I am having a problem while compiling one of my projects in vb.net. I have a solution consisting of multiple project,one of which is the exe. Now when i am trying to compile that project i get an error which states
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I have a Linq-to-SQL class diagram in my web application containing the two tables in my database (held in a DBPro database project in the same solution). All was working fine yesterday. I start doing some work tonight and note that the solution compiles fine in Visual Studio, but when I run the web app I get a compilation error:
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: BC30002: Type 'FrostAlertDatabaseDataContext' is not defined.
[code]....
Today I investigated a logical bug in our software and figured out that this is related to the way VB.NET thread variables inside a loop.Let's say I have the following code:
Dim numbers As New List(Of Integer) From {1, 2, 3, 4, 5}
For Each number As Integer In numbers
Dim isEven As Boolean
[code]....
The problem is that isEven is declared but not assigned.In this specific case, it would be correct to write dim isEven as Boolean = false but I haven't done this.In VB.NET, a variable that is declared inside a for loop keeps its value for the next itaration. This is by design: [URL]but this is also dangerous pitfall for programmers.
However, until now, I haven't been aware of this problem/behaviour. Until now.Most of our code base is C# anyway, which doesn't allow the use of an uninitialized variable, so there is no problem. But we have some legacy code that is written in VB.NET that we have to support. So the best thing would be to generate a warning or even an error in this specific case.But even with Option Explicit / Option Strict this does not generate a warning / an error.Is there a way make this a compile time error or maybe a way to check this with FxCop?
Why can I do the following :
Dim qNodes As IQueryable(Of XmlNode) = xDoc.ChildNodes.AsQueryable()
Dim test = qNodes.Where(Function(node) True)
although the following gives the error I stated in the title :
Dim qNodes As IQueryable(Of XmlNode) = xDoc.ChildNodes.AsQueryable()
Dim test = qNodes.Where(Function(node)
Return True
End Function)
Dim box As MultiTextBox = New MultiTextBox
Dim i As Integer
for i = 1 to 3 Step 1
lengthWidthHeight = MultiTextBox.GetItemValues()
Next i
This excerpt of code is using the NXOpen API. In the NXOpen API, the MultiTextBox class is public. However, when I compile the code I get the message:
'NXOpen.UIStyler.MultiTextBox.Protected Sub New(ptr As System.IntPtr)' is not accessible >in this context because it is 'Protected'
My question is, how am I getting an error about protected scope? Could it also be that the API documentation is incorrect?
Is there some clever way of getting the date and time of when the dll was built/compiled?
I'm using the assembly version numbering and reflection to retrieve and display this info when the app is deployed. But in some scenarios it would be more convenient to know when then dll was actually compiled rather than the auto incrementing version number. I don't think the modified date on the dll file itself is reliable due to the way the app is deployed.
Dim assemblies = AppDomain.CurrentDomain.GetAssemblies
Dim assemblyName As String
Dim assemblyVersion As String
[Code].....
Basically I am creating a program and would like it to run in compile time as opposed to the standard run time?
View 1 RepliesI want to have a bunch of different screens, yet I don't want to have to use 20 different forms (I'm pretty sure that's bad practice anyways), and I don't want to lay down all the controls at once in the designer because then things get messy. I had an idea of running a sub on startup that would dynamically generate all the controls I need with all the right coordinates and settings, and then dump al the ones needed for a specific screen into a Panel. Then I return an ArrayList of panels, and pull out the correct panel to attach to the form when I need that screen. The only problem is that my form will not have any implicit knowledge of its controls, so I'm assuming I wouldn't be able to use the WithEvents / Handles. keywords to declare handlers in the form class (which is what I'd rather do).
View 3 RepliesI've been building tools for ArcGIS. Part of ArcGIS is toolboxes which is basically a collection of tools bundled together. I know how to make toolboxes, but the code I have runs within Arc itself - ie. currently it only runs when you actually start Arc up and run a tool which makes the toolbox.
In theory the code should be able to run outside of Arc and ideally I want it to run at compile time. I know you can run executables as pre and post build events when building the installer so I was thinking I could make it build the toolbox as part of one of these. Catch is, the executable code would need to have access to the compiled files of my project (it needs a link to each tool to build the toolbox) so I can't make the executable in a seperate project. The current project is a class library. Is there a way to run code within my project when building the installer?
Depending on a preprocessor directive, I want to set all properties in a class to EditorBrowsableAttribute.Never.
I thought about creating a custom attribute, derived from EditorBrowsableAttribute, but unfortunately that class is sealed.
I've had a look at ICustomTypeDescriptor, but in the GetProperties method, I can get hold of each property descriptor, but the attributes collection is readonly.
I may have a difficult question here. I am working on a Generic class that is meant to work specifically with Enum's. Right now, I get the type of the Generic on instantiation and make sure that it is an Enum and throw an exception if it is not. So:
[Code]...
[code] i get an app error when running the app, because i didn't set the ID.I was wondering if there's a way to make sure the programmer assigns all properties in the class,and fail at COMPILE TIME rather than have to catch the error at runtime...
View 2 RepliesWe have a project for a client that is written in VB.NET. In one of the projects, we have about 100 modules, which are all VERY simple. They're extension methods that convert between object types. Here is a small snippet:
Public Module ScheduleExtensions
<System.Runtime.CompilerServices.Extension()> _
Public Function ToServicesData(ByVal source As Schedule) As ScheduleServicesData
[code].....
I have a code below to make collection that bind to a gridview able to sort by clicking on the column header. The problem here is "IPerson" is unknown at compile time. I want the delegate type able to decide by getting from gridview datasource.[code]....
View 1 RepliesToday I discovered that something I had assumed about VB.NET for many years was not true (worrying!). I assumed that a variable declared within a loop had a lifetime of the iteration it was declared in, but in fact it seems it has a lifetime of the whole procedure.[code]I had assumed an output of False, True, False, True but instead it is actually False, True, True, True..In C# the equivalent code would not compile as you would get a compile time error of Error "Use of unassigned local variable 'var1'".I realise there are many ways to fix this and that best practice would be to declare the variable outside of the loop and reset it at the beginning of every loop through.I find this behaviour so counter-intuitive to me that I would like at least a compile time warning in VB.NET when/if I do this. (I could also then set this on any projects I already have and get warning that would allow me to check that my assumptions aren't causing errors).Does anyone know how/if I can get this to generate a compile time warning in VB.NET? Am I the only one that finds this counter-intuitive?
View 1 RepliesI get the following error message when I try to compile anything, I've tried creating several different projects and they all do the same thing. does anyone know anything about this and how to fix it?
Error2An error occurred while signing: Failed to sign bin\Release\app.publish\\setup.exe. SignTool Error: Signtool requires CAPICOM version 2.1.0.1 or higher. Please
copy the latest version of CAPICOM.dll into the directory that contains
[code].....
I had weird compile errors. When I opened a project of mine today, suddenly I received over 100 errors. It gives even error for try catch, foreach and all those functions under system and Microsoft.VisualBasic namespace. I have also class libraries and although references are looking added, main project doesnt recognize references as well. I tried clean solution, rebuilt solution, cleared my aspnet tmp folder, re-added references but no help. what could be the problem? anyone experienced such problem. my VS2010 isnt spoiled because any other project works fine,even with same class libraries.
View 2 RepliesI'm trying to do a multiline If,then, else statement and I keep getting the Compile Error code "Block if without End if" This is part of my code (the rest is the same just repeated)
If ActiveCell.Value = 1 Then
ws2.Select
Range("A3").Select
ActiveSheet.Paste
[code]....
We have a compilation with GC.KeepAlive (Object) method.When we try to complile, there is an error GC variable not defined.We try to reference mscorlib.dll manually in the project but it doesn't work.
View 5 RepliesI am programatically creating a virtual directory for a new project deployer. The creation is fine and the setting are all exactly as I want them, however IIS Administrator shows ERROR. If I open the properties for the virtual directory and change the ASP.NET version from 2.0 back to 1.1.4322 and hit ok then refresh it will compile and show all the files properly.
Private Sub CreateVirtualDirectory(ByVal Path As String)
Dim IISSchema As New DirectoryEntry("IIS://localhost/Schema/AppIsolated")
Dim CanCreate As Boolean = Not IISSchema.Properties("Syntax").Value.ToString.ToUpper
[code]....
i am using vb6 and sql express. came to this error when i press the update button it says "compile error invalid qualifier". the error is at " live.tostring("dd/mm/yy") "
private Sub cmd_update_Click()
Dim conn As New ADODB.Connection 'ADODB Connection Object
Dim recset As New ADODB.Recordset 'Recordset Object
Dim sql As String ' String variable to store sql command
[code]....
I am teaching myself VB.Net at the moment but seem to be doing something wrong with ShowDialog. It pops up twice when I run the program. I do not get a compile error. [Code]
View 10 RepliesI am compiling a program from my own program using VBCodeProvider and everything was working well but somewhere along the lines I changed a reference option or something and now everytime I try to build my child program I get the error
Error: BC2006 'option 'res' requires ':<resinfo>';
Does anyone able to advise on abovementioned error? Under Private Sub UserForm_
[Code]...
I'm using Visual Studio 2005 (college only has 2005 so..) and I have a very important program to write for college.My problem is, every time I try to compile I get the error: "Error while trying to run project: Could not load file or assembly "Program" or one of its dependencies. The given assembly name or codebase was invalid." We're talking a very simple program - I've only been learning for a few weeks.
View 7 RepliesI've found that when trying to compile any program I receive this error on build:[code]I've tried reinstalling/repairing VS, resetting my settings and changing the target framework with no success. I even tried installing VS on another PC (both are running win 7 Pro 64 bit) only to still receive the same error.
View 3 RepliesI am trying to read all selected items from a listbox in Visual Basic.
Dim x As Integer
Dim testValue As String
testValue = "20"
[code].....
I'm trying to compile a brand new 2010 windows forms application with a form and a single button that should display a msgbox with "hello" in it.When I try to compile I get the error message:
Unable to write to output file <filename>: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
I have been developing a Visual Basic 2010 .NET GUI based control application that has been growing over the last six months into quite an albatross. Suddenly, I have reached a brick wall where I cannot even edit a text label in the GUI without the following exception at compile time (debug) :
InvalidOperation Exception was unhandled
An error occurred creating the form. See Exception.InnerException for details. The error is: Index and count must refer to a location within the string.
Parameter name: count
This is entirely code independent - it happens if I simply drag a new control onto the GUI without even any code behind it - Once it happens the project is hosed - even if I undo or remove what I did.I have reinstalled VB from scratch on a new computer, and same problem. I am using Windows 7 and this happens with VB Express, Even with a trial version of Visual Studio Ultimate. I am completely stuck.
I am trying to read all selected items from a listbox in Visual Basic.
Dim x As Integer
Dim testValue As String
testValue = "20"
[code]....
is the code I am trying. But When I run the code, I am getting "Compile error : Method or data member not found" I guess I am missing some references to use "ListBox.Items" method right?What is the required references/library.
