nullreferenceexception

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NullReferenceException when assigning a Session variable/value

I have in many places inmy ASP.NET project used the Session variable for storing data. I usually write something like this:[详细]

2023-03-06 11:32 分类：问答
Cannot access stage properties from a method?

I have an object on my stage, called obj. I also have a class called \"Physics\" which contains a bunch of methods for physics, such as inertia, gravity, and bouncing off walls. In order to do some o[详细]

2023-03-05 11:01 分类：问答
ReSharper: Possible NullReferenceException with Enumerator?

ReSharper notifies me about a possible System.NullReferenceException for the following code: IEnumerator<IEdgeData> edgeEnumerator = edgeData.GetEnumerator();[详细]

2023-03-05 02:01 分类：问答
NullReferenceException from wcf service [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers.[详细]

2023-03-03 13:04 分类：问答
In C#, should one check references passed to methods against null?

Well, a few months ago I asked a similar question about C and C++, but I\'ve been paying more attention to C# lately due to the 开发者_如何学运维whole \"Windows Phone\" thing.[详细]

2023-03-03 06:44 分类：问答
SelectedIndex is a null reference exception?

I keep getting this error: System.NullReferenceException was unhandled by user code Message=[Arg_NullReferenceException][详细]

2023-03-03 03:26 分类：问答
Contains Query on multiple columns

How do I search multiple columns using LINQ to SQL when any one of the column could be null? IEnumerable<User> users = from user in databaseUsers[详细]

2023-02-27 20:38 分类：问答
Collision Detection/Remove object from ArrayList

I am currently trying to test collision between a falling object and a box. I understand basic collision detection, but my problem here is that I have to test it for an indefinite number of falling ob[详细]

2023-02-27 05:14 分类：问答
Why does FluentNhibernate return NullReference for existing row?

I do not get an object from this setup table SPEC ( Special_Name varchar2 pk Signal integer Created_At date)[详细]

2023-02-25 00:56 分类：问答
MVC Membership Problem

Almost every time I run my MVC app, it stops with errors before getting to the home page. UPDATE: Here\'s the latest code:[详细]

2023-02-24 08:54 分类：问答