Run Vb Code And C++ In Same Object?
Apr 8, 2011How can we run visual basic code and C++ in the same object?
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Line Of Code Is Generating This Error - Object Reference Not Set To An Instance Of An Object?
Aug 14, 2010with datagridview1
while looping through all the cells
i am trying to allot a cell value to another cell value basing on some conditions
& finally delete one column.my code is as fallows
Dim i, x As Integer
i = 0
x = Me.DataGridView1.Rows.Count[code]....
error i am getting is : Object reference not set to an instance of an object.it is extremely surprising for me the same code has worked nice for me but why & how the same line of code is generating this error.
Fill_Text Code Throws An Error : System.NullReferenceException:Object Reference Not Set To An Instance Of An Object
Apr 18, 2010I got the following code from the demo code samples and just changed the textbox names. But it throws an error:
Private Sub Fill_TextBox()
Dim Num As Integer
Dim DSet As DataSet
[code]....
The error is:
System.NullReferenceException:Object reference not set to an instance of an object.
Event Handler Code Cause A Object Reference Not Set To An Instance Of An Object. Error (only Present On Live Server, Ok On Dev)?
Mar 4, 2010Here is the code for the button click event;
Protected Sub CompetenciesButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CompetenciesButton.Click
Dim con As String = WebConfigurationManager.ConnectionStrings("foo").ToString()
[code].....
Initialising New Label In Code - Object Reference Not Set To An Instance Of An Object
Nov 28, 2011I'm converting an application from VB6 to VB.NET, and am required to declare and initialise some controls in code (control arrays). I have it declared globally, so other forms can access the data stored within them, and then I try to manipulate them inside the Form_Load() sub:
Public lblDataZone() As Label
Private Sub Form_Load() Handles Me.Load
lblDataZone(0) = New Label
[code]....
The error I get says "Object reference not set to an instance of an object". I feel like I'm missing something huge here, but what's wrong with it?
Active Directory Code: Object Not Set To An Instance Of An Object?
May 2, 2012 I have a code section in my current active directory program in which it gives the error in the title above at the line:
If results.Path = "" Then from below code:
Dim results As SearchResult = Nothing
[code].....
Getting Code Of An Object Is Executing Even When The Current Object Is Nothing?
Jan 19, 2012I stumbled upon the statement "If Me IsNot Nothing" several times. Often I find this in WinForms samples.I dont't get the sense or meaning of this line. "Me" refers to the current Object or Form, so if I am executing this line "Me" can't be Nothing. Or am I missing something here?Is there a way that Code of an Object is executing even when the current Object is Nothing?
View 12 RepliesError: MSDatasetGenerator Failed. Failed To Generate Code Object Reference Not Set To An Instance Of An Object
Jul 28, 2009I created a typed dataset a day or so ago, then I added a whole bunch of tableadapter/tables with some relationships etc... suddenly out of nowhere it decides my dataset "is not defined". everywhere in my code where i use this dataset now has an error. I tried not to pull out my hair and do a Clean then Rebuild solution... out of nowhere it just refuses to generate code. Object reference not set to an instance of an Object. It would be nice if it was my object so i could find it but it's not.
Curiously I also lost the little database icon on the dataset in the solution explorer.I can still open it in the designer and preview my queries etc... it just wont make the code. it's driving me insane. anyone got a solution?
Code, Object Error?
Sep 9, 2010I am fairly new to programming and hence require some help and advice. Here goes my problem.I have an excel workbook with defined list of names and I want to change the cell reference for each name using macros. I then want to loop this so that it can change the cell reference for each of the names. I have written a statement to achieve the above but it is throwing object defined error.
View 1 RepliesDestroy An Object With Code Of Itself?
Jun 17, 2010A have written an activex exe (let say FileCopy.exe. I want that obect itself can be destroyed from the class.
suppose an application creates a component from the class "FileCopy"
Set NewFile =CreateObject ("FileCopy.Filops")
Is it possbile the application quits and object is still running in separate space and We can destry it (Filops) based on certain condition (let say timeout) from its own code (Filops).[code]..
Object Naming Through Code
Jul 27, 2011I am creating the pictureboxes through code in VB, and I am trying to give them instance names through code, since they do not exist in the forms physically (I cannot manually name each one), only when I run my application (using VB 2008 express). The pictures work, they are displayed when I run the application but I need to find a way to be able to call each one because I need to create motion animation for every separate picture object.
[Code]...
Use A Code-generatged Object?
Sep 29, 2011use a code-generatged object?
View 9 RepliesCode Sorting An Object Within Arraylist ?
Oct 12, 2009Class Murid
Implements IComparable
Public strNama, strKelas As String[code].....
Dim X As Object - Summarize The Long Code?
Sep 3, 2011I want to summarize this code because it is too long:
[code]...
Uncommanded Code Entry For Object
Mar 31, 2010I am new to VB8 upgrading from VB4.I have lots to learn, but am having a problem.I wrote a simple program with two buttons on the GUI.One is for execution and other is for clearing old data.When I enter code data in the button for execution, it also repeats in the code block for clearing the screen.The same happens when I enter code in the screen clearing object, it will repeat in the execution object.Also when I double click on the objects from the design form for button2, I see a reference to button1 in the code area.The same thing has happened when I click on button1, I will see reference to button2 in the code ara.
View 3 RepliesVS 2010 Code Bug (Disposed Object?)
Oct 4, 2010I am using the following codes:This code triggers my transport sequence. I am not having any variable sequences.
[code]...
What is going wrong? I reach the error at the first instance of "transport.Show()"
.net - Set A Code Object As The DataSource For A ComboBox, Using XAML?
Sep 24, 2010I've gotten to a point where I'm trying to add a ComboBox to a UserControl, and to populate it from a collection which exists in code.
I've been getting along pretty much on monkey-see-monkey-do coding for the most part; copying and adapting existing code in order to get the next stage working, but this DataSource stuff has me stumped. I've been through a whole bunch of articles on MSDN this morning and am no closer to understanding than I was when I started.
Let me go through a few of the things that are messing with me, and hopefully you guys will be able to point me in the right direction:
1) None of the [UserControlName].vb files contains any code. All of the code for the UserControls is stored in [UserControlName]Model.vb files, and then code of the following sort is used:
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:l="clr-namespace:MySolution"
[Code]....
1.5) (using bullet points means I can't use <> brackets or code blocks later on. What the hell, markdown?) Anyway...
2) I'm pretty sure I only want a Static Source for the moment, as the items in the ComboBox aren't going to change during execution, at this time. Problem is, all the articles I can find about this are gigantic, complex things about creating XML readers, and populating DataGridViews and sorting data, and on and on and on. I just want to declare that I'm using a frealing List! A List I've already created in code.
So, yeah, I basically need to use a Public Property ComboBoxLines As List(Of String) from a class which isn't the same class as the UserControl itself as the DataSource for a ComboBox.
Asp.net - NullReference On Object In Code Behind After AsyncPostBack Using UpdatePanel?
Feb 20, 2012I'm building a simple game in an ASP.NET/VB.NET web app. The game has a UI made up of several ImageButtons. The web page's code behind file holds an instance to the game object which will manage each turn taken by players. Everything worked when the Game object's methods were Shared. The problem occurred after refactoring to make the game object work as an instance instead of a shared class. Now, when the action returns to the code behind, the instance of the game object is nothing.
The code bits:
Public Class _Default
Inherits System.Web.UI.Page
Private _gamePanel As Panel
[code]....
C# - Initialize Object Properties In One Line Of Code
Nov 11, 2009I'll put some C# code below that should explain what I'm trying to do. I just don't know how to do it in VB. Additionally, for future ref, if you could tell me what this process is called
// Here is a simple class
public class FullName
{
[Code]....
Code Change Throws Object Error
Sep 16, 2010I have a piece of code that I believe is the culprit in a "Object reference not set to an instance of an object" error being thrown.[code]
View 4 RepliesHow To Create Object (label / Button) Using Code
Jul 21, 2010How to create Object (label, button) using Code?
