wpf - 从 ListView 获取 GridViewColumn 标题值？

Question

我有这个 XAML 代码

<ListView Name="_lvContacts" ItemsSource="{Binding AccountPhonesList}"
                <ListView.View>
                    <GridView>
                        <GridViewColumn Header="{Binding Path=ColumnHeader1}" DisplayMemberBinding="{Binding Path=Home}" Width="70" />
                        <GridViewColumn Header="{Binding Path=ColumnHeader2}" DisplayMemberBinding="{Binding Path=Office}" Width="70" />
                        <GridViewColumn Header="{Binding Path=ColumnHeader3}" DisplayMemberBinding="{Binding Path=Mobile}" Width="70" />
                        <GridViewColumn Header="{Binding Path=ColumnHeader4}" DisplayMemberBinding="{Binding Path=Other}" Width="70" />
                        <GridViewColumn Header="{Binding Path=ColumnHeader5}" DisplayMemberBinding="{Binding Path=Email}" Width="70" />
                    </GridView>
                </ListView.View>
            </ListView>

这是背后的代码

            for (int i = 0; i < _lvContacts.Items.Count; i++)
            {
                string header = _lvContacts.Items[i].ToString();
                MyFunction(header);
            }

如何从 ListView 获取 GridViewColumn 标题？我试图从 ItemSources 获取 GridView，但这已被集合使用！我不知道我还能说什么。

我希望这是可以理解的。

Answer 1

在您的情况下，您可以执行以下操作：

((GridView)_lvContacts.View).Columns[i].Header

Answer 2

要获取所有标题，您可以使用以下代码：

List<GridViewColumnHeader> headers = GetVisualChildren<GridViewColumnHeader>(_lvContacts).ToList();

public static IEnumerable<T> GetVisualChildren<T>(DependencyObject parent) where T : DependencyObject
    {
        int childrenCount = VisualTreeHelper.GetChildrenCount(parent);
        for (int i = 0; i < childrenCount; i++)
        {
            DependencyObject child = VisualTreeHelper.GetChild(parent, i);
            if (child is T)
                yield return (T)child;

            foreach (var descendant in GetVisualChildren<T>(child))
                yield return descendant;
        }
    }

Answer 3

您可以通过GridView以下方式获取 , 和列：

GridView gridView = (GridView)_lvContacts.View;
foreach(GridViewColumn column in gridView.Columns)
    // do something with column.Header. Your example:
    if (ItsTheColumnHeaderIWant(column.Header))
    {
        MyFunction(column.Header);
    }

或者，您可以在 xaml 中命名 GridView：

<GridView x:Name="_gridView"...>

然后你可以直接从代码中访问它：_gridView.Columns.

Answer 4

使用 LINQ！！！

  var headers = ((GridView) _lvContacts.View).Columns.ToDictionary(column => column.Header.ToString());