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Questions tagged [objectdisposedexception]

The exception that is thrown when an operation is performed on a disposed object.

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Cannot access a disposed object in Delphi Prism

I am programming under Delphi Prism for Mono. I keep getting this error, "Cannot access a disposed object" after opening already opened and closed window form, even though the window form is declared within a class and instantiated in the…
ThN
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System.ObjectDisposedException: Cannot access a closed Stream on HTTP POST/PUT in .NET Core 3.1

Upgraded my app from .NET Core 2.2 to .NET Core 3.1. On one of my api endpoints that creates/updates a record, via HTTP POST or PUT, I am getting following error: System.ObjectDisposedException: Cannot access a closed Stream. at…
Bmoe
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System.ObjectDisposedException: 'Cannot access a disposed object

So I've been following a YouTube tutorial on how to recreate a school attendance/login system using C# and MySQL for Visual Studio, and when I try logging in with or without typing anything in the text boxes, I keep getting the error in the title.…
kiehuc
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ObjectDisposedException thrown everytime a "User" (membership) object is updated

I am using asp.net mvc 3, entity framework with structure map for IoC. I have my own custom membership provider. I had the same kind of problem when I was injecting the dbcontext object and the membership instances using StructureMap so removed…
amythn04
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c#.Net PowerShell Class

I'm trying to use a PowerShell object with a remote runspace. The initial connection is established, the test returns back with the correct responses, all appears good. I then assign my powershell object some commands to run, and it pops up with the…
Ste
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ObjectDisposedException trying implement DDD project

When I try to return my orderList as IQueryable, I get the following error: "ObjectDisposedException: Cannot access a disposed object. A common cause of this error is disposing a context that was resolved from dependency injection and then later…
Guto Barroso
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How do I solve this error: 'Cannot access a disposed object. Object name: 'IncomeForm'.'?

What I'm trying to do is get user input from a form (IncomeForm) by using a textbox (TextBoxIncomePrice) and after pressing the button (ButtonConfirmIncome), the LabelIncome label in the form MainPage should change to the value input by the…
isidoros _
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Why does setting Log on a DataContext cause an ObjectDisposedException?

This is my service class: public class MyService { private readonly MyDataContext _db; public MyService() { _db = new MyDataContext(GetConnectionString()); #if DEBUG _db.Log = Console.Error; #endif } public void Get(int id) { …
Brandon
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How can I prevent my System.Timers.Timer from raising the Elapsed event after it got stopped?

I have the followig code: using (FileStream sourceStream = sourceFile.Open()) { using (FileStream targetStream = File.Create(targetFilePath)) { using (Timer timer = new Timer(250)) { timer.Elapsed += (sender, e)…
Flagbug
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ObjectDisposedException thrown when using the WritableBitmap

I am trying to convert the rendered stream from RenderTargetBitmap to the writable bitmap. I used the below code in button click and convert the stream to bitmap. If continuously converting the bitmap means it throws an ObjectDisposedException. Code…
Santhiya
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How to avoid ObjectDisposedException when closing application

I have a problem replicated all over the application, but I think it could be managed the same way. I have an IDisposable class in my Winforms application (it is a custom control derived from System.Windows.Forms.Label) In that class, I have a timer…
jstuardo
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MemoryStream throws System.ObjectDisposedException

I want to resize images for iOS so that I don't have to do it manually all the time. This should be done using WPF but it throws a ObjectDisposedException. What it does is the user selects a csproj file and then an image which will be resized in 3…
MelloPs
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After retargeting to .NET Core 2.1 getting new error System.ObjectDisposedException: Cannot access a disposed object

I've just successfully retargeted my Web API app from .NET Framework 4.7.1 to .NET Core 2.1. The application runs perfectly on my local machine. After deploying it to an Azure app service the app starts up and looks healthy. However I log the…
08Dc91wk
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ObjectDisposedException in ASP.NET Boilerplate manage services

I've decided to separate logic from RoleAppService to RoleService, because I need to use role methods in other app services. By separating logic I can avoid injecting endpoints to other endpoints (e.g. RoleAppService to UserAppService) and possible…
Plusce
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DataGridView.BeginEdit() fails because DataGridViewTextBoxEditingControl is disposed

In the code below, I simply try to do a BeginEdit(False) in a DataGridView. Occasionally, this fails with: System.ObjectDisposedException HResult=0x80131622 Message=Cannot access a disposed object. Object name:…
CeSinge
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