| |
by: VBProgrammer |
last post by:
I get the following error when I do an Excel.Workbooks.Open. This error occurs on some PCs but not others. The error and associated code are below.
Thanks in advanc
Error
System.NullReferenceException: Object reference not set to an instance of an object
at Excel.Workbooks.Open(String Filename, Object UpdateLinks, Object ReadOnly, Object Format, Object Password, Object WriteResPassword, Object IgnoreReadOnlyRecommended, Object Origin,...
|
by: Martine |
last post by:
Hi there!
I have a problem with programmatically adding user controls to my
mobile webforms. If I load my usercontrol programmatically (in the
Page_Load), the object is instantiated, I have access to the methods
and properties from the Page_Load, no problem there. But as soon as I
want access to the user control from another procedure on the same
page, I get the next error message:
"Object reference not set to an instance of an...
|
by: Jeff |
last post by:
I'm getting an Object Reference error before I even run my app, and
I'm not sure where to look to find the cause. I'd appreciate your
help.
When I open my Windows Application project, the following Microsoft
Development Environment error message displays:
"Object reference not set to an instance of an object."
Then when I access the design view of one of my forms, the controls on
|
by: Remulac |
last post by:
Hello,
I'm trying to get the value out of a dropdown list box and
assign it to a variable. When I click on the list box, I
invoke this line of code. I get the error, "Object
reference not set to an instance of an object".
The same list box is referenced successfully in the form
load. Does anyone know what might cause this problem?
|
by: Brett |
last post by:
I'm not sure why I keep getting this error, "Object reference not set to an
instance of an object".
Private Function somefunction() as string
Dim MyCurrentClass As New Class1
Try
For i As Integer = 0 To LinkResults.Length - 1
With MyCurrentClass.SqlCmd_Insert_LinkVB
.CommandType = System.Data.CommandType.StoredProcedure
|
| |
by: tjonsek |
last post by:
I've been reading most of the day on how to use datagrids and came up
with code to delete a record. I'm getting an error "Object Reference
not set to an instance of an object" for the line where I set the
command's connection. I really am confused as this same basic code
works throughout my project. I thought perhaps because the event is
bubbling up from the datagrid?
Here's my code. Any insight would help. Thanks.
(cnnGIS has been...
|
by: craig.melbourne |
last post by:
I'm getting a strange bug with my of my applications
When I build and run the app on my develpment machine all works fine.
Once I move it to another machine I get a typical Object Reference
error reported to the Even Viewer.
Any thoughts appreciated.
|
by: danielle.m.manning |
last post by:
I have a question about a problem I am having with attempting to port
some old ASP code to ASP.NET.
We have a dll out there which we downloaded which creates GUIDs for
session management. In ASP, the function looks like this:
Function getGuid()
Dim sessionDUID
Dim MyGuid = Server.CreateObject("GuidMakr.GUID")
Dim mySession = Replace(MyGuid.GetGUID, "{", "")
|
by: Nathan Sokalski |
last post by:
I have a UserControl that I declare programmatically as follows:
Dim userctrl as New rightside_portal()
The codebehind file for this UserControl looks like the following:
Partial Public Class rightside_portal : Inherits System.Web.UI.UserControl
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Handles Me.Load
|
by: prithvis.mohanty |
last post by:
using System;
using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Text;
using System.Collections;
using System.Diagnostics;
public delegate bool IECallBack(int hwnd, int lParam);
|
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...
|
| |
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,...
|
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,...
|
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: 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();...
|
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...
|
| |
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
|
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...
|
68
