Must create DependencySource on same Thread as DependencyObject

Question

I have an application written in wpf, which downloads some webpages, parses html code and saves some values.

class ListOfItems
{    
    public List

        

Answer 1

Its not enough to set your dataGrid.ItemsSource on the main thread. You must create each item on the main-thread. Something like:

List l = new List();
foreach(var item in ListOfItemsInstance.ListToBind)
{
    l.Add(new SomeObject(){NameOfItem = item.NameOfItem, Properties = item.Properties });
}

dataGrid.ItemsSource = l;