C# 如何绑定GridViewColumn';在代码中显示MemberBinding
我有一个使用GridViewColumnCollection的多列TreeView。根据我的情况,我不知道会有多少列,也不知道它们的标题名。这就是运行时的发现 因此,我需要在代码中创建这些列并动态绑定到它们 好的-创建非常简单:C# 如何绑定GridViewColumn';在代码中显示MemberBinding,c#,wpf,binding,gridviewcolumn,C#,Wpf,Binding,Gridviewcolumn,我有一个使用GridViewColumnCollection的多列TreeView。根据我的情况,我不知道会有多少列,也不知道它们的标题名。这就是运行时的发现 因此,我需要在代码中创建这些列并动态绑定到它们 好的-创建非常简单: GridViewColumn c = new GridViewColumn(); c.Header = "Next Column"; myTree.Columns.Add(c); 现在我遇到了问题-假设我希望绑定到viewModel的“MyName”属性: Bindi
GridViewColumn c = new GridViewColumn();
c.Header = "Next Column";
myTree.Columns.Add(c);
现在我遇到了问题-假设我希望绑定到viewModel的“MyName”属性:
Binding myBinding = new Binding(??);
myBinding.Source = ??
BindingOperations.SetBinding(myTree,GridViewColumn.???? , myBinding);
现在是这个的模板
<DataTemplate x:Key="CellTemplate_Name">
<DockPanel>
<ToggleButton x:Name="Expander"
Margin="{Binding Level,
Converter={StaticResource LevelToIndentConverter},
RelativeSource={RelativeSource AncestorType={x:Type l:TreeListViewItem}}}"
ClickMode="Press"
IsChecked="{Binding Path=IsExpanded,
RelativeSource={RelativeSource AncestorType={x:Type l:TreeListViewItem}}}"
Style="{StaticResource ExpandCollapseToggleStyle}" />
<TextBlock Text="{Binding Name}" />
.
.
.
<Style TargetType="{x:Type l:TreeListViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type l:TreeListViewItem}">
<StackPanel>
<Border Name="Bd"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}">
<GridViewRowPresenter x:Name="PART_Header"
Columns="{Binding Path=Columns,
RelativeSource={RelativeSource AncestorType={x:Type l:TreeListView}}}"
Content="{TemplateBinding Header}" />
</Border>
<ItemsPresenter x:Name="ItemsHost" />
</StackPanel>
绑定现在可以完美地针对标题工作-非常感谢。(从注释中提取答案:)
您可以使用如下代码手动设置绑定:
Binding myBinding = new Binding("MyName");
myBinding.Source = viewModel;
BindingOperations.SetBinding(myTree.Columns[i], GridViewColumn.HeaderProperty, myBinding);
<Grid>
<ListView Margin="5" Name="ListViewTest"></ListView>
</Grid>
其中i
是列数
要设置DisplayMemberBinding
,可以使用更简单的代码:
Binding descriptionBinding = new Binding("Description");
myTree.Columns[i].DisplayMemberBinding = descriptionBinding;
我将其设置为方法
NewGridViewColumn
,将参数header
和bindingName
设置为该方法,您将获得一个绑定完成的GridViewColumn:
private GridViewColumn NewGridViewColumn(string header, string bindingName)
{
GridViewColumn gvc = new GridViewColumn();
gvc.Header = header;
gvc.DisplayMemberBinding = new Binding(bindingName);
return gvc;
}
对于ListView xaml,如下所示:
Binding myBinding = new Binding("MyName");
myBinding.Source = viewModel;
BindingOperations.SetBinding(myTree.Columns[i], GridViewColumn.HeaderProperty, myBinding);
<Grid>
<ListView Margin="5" Name="ListViewTest"></ListView>
</Grid>
结果是:
绑定myBinding=新绑定(“MyName”);myBinding.Source=viewModel代码>听起来不错!但是BindingOperations.SetBinding(myTree,GridViewColumn,myBinding)呢;在这种情况下,设置绑定的前两个参数将使用什么?GridViewColumn不是DO,我将使用哪一个GridViewColumn的DP?可能是BindingOperations.SetBinding(myTree.Columns[I],GridViewColumn.HeaderProperty,myBinding)
其中i
是列数?顺便说一句,GridViewColumn
(好吧,否则它就不会有DPs)。太好了!还有一个问题-如何设置单元格的值绑定?在viewModel中,项公开将在单元格中显示的“描述”。ItemsSource设置为PublicObservableCollection Items-其中,在XAML中,DisplayMemberBinding=“{Binding Description}”。我如何设置DisplayMemberBinding的绑定?谢谢-我知道:)-我没有意识到绑定是从BindingBase派生的-DUH!
public MainWindow()
{
InitializeComponent();
//Give the Source to ListViewTest
//ProduceNames() makes a List<NameClass> that
//NameClass has 3 property Name1,Name2,Nmae3
ListViewTest.ItemsSource = ProduceNames();
GridView gview = new GridView();
//add some GridViewColumns to the gview
gview.Columns.Add(NewGridViewColumn("FirstName","Name1"));
gview.Columns.Add(NewGridViewColumn("SecondName","Name2"));
gview.Columns.Add(NewGridViewColumn("ThirdName","Name3"));
//set the gview to the ListViewTest's View
ListViewTest.View = gview;
}