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by: Terrence |
last post by:
I am doing some of the C# walkthroughs to transition from
VB to C#. When I try to execute
static void Main()
{
Aplication.Run(new Form1())
}
I raise a 'System.NullReferenceException" in
system.windows.forms.dll
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by: Rafael |
last post by:
Hi, I hope I can find some help for this problem
IDE: Visual Studio.NET 2003 Developer Editio
Language: C#
Problem: "An unhandled exception of type 'System.NullReferenceException' occurred in system.windows.forms.dll. Additional information: Object reference not set to an instance of an object.
Visual Studio's IDE is not allowing me to develop projects in C#... I've trying to create a simple Windows Forms project using Visual Studio.NET...
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by: mike p. |
last post by:
I have a docbook xml file, and am using standard docbook 1.61.3 xsl
stylesheets to do xhtml transform. Transform works fine when using
MSXML.
When I try to do the following using asp.net 1.1:
private void Page_Load(object sender, System.EventArgs e) {
// load content
XslTransform trans = new XslTransform();
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by: muralidharan |
last post by:
WebForm1.aspx Code:
<%@ Register TagPrefix="ComponentArt" Namespace="ComponentArt.Web.UI"
Assembly="ComponentArt.Web.UI" %> <ComponentArt:TreeView
id="TreeView1" Height="520" AutoPostBackOnNodeMove="false"
DragAndDropEnabled="true"
NodeEditingEnabled="False" KeyboardEnabled="true"
CssClass="TreeView" NodeCssClass="TreeNode"
SelectedNodeCssClass="SelectedTreeNode"
HoverNodeCssClass="HoverTreeNode" NodeEditCssClass="NodeEdit"
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by: Matthias Kwiedor |
last post by:
Hi!
I want to create a WebBrowser Control at runtime. So i ported the "at
start creation" of the Control to a new routine.
Everything works fine, but i implement the BeforeNavigateFix and a own
Content Menu. For this i need this lines:
public void create_new_browser()
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by: Raed Sawalha |
last post by:
i have a windows form(Main) with listview, when click an item in listview i
open other window form (Sub) which generate the selected item from parent
window in as treeview items when click any item in treeview i display the
content item in axWebBrowser, i close the sub form normally when i close the
main the following error is generated
An unhandled exception of type 'System.NullReferenceException' occurred in
system.windows.forms.dll
...
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by: msnews.microsoft.com |
last post by:
I'm trying to fill an array of objects but when I add the first object I get
a NullReferenceException.
----------------------------------------------------------------------------
-------------------------------------------
Public Class TestClass
Public NextSubIndex As Integer = 1
Public arrTestSubClass() As TestSubClass
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by: sxiao |
last post by:
Hi, there
I got a NullReferenceException when there are more than one users
trying to open the same page at the same time. The senerio is:
Two users logged into the web application using the Windows domain user
account and tried to open the same page which has the databasde query
code. When the two user tried to open the same page at the same time,
there is a runtime error messsage showing as follows:
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by: William Mild |
last post by:
I must be getting brain fried. I can't see the error.
Create a new web form with the following code begind:
Public Class test
Inherits System.Web.UI.Page
Public Class ReportCardData
Public Structure Attend
Dim DaysTardy As Double
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by: Alex J. |
last post by:
I just started to learn C# (my background is in C++), and right now I
study the sockets, TCP/IP etc... so, I found a usefull source code at:
http://www.codeguru.com/Csharp/Csharp/cs_network/sockets/article.php/c8781/.
But there is a scenarion that throw a strange exception. So, the client
is connected to the server, I send a message from client to server and
viceversa and than I stop the server from the 'x' button from the right-up
corner;...
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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,...
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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...
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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: 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...
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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();...
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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...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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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...
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