The code is as follows and posted here.
Imports System.ComponentModel
Public Class dlgSettings
Private Sub dlgSettings_Load(sender As Object, e As EventArgs) Handles MyBase.Load
PropertyGrid1.SelectedObject = My.Settings
' Attribute for the user-scope settings.
Dim userAttr As New System.Configuration.ApplicationScopedSettingAttribute
Dim attrs As New System.ComponentModel.AttributeCollection(userAttr)
PropertyGrid1.BrowsableAttributes = attrs
End Sub
End Class
The error is from Settings.Designer.vb generated code:
<Global.System.Configuration.ApplicationScopedSettingAttribute(), _
Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.Configuration.DefaultSettingValueAttribute("SPACE ONLY")> _
Public ReadOnly Property DefaultCircuitDescription() As String
Get
Return CType(Me("DefaultCircuitDescription"),String)
End Get
End Property
The error reads:
System.Configuration.ConfigurationErrorsException: 'Configuration system failed to initialize'
Related
I have 3 pages:
my DB-class
<!--#include virtual="/res/adovbs.inc"-->
<%
Class classDB
'Declarations
Private SQL
Private RS
Private Conn
'Class Initialization
Private Sub Class_Initialize()
Set Conn = Server.CreateObject("ADODB.Connection")
Conn.ConnectionString = "DSN=x"
Call Conn.Open
End Sub
'Terminate Class
Private Sub Class_Terminate()
If IsObject(RS) Then
If RS.State = 1 Then
RS.Close()
End If
End If
If Conn.State = 1 Then
Conn.Close()
End If
End Sub
Public Function GetRS(SQL)
Set RS = Conn.Execute(SQL)
GetRS = RS
End Function
Public Function ExecuteSQL(SQL)
Conn.Execute(SQL)
End Function
End Class
%>
And my "functions":
<!--#include virtual="/res/classDB.asp"-->
<%
'GET PAGED MEMBERS
Function GetMembers(page)
If Not IsNumeric(page) Or page = "" Then page = 1
Dim db : Set db = new classDB
Set GetMembers = db.GetRS("SELECT * FROM member")
End Function
.....
And in my page:
<%
Dim members : Set members = GetMembers(1)
If Not members.EOF Then
Do Until members.EOF
%>
I get Error:
The object does not support the property or method 'EOF'
What might be wrong here? An Object was returned to the page. But I guess it has no properties or entries.... Impossible to debug.
EDIT:
Function GetMembers(page)
If Not IsNumeric(page) Or page = "" Then page = 1
Dim rs
Dim m : Set m = new classDB
Set rs = m.GetRS("SELECT * FROM member")
Response.Write(rs("email"))
Set GetMembers = rs
End Function
It prints out the email for the "member".... but it doesn't work on the "next" page with the loop.
It's it returning the recordset to the page?
<%
Dim m : Set m = GetMembers(1)
If Not m.EOF Then
Do Until m.EOF
%>
Is not working..... what to do?
EDIT
I changed to:
Public Function GetRS(SQL)
Dim RS : Set RS = m_Conn.Execute(SQL)
Set GetRS = RS
End Function
Now I get error:
"The action is not allowed when the object is closed"
Google translated :)
I have the open in the Class_Initialize.... why?
The first error is due to the lack of Set on the returned object reference in the GetRS() method in the classDB class. The fix for this is to change the return value so it is prefixed with Set like this;
Public Function GetRS(SQL)
Dim RS: Set RS = Conn.Execute(SQL)
'Returning object references from a function requires the "Set" statement.
Set GetRS = RS
End Function
You then reported a "not allowed when closed" error. This comes from the encapsulation of the ADODB.Connection object inside the classDB object instance. Because the connection is scoped to the class returning a recordset causes the connection to be severed, hence the recordset returning as closed.
The fix is to bring the connection outside the class so it lives in the context of the page and then passes it into the class via a parameter. There are varying ways of doing this, you could add a argument to the GetRS() method but this would only affect that single method. The other option is to build a sub procedure that you call after instantiation of the class to set the connection, something like;
Class classDB
'Declarations
Private SQL
Private RS
Private Conn
Public Sub Init(conn)
Set Conn = conn
End Sub
'Terminate Class
Private Sub Class_Terminate()
If IsObject(RS) Then
If RS.State = 1 Then
RS.Close()
End If
End If
If Conn.State = 1 Then
Conn.Close()
End If
End Sub
Public Function GetRS(SQL)
Set RS = Conn.Execute(SQL)
GetRS = RS
End Function
Public Function ExecuteSQL(SQL)
Conn.Execute(SQL)
End Function
End Class
You then make sure to call it before using the class and pass your ADODB.Connection object.
'Key is connection object is declared in the scope of the page
Dim conn: Set conn = Server.CreateObject("ADODB.Connection")
Call conn.Open("DSN=x")
'GET PAGED MEMBERS
Function GetMembers(page)
If Not IsNumeric(page) Or page = "" Then page = 1
Dim db : Set db = new classDB
'Call init() method and pass connection into the class instance.
Call db.Init(conn)
Set GetMembers = db.GetRS("SELECT * FROM member")
End Function
I have a difficulties with subscription to EventAggregator, complete vb.net code is below.
'EventSystem' MODULE - the simplified PRISM from Rachel's blog, turned to VB.net as module as follows:
Imports Prism.Events
Module EventSystem
Private _current As IEventAggregator
Public ReadOnly Property Current As IEventAggregator
Get
#Disable Warning BC40000 ' Type or member is obsolete
Return If(_current, (CSharpImpl.__Assign(_current, New EventAggregator())))
#Enable Warning BC40000 ' Type or member is obsolete
End Get
End Property
Private Function GetEvent(Of TEvent)() As PubSubEvent(Of TEvent)
Return Current.GetEvent(Of PubSubEvent(Of TEvent))()
End Function
Sub Publish(Of TEvent)()
Publish(Of TEvent)(Nothing)
End Sub
Sub Publish(Of TEvent)(ByVal [event] As TEvent)
GetEvent(Of TEvent)().Publish([event])
End Sub
Function Subscribe(Of TEvent)(ByVal action As Action, ByVal Optional threadOption As ThreadOption = ThreadOption.PublisherThread, ByVal Optional keepSubscriberReferenceAlive As Boolean = False) As SubscriptionToken
Return Subscribe(Of TEvent)(Sub(e) action(), threadOption, keepSubscriberReferenceAlive)
End Function
Function Subscribe(Of TEvent)(ByVal action As Action(Of TEvent), ByVal Optional threadOption As ThreadOption = ThreadOption.PublisherThread, ByVal Optional keepSubscriberReferenceAlive As Boolean = False, ByVal Optional filter As Predicate(Of TEvent) = Nothing) As SubscriptionToken
Return GetEvent(Of TEvent)().Subscribe(action, threadOption, keepSubscriberReferenceAlive, filter)
End Function
Sub Unsubscribe(Of TEvent)(ByVal token As SubscriptionToken)
GetEvent(Of TEvent)().Unsubscribe(token)
End Sub
Sub Unsubscribe(Of TEvent)(ByVal subscriber As Action(Of TEvent))
GetEvent(Of TEvent)().Unsubscribe(subscriber)
End Sub
Private Class CSharpImpl
<Obsolete("Please refactor calling code to use normal Visual Basic assignment")>
Shared Function __Assign(Of T)(ByRef target As T, value As T) As T
target = value
Return value
End Function
End Class
End Module
I am able to 'Publish' to 'EventSystem' without problems, the code as follow where as message is used class 'NewMessage':
EventSystem.Publish(Of NewMessage)(New NewMessage With {.Msg = "Test"})
Difficulties with 'Subscription', code is below and unfortunately not works:
EventSystem.Subscribe(Of NewMessage)(AppNavigate)
Private Sub AppNavigate(ByVal msg As NewMessage)
MsgBox(msg.Msg)
End Sub
Error: Argument not specified for parameter 'msg' of AppNavigate...
