Try 'Open new HTML file to be written WriteHtml = New StreamWriter(Application.StartupPath & "ListHardware.html") If Not (WriteHtml Is Nothing) Then ' Is the File Open
I'm trying to upload a file via FTP from my local computer to an FTP server, which is also on my local computer at the moment. I've got this sub I'm calling:
Public Sub UploadFTPFile(ByVal ftpservername, ByVal fullfilepath, ByVal filename, ByVal username, ByVal password)Dim clsRequest As System.Net.FtpWebRequest = _ DirectCast(System.Net.WebRequest.Create("ftp://" & ftpservername & "/" & filename), System.Net.FtpWebRequest) clsRequest.Credentials = New System.Net.NetworkCredential(username, password) clsRequest.Method = System.Net.WebRequestMethods.Ftp.UploadFile
[Code]...
I'm running an FTP Server using Golder FTP Server, which is freeware. I think it's setup correctly because connecting to the FTP Server using the exact same string as above using Windows Explorer works great.
I'm trying to find out if it is possible to something and really need your help.
What i want to be able to do is have a RichTextBox on my form that i can enter my description into, then when i have finished i want to be able to save it to a memory stream as a .html file.
I then want to be able to read the source of the HTML file to amend the format of the description and then display it in a webpage?
Public Class Form1 Dim ScreenData(3, 4) As TextBox Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click FileOpen(1, CurDir() &
I am extracting a column with 8760 cells from an excel file to my graph in my vb application. I managed to open and close the excell sheet from my program. However, when I try to run my application I receive this message:
There is a large amount of information on the clipboard do you want to be able to paste this into to another program later?
Is there a way that I can avoid receiving this message when calling the data from the excell file?
Im trying to set up some error catching. So if the process errors out in the middle of reading a text file using a StreamReader, the file stays opened. What is a good way for me to close that file after the error? For example, here's some
i have a form with a listbox. the listbox can be edited (things added/deleted) and when the form is closed i would like the items in the listbox to be saved when the red "x" in the top right corner is clicked
I seem to have a problem in finding a solution to threads.I am opening a .PDF file via an <iframe> using vb.net. Then the file is opened, it is then moved to another location. But for some reason I am unable to move the file because it "The process cannot access the file because it is being used by another process." The only way round it i have found is to kill the process for Adobe Acrobat, so the file is released. Even if i fill the iframe with something else.How would I close the file, and stop that particular file from being accessed before the move ?
my program I want to load an excel file that contains the names and scores of a competition, store the values as a public variable, do some calculations on it and then store the values back on the excel file.
I have developed an application where some data will be automatically be updated in an Excel File. I need to autmate the application in a way such that there will be no manual user intervention.However once data is updated in the Excel file I get a save dialog prompt asking the user to save the Excel file. I need to know if there is any way to automate this part i.e. automatically save the Excel file and exit the application once data is updated.
I'm working through an example in a programming book and stumbling across a problem that I can't seem to figure out. The program in question is basically a very basic 'level viewer' for a tile based bitmap game (its a game creation book). The source code from the author was written for Visual Studio 2005, and I am using 2010. The source code imports fine and the program runs correctly.
I built the same program on my own, starting from scratch in VS2010. The program works like this: It opens a tile set palette (bitmap form), then uses an XML file to create a 'level'. The XML file indicates which tile goes where on the 'level'. The XML file is roughly 1.9MB and has roughly16,000 entries (the program creates a level that is 4096 x 4096 pixels using 32 x 32 pixel tiles).
Running and closing the program from source code runs exactly as expected. Running the program from my version runs exactly as expected. Closing it does not. It basically hangs up for about 2 minutes on close. (for reference every loads in about 3 seconds). I've determined that it is the XML file that is causing the problem by excluding the portion where it loads the XML. In that case it closes fine. If I cut it down to just a few records, my program closes fine as well. So it seems like the program is having trouble dumping the XML document at close.
I've tried to track down any differences between the source code and my code, and the only thing that I have found is that the References in mine are all using .NET version 4.0 and the references in the source are using mostly 2.0 and some 3.5 (System.Data.DataSetExtensions, System.XML.Ling.dll, and System.Core.dll)
The code for the entire form is:
Imports System.Xml Public Class Form1 Public Structure tilemapStruct
I'm sending a message on FormClosing(...)... This works ok. However... I have multiple tabs with a textbox or rtb, in it. When I change the text, whatever, it is modified. Now, when I close the app a messagebox appears that some of the textboxes or rtb's have been modified. This message is shown for each textbox-rtb-control. Which means, that when I have changed something in 4 different rtb's or textboxes I get the message 4 times. How do I change that to only one time?
I have no problem loading the contents of a text file into a richtextbox(rtb) with the below code. I can then edit and save the contents of the rtb to the file, and clear the rtb.
However, is the file still open? Does loading a text file into the rtb actually open that file? I am asking because I can't find any methods or techniques to close a file that has been loaded into a rtb. Is clearing the rtb the correct procedure?
Public Class Form1 Dim openFile1 As New OpenFileDialog() Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
Am trying to achieve a couple of things: merge a bunch of individual text files into a combined file, move the files that were combined into a new folder. I have assigned each of these tasks to a method. Something in the first method is hanging on to the file, even though I am closing and disposing the stream reader - but I can't figure out what. I know that a process from the first method is hanging on to the file because when I comment out the first method, the second method moves the files without a problem.
EDIT The first method is returning a value for new big file. This is passed as a parameter to the second method. When the second method tries to reference this file, that is when the program throws the error (5th line from bottom) Most posts on SO advise closing/disposing IO objects, but I am already doing that. They also advise using a third party tool to investigate what process is hanging on to a file, but I already know that it is the first merge method (because when it is commented out the program runs).
I'm reading a file and then closing it with the following code, but my problem is later when I start a batch process it says the file is still in use. Am I doing something wrong in closing it? The process was working fine prior to my adding this code to read the file.
[code]...
This rexx exec is trying to write to the file that I read from in the prior step before creating a PowerPoint presentation, but fails becuase of the lock.I'm at a loss. I should qualify and say the process actually starts, but fails in the rexxexec after it starts, it isn't failing on the process start the rexx exec issues a message that it can't write to the file becuase it is in use.
