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by: |
last post by:
When I execute the following (with an OleDBDataAdapter),
wanting to add a row to a visual foxpro table:
myrow= datasetTarget.Tables(0).NewRow
'fill all columns here like..
row(i)= myvalue
' then
datasetTarget.Tables(0).Rows.Add(myrow)
dataAdapterTarget.Update(datasetTarget.Tables(0)) '*
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by: Brian P |
last post by:
I am getting an invalid cast exception when I try
to take an ArrayList with datetime values and use
the ToArray method to create an object array.
I need to use an object array becase I'm working
with various datatypes and need the code to
be as generic as possible.
Most of to code involves dynamically determining
the datatype, which all works.
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by: Giulio Santorini |
last post by:
Hi,
I've got a little problem with my C# WinForms test
application.
I would like to have a ComboBox showing a a visual value
and some hidden values.
So I build a class able to store thoose values. This class
called ListItem have got two private variable, one is a
string containing the visual value, the
other one is a UDT variable. It is a struct called
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by: Steph |
last post by:
Hello,
I'm using COM object in an application. One method used give an object wich
type is object.
When I use a GetType on its, I have "System.String".
I try to convert it to loop on the array of string but I have an exception
(Invalid Cast Exception)
Here is my code :
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by: Nick Flandry |
last post by:
I'm running into an Invalid Cast Exception on an ASP.NET application that runs fine in my
development environment (Win2K server running IIS 5) and a test environment (also Win2K server
running IIS 5), but fails on IIS 6 running on a Win2003 server.
The web uses Pages derived from a custom class I wrote (which itself derives from Page) to provide
some common functionality. The Page_Load handler the failing webpage starts out like this:
...
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by: Hifni Shahzard |
last post by:
Hi,
I got a stored procedure, where it returns a value. But if I execute it. It
gives an error as "Invalid cast from System.Int32 to System.Byte.". To make
clear how do I execute this, below I'm specifiying my code:
The Code used in Visual Studio:
Function GetRank(ByVal ID As Integer, ByVal Comp As String, ByVal Sec As
String, ByVal iDate As Date) As String
'Dim Ret As Integer
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by: David |
last post by:
Hi,
I have built a web application that will be a very high profile application.
We had tested it, demonstrated it and shown that it all works.
On a dress rehearsal run through, it failed spectacularly. I was so
embarrassed and felt like killing the person that made it fail. However,
when it goes live, IT MUST NOT FAIL.
The system has a backoffice system that takes an excel spreadsheet from the
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by: Chet Cromer |
last post by:
I am creating a set of base classes and sub classes to use throughout a
program I'm developing. The base class represents a generic "lookup
table" from my database that contains lists of things like
manufacturers, makes, modes, etc. of cars. I have created a generic
"datacollection" class and a generic "dataobject" class to represent the
table and the rows within that table as a collection of objects with
generic properties for...
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by: chance |
last post by:
Getting and error on this first line of code:
//inspector phone
theField = reader.GetString(20);
builder.MoveToBookmark("inspector_phone");
builder.Write(theField);
the first line is crashing my program. it complains about an invalid
cast. i don't understand why though. I tried putting a IsDBNull around
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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: 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...
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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: 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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