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I've tried several variations of this. If the Cancel button is clicked on the dialog, an exception occurs, and a crash in an executable. I thought the "Exit" statement would take care of it. Not true. What I need is an error handler. In VB6, I used "On Error". I would prefer to not do that here.
I have created a WebBrowser and I want to catch the page that says "This program cannot display the webpage " instead of loading that page I want to display my own html code for that error. And also to catch error when loading an html page from a disk which is not present at all. (file not found)
View 7 RepliesI need a code for the open file dialog that if a file is not supported then a message box appears stating the error. This is my open file dialog code. [code] The message box pops up like it is suppose to, when you click ok the open file comes back up like it is suppose to. When you put in the correct file the message box comes back up again. Also the message pops up even if the correct file is put in the open file. but if you close the file dialog the image is where it is suppose to be.I believe the code for the public sub wrongfile is what is the problem. can some one look it over and let me know what changes are needed.
View 7 RepliesI type in openfiledialog1.showdialog() and it says theres in error when i have a openfiledialog on my form Please Respond Quick
View 3 Repliesi'm working on saving a text file.. the code i have, works without a question, no problem there.Imports System.IO
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With opeOuvrirFichier
.Title = "Ouvrir un fichier..."
.InitialDirectory = "C:FilmEtJeu"
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i got this error in my code when the program runs i dont know what am i doing wrong Datagridview Default Error Dialog The Following exception ocurred in the datagridview System.InvalidOperationException: Binding Source cannot be its own data source.
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I'm running in to a bit of a strange error with an application I'm writing. I have a number of shortcuts on my computer desktop that take me to my various folders (documents, music, etc) and have always been able to navigate using them when I open a file through applications such as Word. However when I use an OpenFileDialog box in VB.NET and select one of these shortcuts to take me to the file I'm after I am getting the following error message...
View 3 Repliesi'm trying to add textbox1.text as the file name for the save file dialog.. this code works fine when there are no invalid char inputed in the textbox. if there are, my app shuts down.. here's the code that i'm using:
Public Sub saveas()
With SaveFileDialog1
.InitialDirectory = Label1.Text
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What i am trying to do is open a save file dialog and write to a .txt firl the contents of my listview. so far:
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i have this, but i'm not to sure how to write to the .txt file i know i need to use a for each to loop the contents of the list view
I have an assignment due this week in which I have to make a app that has 5 buttons and a picture box. When each button is clicked it has to show the corresponding picture in the picture box, the fifth button closes the app.
I have the whole form set up the way it should be, but I have no idea how to write the code to make the buttons display the images and close the app.I have the images in a folder within the project folders.
I have yet to be able to find one, the one I found should how to do it using a file opener dialog and a folder browser dialog but that is not what I think my prof wants us to do, as that is more for a picture viewer app that lets the user choose the file of the image they want ot view.
All i want is for the buttons to be linked to specific photos that are part of the application itself and have them open.
I am using this, to read 1+ files from the openFileDialog, but I am having a problem getting just the file name, I can get the location "C:My Documentsfilename.jpg" but how do I get just the name "filename.jpg"?
I want to replace it with this line: can.Text = Regex.Replace(file, ".+\$", "")
vb.net
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
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Atm i have a webbrowser navigate to that url and then a save dialog popsup, default to IE i think.How would i get this file to download without a popup dialog ?
View 2 RepliesHow would I go about forcing a file to download from the web browser control so that instead of a file dialog box showing it will automatically download to a set folder?
View 4 Repliesim learning vb.net and i am trying to build a program for practice.in this program you can open word files with an open file dialog, after the word files were opened the document is added to a listbox. then you can open it again, but from the list box by clicking a Button. everithing is fine, exept one thing, even if i add 5 documents to the list,when i try to open them from the list it only open the last one thant was open by the open file dialog.
View 26 RepliesI have a project that will add the conents of a .txt file to a listbox but how would I make the program to open a browse for file dialog when a user click a button and then add the file to something to be read from like:
Dim accpath As String = My.Computer.FileSystem.ReadAllText(System.IO.Directory.GetCurrentDirectory() + "\somefile.txt")
I am having a funny problem with OpenFileDialog that I just cannot solve. Using VB.NET 2008 Pro.
Problem: I run my program and click the menu item associated with this OFD and the OFD opens fine. When I select a file and click OPEN the dialog disappears then reappears. I click OPEN again and it disposes itself then loads the proper file into a form. The same thing happens with the CANCEL button as well.
Question: How do I go about coding the OFD to open a file that has been double clicked on thus bypassing dialogresult.OK . I can't seem to find an answer to this.
