Solved

Object reference not set to an instance of an object...

Posted on 2011-03-01
7
307 Views
Last Modified: 2012-05-11
Hi,

This following C# code snippet throwing an error when I execute in my program.

 ResultCode leResultCode = moSearch.WebDedupeContact(ref lsErrorInfo, ref loIXMLDoc, lsFirstName + " " + lsLastName, "", "", "", "", "", "", Constants.IntelliSearch.MinimumMatchScore);

The error is: Object reference not set to an instance of an object...

I have view the definition for the class ResultCode as shwon below:

ResultCode WebDedupeContact(ref string ErrorInfo, ref IXMLDOMDocument2 XMLDoc, string SlxContact, string SlxAccountID, string Address, string City, string State, string Postcode, string Country, short MinimumMatchScore);
        [DispId(1610809829)]

And on the top of interface where we got this declaration also have these attribute as well for the interface:
 [Guid("903FB89C-F136-418D-A72D-0B917B1748BB")]
    [TypeLibType(4304)]

What are these mean? and most importantly where could this error be generated from?
0
Comment
Question by:ube100
  • 4
  • 3
7 Comments
 
LVL 53

Accepted Solution

by:
Dhaest earned 250 total points
ID: 35007972
Where do you get that error ?
Is the object moSearch initialized ?
0
 

Author Comment

by:ube100
ID: 35007978
Sorry Just a small correction:

ResultCode is not a class it is a enum class and that definition is for WebDedupeContact which was defined in a interfcace.
0
 

Author Comment

by:ube100
ID: 35007993
As soon as I hit this line:

ResultCode leResultCode = moSearch.WebDedupeContact(ref lsErrorInfo, ref loIXMLDoc, lsFirstName + " " + lsLastName, "", "", "", "", "", "", Constants.IntelliSearch.MinimumMatchScore);
0
DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

 
LVL 53

Assisted Solution

by:Dhaest
Dhaest earned 250 total points
ID: 35008044
Check if one of your variables return null. I expect moSearch

(do you have somewhere in your code: YourType moSearch = new YourType())
0
 

Author Comment

by:ube100
ID: 35008116
yes,

moSearch has been initialized.
0
 
LVL 53

Expert Comment

by:Dhaest
ID: 35008138
Check all the other variables, fe ref lsErrorInfo, ref loIXMLDoc

Do you have that functions also in debug (perhaps there is an issue in that function)
0
 

Author Comment

by:ube100
ID: 35008280
I have check the moSearch and that is null when we executing it so what should look for?

 private iSearchSLX moSearch

public iSearchSLX Search
        {
            get
            {
                return moSearch;
            }
        }
This is how it's been created. This code is perfectly working code but I'm investigating something at the moment and propbably it is not creating the object under the condition I'm working? How do I find out about what causing it to not to create that object? Something to with Singleton pattern?
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now