Pass Reference Object From One Form To Another?
Apr 29, 2011I have maintain a common data table for 3 forms.[code]...
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Pass Variable By Reference And Set Object To Reference?
May 26, 2010I pass this class i created a variable by reference and i want that reference to be assigned to m_Text so that when i change m_Text it changes the TextValue variable i passed. Example:
Dim test2 as String = "ok"
Dim test as New GeneTextBox(test2)
'then some one changes the text in the GeneTextBox and i want it to change the test2 string...
Public Class GeneTextBox
Inherits Windows.Forms.TextBox
Private m_Text As String
Public Sub New(ByRef TextValue As String)
[code]....
Function - Pass Object Versus Reference Object In Parent?
Dec 1, 2011I am working on a application that has quite a few functions involved and have been thinking of the following: If I have a function that has a few paramaters, is it more efficient to pass the objects to the function(Example 1) or reference the objects in the parent(Example 2)? Does it matter if the objects are large or not?
Example:
Class mainform
Public myGenericList As New List(Of String)
Public myDatarowArray() As DataRow
[Code].....
How To Pass Reference Data To New Form
Dec 5, 2011I need to pass a reference of a class instance to a new form; the newform obtains data from the user to be added to the class instance. How might I do this? Is there a way to pass it as a parameter via the ShowDialog call?
View 2 RepliesError - Creating The Form - Object Reference Not Set To An Instance Of An Object
Apr 13, 2012I'm having this problem with my code and cannot seem to get past it although it was working fine before. The error is "An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object." The code is:
CODE:
I am trying to get information to be pulled out of a database and show in text boxes on another form (frmviewsdets). The error occurs when it gets to the line frmviewsdets.txtsnumber.Text = rdr("StudentNumber") and even when a breakpoint is applied there it just moves on to the next and so on.
I have tried to show frmviewsdets before I pull the data out of the database beut I get the same message.
.net Windows Form, Object Reference Not Set To An Instance Of An Object?
Apr 27, 2010I am getting this error "Object reference not set to an instance of an object" and I dont know where/how to fix it and it does not tell me where the error in the code occurs, just a pop-up windows saying the error. Here is the code on the "start up" Windows form..
[Code]...
Pass A Reference To A Form To Dynamically Compiled Code?
Mar 6, 2011I am trying to create a application scripting environment for my VB .Net application. I have a form type in the application called Project. What I want to do is dynamically compile (i.e Eval) VB .Net code on a Project form. This dynamic code always has a Main function. One of the arguments to Main is a reference to the calling Project form. Here is the Eval code:
Public Function Eval(ByVal vbCode As String, ByRef MyAssembly As System.Reflection.Assembly, ByRef ProjectForm As Project) As ArrayList
Dim Provider As VBCodeProvider = CodeDomProvider.CreateProvider("VisualBasic")
[code].....
An Error Occurred Creating The Form. See Exception.InnerException For Details. The Error Is: Object Reference Not Set To An Instance Of An Object?
Apr 30, 2009WTF, here's my code...
Public Class Form1
Dim BIT01 As Integer = BIT_01.Text
Dim Value As Integer = TB_OutPut.Text
[code].....
VB2010 - Call Application.Run() In Application Without A Form - "Object Reference Not Set To An Instance Of An Object
Nov 12, 2009My problem is when i try to call Application.Run() in a application without a form i get "Object reference not set to an instance of an object." when i run it outside VS. but if ran in debug or release mode it works just fine. i may just be forgetting to setup application right, but ive done it before in this same manor and it worked fine.
Sub main() 'this runs first.
AddHandler Application.ApplicationExit, AddressOf ExitEventHandler
dbg_f("handle added")
[CODE]...
Commented out init_timer and init_ready, and now it causes the same error for the myName line. there seems to be something wrong with class Application. btw theres seems to be something wrong with the forum code formatting.
How To Pass Form Object To Data Class For Update
Mar 11, 2009I am converting some VB6 code which passed an unknown form object to a class, which then used the passed form object to reference the calling form and direct the data from the class as follows:
The Called Class in the class clsGetRecord
Public Function Execute(ByRef FRMForm as form) as booleanFRMForm.List1.Additem(SomeData)....Execute = SomeBool End Function
The clsGetRecord is used by many different forms which receive data all have objects called List1 as: The Calling Form for the form
frmThisFormPrivate function() as booleanDim objRecord as new clsGetRecordbRet = objRecord.Execute(frmThisForm)
The passed form object which will receive dataEnd function. Is there any simple way to do this since the calling form object is unknown at design time?
