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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: 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: Özden Irmak |
last post by:
Hello,
In my application, I've to cast DocumentDesigner class to my own derived
class,MyDocumentDesigner, in order to reach the protected properties in
DocumentDesigner class. But everytime I get a "Specified cast not valid!"
error...
MyDocumentDesigner FDDesigner =
((MyDocumentDesigner)DHost.GetDesigner((IComponent)CForm));
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by: Jack MacRank |
last post by:
Hello,
I'm coding a webform application in C# (ASP.NET 1.1 SP1 with VS.NET 2003 Pro
on WinXP SP2 using IIS 5.1).
I created a seperate "data" class to house all the MySQL connection and sql
command methods. This is exactly what the Microsoft Data Access Application
Block assembly does but I coded my own simple, custom class.
I have a method named "ExecuteAggregate" that takes in a sql string like
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by: Charles |
last post by:
I do not understand why I am getting a "Specified cast is not valid" error, since it has worked before. Something has changed and I am not really sure what it could be. I am looking for something along the lines of did you check this, have you did this, or this is the wrong way of doing this. I can access the CColPositions and the CPosition class, but when I try to use the two classes in a For...Next loop I get the error message above. ...
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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: keithb |
last post by:
Using a GridView, I get a "Specified cast is not valid" error when binding
the Visible propery of a hyperlink control to a DataTable text field. The
error goes away if I replace the data binding statement with "true" or
"false". This code causes the error:
<asp:HyperLink ID="HyperLink1"
runat="server"
NavigateUrl='<%#
Eval("c2Hyperlink1Link") %>'
Target="_blank"
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by: =?Utf-8?B?UGF1bCBQcmV3ZXR0?= |
last post by:
I'm attempting to use LINQ to insert a record into a child table and I'm
receiving a "Specified cast is not valid" error that has something to do w/
the keys involved. The stack trace is:
======================
Message: Specified cast is not valid.
Type: System.InvalidCastException
Source: System.Data.Linq
TargetSite: Boolean TryCreateKeyFromValues(System.Object, V ByRef)
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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: 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: 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...
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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...
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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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