This cannot understand, the class NewMessage has property msg. as below
Public Class NewMessage
Public Msg As String
End Class
Please, help. Thank you
Finally found solution for VB.NET, maybe will be useful for somebody. All above could be used to implement Simplified PRISM Event Aggregator, the 'Subscription' to be performed as follows using lambda expression:
EventSystem.Subscribe(Of NewMessage)(AppNavigate)
Private ReadOnly AppNavigate As Action(Of NewMessage) = Sub(ByVal msg As NewMessage)
MsgBox(msg.Msg)
End Sub
I am trying to develop a VSIX package that adds a tab to the project designer for a couple of custom project properties. I have the package working in VS 2013 using CfgPropertyPagesGuidsAddCSharp as described in this post. However, after porting the VSIX project to VS 2010, the custom property page is not loaded.
This question from 2011 doesn't have an answer. The answer to another question suggests creating a custom project subtype, but that seems like an awful amount of work just to be able to edit some additional project properties from the GUI. This is my first time working on a VSIX package, so I'm trying to keep things as simple as possible.
I've tried browsing through the source for the .NET project system, but I'm not sure exactly what I'd be looking for to properly register the page; any guidance would be much appreciated.
Thanks.
Sometime ago I wrote a blog post describing how to add a custom property page using the CfgPropertyPagesGuidsAddCSharp property. Perhaps you can find it useful.
I ended up creating a project sub-type for the package, which was easier than I expected. The bigger challenge was figuring out a way to share the application code between the VS2013 and VS2010 packages, since they reference different SDK versions. I ended up creating two separate project files, and including the shared code as a link reference in each project.
I created my own IPropertyPage implementation modeled on PropPageBase and PropPageUserControlBase. I have included a portion of that code for reference, since the Microsoft-provided code is more complicated.
Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Diagnostics
Imports System.Diagnostics.CodeAnalysis
Imports System.Runtime.InteropServices
Imports System.Windows.Forms
Imports Microsoft.VisualStudio
Imports Microsoft.VisualStudio.OLE.Interop
Imports Microsoft.VisualStudio.Shell.Interop
Imports ControlPosition = System.Drawing.Point
Imports ControlSize = System.Drawing.Size
<ComVisible(True)>
Public MustInherit Class PropertyPageProviderBase
Implements IPropertyPage, IDisposable
Private ReadOnly _dirtyProperties As New Dictionary(Of String, String)()
Private _control As Control
Private _defaultSize As System.Drawing.Size?
Private _hostedInNative As Boolean
Private _objects As Object()
Private _pageSite As IPropertyPageSite
<SuppressMessage( _
"Microsoft.Reliability", _
"CA2006:UseSafeHandleToEncapsulateNativeResources", _
Justification:="Handle is not owned by us, we are just tracking a reference")>
Private _previousParent As IntPtr
Protected Sub New()
End Sub
' ...
Protected Property [Property](propertyName As String) As String
Get
If String.IsNullOrEmpty(propertyName) Then
If propertyName Is Nothing Then
Throw New ArgumentNullException("propertyName")
End If
Throw New ArgumentException( _
"Empty property name is invalid", _
"propertyName")
End If
Dim dirtyValue As String = Nothing
If _dirtyProperties.TryGetValue(propertyName, dirtyValue) Then
Return dirtyValue
End If
Return ReadProperty(propertyName)
End Get
Set(value As String)
If String.IsNullOrEmpty(propertyName) Then
If propertyName Is Nothing Then
Throw New ArgumentNullException("propertyName")
End If
Throw New ArgumentException( _
"Empty property name is invalid", _
"propertyName")
End If
If _objects IsNot Nothing Then
_dirtyProperties.Item(propertyName) = value
If _pageSite IsNot Nothing Then
_pageSite.OnStatusChange(PROPPAGESTATUS.DIRTY)
End If
Else
Debug.Fail("Accessing property while not bound to project")
End If
End Set
End Property
' ...
