Object reference not set to an instance of an object.

Question

0.00/5 (No votes)

See more:

Dim obj As dataset = New dataset

VB

Dim balrow As DataRow = obj.Tables("openacc").NewRow()//error at this line saying Object reference not set to an instance of an object.
                                        balrow("name") = fname
                                        balrow("address") = fulladdress
                                        balrow("oldacno") = oldno
                                        balrow("status") = statusname
                                        balrow("nomineeno") = nomineeno
                                        balrow("opendate") = open_date
                                        balrow("fromdate") = frdate
                                        balrow("todate ") = todate
                                        balrow("fglhead") = fglhead
                                        balrow("open") = open
                                        obj.Tables("openacc").Rows.Add(balrow)

i am inserting value into dataset but its giving error:-
//Object reference not set to an instance of an object.//

Posted 28-Jan-15 0:12am

lakshjoshi

Add a Solution

2 solutions

Solution 2

I suspect that you haven't setup the dataset and data table properly.

have a look at this Adding a DataTable to a DataSet (ADO.NET)[^]. It shows a short code example of how to create it.

Posted 28-Jan-15 0:35am

Simon_Whale

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

sashje- · Accepted Answer · 2015-01-28T00:17:00

Solution 1

The table openacc does not exist.. Create it first, and declare each column before trying to create a new row.

Posted 28-Jan-15 0:17am

sashje-

Comments

lakshjoshi 28-Jan-15 6:20am

aah! right..spelling mistake of openacc i decaired opnacc..thank you..nice catch..excellent...