在WPF ComboBox中查找项目

var comboBox = (ComboBox)FindAncestor(typeof(ComboBox));

var items = comboBox.Items;

bool contains = items.Contains(itemToFind);

int index = items.IndexOf(itemToFind);

var selectedItem = comboBox.SelectedItem;

int selectedIndex = comboBox.SelectedIndex;

var selectedValue = comboBox.SelectedValue;

var selectedValuePath = comboBox.SelectedValuePath;

var displayMemberPath = comboBox.DisplayMemberPath;

var itemContainerGenerator = comboBox.ItemContainerGenerator;

var itemContainer = itemContainerGenerator.ContainerFromItem(itemToFind);

var visualTree = VisualTreeHelper.GetChild(comboBox, 0) as Panel;

var child = VisualTreeHelper.GetChild(visualTree, index);

var template = comboBox.ItemTemplate;

var content = template.LoadContent();

var contentChild = VisualTreeHelper.GetChild(content, 0);

var propertyValue = contentChild.GetValue(property);