Protected Overridable Sub Apply()
If _objects Is Nothing Then
If _dirtyProperties.Count <> 0 Then
Debug.Fail("Cannot save changes. Not bound to project")
End If
Exit Sub
End If
For Each dirtyProperty As KeyValuePair(Of String, String) In _dirtyProperties
WriteProperty(dirtyProperty.Key, dirtyProperty.Value)
Next
_dirtyProperties.Clear()
If _pageSite IsNot Nothing Then
_pageSite.OnStatusChange(PROPPAGESTATUS.CLEAN)
End If
End Sub
' ...
Private Shared Function ContainsMultipleProjects(vsObjects As Object()) As Boolean
Debug.Assert(vsObjects IsNot Nothing)
If vsObjects IsNot Nothing AndAlso vsObjects.Length > 1 Then
Dim first As IVsHierarchy = GetProjectHierarchy(vsObjects(0))
For i As Integer = 1 To vsObjects.Length - 1
Dim current As IVsHierarchy = GetProjectHierarchy(vsObjects(i))
If current IsNot first Then
Return True
End If
Next
End If
Return False
End Function
' ...
Private Shared Function GetProjectHierarchy(vsObject As Object) As IVsHierarchy
Dim hierarchy As IVsHierarchy = Nothing
Dim itemId As UInteger
Dim vsCfgBrowsable As IVsCfgBrowseObject = TryCast(vsObject, IVsCfgBrowseObject)
If vsCfgBrowsable IsNot Nothing Then
ErrorHandler.ThrowOnFailure(vsCfgBrowsable.GetProjectItem(hierarchy, itemId))
Return hierarchy
End If
Dim vsBrowsable As IVsBrowseObject = TryCast(vsObject, IVsBrowseObject)
If vsBrowsable IsNot Nothing Then
ErrorHandler.ThrowOnFailure(vsBrowsable.GetProjectItem(hierarchy, itemId))
Return hierarchy
End If
Throw New NotSupportedException("Unsupported VS object type")
End Function
' ...
Private Shared Sub WriteProperty(vsObject As Object, propertyName As String, propertyValue As String)
Dim hierarchy As IVsHierarchy = GetProjectHierarchy(vsObject)
Dim buildStorage As IVsBuildPropertyStorage = TryCast(hierarchy, IVsBuildPropertyStorage)
If buildStorage Is Nothing Then
Debug.Fail("Unsupported VS object")
Exit Sub
End If
ErrorHandler.ThrowOnFailure(buildStorage.SetPropertyValue( _
propertyName, _
String.Empty, _
STORAGETYPE.PROJECT_FILE, _
propertyValue))
End Sub
' ...
Private Sub _SetObjects(cObjects As UInteger, ppunk() As Object) Implements IPropertyPage.SetObjects
If cObjects = 0 OrElse ppunk Is Nothing OrElse ppunk.Length = 0 Then
SetObjects(Nothing)
Exit Sub
End If
If ContainsMultipleProjects(ppunk) Then
SetObjects(Nothing)
Exit Sub
End If
Debug.Assert(cObjects = CUInt(ppunk.Length), "Huh?")
SetObjects(ppunk)
End Sub
' ...
Private Sub SetObjects(vsObjects As Object())
_dirtyProperties.Clear()
_objects = vsObjects
OnObjectsChanged(EventArgs.Empty)
End Sub
' ...
Private Sub WriteProperty(propertyName As String, propertyValue As String)
If _objects Is Nothing Then
Debug.Fail("Accessing property while not bound to project")
Exit Sub
End If
Debug.Assert(_objects.Length <> 0, "Should never have zero objects if collection is non-null")
For i As Integer = 0 To _objects.Length - 1
WriteProperty(_objects(i), propertyName, propertyValue)
Next
End Sub
End Class
Creating the package was fairly straightforward; just remember to call RegisterProjectFactory during the initialization step.
