473,789 Members | 2,514 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

The exception was "null" ...

Hi NG,

when trying to drag a UserControl from the toolbox on a Form, this exception
rises:

The exception was ""null" is not a valid value for the 'stream'.".

?

Thank you

Rudi
Nov 15 '05 #1
2 1459
Rudolf Ball <Ba************ @Infineon.com> wrote:
when trying to drag a UserControl from the toolbox on a Form, this exception
rises:

The exception was ""null" is not a valid value for the 'stream'.".

?


And what was the stack trace? That sounds like an
ArgumentNullExc eption, but without knowing what threw it, there's not a
lot to go on.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Nov 15 '05 #2
> when trying to drag a UserControl from the toolbox on a Form, this
exception
rises:

The exception was ""null" is not a valid value for the 'stream'.".


you try to use a stream that is not properly initialized. for example, you
might have tried to create a bitmap or an icon from non-existing assembly
resource (I often get this error in such scenario).

Regards, Wiktor
Nov 15 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

7
20375
by: Pablo J Royo | last post by:
Hello: i have a function that reads a file as an argument and returns a reference to an object that contains some information obtained from the file: FData &ReadFile(string FilePath); But , for example, when the file doesnt exists, i should not return any reference to a bad constructed object, so i need something as a NULL reference object. I suppose i could return a pointer instead, but i have some code written with references which...
13
3089
by: Don Vaillancourt | last post by:
What's going on with Javascript. At the beginning there was the "undefined" value which represented an object which really didn't exist then came the null keyword. But yesterday I stumbled across "null" string. I know that I will get an "undefined" when I try to retrieve something from the DOM which doesn't exist. I have used null myself to initialize or reset variables. But in which
1
3181
by: putty | last post by:
I found a few posts of people asking about insertCell()/insertRow() not working in IE6 SP2, and a few others about getting "null is null or not an object" errors, but no one posted a solution anywhere or noted this tiny yet curious change in SP2.. so here it is: In IE6 SP2 rows must be inserted into a tBody instead of a Table directly, after that you may insert TDs into TRs any way you wish. insertRow() and insertCell() work the same as...
13
3115
by: gary | last post by:
Hi, We all know the below codes are dangerous: { int *p = new int; delete p; delete p; } And we also know the compilers do not delete p if p==NULL. So why compilers do not "p = NULL" automatically after programs do "delete p"?
14
3169
by: MuZZy | last post by:
Hi, Lately i've been (and still am) fixing some memory leaks problems in the project i just took over when i got this new job. Among the other issues i've noticed that for localy created objects it makes difference to explicitly put them to null after working with them is done - it somehow makes the GC collect them sooner, like here: void SomeFunc() { MyClass c = new MyClass();
5
2283
RMWChaos
by: RMWChaos | last post by:
I am working on a script to create and remove DOM elements, and I want to make it as efficient as possible (no redundancies). Because DOM elements each have their own set of attributes, the function variable list is quite long, and each type of element may not use some of the variables. As a placeholder, I use "null" when there is no value, but this can result in lots of "null" values. So I want to create a function to autofill the "null"...
2
3105
by: crabsdf | last post by:
My project is a single method class which takes a xml object and, using Apache FOP, transforms it into a PDF which is returned as an output stream. Here is full code package transactionStatement; import javax.xml.transform.TransformerFactory; import javax.servlet.*; import org.jdom.*; import java.io.ByteArrayOutputStream; import java.io.File;
0
9663
marktang
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...
0
9511
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10195
jinu1996
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...
1
10136
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,...
0
9979
tracyyun
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...
0
9016
agi2029
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...
0
5548
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
4090
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
2
3695
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.