I have the current code:Public Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
<DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
Private Shared Function SendMessage(ByVal hWnd As HandleRef, ByVal Msg As UInteger, ByVal wParam As IntPtr, ByVal lParam As String) As
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I am planning to use a shared variable to implement a logging facility. Have a look at the code below:
Imports System.IO
Public Class TestClass
Public Shared objError As New StreamWriter("C:Test.txt")
End Class
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I think I have found my answer here: [URL] "A static variable continues to exist and retains its most recent value. The next time your code calls the procedure, the variable is not reinitialized, and it still holds the latest value that you assigned to it. A static variable continues to exist for the lifetime of the class or module that it is defined in."
I am not convinced that this is the best way to create a logging facility.
I am trying to build an error handler for my desktop application. The code Is in the class ZipCM.ErrorManager listed below.What I am finding is that the outputted file is not giving me the correct info for the StackTrace.Here is how I am trying to use it:
Try
'... Some stuff here!
Catch ex As Exception
Dim objErr As New ZipCM.ErrorManager
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What is happenning is the .GetFileLineNumber() is getting the line number from 'objErr.Stack = New System.Diagnostics.StackTrace(True)' inside my Try..Catch block. In fact, it's the exact line number that is on. how I can catch the real line number the error is occuring on?
i have a method SaveRecord() in teh data access layer (DAL) that should return the status of the query execution to the Business Layer (BL)
There are three possible messages the DAL could return to BL: 1. Successfull Execution --> error NO: 12. Error: record already exist --> Error no:23. Error: SQL Errors while executing con.Open() or cmd.ExecuteNonQuery() --> Error No: 3
I'm planning to return error no to the business layer so that appropriate error message can be assignedd.
Is there any issue that my current technique might face becasue i'm not creating a seperate ErrorHandler class to assign those error numbers and error messages?
Should i create a seperate error handler class? If i need to create a error handler class should i create it in the DAL or BL?
i made a .exe launcher, i was able to launch a program named minecraft using the process.start. But this certain program generates error usually, so what i tried to do was get the window title of the minecraft and categorize if its an error or the actual game.
This is what i did:
Code:
So this transfers the window title of the launched program to a textbox then the "if statement" compares it and if its the error, it kills the error and relaunch the program. This is already a working program but i want to make the launching faster, the problem is if i hasten the interval of timer 2, it sometimes kill the non, error program that successfully launched. If anyone can help me, Hide the error or remove it please do help me. Im not yet an expert on vb.net but i want to learn from the best.
My job is requiring some visual basic programming and i've only programmed in C#.So i have this code:
Public Custom Event Command As JQDialogEventHandler
AddHandler(ByVal value As JQDialogEventHandler)
commandHandler += value[code].....
I'm getting the error: Operator '+' is not defined for types 'ControlesModificados. ControlesModificados.JQDialogEventHandler' and 'ControlesModificados. ControlesModificados.JQDialogEventHandler'. How can i write this code "commandHandler -= value" in other way so the error goes away! or how can i defined those operators for the eventhandler.
Namespace ControlesModificados
Public Class JQDialogButton
Inherits Button[code]....
As you can see the DialogCommand is using another JQDialogHandler, so i can't just use
Public Custom Event DialogCommand As JQDialogEventHandler
How to add application level error handler in vb.net win forms
View 1 RepliesIs it possible to write a Gloable or application wide error handler, how?
DanielI'm new to .Net, OPP and this forum but love it!
I have a Windows Form application that has a global error handler to display unexpected errors.
Namespace My
Class MyApplication
Delegate Sub ProcessParametersDelegate(ByVal sender As Object, ByVal args() As String)
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1) for the same deployed code, I SOMETIMES get line number in the displayed StackTrace error message and sometimes do not, even when the error message includes source code that I have written rather than a referenced binary. The project is compiled with a DEBUG configuration.
2) The application strangely minimizes to the tray when the error occurs (I thin it is unlikely that anyone can diagnose this issue w/o my more code posted, but I'll mention it anyways)
3) When I try to intentionally raise an error by, for example, dividing by zero hoping to test by global error handler, I get a dialog error message from the interactive debugger rather than jumping into my global error handler (which i want to debug because there is more to it than I posted.) Do you have any idea how to triggerand force teh execution of the global event handler?
Whenever I modify a file in the IDE in Visual Basic Express 2008, and then press the "Save" or "Save All" button, the "Save As" dialog opens, then says that a file of that name already exists and requests confirmation of the save. This didn't happen in Express 2005 as far as I remember.
View 3 RepliesI can't seem to get my 'Save' feature to work properly. It lets me choose save and lets me choose my desired save name but when i click on 'Save', a dialog box appears saying
"problemIllegal characters in path."
I'm not sure if it's code that i'm missing or code that shouldn't be there.
How would i go about closing my openfiledialog in the event that there is an error[code]...
View 12 RepliesI have a d.g.v. with two columns. One is set as date and the other is set as decimal. If there is a row and a number is typed in the decimal column, you can delete it and leave the cell empty. However, the program will not let me delete the contents of a date cell and leave it empty. It just gives me the default error dialog saying that I need to put the contents in proper date form and it doesn't let me leave it blank.
How can I make it so that it allows me to leave the cell blank?