I have been trying to build the "Testing a class lesson, but the Set as StartUp Project line in the Project menu does not exist! I have redone the entire project 7 times, always the same response! # different computers, all with registered versions of VB. Why does this problem persist?
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I am learning Visual Basic Express 2008. When I follow step #5 below, the option Set as StartUp Project does not exist. How I can accomplish this. To create a test project for your class. Open the Persons project that you created in the previous lesson. If you did not save it, you will first have to go back to the previous lesson, Adding Methods to a Class, and complete the procedures.
On the File menu, point to Add, and then click New Project.
On the Templates pane in the New Project dialog box, click Windows Forms Application.
In the Name box, type PersonsTest and then click OK.
A new Windows Forms project is added to Solution Explorer, and a new form appears.
In Solution Explorer, select the PersonsTest project, and then on the Project menu, click Set as StartUp Project. In the Solution Explorer, select the PersonsTest project, and then on the Project menu, click Add Reference. The Add Reference dialog box appears.
Click the Projects tab, and then select Persons and click OK.
Double-click the form to open the Code Editor, and then enter the following declaration just under the line Public Class Form1.
I want the oppisite of
If My.Computer.FileSystem.FileExists() Then
end if
I have a Windows Form in which I started two threads and then close the form and threads continue their works. How can I abort first thread when the second thread stops?I made the first thread IsBackground,but the second thread is not the only thread of program and the first thread is started in another thread(form) that is closed and not exists anymore,in addition I can't set Flag of a Class that doesn't exist.
View 3 Repliesi read that WindowsFormsApplicationBase, is in the Microsoft.VisualBasic.ApplicationServices namespace
Do I have to really add the full-blown Microsoft.VisualBasic.ApplicationServices just to get WindowsFormsApplicationBase in c# ? What's the consequence on the size and performance of my c# app if I do so ?
It was there in VB 6. I have some images that I'm going to use a buttons, and I did this in VB 6 with the image control. however, this control doesn't appear to exist in VB.NET 2008 Express. I guess I could use a picture box, but isn't that overkill for such a simple task?
View 3 Replieswhen people first run my program (as in the FIRST EVER time they run it), I want a window to popup (Form4). In this Form you have to locate a directory to a certain program (my program uses this program) and press OK, and then that will generate a .txt file with the directory to the program. (So that my program knows where that program is located.) Now, what I want it to do is when you open up the program, upon load (Form1), I want the program to check if that text file (directory.txt) exists. If it does and the path in the file is correct, the program will run fine. If the text file is missing and/or the directory doesn't exist, it will bring you back to Form4 (assuming that this is your first time running the program since the directory.txt file doesn't exist).
View 5 RepliesI want a message box to show when a username doesn't exist. I figured this would work but an error shows saying 'FileNotFoundException was Unhandled', for the fist line.
Dim UserFile As New System.IO.StreamReader(sPath & "" & UsernameBox.Text & ".txt")
Username = UserFile.ReadLine
Password = UserFile.ReadLine
[Code].....
I'm trying to use a single event handler for several controls in an ASP.NET web page. I would like to add the event handler at runtime if and only if it doesn't already exist. In C#, I would write it as seen below:
if (myTextBox.OnTextChanged == null) myTextBox.OnTextChanged += DoTextChangingValidation;
Likewise, I know I can remove the event handler as follows:
if (myTextBox.OnTextChanged != null) myTextBox.OnTextChanged -= DoTextChangingValidation;
[code].....
I am trying to add a registry key in to the file "MyApp" which doesn't yet exist in the registry key directory, when I try and write this key however I get an error from the debug console telling me the "NullReference was unhanded". If I go and manually make this folder it works brilliantly, I thought that this code would make the folder as well?
[Code]...
What i need is, if a item in a listbox Doesn't exist, it needs to remove it from the other.
In the pic i have attached. Basically If it doesn't exist in Listbox2 then it needs to be removed from Listbox1 and tell the user which one has been removed.
i.e Test 02 doesn't exist. So messagebox would show "test02 has been removed" then remove it from listbox 1
It probably something simple thats sitting in the back of my mind, but for the life of me can't figure it out lol
I'm copying code from one VB project to another PC but the 'datagrid' on the copy insn't inserting into the new PC. When the form loads the datagrid is missing. The error I got was that there was something missing from the machine. When I tried to add the datagrid using the 'Additional Controls' it doesn't seem to exist. Any chance I can download the control? The version of VB is 6.5 and its part of a graphics package I'm using.
View 2 RepliesMine is a simple conexion problem but I dont understands what's happening I have another form in the same project which has no problems at all, I desided to create a form to use it as a base form named plantillav only to duplicate forms and intance the others from that one I put it's Modifiers Property = Protected in ortder to modify property values in the other ones I don't know if the process generated a failure.
I created the following strconn:
Public
Class
clientesc
[CODE]...
This table was exported from phpmyadmin (wamp) so it means is created and even with registers inserted directly from console, the problem is when I send from the application, with the following error that indicates that the name of the field doesn't exist or is not well written; Unknown column 'code_empleado' in 'field list'.