Imports System
Imports System.Diagnostics
Imports System.Runtime.InteropServices
Imports Microsoft.VisualStudio.Modeling.Shell
Imports Microsoft.VisualStudio.Shell
Imports Microsoft.VisualStudio.Shell.Interop
<ComVisible(True)>
<ProvideBindingPath()>
<Guid(Guids.MyCustomPackage)>
<PackageRegistration( _
UseManagedResourcesOnly:=True)>
<ProvideAutoLoad(UIContextGuids.SolutionExists)>
<ProvideProjectFactory( _
GetType(MyCustomProjectFactory), _
Nothing, _
Nothing, _
Nothing, _
Nothing, _
Nothing)>
<ProvideObject( _
GetType(MyCustomPropertyPageProvider))>
Public Class MyCustomPackage
Inherits Package
Protected Overrides Sub Initialize()
MyBase.Initialize()
Dim factory As New MyCustomProjectFactory(Me)
Try
Me.RegisterProjectFactory(factory)
Catch ex As ArgumentException
Debug.Fail(ex.Message, ex.ToString())
End Try
End Sub
End Class
I didn't use the MPF ProjectFactory class, since the MPF isn't designed for project sub-types. Instead, I inherited directly from FlavoredProjectFactoryBase.
Imports System
Imports System.Diagnostics.CodeAnalysis
Imports System.Runtime.InteropServices
Imports Microsoft.VisualStudio.Shell.Flavor
<SuppressMessage( _
"Microsoft.Interoperability", _
"CA1405:ComVisibleTypeBaseTypesShouldBeComVisible", _
Justification:="Blame Microsoft? No other way around this")>
<ComVisible(True)>
<Guid(Guids.MyCustomProjectFactory)>
Public Class MyCustomProjectFactory
Inherits FlavoredProjectFactoryBase
Private ReadOnly _package As MyCustomPackage
Public Sub New()
Me.New(Nothing)
End Sub
Public Sub New(package As MyCustomPackage)
If package Is Nothing Then
Throw New ArgumentNullException("package")
End If
_package = package
End Sub
Protected Overrides Function PreCreateForOuter(outerProjectIUnknown As IntPtr) As Object
Return New MyCustomProject(_package)
End Function
End Class
The project class then needs to add the GUID for the custom property page to the list of property page GUIDs.
Imports System
Imports System.Collections.Generic
Imports System.Diagnostics.CodeAnalysis
Imports System.Runtime.InteropServices
Imports Microsoft.VisualStudio
Imports Microsoft.VisualStudio.Shell.Flavor
Imports Microsoft.VisualStudio.Shell.Interop
<SuppressMessage( _
"Microsoft.Interoperability", _
"CA1405:ComVisibleTypeBaseTypesShouldBeComVisible", _
Justification:="Blame Microsoft? No other way around this")>
<ComVisible(True)>
<Guid(Guids.MyCustomProject)>
Public Class MyCustomProject
Inherits FlavoredProjectBase
Private Const GuidFormat As String = "B"
Private Shared ReadOnly PageSeparators As String() = {";"}
Private ReadOnly _package As MyCustomPackage
Public Sub New()
Me.New(Nothing)
End Sub
Public Sub New(package As MyCustomPackage)
If package Is Nothing Then
Throw New ArgumentNullException("package")
End If
_package = package
End Sub
Protected Overrides Function GetProperty(itemId As UInteger, propId As Integer, ByRef [property] As Object) As Integer
If propId = CInt(__VSHPROPID2.VSHPROPID_PropertyPagesCLSIDList) Then
ErrorHandler.ThrowOnFailure(MyBase.GetProperty(itemId, propId, [property]))
Dim pages As New HashSet(Of String)()
If [property] IsNot Nothing Then
For Each page As String In CStr([property]).Split(PageSeparators, StringSplitOptions.RemoveEmptyEntries)
Dim blah As Guid = Nothing
If Guid.TryParseExact(page, GuidFormat, blah) Then
pages.Add(page)
End If
Next
End If
pages.Add(Guids.MyCustomPropertyPageProviderGuid.ToString(GuidFormat))
[property] = String.Join(PageSeparators(0), pages)
Return VSConstants.S_OK
End If
Return MyBase.GetProperty(itemId, propId, [property])
End Function
Protected Overrides Sub SetInnerProject(innerIUnknown As IntPtr)
If MyBase.serviceProvider Is Nothing Then
MyBase.serviceProvider = _package
End If
MyBase.SetInnerProject(innerIUnknown)
End Sub
End Class
One last hint for anybody who's having trouble getting things to work: you have to open your project file in an XML editor and adjust some of the build properties manually. At a minimum you'll need to set GeneratePkgDefFile and IncludeAssemblyInVSIXContainer to true.
