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by: Tao |
last post by:
I just upgraded .NET framework to 1.1 and VS.Net to 2003 version and
tried to test it out. I created an ASP.NET project using the wizard
and tried to run
it by hitting "F5". I got an exception: "Specified cast is not valid."
The only thing i put there was a "test this." inside the form. What
might be the problem here?
Thanks in advance.
The Exception:
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by: Ron Holmes |
last post by:
I posted this question on the Crystal Reports Support site and I am still
waiting for an answer.
Using Crystal Reports 9.0 Developer Full edition:
My Crystal report .RPT file has a Picture box which is an OLE Object located
in the Page Header section of my .RPT file.
This is the call which works perfectly in VB6 to format the crystal reports
Page Header section of my report file EquipLst.rpt.
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by: Yongming Wang |
last post by:
FuncA is called to delete itself with B's help.
In vc 7.0, case 1 seems invalid, but case 2 is valid.
Could anyone explain for me?
class A
{
public:
void FuncA()
{
B b(this);
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by: Petter Reinholdtsen |
last post by:
Is the code fragment 'char a = ("a");' valid ANSI C? The
problematic part is '("a")'. I am sure 'char a = "a";' is valid
ANSI C, but I am more unsure if it is allowed to place () around the
string literal.
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by: Jim H |
last post by:
I am trying to go through my Outlook (2003) address book. The code goes
through the Items list and prints all the last names but after it hits 114
(out or 126 contacts) I get a "sepcified cast is not valid" exception
thrown. How can it not be valid when that's all the Items collection should
contain? I tried using a while loop starting with Items.GetFirst(), then
GetNext() but it only gets/prints the first item then loops forever...
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by: Fabian |
last post by:
Hi,
I work with asp.net 2.0 and I have a intermittent error, only happens a few
times a day.
In the page I evaluate a Query String and then I get data form a database.
The code snipped:
try
{
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by: Mike Cooper |
last post by:
There is something about inherited classes I evidently don't know...
I wrote the following class:
Class Class1
inherits System.Windows.Forms.DataGridTextBoxColumn
End Class
There is absolutely no added functionality to it.
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by: Mesan |
last post by:
I'm getting a "Cross-thread operation not valid" Exception and I can't
figure out why.
I've got a BackgroundWorker that creates a UserControl with a whole lot
of other user controls inside of it, full of data I'm getting from the
database. When my background worker completes I take e.Result and cast
it back into a UserControl. I create a TabPage, add the returned
UserControl to the Controls of the new TabPage and *BAM* there's my...
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by: bookon |
last post by:
I was running into the System.Drawing.Image.FromStream "parameter is
not valid" on some of the images I was retrieving from a blob column in
Sql Server. I thought there were corrupt images as almost all worked
(all are gifs), and only a few broke when this line ran: Image img =
Image.FromStream(ms); here is the original code:
b = (byte)dt.Rows.ItemArray;
//b.ToString()
ms = new MemoryStream();
ms.Write(b, 0, b.Length);
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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: 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: 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...
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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: 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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