public void AttributeValueChanged() { // Select the html node. treeView.SelectedNode = htmlTreeNode; treeViewContainer.ShowAttributes(doc.DocumentElement.Attributes); Assert.IsNotNull(attributesGrid.SelectedGridItem); treeViewContainer.IsDirty = false; dirtyChanged = false; treeViewContainer.CallAttributesGridPropertyValueChanged(); Assert.IsTrue(treeViewContainer.IsDirty); Assert.IsTrue(dirtyChanged); }