Question

我有一个具有多个按钮的用户控件，在应用程序中我在多个窗口上使用此用户控件，但是如果用户在应用程序中选择一个窗口1并显示，我想要折叠（显示/隐藏）一些按钮如果用户在应用程序中选择窗口2

，则使用相同的按钮

UserControl

<Grid x:Name="girdBtuWidow" >
    <StackPanel Orientation="Horizontal">
        <Button Content="add" x:Name="add" Visibility="{Binding window1_Loaded}" x:FieldModifier="public" Height="50"  Width="100" Margin="0"  Click="add_click"  />
        <Button Content="show history" x:Name="Personal" Height="50"  Width="100" Margin="0" />
        <Button Content="Show Customer" x:Name="Customer" Height="50"  Width="100" Margin="0" />
    </StackPanel>
</Grid>

如何从应用程序窗口设置用户控件中按钮的属性（可见性）？

Answer 1

您不需要在此处使用module Messages open Bizmonger.Patterns let Publish (message:string, payload:_) = MessageBus.Publish(message, payload)活动。

您需要为open Messages ... Publish("SOME_MESSAGE", null);中的每个按钮公开Window_Loaded属性。

在Visibility中为UserControls属性的每个按钮添加绑定：

UserControl

请务必向Visibility添加Visibility="{Binding AddButtonVisibility}" Visibility="{Binding ShowHistoryButtonVisibility}" Visibility="{Binding ShowCustomerButtonVisibility}"，我通常使用自我：

DataContext

在UserControl代码后面为上面的每个Bindings添加依赖属性：

DataContext="{Binding RelativeSource={RelativeSource Self}}"

在Visual Studio中，依赖项属性有一个代码段快捷方式 - 键入UserControl并点击public Visibility AddButtonVisibility { get { return (Visibility)GetValue(AddButtonVisibilityProperty); } set { SetValue(AddButtonVisibilityProperty, value); } } // Using a DependencyProperty as the backing store for AddButtonVisibility. This enables animation, styling, binding, etc... public static readonly DependencyProperty AddButtonVisibilityProperty = DependencyProperty.Register("AddButtonVisibility", typeof(Visibility), typeof(UserControl1), new PropertyMetadata(Visibility.Visible)); public Visibility ShowHistoryButtonVisibility { get { return (Visibility)GetValue(ShowHistoryButtonVisibilityProperty); } set { SetValue(ShowHistoryButtonVisibilityProperty, value); } } // Using a DependencyProperty as the backing store for ShowHistoryButtonVisibility. This enables animation, styling, binding, etc... public static readonly DependencyProperty ShowHistoryButtonVisibilityProperty = DependencyProperty.Register("ShowHistoryButtonVisibility", typeof(Visibility), typeof(UserControl1), new PropertyMetadata(Visibility.Visible)); public Visibility ShowCustomerButtonVisibility { get { return (Visibility)GetValue(ShowCustomerButtonVisibilityProperty); } set { SetValue(ShowCustomerButtonVisibilityProperty, value); } } // Using a DependencyProperty as the backing store for ShowCustomerButtonVisibility. This enables animation, styling, binding, etc... public static readonly DependencyProperty ShowCustomerButtonVisibilityProperty = DependencyProperty.Register("ShowCustomerButtonVisibility", typeof(Visibility), typeof(UserControl1), new PropertyMetadata(Visibility.Visible));两次。

现在，要使用刚刚创建的属性，请将Usercontrol放到相关窗口中：

propdp

tab是项目命名空间＆＃39;别名 - 在<local:UserControl1 AddButtonVisibility="Collapsed" />的顶部定义。您只需将local拖放到窗口即可，它将为您执行此操作。（您可能需要重建才能在工具箱中看到Window。

现在，您应该会看到UserControl崩溃的控件。

为了完整起见，这里是UserControls方面的事情：

UserControl Xaml：

Add Button

Window1.Xaml：

XAML

Answer 2

public static readonly DependencyProperty onBackVisibilityProperty =
     DependencyProperty.Register("onBackVisibility", typeof(Visibility), typeof(MyToolBar), new PropertyMetadata(Visibility.Visible));
    public Visibility onBackVisibility
    {
        get { return (Visibility)GetValue(onBackVisibilityProperty); }
        set { SetValue(onBackVisibilityProperty, value); }
    }

//在此goto xaml之后

Answer 3

public static readonly DependencyProperty onBackVisibilityProperty =
     DependencyProperty.Register("onBackVisibility", typeof(Visibility), typeof(MyToolBar), new PropertyMetadata(Visibility.Visible));
    public Visibility onBackVisibility
    {
        get { return (Visibility)GetValue(onBackVisibilityProperty); }
        set { SetValue(onBackVisibilityProperty, value); }
    }

Answer 4

Button Name="tbrBack" 
ToolTip="{DynamicResource Back}" 
VerticalAlignment="Center" 
VerticalContentAlignment="Center" 
Click="tbrBack_Click" 
Visibility="{Binding onBackVisibility ,ElementName = usercontrol}

如何从主窗口隐藏usercontrol中的按钮？

4 个答案: