wpf dispatcher/threading issue
- by phm
Hello
I have a problem in my code and I am not able to fix it at all.
private static void SetupImages(object o)
{
int i = (int)o;
BitmapImage bi = GetBitmapObject(i);
img = new System.Windows.Controls.Image();//declared as static outside
img.Source = bi;//crash here
img.Stretch = Stretch.Uniform;
img.Margin = new Thickness(5, 5, 5, 5);
}
which is called like this:
for (int i = 0; i < parameters.ListBitmaps.Count; i++)
{
ParameterizedThreadStart ts = new ParameterizedThreadStart(SetupImages);
Thread t = new Thread(ts);
t.SetApartmentState(ApartmentState.STA);
t.Start(i);
t.Join();
//SetupImages(i);
parameters.ListImageControls.Add(img);
}
It always crashes on this line: img.Source = bi;
The error is:
"An unhandled exception of type 'System.InvalidOperationException' occurred in WindowsBase.dll
Additional information: The calling thread cannot access this object because a different thread owns it."
Thanks
