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by: Sue |
last post by:
Anyone have any ideas on why the code below will show up
in a browser's sourcecode as an empty table, and is not
visible?
aspx:
<headertemplate>
<asp:Table ID="MyTable" runat="server" />
</headertemplate>
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by: monkey king |
last post by:
I have a given dll file(PDFCreator.dll) - probably generated by VC++.
I want to use its method(PDFCreator()) in dotNet environment. It works
well in WindiowsApplication, but bad in WebApplication ,the line that
calls the function results in the "Object reference not set to an
instance of an object" error.
The following is the VB.NET code I am using to define the structures,
declare the unmanaged DLL function and call the unmanaged DLL...
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by: Scott Zabolotzky |
last post by:
I'm trying to pass a custom object back and forth between forms.
This custom object is pulled into the app using an external reference
to an assembly DLL that was given to me by a co-worker. A query-string
flag is used to indicate to the page whether it should instantiate
a new instance of the object or access an existing instance from
the calling page.
On the both pages I have a property of the page which is an
instance of this custom...
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by: Mika M |
last post by:
Hello!
I'm using VB.NET 2003 and Windows Forms application type.
Question: Why ComboBoxes are not changing their arrearance to XP-Styles look
althought other UI Components does when I use the following code in my Sub
Main ...
System.Windows.Forms.Application.EnableVisualStyles()
System.Windows.Forms.Application.DoEvents()
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by: Deepak C.G via .NET 247 |
last post by:
I want to dispose the image object in my child form, unless I won't dispose this
object i can't delete the image file in my folder.
I get this error in MDIparent form
"An unhandled exception of type 'System.ArgumentException' occurred in system.windows.forms.dll"
"Additional information: Invalid parameter used."
Here is my code:-
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by: SiJP |
last post by:
There is a lot of information out there that shows you how to use a
manifest file with your .net application (exe) to enable windows xp
styles.
I am building a dll for COM interop, which contains a windows form.
How can I enable windows xp styles to this form?
(appname.dll.manifest doesn't work)
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by: SAL |
last post by:
I am getting the following ERROR in my WebApp on line 30:
Server Error in '/TestWebApp' Application.
--------------------------------------------------------------------------------
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information about
the error and where it originated in the code.
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by: Chris |
last post by:
Hi,
I tried to create a class which must change the propety 'visible' of a
<linktag in the masterpage into 'false' when the user is logged. But i get
the error: "Object reference not set to an instance of an object"
for the line 'If mpg.FindControl("lkred").Visible = True Then'.
I couldn't find sofar the solution.
Any help would be appreciated ...
Thanks
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by: dancer |
last post by:
Using VB.net and ASP.net
At runtime I receive the error that MANY people receive who are using much
more complicated code than mine.
"Object reference not set to an instance of an object. "
I know WHY it's happening. It is when a selection is not made to a
RadioButtonList, so the item is = to nothing.
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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...
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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: 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,...
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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: 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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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