Modifying Code During Runtime?

May 7, 2012

since upgrading from 2008 to 2010 i have seen an issue where i pause my project,modify some code, resume, but the app does not execute the new code, it continues as if nohthing was changedery strange, very frustrating

for example
if i pause my app and change this to



Modifying Parent Containers Before Runtime?

Jan 31, 2010

i'm working on a program and i'm working with panels, and i'm very frustrated because I want to bring a panel to the front of the form but because of its parent it is locked into another panel.... in the properties for the panels there is no Parent container option though the only way i know how to modify parents is during runtime like this Panel1.parent = Me

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Modifying Code To Enable DataGridView

Nov 5, 2011

I'm testing the code below from another author, which works well for reading in the data. Despite this, once the data is populated I also need the DataGrid to be able to accept and delete data too. Is it possible to modify the code for this? I tried several things (in properties too) but am not sure if it is possible in this example.

Dim statesXml As XElement = _
<state name="California">
[Code] .....

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How To Break Dependencies Without Modifying Production Code

Jun 17, 2009

From my initial readings on unit testing it is wise to put all of your setups and tests in a separate project from the code being tested.I've recently begun reading The Art of Unit Testing, trying to discover how to break dependencies on things such as database calls.The methods offered involve changing areas of the test code, such as adding specific interfaces and "stub" methods to the production code.This seems to defeat some of the good things about keeping tests and production code separate.Is there any recommended dependency-breaking technique that doesn't involve changing production code?

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Modifying Code To Integrate A Function Procedure

Jun 4, 2009

I'm trying to modify this program so that a function procedure determines the student's grade. The problem is, I don't even know where to start. here's my current code:


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Modifying Program Means Modifying One Aspects

Mar 16, 2011

Locality Not repeating code..Modifying program means modifying one aspects.

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Modifying Stanav's Code That Would Cause The Output File Not To Be Outputted ?

Jun 14, 2009

I modified some code to suit one of my other programs, but have come across a difficulty: For some reason, the output file is not outputting. I can tell all the calculations are being made (my computer is loud), but it's just not outputting.What should I look out for when modifying stanav's code that would cause the output file not to be outputted ?

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Communications :: Modifying Existing Code For Serial Communication?

Sep 21, 2009

I've seen this great example of serial communication in VB.NET


I try to use it in a project I am working on but somethings are not clear to me.

1: Now the send and received data is shown in one RichTextBox but I would like to split this into two RichTextBoxes (RtbSend and RtbReceived).It is unclear to me how and were data is assigned to the RichTextBox?

2. the received data is shown in the Richtextbox as one long line, I would like to get a new line for every send message.So for example: I I send "test" four times, I would like to see:


now I see: Test Test Test Test I've tried ctrlf but this does not work.The example describes that "comPort_DataReceived" is executed when data is waiting in the buffer. Where can I see the eventhandler responsible for this? How does it know data is waiting?The problem is this kind of coding is a bit to difficult for me. I want to understand the code before I implement it into my project.

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VS 2008 Directly Modifying Data On SQL Server From VB Code?

Dec 12, 2009

I'm trying to update some data fields in an existing data table, and want to access the data directly. I know it's possible, and I used to do it years ago in VBA, where you could do things like


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Databinding An Object Property And Modifying Another Property In Code?

Jan 15, 2010

on a Windows Form, an object myObject is bound to myObjectDataBindingSource like this:myObjectDataBindingSource .DatSource = myObject on the form, i have a check box bound to the property: chkProp1 for example of the object: myObjectDataBindingSource In the code when the checkbox is clicked, I need to go in code and change another text property of the object txtProper2 for example like this:

Private Sub chkProp1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chkProp1.CheckedChanged


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.net - C# How To Add A Code To Execute At Runtime

May 31, 2012

I know this requirement may seem weired to many of you but it is one of my project requirement.Is it possible to add code in Sp and execute in .Net exe. Like on button click i call one SP that SP returns few line of code and then program execute the code.

