We help IT Professionals succeed at work.
Get Started

Background Worker Thread and Global Variables

pclarke7
pclarke7 asked
on
966 Views
Last Modified: 2017-06-27
I have a WCF Service written in C# which makes extensive user of global variables. The Service runs menus and transaction which are made up of sequenced database records with each database record capable of calling specific logic based on inbuilt commands. A typical simplistic example could be:

  05  Start
  10  Display Screen
  20  Input Range of Items
  30  run SQL statement to retrieve item details from Item master table
  40  Display Item Details
  50  Confirm selected Items
*60  Run SQL statement to report on Item Usage
*70  Output SQL results to CSV  
*80  Email usage report to user
  90  Goto Start

Those marked with * should run in a background thread so that after seq 50 the user will be returned to seq 05 whilst the background thread takes over. The issue I have is that Many of the variables controlling the transactions are global variables and so when the user returns to 05 and then exists to a new transactions this effects the background job since the background job is running the same code as the UI , except in the background thread.

I have copied all of the variables from UI to the background thread however the UI continues to update these global background thread variables after the background thread is launched. How can I stop the UI from affecting the background thread global variables ?

Pat
Comment
Watch Question
Retired
CERTIFIED EXPERT
Distinguished Expert 2017
Commented:
This problem has been solved!
Unlock 2 Answers and 21 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant

An Experts Exchange subscription includes unlimited access to online courses.

Get Started
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE