nullreferenceexception

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string.IsNullOrEmpty() Doesn't Seem to Work on a String within a Class within a Class

First off, I think I know what\'s going on, but I thought I\'d bring this issue up here for some discussion and see if anyone has an \"answer\" to this other than what I\'m thinking.Because, it doesn\[详细]

2023-02-16 10:23 分类：问答
Vb 10 nullreference exception

i got this code from the net , but i can\'t make this code work on the system i am programming so, i used the same codes to another system and it worked, when i tried using it to my system, it failed,[详细]

2023-02-16 01:19 分类：问答
Null object Refrence Error only on web C# asp

I know this question has been asked but I don\'t see anything that helps me. What I have is a ticket application that records trouble tickets then sends an email to the right person. When I run this o[详细]

2023-02-16 00:32 分类：问答
object references not set to an instance of the object

Am running asp.net application with c#.Am using gridview to update and delete the columns.deleting is working fine.if am clicking the update button i got[详细]

2023-02-15 22:44 分类：问答
Unexplainable Null Reference Exception in VB.NET

I have an application for working with files. It needs to work with the files one character at a time. I am using an ArrayL开发者_运维知识库ist to store the data. Here\'s the code that\'s causing the[详细]

2023-02-15 05:14 分类：问答
MVC 3 application on local IIS

I\'ve had some interesting times deploying a MVC3 app to a localhost IIS server but this one cuts the cake. I am getting a null reference exception when hitting the site from a browser. To be clear, t[详细]

2023-02-14 19:19 分类：问答
Skip item if null for xml text writer

I have Windows form C# application that takes values from the GUI and uses XML Textwriter to create an XML file from them. The problem is some of these values are meant to be optional and when the use[详细]

2023-02-14 10:49 分类：问答
Could this `if` statement generate a Null-Reference Exception ever?

I think my point is clear, under any condition, could this throw null-reference exception? i.e. objecting that e.Result is null while trying to access its Count property.[详细]

2023-02-13 09:31 分类：问答
How can this throw a NullReferenceException?

I have the following code: EventLog el1 = new EventLog(); el1.Log = \"Application\"; el1.Source = \"SharePoint Foundation\";[详细]

2023-02-13 05:34 分类：问答
A Null Refrence Exception while working with Properties

Do you see where the problem lies? Code will run from frmFacility and will shift into UserControl: Public Class frmFacility[详细]

2023-02-10 10:00 分类：问答