Getting system.invalidoperationexception error

Question

0.00/5 (No votes)

See more:

Hello all,
I am getting an error :
'trans.IsolationLevel' threw an exception of type 'System.InvalidOperationException'

What I have tried:

What I am trying to do is, getting data from user... storing it in clonedt and updating it to sourcedt. Which is then updated to a table in database.

sourceDt.Merge(clonedDt, false, MissingSchemaAction.AddWithKey);
trans.Commit();

The code is running without any breaking, even tho its showing isolation error. But data is not updated in database table.

Below image of error
[^]

Posted 31-Dec-17 19:34pm

Member 13601583

Updated 1-Jan-18 14:40pm

v2

Add a Solution

1 solution

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)

an0ther1 · Answer 1 · 2018-01-01T14:39:00

The most likely answer is due to the IsolationLevel property.
The default value is; Serializable - Volatile data can be read but not modified & no new data can be added during the transaction
Use your debugger & check the trans.IsolationLevel value, especially if you have done a read without committing the transaction & then attempting to update.

Link to MSDN System.Transactions.IsolationLevel documentation below;
IsolationLevel Enumeration (System.Transactions)[^]

Kind Regards