Object Doesn't Support This Property Or Method?

Feb 9, 2012

Are shared properties accessible from a COM exposed .NET assembly?

Dim appExcel As Object
Dim objAppSingleton As Object
Set objAppSingleton = CreateObject("Pitchbook.CommonUtils.Application.PitchbookAppSingleton")[code].....

The line appExcel = objAppSingleton.CurrentPitchbookExcelApp gives the error:Run-time error '438': Object doesn't support this property or method

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C# - ObservableCollection Doesn't Support AddRange Method - Get Notified For Each Item Added Besides What About INotifyCollectionChanging?

Mar 22, 2009

I want to be able to add a range and get updated for the entire bulk. I also want to be able to cancel the action before it's done (i.e. collection changing besides the 'changed').

[Code]...

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LINQ To Entities Does Not Support The Method System.Object CompareObjectEqual?

May 31, 2011

When I execute the code below I receive the error message: LINQ to Entities does not recognize the method 'System.Object CompareObjectEqual(System.Object, System.Object, Boolean)' method, and this method cannot be translated into a store expression.It seems to be occurring on the line For Each row2 in PCstudent.

[Code]...

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Pointers To Variable - Vb Doesn't Support But C# Does

Jan 17, 2010

Since vb doesnt support pointers but c# does. I am using a wrapper dll that requires a pointer to some singles to be passed within the method. I get an error that the method has some parameter types that are not supported. How can i pass a pointer to this method if vb .net doesnt support pointers.

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Why Expressions Doesn't Support IdentityEquality

Sep 22, 2009

There is no IdentityEqual item in ExpressionType enumeration. How can I construct expreesion tree with VB.NET Is operator?

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.net Datatable Doesn't Support Datatype From DateDiff

May 9, 2011

I have a query to retrieve DateDiff in my SQL:

SELECT Convert(char,DATEDIFF(m, Temp.Opening_Date, '2011-05-01')) As MonthDifference From Temp

It was successfully retrieve the data from SQL Server. But when I bind it to my vb.net datatable, the value is null. It's seems like vb.net datatable doesn't support datatype from DateDiff... What can I do?

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Doesn't C# Have Support For First Pass Exception Filtering?

Mar 2, 2009

Note: this is not a duplicate of Jeff's question. That question asked "Is an equivalent?" I know there isn't, and I want to know why! The reason I ask is that I've only just become clear on how important it is, and the conclusion seems very strange to me. The Exception Handling block of Microsoft's Enterprise Library advises us to use this pattern:

[Code]...

The policy is defined in an XML file, so that means that if a customer has an issue, we can modify the policy to assist with tracking down (or perhaps papering over) the problem to give them a fast resolution until we deal with it properly - which may involve arguing with 3rd parties, about whose fault it all is. This is basically an acknowledgement of the simple fact that in real applications the number of exception types and their "recoverability" status is practically impossible to manage without a facility like this.

Meanwhile, the CLR team at MS says this is not an option, and it turns out those guys know what they're talking about! The problem is that right before the catch block runs, any finally blocks nested inside the try block will be executed. So those finally blocks may do any of the following: Harmlessly modify the program state (phew, lucky). Trash something important in the customer's data, because the program state is screwed up to an unknown degree. Disguise or destroy important evidence that we need to diagnose an issue - especially if we're talking about calls into native code. Throw another exception, adding to the general confusion and misery.

Note that the using statement and C++/CLI destructors are built on try/finally, so they're affected too. So clearly the catch/throw pattern for filtering exceptions is no good. What is actually needed is a way to filter exceptions, via a policy, without actually catching them and so triggering the execution of finally blocks, unless we find a policy that tells us the exception is safe to recover from. The CLR team blogged about this recently:

[Code]....

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Jul 3, 2009

Why doesn't vb.net in Visual Studio 2010 have any Refactor support

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Feb 9, 2010

I am writing a VB.NET app that has a piece which needs to send a small command to comm port 2 and get the return result. The problem is .NET doesnt have any support for serial communication seems like.

I just need to send the command "headtype" and get the result.

