error “object reference not set to an instance of an object”
I develop a usercontrol in my windows application. I got a error. I can’t rectify the error. Please help me I have two .cs files one is user.cs another is Form1.cs. User.cs is usercontrol,Form1.cs is application. The error is “object reference not set to an instance of an object” This program working well in .NET 1.1 Currentlly I am changed into .NET 2.0 What is differ from .NET 1.1 to .NET 2.0? // Code of user.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using Syst...
strange “Object reference not set to an instance of an object” error
Hello
Certain pages on my asp.net site will crash when the page is submitted before the previous request is fully loaded in the browser. I get an “Object reference not set to an instance of an object” error. If the page is allowed to fully load, the error will not occur.
Anyone come across this?
The environment is VS.net 2002 with framework version 1.0thanks
My best guess would be that when the form is being submitted, it requires certain information that it cannot locate because that information has not finished loading, and is therefore null. If you don't think this is your problem, ...
String reference not set to an instance of a String. Parameter name: s error
I'm (attempting) implementing a customer membership provider for an application (code from the custom SQL membership provider video) and upon creating a new user in with a standard create user wizard control in debug mode, I get this error:
String reference not set to an instance of a String. Parameter name: s
I semi-understand why but can't quite get it. Here's the method that throws the error:
''' <summary> ''' Encode p...
Many errors from Settings.Designer.cs - Settings.cs
I have a working Web Service which I can test and confirm, I've added this Web Services as a Web Reference to my C# project. The project is a Webpart for Sharepoint. When I build my application all of a sudden errors from Settings.Designer.cs - Settings.cs - Reference.cs, -all- of which are similar to these, which most repeat over and over.--------------------------------- 'global' is not a recognized attribute location. All attributes in this block will be ignored.Identifier expected.Expected class, deligate, enum, interface, or struct.{ expected.Invalid token '(' in class, struct, or ...
set reference to an instance
I have a page where I add records using 36 six textboxes. I have an if else statement where if the textboxes are blank an error message should appear but if they are all completed they are cleared after the data is submitted. When I add some information in all the textboxes and submit it the textboxes clear like they should but when I leave them blank it and submit I get an error message that states:
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 mor...
Error Message: The Hidden expression for the table ‘tblContactInfo’ refers to the field ‘PL_Admin_ShowInKit’. Report item expressions can only refer to fields within the current data set scope or, if
Hi
I have a old report that was pointing to a different database, and i changed the connection string for that report and changed the field names (As per my new stored Procedure). In some places I keep getting this run time error, i have tried looking for all the hidden references to this field and i cannot find any parameter that the old database had. The error messages that i get are as follows:
[rsFieldReference] The Hidden expression for the table ‘tblContactInfo’ refers to the field ‘PL_Admin_ShowInKit’. Report item expressions can only refer to fields wi...
errors errors errors..Name: harun
Email: harunbjk1903hrnatgmaildotcom
Product: Firefox
Summary: errors errors errors..
Comments:
first of all when i launch firefox (3) i cant enter websites via
writing.. for example when I type "google" and then press ctrl and
enter, it crashes.. and i take lots of error reports.
firefox 2 was better..
see you again ,
harun
Browser Details: Mozilla/5.0 (Windows; U; Windows NT 5.1; tr; rv:1.9) Gecko/2008052906 Firefox/3.0
From URL: http://hendrix.mozilla.org/
...
error error error
These are the 2 new errors i am getting now:
1). Server Error in '/' Application.
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.Source Error:
Line 53: ...
Error, Error and more errors
Okay, all I wanted to do was test this app out and it has been a nightmare.
1.) Didn't install the sql database. I had to manually install it.
2.) I get errors when trying to add a picture to an album.
"Procedure or function ngUpdatePicture has too many arguments specified"
Any ideas? I've gotten more errors than this, but there is no use in bitchin.
Are you using the v1.6.1 installer? Also, did you select to install the SQL Server db and give it a valid admin login? What were some of the error messages? Did you have an existing DB from a previous install?
...
Error setting up a Web Reference to a local Web Service
I'm getting the following error in VS2008 when attempting to add a Web Reference to a Web Service within a Web Application that will be consuming it. Both the web app and the service are on the same machine. I can access the Web Service directly with IE, though, which is what makes this a bit of a puzzle.
"Unable to connect to the remote serverNo connection could be made because the target machine actively refused it "
Anyone have any ideas? I'm using Windows Server 2008, if that's of any help :)
Hi tickled_Pink,
Firstly, please make sure you give the ri...
getting error objref not set to instance with dropdownlist in footertemplate
I am getting an error: Object ref. not set to an instance of an object.
I have the footer template where i have a dropdownlist box in it. I use the footer template to add a new row to datagrid.before i add the new row, i want to make sure the dropdownlistbox is not null.
I am doing the following please help.
one condition the following picklist gets populated only onselected index change of another combo box that is project:the user has to select the project in oreder to get the contracts filled:if the user does'nt make any selection for projects that time i get the error with object ref....
GoDaddy Login control Error, Server Error in '/' Application. error: 26
Hi,
I have developed a website in asp.net and published the webpages and database to the remote server as per the instructions of godaddy help site article. I have also updated the connection string in web config file so that it points to the database on remote server. Site was working fine when I tested on my local site. connection string also works fine on remote server, which is proved by the grid view information displayed on the home page, however when I go to the Login Page and try to login I get the below error message and the same error message when I try to create a new user ...
error
Dear all,i successfully installed this TimeTracker to my laptop and ready to test it out by creating new user. But, when i submit this error message appear:-
Server Error in '/TimeTracker' Application.
The user instance login flag is not supported on this version of SQL
Server. The connection will be closed. 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. Exception Details:
System.Data.SqlClient.SqlException:...
String reference not set to an instance of a String. Parameter name: s .......help
Heyi have a feed back form. when the user clicks on the submit button , all the information are stored in a text file. but now i am getting an error.......i cant figure it outcan someone please help me out. i am stuck.here is my code:<%@ Page Language="C#" AutoEventWireup="true" CodeFile="fbform.aspx.cs" Inherits="fbform" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" ><head runa...
Database is not showing up in IDE of VWD. “Object reference not set to instance of an object”.
Hello all,In visual web developer, the .mdf files where showing up in the database explorer until 2nd of march. But now it is not visible there. When I try to double click on that .mdf file, VWD says “Object reference not set to instance of an object”. The only modification I made to the system is updating msn messenger to windows live messenger. I reinstalled VWD, but that was not helpful. Any idea what might have happened?Thanks Joseph Jameswww.beforeyoubuy.co.uk
Try creating the connection to the server again and check if you are able to access the mdf file. RightClick on DataConn...