An Object Reference Error - Control The Form
Feb 20, 2009I am writing this codes on classlibrary to make the changes of the text and I want to control the form as well. I have wrote the last if statement on the bottom of the code that if the form is on the right side, then set the form from righttoleft. I get an object reference which is not set to an instance of an object. Here is the list of the codes that I am writing to make changes of the text on each menu items and control the form. [Code]
View 5 RepliesVS 2010 Form Using DLL - Object Reference Error
May 23, 2012I have my forum calling a sub from a .DLL/Class Library and I get the "Object reference not set to the instance of an object" but when I had the .DLL as its own form, I did not get this error.
Here is the related code on the Form that calls the DLL:
vb
Imports ExcelImport.ExcelImport
Public Class Form1
Dim accConn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:UsersAjDesktopTaxCert_be.accdb")
[Code] .....
Office Automation :: Object Reference Not Visible In A Different Form?
Jul 24, 2011The problem with the following code is that the object oWB is visible and initialized in Form2, but when I show SaveDialog1, the object gives a NullReferenceException. I already know, because I checked in the debugger, that oWB has a valid reference when I leave Form2 and also when I come back from Form2. So I am sure the problem is that the reference simply is not visible in SaveDialog1 for some reason. So please don't tell me that the initialization of oWB returned a Nothing reference because I know it did not.
I get a NullReferenceException on the following line:
Form2.oWB.Save()
I researched this for a whole day and came up with a Microsoft article that explains that it is necessary to run each form of a .NET COM application on its own thread. It gave some code to accomplish this. I incorporated this code into my program. But I still have the NullReferenceException.
Simplified version of Code with most processing deleted below:
Public Class Form2
'Define Microsoft Excel Objects
Dim oXL As Excel.Application
[Code].....
Printing A Form...relieving An Error 91 Object Reference Not Set?
Oct 26, 2009 I am trying to migrate a vb 6.0 program to .NET as it was all coded and worked... i am running into this problem when I try to print... (Print = visible form) I found a tutorial that works when it is used as a standalone but seems to cause problems when trying to integrate the code into my vb 2005, .NET project.this is the start of the added code...
' create a printing component
Private WithEvents pd As Printing.PrintDocument
' storage for form image
Dim formImage As Bitmap
[code]...
Cast A Reference To An Object To A Reference To An Object Of The Same Class?
Mar 17, 2012The book "Beginning ASP .NET 4 in VB 2010" contains the following:NOTE: TaxableProduct inherits from Product.You can also cast in the reverse directionfor example, cast a Productreference to a TaxableProduct reference. The trick here is that this
View 2 RepliesMultithreading - Make A Textbox In The Form Then Add A Microsoft Speech Object Library Reference
Nov 29, 2010I would make a textbox in the form, then I add a Microsoft Speech Object Library reference. Then using Microsoft Speech, I would have the text-to-speech option. In the same class I would add this code:
[Code]...
Object Reference Error "Object Reference Not Set To An Instance Of An Object"?
Aug 26, 2011I have this bit of code
Private Sub SpellChkMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SpellChkMenuItem.Click
Dim activeRichTextBox = TryCast(Me.ActiveControl, RichTextBox)
'clsFS.CheckSpelling(activeRichTextBox)[code]....
When I am in the rtb and click on spell check button it tells me the error "Object reference not set to an instance of an object." On this line
SpellChecker.Text = activeRichTextBox.Text
But it is suppose to be getting the focused rtb correct? So why is it not referenced
Error, "Reference To A Non-shared Member Requires An Object Reference
Nov 28, 2010I am receiving this error: Reference to a non-shared member requires an object reference on the code I've
bolded within the code body. Here is my code:
[Code]...
