[Mono-osx] NeedsUpdateConstraints

[thenextman]

I'm using a custom NSView with AutoLayout. In Objective C, I can call:

[self setNeedsUpdateConstraints:YES];

To invalidate constraints and force an update.

I can't make this work with latest MonoMac. I see a property on NSView
(NeedsUpdateConstraints) but setting it to true has no effect. 

Can anyone tell me what I'm doing wrong?

public partial class TestViewController : MonoMac.AppKit.NSView
{
    #region Constructors

    // snip constructors...		
    
    #endregion

		public override void AwakeFromNib()
		{
			Console.WriteLine("awakeFromNib");

			base.AwakeFromNib();
		}

		public override void UpdateConstraints()
		{
			Console.WriteLine("updateConstraints");

			base.UpdateConstraints();
		}

		partial void Invalidate(NSObject sender)
		{
			this.NeedsUpdateConstraints = true; // doesn't work?
		}
	}



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