object-reference

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C# Error 'Object Reference Not Set To An Instance Of An Object'

I\'ve read other questions about this but don\'t see where or why my code is throwing this error. The code I have is below, if anyone can see where i\'m going wrong.[详细]

2023-02-19 09:38 分类：问答
Object reference not set to instance of object"

I am inserting values in listbox from database & retrieving text on a button click. but I\'m getting the following error[详细]

2023-02-18 21:26 分类：问答
Possible reasons for "NullReferenceException" besides dereferencing an object reference set to null [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely solicit debate, a[详细]

2023-02-04 23:37 分类：问答
ASP.NET MVC Object reference not set to an instance of an object

I saw a similar question here on SO but I believe mine differs a little a bit. OK, so I have a simple view here:开发者_JAVA技巧[详细]

2023-01-22 21:26 分类：问答
My application works perfectly local but not in the remote server

When I upload the files on the remote server I get the following message: Obj开发者_StackOverflow社区ect reference not set to an instance of an object[详细]

2023-01-15 03:31 分类：问答
NullReferenceException when reading from a file

I need to read a file structured like this: 01000 00030 00500 03000 00020 And put it in an array like this:[详细]

2022-12-30 03:33 分类：问答
PHP Object References in Frameworks

Before I dive into the disscusion part a quick question; Is there a method to determine if a variable is a reference to another variable/object?(Just want to check I am passing references around corre[详细]

2022-12-27 01:22 分类：问答
Why would this event handler code cause a Object reference not set to an instance of an object. Error (only present on live server, ok on dev)?

Here is the code for the button click event; Protected Sub CompetenciesButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles CompetenciesButton.Click[详细]

2022-12-22 02:05 分类：问答
object reference is not set to an instance of an object repository

I am getting an XAMLParseException that is really covering up another exception. Here is part of the stacktrace:[详细]

2022-12-17 18:08 分类：问答
.NET XmlSerializer and multiple references to the same object

My repository has List<Student>, List<Course> and List<Enrolment> where an Enrolment has Enrolment.Student and Enrolment.Course which are references one of the students or courses in[详细]

2022-12-15 23:44 分类：问答