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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: 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: 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:
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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: Terry Mulvany |
last post by:
I have a 'BasePage' (BasePage.cs) derived from System.Web.UI.Page that all
my pages inherit from. I need to set some properties (either in the OnInit
or constructor) based on a potential Request.Cookie or a name/value pair in
Request.QueryString.
But I am getting a
'System.NullReferenceException: Object reference not set to an instance of
an object.'
error when I try to view any aspx derived from this BasePage.
I am using...
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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: Brano |
last post by:
HI all,
I have a problem i have a web application that was working fine and
this morning when i run it and click on a button that does
Reponse.Redirect to a page i get this error :
Server Error in '/IPFWEb_6' Application.
--------------------------------------------------------------------------------
Object reference not set to an instance of an object.
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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: 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...
|
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: 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...
|
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: 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
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