Ok i have a class, a dbml file and a form. My project is called "Demo Project"
Form - DriveTimeActiveVendorsFrom
dbml - Dataworld
class - tblDriveTimeActiveVendors
My form contains the following code
Imports System.Data.Linq.Mapping
Public Class DriveTimeActiveVendorsForm
Private dc As New DataworldDataContext.DataworldDataContext
Dim _insert As New tblDrivetimeActiveVendors
Private Sub insertVendor()
dc = New DataworldDataContext.DataworldDataContext
_insert.ASRVendor = TextBox1.Text
_insert.AddressLine1 = TextBox2.Text
_insert.City = TextBox3.Text
dc.tblDriveTimeActiveVendors.InsertOnSubmit(_insert)
End Sub
End Class
My class contains the following
Public Class tblDrivetimeActiveVendors
Private _ASRVendor As String = Nothing
Private _AddressLine1 As String = Nothing
Private _City As String = Nothing
Public Property ASRVendor() As String
Get
Return _ASRVendor
End Get
Set(ByVal value As String)
If value Is Nothing Then
_ASRVendor = Nothing
Else
_ASRVendor = value.Trim
End If
End Set
End Property
Public Property AddressLine1() As String
Get
Return _AddressLine1
End Get
Set(ByVal value As String)
If value Is Nothing Then
_AddressLine1 = Nothing
Else
_AddressLine1 = value.Trim
End If
End Set
End Property
Public Property City() As String
Get
Return _City
End Get
Set(ByVal value As String)
If value Is Nothing Then
_City = Nothing
Else
_City = value.Trim
End If
End Set
End Property
Im getting an error on the following line
dc.tblDriveTimeActiveVendors.InsertOnSubmit(_insert)
Its the "_insert" part and the error is
Value of type 'WindowsApplication1.tblDrivetimeActiveVendors' cannot be converted to 'WindowsApplication1.DataworldEntity.tblDriveTimeActiveVendor'. C:\Users\rmonzing\Documents\Visual Studio 2008\Projects\DemoProject\DemoProject\DriveTimeActiveVendorsForm.vb 13 53 DemoProject
What am i missing here? Thanks
The variable _insert is declared as an object of type tblDrivetimeActiveVendors (plural), but InsertOnSubmit is expecting an object of type `tblDrivetimeActiveVendor' (singular).
Somewhere in your code, something has already declared a class tblDrivetimeActiveVendor, which (presumably) contains properties that correspond to the columns in your database table. You need to use this object instead of the class that you posted above.
I'm getting this exception thrown when I run my tests:
Test method OuvertureClasseur threw exception: System.Runtime.InteropServices.InvalidComObjectException: COM object that has been separated from its underlying RCW cannot be used...
though each of my test passes when ran individually.