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Compatibility With DotNet Versions - SQLite.dll Doesn't Support Windows 7

Oct 15, 2011

I have been again blessed with legacy code made (presumably) with vs 2008. It's a Visual Basic project with a dependency to SQLite. The actual problem is that it is needed to install and run on Windows 7. Now, I have VB 2008 express in which I opened the project and tried to run it. It threw an exception which was most likely due to the fact that SQLite.dll doesn't support Windows 7 (and/or 64 bit environments). The exception was System. BadImageFormatException. (ddl version was 1.0.65.0)

I read somewhere in the internet that in order to run it in Windows 7 you need to have newer version of it. I downloaded it and managed to change the reference to newer one. Now in the SQLite site it says it requires .net version 3.5 or 4.0. I know that I can change the target framework to 3.5 or even 4.0 but do I need to change some of the old references in the project properties? All the references seem to be to 2.0 libraries. Like System 2.0.0.0 and path to X:windowsMicrosoft. NETFrameworkv2.0.50727System.dll. Does this actually mean that the application is using .net 2.0 although it target framework would be 3.5 or 4.0?

And most importantly do I need to convert my application manually or by using some tool to .net 3.5 or 4.0 in order to get it running with new SQLite dll which requires 3.5 or 4.0?

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VS 2008 Method Not Allowed When Using Proxy Support For A Webrequest?

Mar 13, 2010

I am trying to post data to a form on my website. This works perfect.To expand off for personal use and education, I decided to try and add proxy support. I got a list of some proxies, and did it up. The proxies work, and all is good. But, when I try this with this specific example, I receive 1 of 2 errors depending on the proxy used.(405) Method Not Allowed or (500) Internal Server Error.I realize that both of these are being caused from the proxy side of things, but maybe theres an issue with my code?

[Code]...

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Oct 5, 2010

I found that this answer was asked and answered before VS2010 was actually released.[code]to a .NET Framework 4.0 project in Visual Studio 2010 and it does not compile.Do you now if this feature is really implemented and what I am doing wrong?

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TextBoxBase.AppendText Method - .NET Framework Does Not Support All Versions Of Every Platform

May 11, 2012

I'm looking at the MSDN webpage for TextBoxBase.AppendText Method [URL] Under requirements I see "Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

[Code]...

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Runtime Error '-2147418113 (8000ffff)':Could Not Get The CurLine Property. Unexpected Call To Method Or Property Access

Sep 24, 2009

start with I was given a program by a friend that was created in Excel 2003 with the help of Visual Basic Editor. He said he used Visual Basic 2003, which he is not 100% sure about. Anyways he used CurLine in the program and when I try to open it in Excel 2007 and then open the Visual Basic Editor and run the program I get the following error:Run-time error '-2147418113 (8000ffff)':Could not get the CurLine property. Unexpected call to method or property access.

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First Method Draw() Is Affected By The Standing Property AND Not The Second Method?

Mar 31, 2010

I am not sure whether this is a trick question?One of the object i have has 2 boolean properties, Standing and Sitting.I have a class called student with the 2 methods stated below- Am I coorrect is assuming that the first method draw() is affected by the standing property AND not the second method?Also the way it affects is that it draws an image when the the stugent is standing?


[code]...

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Does Object Support A Given Operand

Aug 5, 2009

I have a number of functions that, for one reason or another, return data type object.If I try and use the + operand (or indeed any arithmetic operator) on types object the compiler throws a wobbly.

How do I tell if a given object supports the "+" operator and, if it does, invoke that "+" operator?

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VS 2005 Method Not Found: System.String Microsoft.visual Compatibility.vb6.support.format

Mar 23, 2011

I got following error when trying to login my web application.

method not found: System.String Microsoft.visual compatibility.vb6.support.format

what is that ?

Microsoft.visual basic.compatibility.dll is already present @ my machine

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Reflection - Find From A Property Info Object If That Property Has A Non Public (Private / Protected) Setter?

Aug 27, 2009

I searched on the forum / Internet for the solution how a PropetryInfo object (of a Public property) can reveal if it has a Private Protected Setter ... it was all in vain .... all help I found was about how to "Set" value of a public property having a Private Setter.I would like to know if I have a PropertyInfo object of a public property, how would I know if its Setter is Non Public?

I tried, in a exception handling block, where I did a GetValue of the PropertyInfo object and then called SetValue by setting the same value back... but to my surprise it worked well and didn error out.

[Code]...

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Databinding An Object Property And Modifying Another Property In Code?

Jan 15, 2010

on a Windows Form, an object myObject is bound to myObjectDataBindingSource like this:myObjectDataBindingSource .DatSource = myObject on the form, i have a check box bound to the property: chkProp1 for example of the object: myObjectDataBindingSource In the code when the checkbox is clicked, I need to go in code and change another text property of the object txtProper2 for example like this:

Private Sub chkProp1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chkProp1.CheckedChanged

[code].....

