Hi,
How do u handle this error other than
Try
Catch method, is there anything like isDBNull() or something on those
like so that i can check for the value of the object and take some
action as there are lot of activities that follow after checking of a
perticular component.
Thanks
Arvind,
*** Sent via Developersdex http://www.developersdex.com ***
Don't just participate in USENET...get rewarded for it! 6  2909 
"Arvind" <ar******@hotma il.com> schrieb How do u handle this error other than
Try
Catch method, is there anything like isDBNull() or something on
those like so that i can check for the value of the object and take
some action as there are lot of activities that follow after checking
of a perticular component.
To avoid System.NullRefe renceException:
If Value Is Nothing Then
To check Null values in/from a database:
If Value Is DBNull.Value Then
DBNull is not Nothing. See recent discussions in this group, e.g. "How can
an integer contain a Null value".
--
Armin
Thanks Armin,
I have tried all the those things which u have mentioned still am
getting the same exception, i.e. the reason i posted.
Thanks
Arvind.
Armin Zingler wrote: "Arvind" <ar******@hotma il.com> schrieb
How do u handle this error other than
Try
Catch method, is there anything like isDBNull() or something on
those like so that i can check for the value of the object and take
some action as there are lot of activities that follow after checking
of a perticular component.
To avoid System.NullRefe renceException:
If Value Is Nothing Then
To check Null values in/from a database:
If Value Is DBNull.Value Then
DBNull is not Nothing. See recent discussions in this group, e.g. "How can
an integer contain a Null value".
"Arvind P Rangan" <ar******@hotma il.com> schrieb
I have tried all the those things which u have mentioned still am
getting the same exception, i.e. the reason i posted.
Please post some code.
--
Armin
Armin,
This is in reference with ADS
If any of the ADS attribute does not have value how do u check it.
With ISNothing.. or other things its jst raising
system.NullRefe renceException.
Thanks
Arvind.
Armin Zingler wrote: "Arvind P Rangan" <ar******@hotma il.com> schrieb
I have tried all the those things which u have mentioned still am
getting the same exception, i.e. the reason i posted.
Please post some code.
"Arvind P Rangan" <ar******@hotma il.com> schrieb
This is in reference with ADS
What is ADS?
If any of the ADS attribute does not have value how do u check it.
With ISNothing.. or other things its jst raising
system.NullRefe renceException.
Sorry, I don't understand you. To know how you can avoid the exception, at
least I have to see the line of code. As I said, to check if a variable
contains Nothing, use "If variable Is Nothing Then".
--
Armin
Armin,
ADS = Active Directory Service
There are few attributes associated with it. i am trying to capture
thosse values and few attributes dont have values i.e when this error is
occuring.
Thanks
aRvind.
Armin Zingler wrote: "Arvind P Rangan" <ar******@hotma il.com> schrieb
This is in reference with ADS
What is ADS?
If any of the ADS attribute does not have value how do u check it.
With ISNothing.. or other things its jst raising
system.NullRe ferenceExceptio n.
Sorry, I don't understand you. To know how you can avoid the exception, at
least I have to see the line of code. As I said, to check if a variable
contains Nothing, use "If variable Is Nothing Then".
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: sergi |
last post by:
Hi there,
I am getting a System.NullReference exception when calling an unmanaged
method CreateClassEnumerator. I am really new to Interop, so that I am
having trouble finding out a solution. The code is the following :
<code>
using System;
|
by: Larry Re |
last post by:
I've written a small C# app which appears to work perfectly except for the
fact that I get a NullReference exception when I close the form using the
red 'X' in the upper right hand corner of the form. Any ideas on why this
might be happening?
Please remove 'X's from email address to reply
|
by: Andreas Wirén |
last post by:
Hi I'm a C# .NET newbie doing a minor school project but I'm getting a
strange error message.
'System.NullReferenceException' occurred in system.windows.forms.dll
Additional information: Object reference not set to an instance of an
object."
As my references look I seem to be using the old framework(1.0.3705) for
this, but re-referencing to the newer framework(1.1.4322) dll's produces the
same error. This happens under all...
|
by: Vitling |
last post by:
For no apparent reason, a NullReference exception is thrown in
system.dll
(System.Net.Sockets.OverlappedAsyncResult.CompletionPortCallback).
Since I only get a disassembly from Visual Studio, it is almost
impossible to figure out what causes this. I've tried adding:
AppDomain.CurrentDomain.UnhandledException += new
UnhandledExceptionEventHandler (SystemErrorHandler);
to my main method, and a handler function:
|
by: studio60podcast |
last post by:
I'm defining the ItemUpdating event for a DetailsView control, but when
I try to access the e.NewValues collection, it's throwing a
NULLReference exception. Any thoughts?
<asp:DetailsView id="dvConsultantDetails" runat="server"
GridLines="none" CssClass="textBlue12"
AutoGenerateRows="false" DefaultMode="Edit"
OnModeChanging="dvConsultantDetails_ModeChanging"
OnItemUpdating="dvConsultantDetails_ItemUpdating">
<Fields>
| | |
by: Rama Jayapal |
last post by:
i have written the following code to call a method in a class like
in the aspx.cs page
List<string> surls = new List<string>();
Cweb.GetMainUrls(document,ref surls);
Response.Write(surls);
in the Cweb Class page the coding is like
|
by: yogarajan |
last post by:
hi
i had developed pop3 Account mail view in my web page
but i got error in (System.NullReference Exception: Object reference not set)
NetStrm.Write(szData, 0, szData.Length); - this line
///my code start here (cs file)
using System;
using System.Data;
|
by: =?Utf-8?B?RGlzcEV2ZW50QWR2aXNlIGZhaWxzIHdpdGggMHg4 |
last post by:
Hi, I have a beginner's question and I'm not even sure whether it's an asp
question, an Exchange server question or an x64 question... I've been
experimenting with HttpModules. I want to use one in an OWA web site to
override form authentication, with Exchange Server 2007. I keep getting
NullReference exception, even though I commented all the code.
I then tried to use it in some web site on my 2003 server, and I did manage
to run it, and...
|
by: ganeshvkl |
last post by:
i got error " An unhandled exception of type 'System.NullReferenceException' occurred in system.data.dll " when i run my VB.net 2003 with Sqlserver 2000 server program , the same program is working fine in Other PCs ..
can someone give solve my Problem?
Thanx in Adv
Regards
ganesh
|
by: Steve |
last post by:
Hi All
I have a windows forms Application (SAM) in vb.net 2008 using .net framework
V2
One and only one customer out of 30 customers is getting errors daily where
they have to close and restart my application, sometimes several times a day
The customer has XP Home SP2
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
| | |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
| | |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