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Add Controls AND Code At Runtime

Jan 15, 2012

"add controls at runtime" how to add code to the controls. kinda useless with no code, ehh? all results only told me how to add the control, that's it. well, this result is different. i will teach you firstly how to add controls at runtime, then how to apply code to them at runtime

Firstly, add the controls:


Now run it. do you have a button on the form? if yes, excellent. if not, you made a mistake. try again now how to add code? you may have noticed that when you double click on any control, it says private sub button1_click(blah, blah, blah) Handles where it says handles is what determines when the code executes under what event for what control (in this case the click event for the button1). this won't work when adding code at runtime. did you notice in the above example i added a with event, and addHandler? this is what creates the handler (same as Handles

Now we add the code for the runtime control


Above, the addressOf button1_click tells the program to execute the sub button1_click when the button is clicked on (as determined by .click) but i know what you're thinking! your thinking "why would we even BOTHER doing this at runtime? isn't it easier to do it at design-time in the first place?" yes it is, providing your not writing a plugin. plugins are code based, not GUI (also reffered to as WYSIWYG). to update existing forms using plugins, you need to use this method.

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Execute C# / Code At Runtime?

Apr 11, 2011

Been spending some time on recently and it crossed my mind; how do they execute the code you have created (Specifically pertaining to C# and VB.NET) ?

What I am basically wondering is how would I take a textbox on a form type some code in it and then run that code? Is this possible without 3rd party tools?

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.net - Executing Runtime Code Parameters?

Dec 9, 2011

The following is some code to execute code at runtime: Dim SourceCode As String = txtCode.Text

Dim Dlls() As String = {"System.dll", "System.Core.dll", "System.Data.dll", "System.Windows.Forms.dll"} 'Any referenced dll's
Dim Compiler As New VbCompiler(SourceCode, Dlls)
Dim CodeAssembly As Assembly = Compiler.Compile
If Compiler.Successful Then


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Adding Code To A Form While In Runtime?

Sep 13, 2011

i am in runtime mode and have a form open. I do some calculations on it and based on those i generate some lines of VB code (concatenated and saved in a local variable). Is there a VB command that i can use that will take this code and INSERT it into another form?

i could copy the code, exit runtime, go to design mode and paste it into the form myself but because i want to do this for several subs for a lot of forms then it will become very time consuming.

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Implement Code Snippets At Runtime In Vb?

Nov 27, 2009

I need to port an old Clipper app to It relies heavily on user-written macros and indeed would be almost impossible to create without them. As VB is interpreted, I am sure it must be possible to implement code that the user has entered, but I have no idea how to do so!


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Program To Modify Its Code At Runtime?

Dec 6, 2009

Is it possible? Self modifying codes based on users choices.

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VS 2005 : Edit Code At Runtime?

Apr 14, 2009

A change I made to the project's configuration must have disabled the ability for me to edit the code at runtime. I used to be able to pause execution and edit code on the fly, but I recently made a change to the configuration manager to build releases for x86 and all of the sudden I can no longer update code while running the app. This is very frustrating as I have to keep stopping and starting my app.

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VS 2010 Execute Code At Runtime?

Sep 20, 2011

Is it possible to create and execute code at runtime?Eg, I make a string with this as the data: MessageBox.Show("Test")Then I 'run' the code from this string to produce a MessageBox

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VS 2010 Generating Code At Runtime

May 14, 2012

How can it be done? What I want is to have the program make a string, and then read the string as code. I'm a noob, and it sounds like this should be so easy, but after seeping through this forum, I have found no quick and easy solutions...


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Modify Property Code At Runtime In Program?

May 15, 2012

Let say I have the following classes[code]...

If I wanted to say, alter the code definition of the automatic property X (at runtime, perhaps in Sub New), such that I could throw the PropertyChanged event

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Runtime Variable Field Selection In Code Behind?

Jan 23, 2012

I have a list with several fields that is created from dataset from a linqtosql query. At run-time, the user gets to specify what field he/she wants to display from the list. In other languages, I can dynamically do this like:


Where 'fieldnameImInterstedIn is itself a variable. How do I do this in VB.Net?

non-working actual code follows:

Dim patientdata = (From patientvar In pdfdatacontext.tbPatients Where patientvar.PatientID = patientid)
Dim patientlist = patientdata.ToList()

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VS 2005 Set That Value Dynamically In The VB Code (meaning Put A Runtime Value In The Xml To Set It)?

