wpf 从 ListView 获取 GridViewColumn Header 值？
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Get GridViewColumn Header value from ListView?
提问by alexlz
I have this XAML code
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>
And this is code behind
这是背后的代码
for (int i = 0; i < _lvContacts.Items.Count; i++)
{
string header = _lvContacts.Items[i].ToString();
MyFunction(header);
}
How can I get the GridViewColumn Header from ListView?I was trying to get GridView from ItemSources but this is already used by collection!I dont know what else I can say about this.
如何从 ListView 获取 GridViewColumn Header？我试图从 ItemSources 获取 GridView 但这已经被集合使用了！我不知道我还能说些什么。
I hope this is understandable.
我希望这是可以理解的。
回答by Nitin
In your case you can do:
在你的情况下，你可以这样做：
((GridView)_lvContacts.View).Columns[i].Header
回答by Andrew
To get all of the headers, you can use the following code:
要获取所有标头，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;
}
}
回答by Vlad
You can get GridView, and the columns in the following way:
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);
}
Or, you can name the GridView in your xaml:
或者，您可以在您的 xaml 中命名 GridView：
<GridView x:Name="_gridView"...>
And then you can just directly access it from code: _gridView.Columns.
然后你可以直接从代码访问它：_gridView.Columns。
回答by Latency
Use LINQ!!!
使用LINQ！！！
var headers = ((GridView) _lvContacts.View).Columns.ToDictionary(column => column.Header.ToString());
