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Published on 2009-07-15T12:29:44Z
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2010/05/10
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Is there a tool available that can scan code and check for possible null reference exceptions, i.e. where there is no code to check for null before calling a method / accessing a property?
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I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:…
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Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to…
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The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions…
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I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot…
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Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test…
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Still working on getting a TeamCity build working (see my last post). Latest exception is: C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\TeamData\Microsoft.Data.Schema.SqlTasks.targets(120, 5): error MSB4018: The "SqlDeployTask" task failed unexpectedly. System.NullReferenceException:…
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(I'm creating this separate question and answer because every question we get on NullReferenceException is really the same)
I have some code and when it executes, it throws a NullReferenceException, saying, "Object reference not set to an instance of an object.".
What does this mean, and what…
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How can I get a NullReferenceException in the following scenario?
Dim langs As IEnumerable(Of SomeCustomObject) = //some LINQ query
If langs Is Nothing Then Return Nothing
If langs.Count = 1 Then //NullReferenceException here
What am I missing here? Debug shows that langs is really just a LINQ…
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I am writing an wpf application with multiple skins. The code to switch theme is as below:
try
{
Application.Current.Resources.MergedDictionaries.Add( resource );
}
catch( Exception ex )
{
}
The first time the code is called (to switch to a new theme), it is executed successfully; however…
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Hello,
I have a rather annoying issue with LinqToSql. I have created a class that is derived from the class in the DataContext.
The problem is that as soon as I use "InsertOnSubmit(this);" on this derived class I get a NullReferenceException.
I've seen some people with the same issue. However…
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