Okay so this question is awesome and easy to understand. I would like to implement a StackPanel into a TreeViewItem in that exact way. However, when I try to set the Orientation of the panel, the comiler complains about implementing IEnumerable.
Here's my TreeViewItem -> StackPanel implementation:
public static TreeViewItem newnode = new TreeViewItem()
{
Header = new StackPanel {
Orientation.Horizontal
}
};
I haven't worked with IEnumerable before, but I tried implementing it by importing System.Collections and then setting my class to inherit from IEnumerable. After doing that I get a compiler error that says my class does not implement System.Collections.IEnumerable.GetEnumerator().
After looking at a few online resources I learned that apparently IEnumerable<T> contains GetEnumerable().
First of all, am I on the right track? If so, how do I get this setup correctly?
Also, if I need to inherit from IEnumerable<T> what would I put in the <> if I am not working with some kind of List or Template?
Thank for your help.
Exact Compiler Error as Requested
'Project.Folder.Class' does not implement interface member 'System.Collections.IEnumerable.GetEnumerator()'
If you want to initialise a specific property on an object, you should use the Object Initialiser syntax by naming the property you wish to initialise:
TreeViewItem newNode = new TreeViewItem()
{
Header = new StackPanel { Orientation = Orientation.Horizontal}
};
In your case, the compiler is telling you that you can't initialise a StackPanel using the Collection Initializer syntax.
This:
new StackPanel
{
Orientation.Horizontal
}
Will produce the error you're seeing:
Error 1 Cannot initialize type 'System.Windows.Controls.StackPanel' with a collection initializer because it does not implement 'System.Collections.IEnumerable'
Because you're trying to initialise the StackPanel as though it was a collection of System.Windows.Control.Orientation objects, e.g. List<Orientation>.