.net 3.5 - Change API Reference At Runtime?
Feb 15, 2010
I'm writing an application for a device running Windows XP. There are 2 versions of the device and each version has its own API to communicate with the device's software. The application I'm writing needs to pull the same data from the API. My question is how to write a application that will detect at runtime which version of the device it is on and use the appropriate API.
I've created an interface containing all of the common methods and also classes for each device that implement the interface. Now I need to know how to activate the correct one at runtime.
Public Interface IAPI
Sub InitializeMachine()
Function GetActiveProgram() As String
[Code]....
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Nov 26, 2011
Is there a way to change reference at runtime ? I am automating Word from VB.Net. I think what I have coded will be same for both Word2003 and Word2007. I used Word 12 Object Library reference(which is of Word2007). So, I want to know how to make it compatible with a machine installed with Office2003. That is, it will check the whether the machine has 2003 installed. If so, use that reference. Otherwise use 2007.
[Code]...
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Jan 26, 2010
Can I reference a dll programatically in VB.net? Or change the Local Copy path for a dll reference?
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Mar 3, 2010
I want to add a Reference to my application in run-time mode and i want to list the public keys of this Reference in run-time mode I'm using VS2005.net Windows XP professional
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Mar 11, 2010
I need to reference a .net .dll file at runtime of my program.Does anyone know the code to do it?
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Apr 15, 2011
I'm using the following code to reference an embedded resource at runtime (it's a DLL that I can't package with my app for policy reasons). I need to add a second resource and do the same exact thing.
Private Sub MyApplication_Startup(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.ApplicationServices.StartupEventArgs) Handles Me.Startup
AddHandler AppDomain.CurrentDomain.AssemblyResolve, New
[Code]....
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Jan 8, 2010
I created a .net assembly, which works perfectly if I create before runtime. But i'd like to know if it's possible to reference at runtime. The reason is because i'm creating an application which will be used in several servers, and it will be reference that same .net assembly, but the .dll file will be in different location per server. I know that when I reference before runtime, the .net assembly it will be pointing to is from the original (or at least that's what I think).
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Jan 16, 2012
Been searching a trying examples for a couple of days and always fall back to the "null reference" error on this one. I have a set of instructions coming from a SQL database and the number of instructions is a variable. Therefore, I have a TabControl which I add TabPages to at RunTime depending on the number of instructions there are. The TabPages are then created with the names; Step1, Step2, Step3, etc.Each TabPage is made with the same controls and all of the controls are named the same from page to page (e.g. "instr" is the name of a TextBox control that exists on every TabPage).I can successfully create a GetControl method that will return the correct TabPage, but I cannot reference any controls on that TabPage.I can only change properties of the TabPage.If I try to reference a specific control on that TabPage, like the "instr" TextBox control, I get the null reference error.[code]
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May 14, 2009
I have a third party dll. I wish to create a variable to reference to one of the variable in it.so that the value in the class change, my value also change. The senario can be reproduce from the code below.For the code below i wish to get the form to display 2 instead of 1. How can i make my variable test2 always referencing test.testValue?
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Aug 5, 2011
I get a warning message that reads " Variable 'cust' is used before it has been assigned a value. A null reference exception could result at run time.", but it occurs in my vb file "Northwind.vb with the following code:
Public Class Northwind
Private cust As BizObjects1.Customer
Private Sub frmCustomer_Load( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles MyBase.Load
[Code] .....
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Jan 29, 2012
Warnings: Variable 'targetPath' is used before it has been assigned a value. A null reference exception could result at runtime.
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Jul 4, 2011
CustomerStreamToRead' is used before it has been assigned a value. A null reference exception could result at runtime.I get that warning once I commented out the streamreader line listed below. The warning shows for the line loading settings(z). The app runs but I don't like warnings in my error list.
Code:
Public Sub LoadSettings()
Dim Z As Integer
Dim CustomerStreamToRead As StreamReader
[code]....
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Feb 20, 2012
Due to this error I am getting a default date 1/1/1900. Variable 'dr' and 'dr1' is used before it has been assigned a value. Here's the code:-
[Code]...
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Jun 12, 2011
Variable 'loNode' is used before it has been assigned a value. A null reference exception could result at runtime.
why I am getting this error?
Imports System.Xml
Module Module1
Sub Main()
Dim doc As New XmlDocument
[code].....
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Dec 27, 2010
I want to change my web reference URL at run time depending on if i'm connected to my live site or my "test site"
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Jul 23, 2011
But my application sometimes needs to acces the registery for some special functions and is there a way to change the permisssion on runtime to 'requireAdministrator' with a button or something?
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Mar 5, 2011
I am trying tp update app.config setting on button click.But I am still not able tp update the settings.Here is the code
Dim config
As Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
[Code].....
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Jun 9, 2008
I have an application that connects to a database on sql server. I want to make it possible to use another database that has the same structure as the one im using now (for example accounts2007 and accounts2008).
There is a form for login where user have to choose the database that he wants to use.
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Apr 21, 2010
i have created a builder and stub [URL]
Can i change the icon of the created object. not at the form the icon at exe that you can change under my project.
So with this method can i send text to the other app...any one know how to change icon....
Can i upload a resource at runtime?
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Mar 3, 2010
[Code]....
Now i am using iframe.attribute("src")="..Pages/page.aspx"....In Chrome and ie this one is working.....but Firefox not?
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Jul 18, 2011
I'm writing a Windows form application. I created a SQL database called myDB.mdf. The database/form connection was created using the wizard provided by VS2008. The connection string, table adapter, dataset, etc were all generated automatically. In runtime, I copied the database to several folders and I want to the application to connect to them one by one and do some data manipulation.
Here below are the relevant code I'm using:
Namespace My
Partial Friend NotInheritable Class MySettings
Public WriteOnly Property RunTimeConnectionString() As String
[Code].....
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Apr 27, 2012
I create project in my pc with vb.net and sql database when i tried to run this project to another pc there is error occurred that the connectionstring has not been initialized. I really troubled this from last one week to solve the problem. how to change the connectionstring on client pc at runtime or any other way to create a connectionstring that has auto detect in any pc where the program is installed.
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Oct 6, 2010
I have done this below program keeping the picture box property dock=None.And the below code works fine.
Imports System.Drawing.Drawing2D
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]....
i.e Dock=Fill And i stretched the form in the design mode... now the circles in the image are not proper...I want my program to work with the Dock property set to Fill?
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Oct 27, 2009
I have multiple urls to the same webservice, each with it's own "token". I need to switch from one url to another during runtime. I have planned to do this by storing my URLs inside a XML-file, and then read it, copy innertext of an element and overwrite the WS url in my app.config. My app reads and write to xml just fine, it is when I actually use a method from the webserivice proplems start to appear.
[Code]...
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Apr 24, 2011
I am creating a program that will be sold as a subscription. I am trying to decide how to prevent users from passing the program to others without purchasing it. I was thinking that on the very first run, the program could pull the MAC address from the computer it is run on, and create a constant at run time. This constant is then hard wired into the program and is used for comparison every time the program is run thereafter. If the MAC address do not match, it is on a different computer.
How do I recompile my .exe to include a globally declared constant used for comparison? And how do I use this variable throughout my program?Or is there a simpler way to create my program to require Key Codes for renewal once per year?
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Mar 10, 2010
I did something that when I now load my program(VB 2008), my controls; combo boxes, buttons, progress bar, etc. look like they are from VB 2005 or like VBA buttons, not the rounded edge buttons of 2008.
They look like vb 2008 controls while I am in design view, but then they change their style when I run the program..
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Jan 7, 2011
I am trying to change the language my WPF app uses in a click event but it doesn't change.[code]
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Mar 22, 2010
I'm trying to change the existing 10 labels color on my form at runtime they are named this way (label1,label2,label3...label10) however i haven't bin able to successfully do it so far. Here is the code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim LabelArray(10) As Label
For x As Integer = 0 To 9
Dim strLabelName As String = "Label" + x.ToString
[Code] .....
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Mar 28, 2010
I'm trying to figure out how I can change a ListView's "Large ImageList" to another one at runtime. For example I have it attached to my Icons_64x64 ImageList right now but would want an option to switch it to Icons_128x128 at runtime. Hope that makes sense and someone has an idea out there. I haven't been able to come up with anything at all.
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Jul 30, 2009
Can I change the app name at run time[code]...
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