很抱歉这个问题不是很笼统...
我有一个列表视图,我必须从代码隐藏中填充,并且此列表视图还需要从代码隐藏中获取其 GridViewColumn。
对于字符串,建立连接并不难,但现在我不想创建一个在 ListView 中表示布尔值的椭圆。
XAML 中的代码相当简单,但我无法将其转换为 c# 代码。
以下是 XMAL 代码的一部分:
<ResourceDictionary>
<BooleanToVisibilityConverter x:Key="BoolToVisibility" />
<DataTemplate x:Key="templateAdmin">
<DockPanel>
<Ellipse Width="8" Height="8" Visibility="{Binding Path=isAdmin, Converter={StaticResource BoolToVisibility}}" Fill="Black"/>
</DockPanel>
</DataTemplate>
</ResourceDictionary>
<ListView>
<ListView.View>
<GridView>
<GridViewColumn DisplayMemberBinding="{Binding LastName}" Header="Last Name"/>
<GridViewColumn CellTemplate="{StaticResource templateAdmin}"
<GridViewColumnHeader">
<TextBlock Text="S"/>
</GridViewColumnHeader>
</GridViewColumn>
</GridView>
</ListView.View>
</ListView>
到目前为止,我已经走到了这一步:XAML:
<local:SortableListView >
<ListView.View>
<GridView x:Name="GroupListGridView" />
</ListView.View>
</local:SortableListView>
在代码中,我有一个Collection<GridViewColumn> GridViewColumns
,我循环并将所有项目添加到GroupListGridView
.我有一个功能来填充GridViewColumns
集合:
private void CreateGridViews()
{
//Creating the Text was easy!
GridViewColumns.add(new GridViewColumn(){ Header = "LastName", DisplayMemberBinding = new Binding("LastName") });
//Creating the Ellipse was harder!
GridViewColumn gvc = new GridViewColumn();
DataTemplate dt = new DataTemplate();
gvc.DisplayMemberBinding = new Binding("isAdmin");
FrameworkElementFactory fef = new FrameworkElementFactory(typeof(Ellipse));
fef.SetValue(Ellipse.WidthProperty, 8.0D);
fef.SetValue(Ellipse.HeightProperty, 8.0D);
fef.SetValue(Ellipse.FillProperty, new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Black));
//I'm guessing that somewhere here there should be some binding to the visibility property and some sort of conversion done... But I can't figure out how!
dt.VisualTree = fef;
gvc.CellTemplate = dt;
GridViewColumns.Add(gvc);
}
我不认为我离...只是我无法弄清楚最后的步骤!
缺少的行是:
var ellipseVisBinding = new Binding("isAdmin");
ellipseVisBinding.Converter = new BooleanToVisibilityConverter();
fef.SetBinding(Ellipse.VisibilityProperty, ellipseVisBinding);
(我注意到您已从代码版本中排除了模板中的 DockPanel,所以我也将其删除了)