Question

我是WPF的新手，我想知道是否可以创建一个ListBox可以接受其项目的任何类的PopUp用户控件吗？

我这里有xaml代码，用于“ Tipo”类的对象列表，但是我想将此用户控件用于另一个类，比如说“ Person”类。

<UserControl 

...

    <UserControl.Resources>
        <local:BoolToInvertedBoolConverter x:Key="converter"/>
    </UserControl.Resources>


    <Grid x:Name="gridPrincipal">

        <ToggleButton x:Name="tbTipo" Grid.Row="0" Background="{Binding Path=ColorFondo}" Foreground="{Binding Path=ColorTexto}" Opacity="1" Content="{Binding Path=ContenidoToggleButton}" IsEnabled="{Binding ElementName=Popup1, Path=IsOpen, Converter={StaticResource converter}}" />

        <Popup x:Name="Popup1" Grid.Row="0" Grid.Column="1" AllowsTransparency="True"  Placement="MousePoint" Focusable="False" StaysOpen="False" PopupAnimation="Slide" PlacementTarget="{Binding ElementName=tbTipo}" IsOpen="{Binding IsChecked, ElementName=tbTipo, Mode=TwoWay}" >

            <StackPanel Orientation="Vertical" >

                <Grid Margin="0,10,0,0" Background="LightBlue" Height="Auto">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="*"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>

                    <CheckBox Name="chkTodos" Grid.Column="2" Content="Seleccionar todos" VerticalContentAlignment="Center" MinHeight="25" Margin="0,0,10,0" IsChecked="{Binding SeleccionarTodos}" />
                </Grid>

                <ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto" MaxHeight="550" MaxWidth="400" Opacity="0.9">
                    <Grid Height="Auto" Width="Auto"  HorizontalAlignment="Center" VerticalAlignment="Stretch">

                        <StackPanel Orientation="Vertical" Width="Auto" HorizontalAlignment="Stretch">

                            <ListBox Name="lbTipo" ItemsSource="{Binding ListTipos, Mode=TwoWay}" Background="LightGray" HorizontalContentAlignment="Stretch" >
                                <ListBox.ItemTemplate>
                                    <DataTemplate DataType="{x:Type local:Tipo}">
                                        <DataTemplate.Resources>
                                            <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="LightBlue"/>
                                        </DataTemplate.Resources>

                                        <Grid Background="{Binding Path=ColorVigencia}" >
                                            <CheckBox VerticalContentAlignment="Center" IsChecked="{Binding IsChecked}" Focusable="False" Content="{Binding Descripcion}" />
                                        </Grid>


                                    </DataTemplate>
                                </ListBox.ItemTemplate>
                            </ListBox>
                        </StackPanel>

                    </Grid>
                </ScrollViewer>
            </StackPanel>



        </Popup>


    </Grid>
</UserControl>

Answer 1

我想您可以使用数据模板来做到这一点。这样，您只需为ListBox设置ItemsSource，WPF就会根据对象类型确定要使用的数据模板。

这里有一个https://www.tutorialspoint.com/mvvm/mvvm_wpf_data_templates.htm

的例子

<UserControl.Resources> 

   <DataTemplate DataType = "{x:Type data:Student}">

      <StackPanel Orientation = "Horizontal"> 
         <TextBox Text = "{Binding Path = FirstName, Mode = TwoWay}" 
            Width = "100" Margin = "3 5 3 5"/> 

         <TextBox Text = "{Binding Path = LastName, Mode = TwoWay}" 
            Width = "100" Margin = "0 5 3 5"/> 

         <TextBlock Text = "{Binding Path = FullName, Mode = OneWay}" 
            Margin = "0 5 3 5"/> 

      </StackPanel> 

   </DataTemplate> 
</UserControl.Resources>

<Grid> 
   <ListBox ItemsSource = "{Binding Students}"/> 
</Grid>

创建一个适用于不同类型的自定义PopUp WPF

1 个答案: