Compiling And Running .NET Code Dynamically - ReferencedAssemblies Vs Imports Statements?
Jul 19, 2011
I'm not sure I understand the point of CompilerParameters.ReferencedAssemblies. I thought they could be used in place of using Imports statements.I'm obviously wrong because even if I set CompilerParameters.ReferencedAssemblies.AddRange( {"System.dll", "Microsoft.VisualBasic.dll"}) I still need to use Imports System and Imports Microsoft.VisualBasic in the script for it to work.
Are the Imports used only so that I can use MsgBox() instead of Microsoft.VisualBasic.MsgBox()?What if my script "Imports Something.OrAnother" from an assembly called Something.OrAnother.dll. Do I need to scan the script looking for all of the Imports statements and then add them (plus ".dll") to the CompilerParameters.ReferencedAssemblies before compiling?
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Jul 19, 2011
I am trying to add some scripting to my VB.NET 2010 Windows Forms Application.I have figured out how to compile and execute VB.NET code stored in an external script file from within my app using Microsoft.VisualBasic.VBCodeProvider.CompileAssemblyFromSource and InvokeMember. I can also pass and return parameters to the code in the script file.In VB6 using the VBScript Host control, I could expose instances of objects in my app to the code in the VBScript.How do I do this in VB.NET?I'd like to expose a form object (the main form for my Windows Forms Application) to my VB.NET script.I don't want to pass the form as a parameter via InvokeMember.[code]
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Apr 23, 2012
Public Class Form1
Imports System.Math
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load[code].....
For some reason, when i try to start the program im getting the following errors: Error1'Imports' statements must precede any declarations.C:Vb10sbschap05My Framework MathMy Framework MathForm1.vb25My Framework Math
Error2'Sqrt' is not declared. It may be inaccessible due to its protection level.C:Vb10sbschap05My Framework MathMy Framework MathForm1.vb1018My Framework Math
Im using Visual Basic Express 2010.This is from a tutorial in Microsoft Visual Basic 2010 Step by Step
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Jan 27, 2010
I am using CompilerParameters to dynamically compile code... The problem is when I use:
cp.ReferencedAssemblies.Add(CompilerPath & "est.exe")
to add a reference to test exe ... (where CompilerPath is the full path name)
Compiler Path is not the Compiler Application Path
I get an error when compiling stating that:
vb
"Could not load file or assembly 'test, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified."
If I put it in the test.dll in the "compiler apps" path and then call ReferencedAssemblies.Add with the full path it works.
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Jun 26, 2009
I have been compiling applications from my main program using the following code [code]It works fine for building console applications but I want to add a resource into it. However I get Resources Is not a member of My. in my app cause it is a console app and can't have that property etc.
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Nov 8, 2011
When I dynamically compile SilverLight 4.0 application using Microsoft.VisualBasic.VBCodeProvider, I get the following error.
Line: 118 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
Line: 130 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
Line: 141 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
Line: 234 ErrorCode: BC30002 Error: Type 'System.ComponentModel.Design.HelpKeyword' is not defined.
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Apr 21, 2009
I'm trying to use ADO to create several tables at once, into MS Access. Is it possible to do multiple statements in the one operation?[code]This fails due to a "Syntax Error in CREATE TABLE statement", although each of the create statements work on their own perfectly. Is there a way of doing this sort of thing? There will also be statements to add constraints, add indexing, etc., and I'd really like to be able to do it so that I don't have to split up the string into separate parts.
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Aug 3, 2009
It looks like this: Itis stripping out HTML characters.
Imports System.Text.RegularExpressions
Function GetTextFromHtml(ByVal htmlText As String) As String
[code].....
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Apr 23, 2011
After reading a couple of tutorials, it seems that basically NET works quite like java. All the IDE's produce an intermediate code that I have to distribute, and which NET compiles at runtime to machine code and then executes it. Leaving aside the question why so when NET works only on Windows platforms, I have some other more practical questions:Is it possible to directly compile to machine code targeted at specific platform like XP 32-bit or Win7 64-bit?
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Oct 15, 2010
Is one able to compile VB 6 code in Visual Studio.NET ? In other words, is it backwards compatible with older VB code?Since I know there is a difference between managed code (.NET) and unmanaged code, I am wondering if Visual Studio.NET is able to compile unmanaged code as well?
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Nov 20, 2010
I always make back ups of my projects in case I'll really really mess up on the way and want to go back to more stable version. I've tried running one of my back ups few days ago and ended up with importing pfx key canceled. What exactly is pfx key? And what do I do to have my code compiled?
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May 7, 2009
I've been using this article [URL]to add into my code the ability to compile code a user enters into a text box. I was wondering if anyone knows a way that I can pass in a variable that exists in yhe program that I have written. So the idea is in my program I have a variable, let's say a filename, that is used. The user of my program is writing their own program in a text box. When I compile the program they have written I want to be able to pass the filename from my program into theirs.
[Code]...
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Mar 6, 2010
I have an .exe file in C++ (gunmake.exe).And... Check it out:
Dim dirNow As String = Directory.GetCurrentDirectory()
Dim dirFile As String = dirNow & "systemgunmake.exe"
FileCopy(dirFile, "C:GunMake2sharpgunmake.exe")
That's what I'm doing to work with my .exe in VB.net.Is there a way to put my .exe into VB.net code?I say. All in one .exe by VB.net?No need to use the two files. :X
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May 3, 2012
I wanted to provide programming support for an application I made. So I used System.CodeDom compiler and it allows me to execute vb.net code on the fly.The way it works is :
- I call the engine and pass references and code that it needs to run
- The code is able to access public subs
- results are obtained after processing completes.
[code]I want that if the code is being executed by user on seperate threads at the same time then their values should be independant. Right now this is not possible as module has been used and not classes.What I want is -> create object of class RunCode, it runs user code and returns. Thus the age variable in class runcode is not tampered with if at the same time another code is executed. But for that module module1 has to be a class also and how can user call Age sub if its a class. I mean user should be able to call all subs/functions by name and it should work like it was working right now.
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Jun 30, 2010
i have written a c program for calculating some financial task It accepts the input file name or path name from the user processes it and displays the output in 6 output files. i want to execute the same c -source code using visual basic .net.I want to know how to compile the c source code and execute it .
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Jul 15, 2011
I would like to know how I could generate code from a text file in a particular format into a VB.net or C# source file.I would like my code generating program to read text file having the following format:[code]The idea is to compile the main code after the user have modified the txt file and used the code generating program. I would prefer to write the code generating program in C, python or C#.
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Apr 8, 2010
I did a search for "How do I implement Serial COM Port communications? and found a response by Xiaoyun Li which was last posted on April 10, 2009. Xiaoyun's response included sample code. My intent has been to get a clean compile on the sample code, then test it, then expand the code into a real application. I am down to a single error message, which I can't figure out how to resolve: "Method 'Public Sub DoUpdate()' does not have a signature compatible with delegate 'Delegate Sub EventHandler(sender As Object, e As System.EventArgs)'." [code]I marked where the error occurs in the code with *** to the right of the error line.The code is attached to a simple form, Form1 which contains a single text box, TextBox1.It appears to me that the code needs a Delegate statement, but I can't figure out how to code it or where to put it.d.
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Feb 15, 2010
In one of my forms witch I imported from VB2008 there are all properties saved in the *.resx file. One Property, of the Type System.Windows.Forms.Keys, can contain the Value 'Ctrl+F1' witch compiles fine in VB2008, but not in VB2010. To reproduce, simply add the following to any resx file:
<data name="cmdFenster.ShortcutKeys" type="System.Windows.Forms.Keys, System.Windows.Forms">
<value>Ctrl+F1</value>
</data>
It will compile fine with VB2008, but not with VB2010. Notice: The VB2010 also generates this Code in the resx file
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Feb 2, 2012
I am trying to write code with IF statements for a payroll calculator. The first IF statement is getting a bit confusing. I have three text fields that I want to ensure have data before proceeding with the next set of code. This is the part I am not sure I am doing right.
IF IsNothing(txtHoursWorked.Text) OR
IF IsNothing(txtEmpName.Text) OR
IF IsNothing(txtHourlyPayRate.Text) Then
[code]....
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May 5, 2010
can anyone give a sample code for select case statements under a button click event?
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Oct 11, 2009
Can someone give me a site to a tutorial that will help me write a program that will generate a pattern using do while, if else statements,and do until statements. I have been using google but I can't find anything. I need to generate patterns a certain size 6 by 6 or similar such as something like a checkerboard but where the ^ symbols is there a suppose to be a blank space..
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Mar 27, 2011
basically just trying to use if statements for my code so people cannot enter the wrong information like letters into the account number box
If (txtAcountNumberInput.Text = "") Or (txtTelephoneNumberInput.Text = "") Or (ComboBoxPhonePlan.Text = "") Or (txtCallDuration.Text = "") Or (txtCallDate.Text = "") Or (ComboBoxCountryBeingCalled.Text = "") Or (txtTimeAsCustomer.Text = "") Or (ComboBoxEveningCall.Text = "") Then
[code]....
so you see up the top i have if all any fields ="" then error that's fine it's a problem i need to so if statements so "account number" and hone number" cant be letters etc and if they are a error box will come up how i have done it does do that but ti still continues down the code hence cashing when getting to declaring things how to fix this?
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Aug 4, 2010
I'm getting a ton of errors like this when attempting to build an empty VB.NET project: 'GenerateCodeAttribute' is ambiguous in the namespace 'System.CodeDom.Compiler' Is this some problem with my .NET installation?
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Feb 15, 2009
I have a program that runs some code when i click a button on a form when done running the application ends. I want to automaticaly run the code when the users clicks on the exe. I have put the code that i want to run in the startup forms load event but that doesn't start
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Jul 6, 2011
i was trying to make my service act dynamically... i have set time for my service about for 2 min ,if suppose it was doin huge amount of work means it will exceeds that 2 min time limit then we need to check the service condition if work is pending means we need to run that instance until upto finish.
public static void StartService(string serviceName, int timeoutMilliseconds)
{
ServiceController service = new ServiceController(serviceName);[code]............
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Feb 16, 2010
I have written following code to dynamically create menu items
<asp:DataList id="MenuList" runat="server" RepeatDirection="Horizontal" >
<ItemTemplate>
<td width="10%" class="menu_font" align="left" >
[code]....
Here TD width is hardcoded to 10%. I would like to set the width from code behind.I am setting text for menu item from code behind as follow
Private Sub MenuList_ItemDataBound(ByVal sender As Object, ByVal e As DataListItemEventArgs)
If e.Item.ItemType = ListItemType.Item OrElse e.Item.ItemType = ListItemType.AlternatingItem Then
Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
[code]....
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Aug 4, 2010
I have an app that allows a user to type in code that can be executed much like vba code in the office world.I currently execute this code with the Proprietary Dexterity code used with MS Dynamics - GP.However, my users need to be able to run outside the Dexterity world.The easy answer is to allow them to type in vb scripting or vb code instead of dex code.However, I can't find an easy way to dynamically execute their code within my methods.CodeCom looked like it could be the answer, but If i'm reading it right, I would have to know what libraries the user is using in their code for vb.Thus, I thought to simply limit them to vb scripting.Unfortunately, I can't find a way to execute vb scripting from within vb, (all the articles are ancient and most links fail - thus I gotta believe there is an easier way).I'm at a deadline where I developed the prototype but trying to use sql statements failed miserably when trying to execute.
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Jun 15, 2011
I have a web form but I have to do this by code since I dont know the number of hyperlinks I need from the beginning.How can I add some hyperlinks with Image in a label, the number of hyperlink depends on the number of rows of a query, and each row give me the link information to navigate.
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May 24, 2009
How can I create a toolstrip in code and Add controls to it as required?
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Mar 17, 2010
Here is my xsl:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
[code]....
The problem is the class="pass_section" in the xsl. I need to set that value dynamically in the VB code (meaning put a run-time value in the xml to set it).
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