public UIStyleRule(bool invert, string attributeName, string attributeValue, UIStyleRule next = null)
{
this.invert = invert;
this.attributeName = attributeName;
this.attributeValue = attributeValue;
this.next = next;
}
public UIStyleRule(bool invert, StyleAttributeExpression expression, UIStyleRule next = null)
{
this.invert = invert;
this.expression = expression;
this.next = next;
}