將幾個ToggleButton IsEnabled屬性綁定到其他ToggleButtons

Question

我有一個頁面，其中包含16個ToggleButtons，其中12個默認爲禁用狀態，只有在其他4個ToggleButton被點擊時纔會啓用。有沒有辦法將12個禁用按鈕的IsEnabled屬性連接到啓用IsChecked屬性的按鈕？

我設法做到這一點之前（我目前正試圖做到這一點）使用幾個foreach循環，但我想必須有一個更優雅的方式來檢查是否IsChecked ==真正的不循環通過孩子他們的父網格的元素。不幸的是原始項目在重新格式化時丟失了，並且沒有項目文件的備份，所以代碼必須從頭開始重寫。

Answer 1

開始。

<Page 
x:Class="StackOverflowMultiButton.MainPage" 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
xmlns:local="using:StackOverflowMultiButton" 
xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
mc:Ignorable="d"> 

<Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}"> 
    <StackPanel Orientation="Horizontal"> 
    <StackPanel> 
      <ToggleButton x:Name="ToggleButton1" IsChecked="{Binding tbt1_isChecked, Mode=TwoWay}"/> 
      <ToggleButton x:Name="ToggleButton2" IsChecked="{Binding tbt2_isChecked, Mode=TwoWay}"/> 
      <ToggleButton x:Name="ToggleButton3" IsChecked="{Binding tbt3_isChecked, Mode=TwoWay}"/> 
      <ToggleButton x:Name="ToggleButton4" IsChecked="{Binding tbt4_isChecked, Mode=TwoWay}"/> 
    </StackPanel> 
    <StackPanel> 
      <ToggleButton x:Name="ToggleButton5" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton6" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton7" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton8" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton9" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton10" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton11" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton12" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton13" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton14" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton15" IsEnabled="{Binding CommonIsEnabled}"/> 
      <ToggleButton x:Name="ToggleButton16" IsEnabled="{Binding CommonIsEnabled}"/> 
    </StackPanel> 

    </StackPanel> 
</Grid> 

然後後面的代碼有：在解決方案資源管理

查找的MainPage，完全取代的MainPage XAML

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.IO; 
using System.Linq; 
using Windows.Foundation; 
using Windows.Foundation.Collections; 
using Windows.UI.Xaml; 
using Windows.UI.Xaml.Controls; 
using Windows.UI.Xaml.Controls.Primitives; 
using Windows.UI.Xaml.Data; 
using Windows.UI.Xaml.Input; 
using Windows.UI.Xaml.Media; 
using Windows.UI.Xaml.Navigation; 

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238 

namespace StackOverflowMultiButton 
{ 
    /// <summary> 
    /// An empty page that can be used on its own or navigated to within a Frame. 
    /// </summary> 
    public sealed partial class MainPage : Page 
    { 
     public MainPage() 
     { 
      this.InitializeComponent(); 
      this.DataContext = new MainPage_ViewModel(); 
     } 

    /// <summary> 
    /// Invoked when this page is about to be displayed in a Frame. 
    /// </summary> 
    /// <param name="e">Event data that describes how this page was reached. The Parameter 
    /// property is typically used to configure the page.</param> 
    protected override void OnNavigatedTo(NavigationEventArgs e) 
    { 
    } 
} 

public class MainPage_ViewModel : INotifyPropertyChanged 
{ 

    public event PropertyChangedEventHandler PropertyChanged; 

    private void OnPropertyChanged(string propertyName) 
    { 
     if (this.PropertyChanged != null) 
     { 
      this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); 
     } 
    } 

    bool _tbt1_isChecked = false; 
    public bool tbt1_isChecked 
    { 
     get { 

      return this._tbt1_isChecked; 
     } 
     set { 

      if (this._tbt1_isChecked == value) 
       return; 

      this._tbt1_isChecked = value; 
      OnPropertyChanged("tbt1_isChecked"); 
      OnPropertyChanged("CommonIsEnabled"); 
     } 
    } 

    bool _tbt2_isChecked = false; 
    public bool tbt2_isChecked 
    { 
     get 
     { 

      return this._tbt2_isChecked; 
     } 
     set 
     { 

      if (this._tbt2_isChecked == value) 
       return; 

      this._tbt2_isChecked = value; 
      OnPropertyChanged("tbt2_isChecked"); 
      OnPropertyChanged("CommonIsEnabled"); 
     } 
    } 

    bool _tbt3_isChecked = false; 
    public bool tbt3_isChecked 
    { 
     get 
     { 

      return this._tbt3_isChecked; 
     } 
     set 
     { 

      if (this._tbt3_isChecked == value) 
       return; 

      this._tbt3_isChecked = value; 
      OnPropertyChanged("tbt3_isChecked"); 
      OnPropertyChanged("CommonIsEnabled"); 
     } 
    } 

    bool _tbt4_isChecked = false; 
    public bool tbt4_isChecked 
    { 
     get 
     { 

      return this._tbt4_isChecked; 
     } 
     set 
     { 

      if (this._tbt4_isChecked == value) 
       return; 

      this._tbt4_isChecked = value; 
      OnPropertyChanged("tbt4_isChecked"); 
      OnPropertyChanged("CommonIsEnabled"); 
     } 
    } 



    public bool CommonIsEnabled 
    { 
     get 
     { 

      return this._tbt1_isChecked || 
       this._tbt2_isChecked || 
       this._tbt3_isChecked || 
       this._tbt4_isChecked; 
      } 
     } 

    } 
} 

運行應用程序，看看它是否做了什麼你需要。

Answer 2

捕獲前四個按鈕的Click事件。讓他們調用save eventhandler。

在eventhandle你寫的代碼：從空白的win8商店應用模板

bool enabled = tb1.IsChecked && tb2.IsChecked && tb3.IsChecked && tb4.IsChecked; 
tb5.Enabled = tb6.Enabled = ... = tb16.Enabled = enabled;