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Compare An Object Property To Another Object Property?

Jul 4, 2011

I have a listbox of a object called Account, which has 2 fields, password, and username. How can I compare a New Account to all the accounts in the list and see if the password matches?

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Handle An Object's Object Property Changed Event In .NET Windows Forms?

Jun 7, 2012

I know how to handle a single objects property changed event very easily. I want to handle a objects property changed event that is part of another object.

Given Object:

[ObjectY = Y]
+ Public WithEvents X As ObjectX

I would like to do something like:

Private Sub XPropertyChanged() Handles Y.X.PropertyChanged

Right now I need to create a object that equals the object inside that object and then handle this variable pointers property changed, but that is just annoying.

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Assigning An Object Property Using A Variable As The Property Name?

Aug 4, 2009

I want to assign an object property by referencing the property dynamically, with a variable name

i.e.

dim propName as string
staticObjectName.propName = 'whatever

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Extension Method Doesn't Work

Jul 5, 2010

I wanna create extension method for IEnumerable(Of FileSystemInfo). However, compiler says "'Sort' is not a member of'System.Collections. Generic. IEnumerable(Of System.IO.FileSystemInfo)". What is strange is that IntelliSense shows this method. Where's error? [code]

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Error - LINQ To Entities Does Not Recognize The Method 'System.Object IIf(Boolean, System.Object, System.Object)'

Jul 29, 2011

I am getting following error whenever I want to use IIf function inside entity framework query.

LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.

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.net - Object Reference Not Set To An Instance Of An Object: Child Property?

Nov 21, 2011

I'm checking If a border's child property is not set to nothing or equal to a given element, but whenever I run the program, it says that it's set to nothing and crashes. Here's my code:

If Not Me.Child.Equals(Nothing) Then ...
If Me.Child.Equals(value) Then ...

Both gives an error. What should I do to pass these lines? Also in C# it would look like this:

if(this.Child != null) ...
if (this.Child != value) ...

But this time it doesn't give an error.

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Console.Clear Method Doesn't Work?

May 29, 2012

i copied

' This example demonstrates the
'Console.CursorLeft and
' Console.CursorTop properties, and the[code].....

the code straight from the source  <<< a couple of pages back thataway i'm getting a build error about the users ameappdataloca emporary projectsfile.exe not found.VB Express 2008 on Windows 7. how to output text to different parts of the screen.

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ToolStripTextBox Cut Method Doesn't Remove Text?

Jun 23, 2010

I have a toolstriptextbox and a custom context menu strip with a "Cut" menu item. When you select text in the textbox, display the context menu and select the menu item, the cut method of the textbox is being executed, the text is pushed to the clipboard, but the text is not being removed from the textbox.   The code is as simple as follows. 

Sub menuItemCut_Click (byval sender as object, e as eventargs) handles menuItemCut.Click
textbox.Cut()
End Sub

I have verified the event is fired, and the selected text in textbox gets sent to the clipboard.  For some reason the selected text is not removed from the textbox.  Has anyone ran into this issue before when working with a toolstriptextbox?

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UploadString (Post Method) Doesn't Work

May 8, 2009

I am trying to post simple data to some site, in this example to a php file on my local server. My VB.NET Code:

Dim W As New Net.WebClient
Dim A As String = ""
W.Encoding = System.Text.Encoding.UTF8

[code]....

so, when I start the VB.NET App, it just simple calls the p.php (GET) but POST doesnt work. Tried everything. Upladed the p.php to other servers, checked other variables in php ($_REQUEST), used the UploadString(URL,"POST","bla=test), used PERL, ASP.. nothing.I am using .NET Framework 3.5 how to Post data with vb.net?

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Why Does One Method Of Declaring A Bitmap Work And The Other Doesn't

May 27, 2009

I can't figure this out. I have a bitmap that will be used throughout an application, so I can't declare it with a Dim statement in a procedure, or it isn't recognized as having been declared in other procedures. So I declared it at the top of the form class, two ways. This one works: Private MyBitmap As New Bitmap(622, 461) It makes a bitmap to the exact size of a picturebox I have. But I want to be able to change the size of the picturebox and not have to worry about going back into this declaration to set things up, every time I decide to change the box's dimensions. So I tried this next version, but it doesn't work:

[Code]....

