Error - A Reference To C:ProgramFilesMyExes....dll Could Not Be Added
Jan 6, 2011
I'm trying to learn how to call functions in C DLLs from Visual Basic programs. I'm new to VB but have years of experience in C programming & want my functions to be usable by people who are more familiar with VB.
I managed to create a C DLL & call the functions from a C program. One difficulty I had was that I wanted to put my DLLs in a MyExes directory so I could easily have several unrelated programs call them. It was far from obvious how to tell the compiler & linker to look for the DLL in some arbitrary folder but I eventually found out.
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Now one of my difficulties with DLLs & Visual Basic is how to tell Visual Basic 2010 Express to look for functions in a DLL in some arbitrary folder. I tried to use Project->Add Reference, then in the Browse tab went to the folder & DLL I wanted to use, but got the message box:"A reference to C:ProgramFilesMyExes....dll could not be added. Please make sure that the file is accesible and that it is a valid assembly or COM component."I've tried to find a walkthrough to take me through the steps of using C DLLs in VB 2010, but so far had no luck.
and from VB6 project I reference to Test.dll but an error messege was appear A reference to Test.dll file could not be added (If I create VB NET project and reference to file Test.dll it OK )
I have a web site project where I need to use the System.Security.Cryptography.Xml.SignedXml class. I added the Dll System.Security as a reference and imported the namespace into my project. It compiles successfully but when I debug the project I get a compilation error:
Compiler Error Message: BC30002: Type 'System.Security.Cryptography.Xml.SignedXml' is not defined.
I have two FlowLayoutPanels in a Form. The first read images from a DIR and expose them generating so many PictureBoxes are necessary. The user can drag an image and drop into the second Panel. All works fine. Now the problem is how can I know the name of the image contained in the PictureBox in the dropped Panel so that I can save it? I tried to recover in a ListBox the name of the images during the population of the first Panel but I don�t know witch may be the reference with the dropped PictureBox.
I have added a reference to the System.Data.SqlClient, but i am not able to use its components while coding, But when i import it in the form class i able to use the component.
So,Is importing a namespace and adding a reference two different things?
I was trying to make my program see if facebook.com was running in internet explorer.
I added the following
Private Function isFaceBookOpen() As Boolean For Each ie As SHDocVw.InternetExplorer In New SHDocVw.ShellWindows() Dim filename As String = System.IO.Path.GetFileNameWithoutExtension(ie.FullName).ToLower() If filename = "iexplore" Then
[code]...
And added reference; Microsoft Internet Controls (COM tab) but i also need to add this reference; Microsoft.mshtml (.NET tab)
Problem is that i can't find that reference. BTW, I want the function to be triggered by a timer.
I 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:
I 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
I 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.
why 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 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
I 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]
Alright, 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.
Im 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
that vb method returns data of type string. i declared result of type string. but it is showing on that vb method like "reference to a non-shared member requires an object reference" How to solve this? Did I make any other mistakes in this code?
Receive 'ConfigurationManager' is not a member of 'Configuration' in VS2008.I read all of the topics in the forum about this error Tried adding areference to System.Configuration.dll to the project and an "Imports System.Configuration" to the vb file.Still get an error
I added a table to my Access database. I added that table to my dataset. Using Database Designer VB Studio, my table and tableadapter show up in the design view. The class definition is in the datasetdesigner.vb, and it shows in the object browser. But, I can't reference it in code. I am a newby and obviously missing somethning.
Im doing a program that when I click a toolstripbutton, form2 will appear. But im getting an error "Reference to a non-shared member requires an object reference."
Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click Form2.Show() End Sub
Server Error in '/' Application.Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEvent Validation method in order to register the postback or callback data for validation. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true" /> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.Register ForEventValidation method in order to register the postback or callback data for validation.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
I am attempting to make a tabbed browser and I am getting a couple of errors. First one is "name 'addtab' is not declared" the second is "reference to a non-shared member requires an object reference" the third is "statement is not valid in a namespace" and lastley "the resource name 'stop' is not a valid identifier"
Error 2 A field in the dataset 'DataSet1' has the name 'Purchase Price'. Field names must be CLS-compliant identifiers. C:UsersAdministratorDesktopNHSLib(NEWEST)NHSLibReport1.rdlc NHSLib
I have created a datagrid of my own in vb dotnet and converted to dll. I add this dll to a project.i have 2 forms and i have added this control on 2 forms. When i run the project and open 2 forms simentaneously an error " reference not set to an instance of an object" occurs on acess of any property of that control.
I am a beginning programmer and am having a problem with adding a record to a customer table in a Microsoft Access database. I have worked for hours reading my textbook and troubleshooting to no avail. When I execute this code below the record is not added and I do not get an error of any type. When I go into debug mode, all of the parameters are correct and everything looks good. If I open up Access I can manually add the record but using my program nothing happens. All datatypes are string in VS and text in Access.
First an instance of the Customer Class is created and this seems to be successful. But when I take that customer object and run the AddCustomer method of the customer class it is not successful in that the database does not reflect that the record was ever added. [Code]
I have a program that adds controls on the fly to an auto-scroll panel. When the panel is scrolled (viewing the bottom of the panel for example) and a control is added, it looks like it is added assuming the top left corner of the panel is still at 0,0 when in fact it may be 0,500. To see what I am talking about, create an empty "Windows Forms Application" project and insert the below code into it.
Friend WithEvents Panel1 As System.Windows.Forms.Panel Friend WithEvents btnAdd As System.Windows.Forms.Button Dim ButtonCount As Integer
