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Questions tagged [argumentnullexception]

[MSDN] The exception that is thrown when a null reference is passed to a method that does not accept it as a valid argument.

MSDN ArgumentNullException is thrown when a method is invoked and at least one of the passed arguments is null but should never be null.

ArgumentNullException behaves identically to ArgumentException. It is provided so that application code can differentiate between exceptions caused by null arguments and exceptions caused by arguments that are not null. For errors caused by arguments that are not null, see ArgumentOutOfRangeException.

ArgumentNullException uses the HRESULT E_POINTER, which has the value 0x80004003.

For a list of initial property values for an instance of ArgumentNullException, see the ArgumentNullException constructors.

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Android AsyncTask doInBackground function nullException error

Hi everybody i need some help with my code. I want to get JSON data from web server but when i try to call the doInBackground function nullException error appear. This is my code: public class viewPOI extends ListActivity { //private ProgressDialog…
Ivan Ahmed
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Value cannot be null. Parameter name: items. Viewing foreignkey in Kendo UI Grid

I'm having a grid with numerous foreign key columns. Right now only the key shows but I want the correct data like in this example. Following code is what I populate the grid with: public partial class RuleEntry { public RuleEntry() { …
Oskar Eriksson
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argumentnullexception was unhandled by user code

In an ASP.NET application while uploading data from an excel sheet to website im getting the error System.ArgumentNullException: Value cannot be null. Source Error: Line 161: LHSupdate.Name = AssociateName; Line 162: Line 163: …
raji
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NullException error. Help a noob out

Can someone please tell me where I am going wrong here? I keep receiving the error message: "ArgumentNullException was unhandled. This method does not accept null for this parameter. Parameter name: song" I cannot find a way around it. Song…
Jon C
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SpriteBatch System.ArgumentNullException

I am writing a simple game based on grid movements, something like Sokoban game. I need to use several different text files to store levels. I wrote some code, and now I get error: System.ArgumentNullException "This method does not accept null for …
honkingForMoreSleeptime
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Runtime.interop ArgumentNullException using ZXing

I am trying to parse a QR Code in a Windows Store-app using ZXing.Net, but when I try to run it using the latest version from their webpage it gives me a ArgumentNullException in BitmapLuminanceSource.Silverlight.cs on line 50 The line looks like…
The87Boy
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PackageManager.FindPackagesForUser throwing ArgumentNullException for argument that is allowed to be null?

I'm trying to get reference to a package for the current user by using[PackageManager.FindPackagesForUser(string usersid, string packagename, string publisher) The MSDN documentation specifically says userSecurityId Type: System.String [.NET] |…
Earlz
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Keep getting error of java.lang.nullexception: null

The code im working on is intended to accept an input from the user but whenever i run the program, it keeps telling me that there is an error, the java.land.nullexception: null. I dont know what to do! import java.util.Scanner; public class…
user1533012
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how to handled null exception in Db.SingleDecimal?

c = new TableCell(); decimal pembayaran = Db.SingleDecimal("Select (valuta) from ArInvoice where customerID='01'); c.Text = Cf.Num(pembayaran); c.Attributes["style"] = "text-align: right;"; tr.Cells.Add(c); it works when the query have a value, but…
Firma Agnes
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AgrumenNullException in ThreadPool.QueueUserWorkItem

I've got a method which gets called frequently by different treads. Sometimes I get an AgrumenNullException when ThreadPool.QueueUserWorkItem(display(angebot), null); gets called, stating that the parameter callBack (the first parameter) is…
Sebastian Seifert
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ArgumentNullException in Newtonsoft.Json when parsing?

I've been trying to write a script to reformat some large .json files, and had a functional prototype. However, when implementing functionality to parse the actions, reactions, legendary_actions, and special_abilities arrays, I got a…
Sam Pauley
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Newtonsoft.Json.JsonSerializationException: Error setting value to 'StringProperty' on 'MyComponent' with inner ArgumentNullException

I'm attempting to create a 'Has Been Edited' tracker for my component classes, like this: public class MyComponent : ObservableObject { // If any changes are made to properties that have the InspectableAttribute, this becomes true. public…
Thomas Slade
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ASP.NET .NET6 System.ArgumentNullException: "Value cannot be null. Arg_ParamName_Name"

I have a TryGetByStatementId method, which, using the FirstOrDefault method, returns me the id from the database. I also have a database that stores information about the uploaded file. I upload the file through the controller, the file is saved in…
Vivaldi
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ConnectionString NULL

I'm getting this error: An unhandled exception occurred while processing the request. ArgumentNullException: Value cannot be null. Parameter name: connectionString My DbContext: public class ApplicationDBContext : DbContext { public…
Igor Miquilena
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Error in VB code which is "System.ArgumentNullException" in vb.net

I get this error when I added this only code : table.Columns.Add("Grade", Type.GetType("System.string")) I have tried to change data type to Char but also was useless what I is to add the "Grade" column and it's value like (A+,B,..) Imports…
BDBD
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