System.NullRefe renceExeption when using <ALT> + <D>

Maurice Mertens

Hi,

I'm having some troubles with a .NET application.
I have a MDI-parent form and MDI-child forms. When I press a shortcut key
in a MDI-child form (i.e. <ALT> + <D>) I get the following error:

An unhandled exception of type 'System.NullRef erenceException ' occurred in
system.windows. forms.dll

can anyone help me with this? I can't catch this exeption.

--
Met vriendelijke groet / With regards / Saludos,
Moviat Automatisering
Maurice Mertens
mauricem@moviat _KillSpamWordFo rEMail.nl

tel: +31 162 470 534
fax: +31 162 470 502

Jul 21 '05 #1

Subscribe Reply

1521

Shiva

See if you have set Alt+D as an access key for any of the menus, buttons,
etc and check the action performed.

"Maurice Mertens" <mauricem@movia t_KillSpamWordF orEMail.nl> wrote in message
news:Xn******** *************** *****@207.46.24 8.16...
Hi,

I'm having some troubles with a .NET application.
I have a MDI-parent form and MDI-child forms. When I press a shortcut key
in a MDI-child form (i.e. <ALT> + <D>) I get the following error:

An unhandled exception of type 'System.NullRef erenceException ' occurred in
system.windows. forms.dll

can anyone help me with this? I can't catch this exeption.

--
Met vriendelijke groet / With regards / Saludos,
Moviat Automatisering
Maurice Mertens
mauricem@moviat _KillSpamWordFo rEMail.nl

tel: +31 162 470 534
fax: +31 162 470 502

Jul 21 '05 #2

Maurice Mertens

Shiva,

<ALT> + <D> isn't an access key for a menu.

"Shiva" <sh******@onlin e.excite.com> wrote in
news:#5******** ******@TK2MSFTN GP15.phx.gbl:

See if you have set Alt+D as an access key for any of the menus,
buttons, etc and check the action performed.

"Maurice Mertens" <mauricem@movia t_KillSpamWordF orEMail.nl> wrote in
message news:Xn******** *************** *****@207.46.24 8.16...
Hi,

I'm having some troubles with a .NET application.
I have a MDI-parent form and MDI-child forms. When I press a shortcut
key in a MDI-child form (i.e. <ALT> + <D>) I get the following error:

An unhandled exception of type 'System.NullRef erenceException '
occurred in system.windows. forms.dll

can anyone help me with this? I can't catch this exeption.

--
Met vriendelijke groet / With regards / Saludos,
Moviat Automatisering
Maurice Mertens
mauricem@moviat _KillSpamWordFo rEMail.nl

tel: +31 162 470 534
fax: +31 162 470 502

Jul 21 '05 #3

Similar topics

3581

Where to store a "variable" in a <div>?

by: Akbar | last post by:

All, I'm currently using an alt attribute in a div tag to store "keywords" for a function that will show or hide certain div's based on a given keyword. Is there a better (standard) place to put these keywords? Code can be seen at http://www.straffin.com/test/DUdyn2.html . This is just a sample... the real "keywords" (and other information) will be pulled out of an XML file, not programatically generated.

Javascript

10456

CSS, images, and invisible <span> text

by: Tristan Miller | last post by:

Greetings. Occasionally I come across sites that use something like the following combination of CSS and HTML: h1 { height:100px; width: 500px; background:url(welcome.gif) no-repeat; }

HTML / CSS

272

System.NullReferenceExeption when using <ALT> + <D>

by: Maurice Mertens | last post by:

.NET Framework

2027

Why is the table less wide than the div when they both have the same width?

by: Robert | last post by:

Probably something simple i'm overlooking, taking the below html and css style settings, when you view in a browser (IE or Mozilla for example), the table is a tiny bit less wide than the div. Yet I have set both to the exact same width (99%) and they have the same border settings. This also happens if i use a width like "800px". The desired effect is that the table be just above the div as a header and in the browser both should be...

HTML / CSS

10159

What is ONU?

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...

General

9981

Changing the language in Windows 10

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,...

Windows Server

11564

Problem With Comparison Operator <=> in G++

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...

C / C++

11153

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

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...

Online Marketing

9886

AI Job Threat for Devs

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...

Career Advice

8252

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...

Microsoft Access / VBA

6112

Trying to create a lan-to-lan vpn between two differents networks

by: TSSRALBI | last post by:

Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...

Networking - Hardware / Configuration

6331

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

4940

transfer the data from one system to another through ip address

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

C# / C Sharp