c# - 使用 FrameworkElementFactory 在 WPF 中创建网格

Question

简而言之，我正在将静态 XAML 描述 UI 转换为动态创建的 UI。这是我想在 c# 中复制的 XAML 代码:

<GridViewColumn.HeaderTemplate>
    <DataTemplate>
        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            <CheckBox Grid.Column="0"
                      Margin="4,0,5,0"
                      VerticalAlignment="Center"
                      IsChecked="{Binding Path=DataContext.AreAllSelected,
                                          RelativeSource={RelativeSource AncestorType=ListView},
                                          Mode=OneWay}"
                      Command="{Binding Path=DataContext.ChangeAllSourcesSelection,
                                        RelativeSource={RelativeSource AncestorType=ListView}}" />
            <TextBlock Grid.Column="1"
                       VerticalAlignment="Center"
                       UI:DisplayedObjectProperties.DisplayedObject="{Binding}" />
        </Grid>
    </DataTemplate>
</GridViewColumn.HeaderTemplate>

这是我想出的:

GridViewColumn col = new GridViewColumn();

DataTemplate template = new DataTemplate();

FrameworkElementFactory gridFactory = new FrameworkElementFactory(typeof(Grid));
FrameworkElementFactory col1 = new FrameworkElementFactory(typeof(ColumnDefinition));
FrameworkElementFactory col2 = new FrameworkElementFactory(typeof(ColumnDefinition));

col1.SetValue(ColumnDefinition.WidthProperty, new GridLength(1, GridUnitType.Auto));
col2.SetValue(ColumnDefinition.WidthProperty, new GridLength(1, GridUnitType.Star));
gridFactory.AppendChild(col1);
gridFactory.AppendChild(col2);

FrameworkElementFactory boxFactory = new FrameworkElementFactory(typeof(CheckBox));
boxFactory.SetValue(Grid.ColumnProperty, 1);
boxFactory.SetValue(FrameworkElement.VerticalAlignmentProperty, VerticalAlignment.Center);
FrameworkElementFactory tBlockFactory = new FrameworkElementFactory(typeof(TextBlock));
tBlockFactory.SetValue(Grid.ColumnProperty, 2);
tBlockFactory.SetValue(FrameworkElement.VerticalAlignmentProperty, VerticalAlignment.Center);
tBlockFactory.SetValue(TextBlock.TextProperty, LanguageManager.Parse(columnVM.ColumnName));

gridFactory.AppendChild(boxFactory);
gridFactory.AppendChild(tBlockFactory);
template.VisualTree = gridFactory;

col.HeaderTemplate = template;

但是这并没有给我预期的效果，因为 CheckBox 和 TextBlock 似乎都在同一列中。如何将每个分配给相应的列？如您所见，我做了一些奇怪的附加操作，因为我不知道自己在做什么。

Here is the result I want:

Answer 1

您应该将 TextBlock 的 Grid.Column 附加属性设置为 1:

tBlockFactory.SetValue(Grid.ColumnProperty, 1);

没有理由为 boxFactory 设置属性，因为它应该具有默认值 0。