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Jan 16, 2009

I need to set property values with WMI but it doesn't work. For example:

obj = New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem")
For Each objMgmt In obj.Get
objMgmt("description") = value
Next

That is supposed to set the computer description but it has no effects at all (and doesn't produce any exceptions). I can successfully retrieve value but I can't set it. The "description" property is supposed to be read and write, according to MS.

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If DllA Doesn't Have A Method That The Application Is Looking For, It Asks DllB?

Apr 1, 2011

[code]...

Basically, I want it so if dllA doesn't have a method that the application is looking for, it asks dllB. This is assuming, as well, that ApplicationX and dllB don't know anything about dllA and dllA kind of just appeared out of nowhere (I want dlls dynamically like a patch to my applications without having to rewrite ALL of the methods, properties, etc. in the dll and have everything else just routed to the old dll).

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Aug 13, 2011

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Apr 16, 2010

What do I need to convert?

Dim CEESearchByAppNo = From CEEsearch In dbCEE.tblScanneds _
Where CEEsearch.AppNo = iAppNo

[code].....

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Jan 19, 2012

I have a form created in VB.net. It is used to get some information form a user. The form is not bound to any data source.A combobox on this form is used to enter a cost. I want the value entered by the user to be displayed using currency format. I have used the Format String Dialog that opens from the ellipses button on the FormatString property of the combobox and selected Currency. This put C2 into the FormatString property.When I run my application, this format is not applied to the value entered into the combobox at the time the number is entered or when I leave the combobox.

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Vb.net Combobox Formatstring Property Doesn't Work

Feb 15, 2012

I have a form created in VB.net. It is used to get some information form a user. The form is not bound to any data source.

A combobox on this form is used to enter a cost. I want the value entered by the user to be displayed using currency format. I have used the Format String Dialog that opens from the ellipses button on the FormatString property of the combobox and selected Currency. This put C2 into the FormatString property.

When I run my application, this format is not applied to the value entered into the combobox at the time the number is entered or when I leave the combobox.

What am I missing?

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Jan 19, 2012

I have a form created in VB.net. It is used to get some information form a user. The form is not bound to any data source.

A combobox on this form is used to enter a cost. I want the value entered by the user to be displayed using currency format. I have used the Format String Dialog that opens from the ellipses button on the FormatString property of the combobox and selected Currency. This put C2 into the FormatString property.

When I run my application, this format is not applied to the value entered into the combobox at the time the number is entered or when I leave the combobox.

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Property 'Cars' Doesn't Return A Value On All Code Paths

Jun 2, 2010

I have myself a problem here. I created myself 2 classes like the ones below:

1) Vehicles
2) SportsCars

I then created some "Properties" like the ones below:[code]I want to get the price of a selected car, but when i try to build i get the following error: Property 'Cars' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.

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Feb 24, 2012

I created a simple user control with a label, and one property that allows me to set its text.I can call the property Text2 and everything works well, but if I call it Text it doesn't work.

I tried both this:
<Browsable(True)>
Public Overrides Property Text As String

[code].....

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Nov 26, 2009

Why can't you set the selected integer for the items in the combobox in the properties window instead of adding code in the form load event? I don't like to have to do things that way, I feel like it is less efficient. Should I just deal with their being no value property for combo boxes or is there a way to do it easier?

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Mar 11, 2009

following error message:

Method not found: Void Excel.Range.set_Value(System.Object,System.Object)

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Jun 11, 2012

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[Code]...

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Mar 26, 2010

i have the following property declaration

[Code]...

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Dec 19, 2009

I was wondering if there was a way to get the name of the property my statement is in, like I can get the name of a function in PHP with the magic constant __FUNCTION__. Is there a way to get that property name, and more in general, also for functions and methods?

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Nov 17, 2009

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Feb 18, 2011

I've got two classes deployed as COM+ components, let's say ClassA and ClassB. ClassA has some public properties. ClassB sets values for those properties and calls a method of ClassA. The method itself does not modify the value of the property. After the call the values of the properties are reset to default values for the corresponding types. This only happens if the called method includes statement ContextUtil.SetComplete(). Once I comment out the statement the values of the properties remain same as they were before the method call, which is what I expect. Do I overlook some basic concept of COM+ objects and their contexts? I would expect the property value to remain the same in any case.

Here's the simplified listing for the code:
Option Strict Off
Option Explicit On
Imports System.EnterpriseServices
<Transaction(TransactionOption.Required)> _
Public Class ClassA
[Code] .....

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