How do I force an open part GUI to resize itself after making changes to it?

[alexalex]

The code I have makes changes to part GUI's.  But it ends up looking odd in open part GUI's as the window doesn't automatically resize and refit to the changes, so unless I manually refresh I get odd overlaps like this -

How do I force it to reload the open part GUI every time I make changes to it?  Here's the relevant bit of my code.

		public virtual void FixedUpdate()
		{
			if (Lib.IsEditor() && sample_amount > 0)
			{
				Capacity = sample_amount.ToString("F2") + " " + Local.SCIENCEARCHIVE_samples;
				Fields["Capacity"].guiActiveEditor = true;
			}

			if (Lib.IsFlight() && (remainingSampleMass / ExpInfo.SampleMass) > 0)
			{
				Capacity = (remainingSampleMass / ExpInfo.SampleMass).ToString("F2") + " " + Local.SCIENCEARCHIVE_samples;
				Fields["Capacity"].guiActive = true;
			}

			else if (Lib.IsFlight() && (remainingSampleMass / ExpInfo.SampleMass) <= 0)
			{
				Fields["Capacity"].guiActive = false;
			}

 

[alexalex]

Update :

I figured it out though its probably not the most elegant method.  I'm putting it out here anyway though in case its useful to someone else at some point.  I used boolean true or false and get/set accessors so that a part window update gets triggered whenever false changes to true or vice versa.  Like so -

		private bool _UpdateGUI;
		public bool UpdateGUI
		{
			get
			{
				return _UpdateGUI;
			}
			set
			{
				if (value != _UpdateGUI)
				{
					part.PartActionWindow.displayDirty = true;
				}
				_UpdateGUI = value;
			}
		}

// And

		public virtual void FixedUpdate()
		{
			if (Lib.IsEditor() && sample_amount > 0)
			{
				Capacity = sample_amount.ToString("F2") + " " + Local.SCIENCEARCHIVE_samples;
				Fields["Capacity"].guiActiveEditor = true;
			}

			if (Lib.IsFlight() && (remainingSampleMass / ExpInfo.SampleMass) > 0)
			{
				Capacity = (remainingSampleMass / ExpInfo.SampleMass).ToString("F2") + " " + Local.SCIENCEARCHIVE_samples;
				Fields["Capacity"].guiActive = true;
				UpdateGUI = false;
			}

			else if (Lib.IsFlight() && (remainingSampleMass / ExpInfo.SampleMass) <= 0)
			{
				Fields["Capacity"].guiActive = false;
				UpdateGUI = true;
			}