Mar 17, 2010

Here is my xsl:

<xsl:stylesheet version="1.0" xmlns:xsl="">
<xsl:template match="/">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>


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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.net - Tool To Diagnose The Code To Check For Errors At Runtime?

May 10, 2011

Is it possible to check the code and find all places where conversion errors might happen.for Ex: Wherever = operator is used , i have to check the type of the LHS and RHS variable.

Is it possible with following softwares?

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Execute A Particular Section Of Code Or Not Based On Variable At Runtime?

Dec 31, 2009

What i am tring to do is execute certain code based on a variable held in a module someting like compiler directives, here's an example for lack of an explanation.[code]...

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Format Gridview As Date/Time At Runtime In VB Code?

Feb 18, 2009

I am putting together a kind of "build your own report" page that will have up to 20 options for people to select.Each option, selected by checkbox or dropdown (probably) will add on to the SQL data source to pull only the information needed and display it in a gridview.For instance, the initial query is:

From Clients as C


How can I do this, preferably referring to the column using the column name of "My Position" and not a numeric...If this can NOT be done....The other option is to query everything and format it - and then hide columns in the gridview based on items that are not checked. Would this be easier? (Doesn't sound as efficient to me).

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VS 2008 Is This Code Correct To Add Value To Label4 From Tetxbox1 At Runtime

Apr 1, 2010

Label4.Text = Label4.Text & " " & TextBox1.Text is this code correct to add value to label4 from tetxbox1 at run time?so that the label content should look like this 45 56 67 89 .the should be appended in the label4 whatever i enter in the textbox1.Also these value should be added in the database as list of items in the single that i can retrieve these values in a listbox that is in the another form .

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Writing Code For Controls That Doesn't Exist Until Runtime?

Dec 18, 2011

Im 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.

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Code Compiles, Throws Exception When Loading Project At Runtime?

Mar 28, 2011

I've got a code sample below that will compile, but not run.  Start it in the debugger by clicking the "step into" button on the toolbar, and an exception pops up before it reaches the first line of user code:

"Could not load type 'TestPrivileges.Win32Module+TOKEN_PRIVILEGES' from assembly 'TestPrivileges, Version=, Culture=neutral, PublicKeyToken=null'."

Comment out either the 'Dim ... TOKEN_PRIVILEGES' line in the module or the 'Public Shared ... TOKEN_PRIVILEGES' at the end of the class, and the problem will stop occurring.Visual Studio 2008 as well as 2010 does it.

Module Module1
Sub Main()
Dim newState As Win32Module.TOKEN_PRIVILEGES = New Win32Module.TOKEN_PRIVILEGES
MsgBox("Here I am")


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Direct Sound Code Runtime Exception : FileLoadException Was Unhandled?

Jan 8, 2012

I am using visual studio/visual basic 2010 express,installed Microsoft DirectX SDK (June 2010),

added reference in my project by add reference>Browse>C:WINDOWSMicrosoft.NETDirectX for Managed Code1.0.2902.0Microsoft.DirectX.DirectSound.dll(


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Autogenerate/compile Code On-the-fly At Runtime Based Upon Values (like Key/value Pairs) Parsed Out Of A Configuration File?

Jan 2, 2011

I have a set of classes that mimics enums (see my other questions for specific details/examples). For 90% of my project, I can compile everything in at design time. But the remaining 10% is going to need to be editable w/o re-compiling the project in VS 2010. This remaining 10% will be based on a templated version of my Enums class, but will generate code at runtime, based upon data values sourced in from external configuration files.what my Enums class looks like. The templated fields, per that question, will be the MaxEnums Int32, Names String() array, and Values array, plus each shared implementation of the Enums sub-class (which themselves, represent the Enums that I use elsewhere in my code).I'd like to parse values from a simple text file (INI-style) of key/value pairs:


So that the following code would be generated (and compiled) at runtime (comments/supporting code stripped to reduce question size):

Friend Shared ReadOnly MaxEnums As Int32 = 3
Private Shared ReadOnly _Names As String() = New String() _
{"enum_one", "enum_two", "enum_three"}


I'm certain this would need to be generated in MSIL code, and I know from reading that the two components to look at are CodeDom and Reflection.Emit, but I was wondering if anyone had working examples (or pointers to working examples) versus really long articles. I'm a hands-on learner, so I have to have example code to play with.

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Modifying One EXE From Another

Dec 3, 2009

I have a core EXE I wrote to serve a series of purposes. Another editor that goes along with it needs to repackage that EXE along with the script that EXE interprets. That is simple enough.

However, I need to give users of this stuff the ability to give that repackaged EXE an icon of their own choosing, but they do not have the source code to manually compile that EXE.

I know some magic with file streams and binary manipulation could do this, but I have the sinking feeling that that's pointlessly doing this the hard way and there may be a better way. Maybe the EXE itself can reset its own app icon per instructions given to it.

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Delete Rows From Dgv But What About Modifying?

Aug 28, 2011

I use this code to delete rows from dgv but what about modifying

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Modifying A CSS File To Fit My Page?

Aug 23, 2011

I found a CSS file while I was searching for how to create tabs without using images. I came across CSS Tabs 2.0. which serves my purpose.However, now I need to customize it to fit my page, and I can't seem to be able to get anywhere.The CSS file uses a

<ul and an <li

I am using a Table with <tr> and <td>

This is the sample code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"

<html xmlns="" xml:lang="en" lang="en">[code]......

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Modifying An Array To Use .txt File?

Jan 11, 2010

I have to convert this as stated. I am trying to retrive the next position line in an .txt file based upon a user's integer.Basically retrive the next .txt line from user input to an lbldisplay.

Option Explicit On
Option Strict On
Option Infer Off
Public Class frmMain


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Modifying Data In Combobox?

Mar 1, 2012

I am populating data form database in combobox. This data is in the form of numeric codes like 112, 113,

The thing i want to do is on selecting some code like 113 from combobox, it will display it as ABC113 in the combobox.if code like 114 selected from combobox, it will display it as ABC114 in the combobox.

I don't want to store this modified string in database.

Please help me to achieve this.

Provide me some sample code or link for simple combobox or combobox in datagrid.

i think there is no change in code in both above cases.

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Modifying The DataSource Of A ComboBox?

Sep 25, 2009

I have a ComboBox that is bound to a List(of T).Now I type-cast the ComboBox.DataSource into List(of T)and add some more elements in the List.The items collection of the ComboBox doesnt get reflected and the new element does not show up in the ComboBox. Am I missing something ?

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Modifying The Rich TextBox

Sep 1, 2011

I've got to do some special things with a RichTextBox. I have to add syntax highlighting and I need

to be able to find out what character was added/removed/inserted at what position every time a key

is pressed. Is there some way to edit the existing, or is there a open source (.net compatible,

preferably available for download? I've tried making my own, the problem is, it has to have

every function normally available and I don't have enough time to implement all of that.

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.net - Modifying ObjectDataSource Deleting Parameters?

May 26, 2011

I am trying to add a parameter to the deleting event of an ObjectDataSource as in the example below from msdn. I generated an event handler for the ObjectDataSource's deleting event, and it had the same signature as in the example, however, when I try to clear the paramsFromPage as in the example, I receive an error stating that

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C# - Modifying Scriptmaps/handlermappings Programmatically

Mar 22, 2011

I have some code to create a Virtual Directory programmatically.

I need to edit handler mappings of framework 2.0 to use .net 4.0 (basically run .net 2.0 code under .net 4.0 CLR).

The code below works fine under win 2003 server, but on Windows 2008 server webservicefactoryHandler2.0 is renamed as webservicefactoryHandler4.032_1245.

I don't know how to access/edit this name or infact retain the name and just change its value to Microsoft.NETFrameworkv4.0.30319aspnet_isapi.dll from Microsoft.NETFrameworkv2.0.50727aspnet_isapi.dll.

Dim scriptMapVals As PropertyValueCollection = VDir.Properties("ScriptMaps")
Dim objScriptMaps As ArrayList = New ArrayList()
Dim frameworkVersion As String = "4.0.30319"


Update: @kev : So basically you are saying to use different code for different version of IIS right? Well while using import "Microsoft.Web.Administration.dll" , do i need to pack it up in my build ? or this is part of all IIS7.0 installables? as Some poeple could have IIS7.0 on Windows XP.

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