Here's my tests code:
<TestClass()> _
Public Class FabriqueExcelTests
Private Shared _xl As ApplicationClass
<ClassInitialize()> _
Public Shared Sub MyClassInitialize(ByVal testContext As TestContext)
_xl = New ApplicationClass()
_xl.Visible = False
_xl.ScreenUpdating = False
_xl.DisplayAlerts = False
End Sub
<ClassCleanup()> _
Public Shared Sub MyClassCleanup()
_xl.Quit()
_xl = Nothing
End Sub
<TestMethod()> _
Public Sub ConstructeurParDefaut()
Dim gestionnaire As GestionnaireExcel = New GestionnaireExcel()
Assert.IsNotNull(gestionnaire)
Assert.IsInstanceOfType(gestionnaire, GetType(GestionnaireExcel))
End Sub
<TestMethod()>
Public Sub CreationDUnFichierExcel()
Dim fichier As String = "C:\Temp\CreationFichierExcel.xls"
Using xl As GestionnaireExcel = New GestionnaireExcel()
Dim classeur As Workbook = xl.CreerClasseur(fichier)
classeur.Close()
classeur = Nothing
End Using
Assert.IsTrue(File.Exists(fichier))
File.Delete(fichier)
End Sub
<TestMethod()> _
Public Sub OuvertureClasseur()
Dim fichier As String = "C:\Temp\OuvertureClasseur.xls"
_xl.Workbooks.Add(XlWBATemplate.xlWBATWorksheet)
_xl.ActiveWorkbook.SaveAs(fichier)
_xl.ActiveWorkbook.Saved = True
_xl.Workbooks.Close()
Using xl As GestionnaireExcel = New GestionnaireExcel()
Dim classeur As Workbook = xl.OuvrirClasseur(fichier)
Assert.AreEqual(fichier, classeur.FullName)
classeur.Close()
classeur = Nothing
End Using
File.Delete(fichier)
End Sub
End Class
And my GestionnaireExcel class:
Public Class GestionnaireExcel
Implements IDisposable
Private _cultureOriginale As CultureInfo
Private _disposedValue As Boolean = False '' To detect redundant calls
Private _excel As ApplicationClass
Public Sub New()
InitialiserExcel()
End Sub
'' IDisposable
Protected Overridable Sub Dispose(ByVal disposing As Boolean)
If Not Me._disposedValue Then
If disposing Then
'' TODO: free other state (managed objects).
If (_excel IsNot Nothing) Then
_excel.Quit()
_excel = Nothing
System.Threading.Thread.CurrentThread.CurrentCulture = _cultureOriginale
End If
End If
'' TODO: free your own state (unmanaged objects).
'' TODO: set large fields to null.
End If
Me._disposedValue = True
End Sub
'' This code added by Visual Basic to correctly implement the disposable pattern.
Public Sub Dispose() Implements IDisposable.Dispose
'' Do not change this code. Put cleanup code in Dispose(ByVal disposing As Boolean) above.
Dispose(True)
GC.SuppressFinalize(Me)
End Sub
Public Function CreerClasseur(ByVal classeur As String) As Workbook
_excel.Workbooks.Add(XlWBATemplate.xlWBATWorksheet)
_excel.ActiveWorkbook.SaveAs(classeur)
Return _excel.ActiveWorkbook
End Function
Private Sub InitialiserExcel()
_cultureOriginale = System.Threading.Thread.CurrentThread.CurrentCulture
System.Threading.Thread.CurrentThread.CurrentCulture = New CultureInfo("en-US")
_excel = New ApplicationClass()
_excel.DisplayAlerts = False
_excel.ScreenUpdating = False
_excel.Visible = False
End Sub
Public Function OuvrirClasseur(ByVal fichier As String) As Workbook
Dim classeur As Workbook = _excel.Workbooks.Open(fichier _
, False, False _
, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing _
, False _
, Type.Missing, Type.Missing _
, False _
, Type.Missing, Type.Missing)
Return classeur
End Function
End Class
Related questions found
Though I have read and understand these questions and answers, I don't seem to find what causes my OuvertureClasseur() test to fail when I run all my tests together, and it works just fine when I run it individually.
COM object that has been separated from its underlying RCW cannot be used.
WMI Exception: “COM object that has been separated from its underlying RCW cannot be used”
COM object that has been separated from its underlying RCW cannot be used.
COM object that has been separated from its underlying RCW can not be used - why does it happen?
WPF Thread: “COM object that has been separated from its underlying RCW cannot be used.”
I have been running around for few hours now, and any help will gladly be appreciated.
Thanks in advance! =)
Excel's executing as another process. It's possible that what's happening in classeur.Close() is asynchronous, and that some of it is taking place after the GestionnaireExcel instance is disposed.
Try commenting out the using block and see what happens.