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Async programming help.

Posted By:      Posted Date: September 21, 2010    Points: 0   Category :.NET Framework

I am loosly basing my application on http://msdn.microsoft.com/en-us/library/h80ttd5f(v=VS.71).aspx

The code is as follows:

    private delegate List<string> BaseCatalogListFunction(bool designMode, string server, string partner);
. . . . .
      BaseCatalogListFunction actionFunction = new BaseCatalogListFunction(this.GetBaseCatalogs);
                    (partnerComboBox.SelectedValue as Partner).Name,
                    new AsyncCallback((asyncResult) =>
                                     BaseCatalogListFunction function = ((AsyncResult)asyncResult).AsyncDelegate as BaseCatalogListFunction;
                                     List<string> list = function.EndInvoke(asyncResult);
                                     baseCatalogComboBox.Dispatcher.Invoke(new Action(() => {
                                       baseCatalogComboBox.DataContext = list;
                                       baseCatalogComboBox.SelectedIndex = 0;
                                       baseCatalogComboBox.Visibility = Visibility.Visible;

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