CODEWITHSUNDEEP
.netc#-4.0asynchronousbackgroundworker
dmzkrsk
dmzkrsk

Reputation: 2115

BackgroundWorker multiple results

I'm new to C#/.NET programming and I have a question.

I use BackgroundWorker to fetch XML data from server.

The problem is that data is paginated. After I get a page I should check if there are another page available and fetch it next.

But I don't want to make the user wait till (dozen or more) pages will be loaded. And I can't make parallel requests to server due API ToS (and I don't know how many pages are there).

What I want is to display (via DataGridView) each page of data as soon as possible. Some kind of pseudo-yield.

Is it possible with BackgroundWorker or I have to use something else (I use .NET 4, VS2012)

Upvotes: 0

Views: 113

Answers (1)

mrtig
mrtig

Reputation: 2267

You should call the public void ReportProgress(int percentProgress,Object userState) method with the XmlNode segment as your state object each time your background worker retrieves a page. This will trigger the ProgressChanged event.

Keep the worker running until you run out of pages. Here's an example: http://msdn.microsoft.com/en-us/library/vstudio/ywkkz4s1.aspx

Upvotes: 1

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