public void OnDisable()
{
SaveSplitterPosition();
m_ExpressionGraph.nodeChanged -= OnNodePropertiesChanged;
m_ExpressionGraph.graphChanged -= OnGraphChanged;
m_ExpressionGraph.selectionChanged -= OnSelectionChanged;
m_ExpressionGraph.Dispose();
m_ExpressionGraph = null;
m_NodeEditor.propertiesChanged -= OnNodePropertiesChanged;
m_NodeEditor.variableAdded -= OnNodeVariableAdded;
m_NodeEditor.variableRemoved -= OnNodeVariableRemoved;
m_NodeEditor.variableRenamed -= OnNodeVariableRenamed;
m_NodeEditor.Dispose();
m_NodeEditor = null;
m_Expression.Dispose();
m_Expression = null;
}