In this code block, the datarow gets the row number of the username that was used to log into the system with, right? And in this code, if there is a username/password that was matched with in the database, it'd place it on the dbUsername/dbPassword variables and compare it with the ones that were inputted by the user.What if I wanted to know if there is none of that username (like, username doesn't exist from the database)? I tried inputting login info that doesn't exist in the database and it resulted into the following error:An unhandled exception of type 'System.IndexOutOfRangeException' occurred in system.data.dll
[Code]...
I am trying to import a flush component in a Form but in Choose Items... in the list of Com Component, Shockwave Flash Object deos not exist.
View 2 RepliesIm developing a program that adds any number of tabs for each directory that contains user specified information and also adds a list view control on each tab that shows the files contained in said directories. I want the user to be able to double click a file in the list view(s) to open it.
View 2 Repliesim trying to generate an error message to the user to let them know a file doesnt exist.So far ive got the user to enter the file name into a textbox, they click search and if successful will load a new form with a PDF file reader built in( AxAcroPDF1 )everytime i enter the right file name i get the file loaded, if enter the wrong name the File page still loads with no pdf and no message saying file doesnt exist.
Private
Sub PictureBox1_Click(ByVal
sender As System.Object,
ByVal e
[code]....
I have recently published a simple text editor(just as an exercise). the editor has been published using Microsoft Visual Basic Express. Once the program is installed i wanted to make it a default opener for .txt files, so i clicked openwith ->Choose default program and then i was asked to show the location of the .exe. It seems like the .exe of my installed program doesn't exist. where the .exe is on a windows7 or tell me of another way of makeing that program the default opener.
Here is the link to the publish page: [URL]
I have got some code that is working as i have edited the game.exe at a certain address, now i know the code can find the address, but I don't know how to make it stop searching for it if it isn't there.
here is the:
code:
So what I want to know, is how to stop this code, if the address doesn't exist.
I'm using vb2008 and database ms access.
I want to know if exist in the Debug folder in my project Database access
I am using VS2010 VB.NET, working on a solution that has a number of projects. I have been developing on it for a while now, and in an attempt to debug a custom class inherited from ObservableCollection (which by the way would not load symbols when debugging even though it was apparent that the breakpointed line was being called), I changed the startup object for the startup project to a different WPF window which I had a couple of controls that I set aside for debugging.Immediately I was confronted with 'Sub Main' was not found in . I tried changing the startup object back to the normal startup window, but now the Startup Object dropdown only has "Sub Main" as it's only option. I changed the StartupURI back in the App.xaml, to no avail.
View 2 RepliesI want the location of the current execution project i.e in VB.NET/C# or the current class file's path? Ok,let me elaborate i got 2 projects in one solution file,lets say A,B are projects, my startup project is B ,and im accessing a class file in A ,now i need to know virtual path of B. because i need it for accessing the resource file coz error pops up when using ExpressionBuilderContext
View 3 RepliesI have a project in VSTO/VB using a BackgroundWorker that works fine. It is a form that calls for a web page of information. The web page can take a while, so I have the form calling with the BackgroundWorker.I then have an Excel Addin project that has added the BackgroundWorker project. When I call up the form from the Excel Addin project and use the BackgroundWorker to request the web page, it grabs the web page ok. But the work done upon completion, during the BackgroundWorker1_RunWorkerCompleted method, is resulting in an error message:
View 2 RepliesIm trying to get the startup path in a console project I have this
System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly.Location())
but that only includes the folder, i need to add that application to that.
How would i get the applications startup/project name?
I am looking how to set events to a webrowser which is being created by the following:
[Code]...
I am wanting to change my startup form for my application in Visual Studio for VB.Net. I double clicked "My Project" in the Solution Explorer and then clicked on the Application tab. For some reason I only see 12 forms out of the 6 forms I have in my project when the "Enable Application Framework" check box is True. When the check box is False I see all my forms, why?
View 9 RepliesCan I have Two basic Questions about Setup Project deploying -
1, After I put company's logo at startup installation, there was still text shown up "Welcome xxxx setup.." together with the logo, how to remove it and display company's logo only? Also, if using text display and the text is too long, how to return to next line?
2, If I setup more than once, I was told to remove the first one using Add/Remove program in Control Panel before setting up new program. How can I use a dialog like "Overwrite the existing program"?
I try to find online any example for create an application autoupdate.
When I run my application it check in a webserver if exist new version,if exist the software run update.
I have attached my project. I have made a web browser I don't get any errors but it doesn't run/debug.I don't know why but i checked everything. If somebody could tell me what's wrong with my project it would be awesomeBill Wiz, on 17 June 2012 - 12:30 PM, said:I have made a web browser I don't get any errors but it doesn't run/debug.[url]...
View 3 RepliesI am using Visual studio 2008. I didn't see a place to post questions about this . I am creating a mobile application, at run time the executable itself is not updating to show the changes from source code i have written. I feel there must be a setting or something in visual studio .
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