Check Object type in List of Objects

Question

Got a WPF Form with a StackPanel containing Expanders with StackPanels in it.

Answer 1

You can use OfType<> to filter for just a specific type in a list. I understand that you want to loop through all the StackPanels (in the list), so you can do something like this:

foreach(var panel in tmpList.OfType()){
    //your work here ...
}

If you want to check if there is any StackPanel, then use this:

if(tmpList.OfType().Any()){
    //...
}