View 4 RepliesManipulating Object Properties As A Variable With Code
Nov 4, 2010I would like to use a loop to manipulate a set of objects on the form. This is like using a control array but not,... Here is some code to consider:
[Code]....
Object Creating Code & Passing Values To SR?
Mar 29, 2011This code works, as is, on my system. Problem lines are commented out. The last three commented lines are the problem.It creates the objects alright but a line that should send a message into the list box doesn't work. I am almost sure that the problem is in passing information into the sub routine. Forgive my use of ALL CAPS as it helps to see my comments on comments. A few comments in passing information to SRs would be helpful.
Also, how it is that I can comment out the .Name option and it still works?(I hope that this shows up properly. If it ends up as a big useless paragraph, I will repost it after learning how to do it properly.
Here is my
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' -------------------------Create ann exit Button -----------------------------------------------------
Dim btn As New Button
[code]....
Pull Object And Its Code From 1 Form, And Display It On Another?
Dec 14, 2009I might be going about this all wrong, but i've been reading up on some stuff, and am venturing into stuff i've never dealt with before. example: when people do things like, dim xxx as new form1
then xxx.show...how do you design that xxx form? and get the objects placed where you want it? Design an object on form2. Say Panel, populate it the way I want it. Code it the way I want it.Then, say on form1, i push a button, and it will display the panel(on form2) on form1?
Reducing .Net Code Using Inline Object Creation?
Apr 4, 2012I have managed to crunch down a several line code to this
For Each gal In galleries
With New HtmlGenericControl("div")
.ID = gal.Header
[code]....
I cannot find any where how to reference back to the object i am currently working with to add the control back to galleryContent' - Using plain me crashes the whole web server...Using does not offer the shorter hand of just using . - But it Using the only way to do it?
Reducing Code Clutter When Using A ListViewItem Object
Aug 27, 2007Reducing Code Clutter When Using A ListItem Object
When using ListItem objects, the normal procedure is as follows:
[Code]......
VS 2008 Use Declarations For An Object After Adding It In Code?
Nov 16, 2009Dim wBrowser As New WebBrowserTabControl1.SelectedTab.Controls.Add(wBrowser)I used the above code to add a WebBrowser to a tab, but I have no idea how to use declarations for it after adding it in code. I'm mainly after the
View 4 RepliesForms - Reffer To An Object In Form1 With Code In Form2
Mar 5, 2009If I create a new form, say Form2, in order to use it in a program I must create an instance of it: Dim frmTwo and new Form2, If Form2 has a text box on it I can put this code in Form1: [Code] But what happens if I want to refer to an object (a text box)in Form1 with code in frmTwo? This doesn't work: [Code] How is the instance of Form1 created? And How do I refer to it?
View 3 RepliesVS 2010 Get Image From Access OLE Object Into PictureBox In VB Code?
May 10, 2012I am programming with Access 2007 VB.net in Visual Studio 2010.I am trying to have my VB program read the database, extract the .bmp image, and assign it to a PictureBox on the fly (I am actually creating a Group on the fly and filling it with data from the database that are selected by my query. One of the fields is "image". All of my other fields are successfully transferring from the DB to the group box.) My problem is converting the OLE Object to a picture/image that I can assign to the PictureBox.I am using TableAdapters and queries set up in an .xsd.I have a database with an OLE Object field.Here is a code snipit of my database set up:
Dim ta AsNew dsWhiteboardTableAdapters.MonstersTableAdapter
Dim monsterList AsNewdsWhiteboard.MonstersDataTable
Dim monster AsdsWhiteboard.MonstersRow
[code]....
I have tried several ways of getting the image into my picturebox, all lead to errors.
Write This Block Of Code That Parses A Delimited String Into An Object?
May 8, 2009Is there a more elegant way to structure the following code, which takes a comma delimited string containing certain values in specific positions and assigns the values to the properties of an object?[code]...
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