VS 2008 - Error : Reference To A Non-shared Member Requires An Object Reference
May 8, 2010I get this error:Reference to a non-shared member requires an object reference.When i compile on the following code section:
Private Sub statusBarToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs)
ToolStripMenuItem.Checked = Not ToolStripMenuItem.Checked
statusStrip1.Visible = ToolStripMenuItem.Checked
VS2010 : Error: Reference To A Non-Shared Member Requires A Object Reference
Jun 20, 2011when I do something like this: Process.Start [URL] it says that error only on Form2 not Form1.
View 2 RepliesError 'Reference To A Non-shared Member Requires An Object Reference'
Jul 23, 2009Error 'Reference to a non-shared member requires an object reference'?I want to know what a non-shared member is.
View 2 RepliesError - Reference To A Non-shared Member Requires An Object Reference
Dec 7, 2010I am opening frmB (variable for FormB - the actual form) from frmA. From btn1 I open frmB like this:
frmB = New FormB()
frmB.Show()
From btn2 (frmB is already open) I bring frmB to the front from behind frmA:
FormB.Show()
FormB.BringToFront().
No problem so far. Now I need to pass an arg to frmB. This is where I am having the problem.
from btn1 (in frmA) I do this:
frmB = New FormB(myArg) '--pass myArg to constructor of FormB -- no problem here
frmB.Show()
then from btn2 -- this is where I have the problem
FormB.Show()
FormB.BringToFront()
I tried placing myArg in FormB.Show(myArg) but that did not fix the problem. What is the correct way to pass myArg to FormB (frmB) in this scenario? Do I need to share FormB or frmB? How do I do this? "frmB" is frmA level variable.
Error : Reference To A Non-shared Member Requires An Object Reference
Sep 22, 2009why i am getting an "reference to a non-shared member requires an object reference" error on format.Yesterday gets the previous days date and presents it in a yyyyMMdd format.vsettlementDates takes the "Yesterday value and requests data from it.
Dim Yesterday As String = format(Today.AddDays(-1), "yyyyMMdd")
Dim vSettlementDates As String = (Yesterday)
Error Reference To A Non-shared Member Requires An Object Reference
Apr 27, 2011I am getting the following error:
Error 1 Reference to a non-shared member requires an object reference. (on WindowsIdentity.Groups)
Here's my code from that uses the WindowsIdentity.Groups property to display the identity references for the groups the current user belongs to. This code is part of a larger example provided for the WindowsIdentity class.
Public ReadOnly Property Groups As IdentityReferenceCollection
Get
Dim irc As IdentityReferenceCollection
[Code].....
Error Reference To A Non-shared Member Requires An Object Reference?
Dec 13, 2009" GridView1.datasource = _MyUsers.Reference to a non-shared member requires an object reference." error. WHat's wrong with this code
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[code]......
Error: Reference To A Non Shared Member Requires An Object Reference
Jul 22, 2011I have the following code below, how the line where it says : For Each c As councillor In councillorList i get the error: reference to a non shared member requires an object reference. Can someone please advise where i am going wrong? [Code]
View 2 RepliesError:Reference To A Non-shared Member Requires An Object Reference
Apr 6, 2012Alright, so im getting this error:Reference to a non-shared member requires an object reference.This is the bit of code the error is pointing to:My.Settings.Bookmarks.Add(WebBrowser.Url.ToString)Why is it giving me this error?Its saying WebBrowser.Url is the problem.
View 1 RepliesErrors Reference To A Non-shared Member Requires An Object Reference
Aug 23, 2011im sure it is something really simple. Im by no means comfortable with VB. The below code is not mine but i have altered it for my needs. However im getting a couple of errors.
Reference to a non-shared member requires an object reference. I have underlined the errors in the code and they all refer to the above description
[Code]...
IDE :: Error: Reference To A Non Shared Member Which Requires An Object Reference
Sep 1, 2009Im trying to create a login page which accesses a mysql database I keep getting this error: reference to a non shared member requires an object reference
[Code]...
Shortcut - Reference To A Non-shared Member Requires An Object Reference .net?
Dec 29, 2009How do I fix the following error: Error 1: "Reference to a non-shared member requires an object reference."
On Line:
shortCut = CType(WshShell.CreateShortcut(creationDir & "" & shortcutName &
".lnk"), IWshRuntimeLibrary.IWshShortcut)
Here's my full code sample (if needed for context):
[Code]...