如何訪問XAML枚舉值

Question

我有一個自定義字典與密鑰作爲枚舉和值作爲自定義對象。我需要在xaml中綁定這個對象。所以我該怎麼做呢？

我想要做的是，

<Button Content="{Binding ButtonGroups[my enum value].Text}"></Button> 

什麼，我都試過了，

<Button Content="{Binding ButtonGroups[local:MyEnum.Report].Text}"></Button> 

<Button Content="{Binding ButtonGroups[x:Static local:MyEnum.Report].Text}"> 
</Button> 

<Button Content="{Binding ButtonGroups[{x:Static local:MyEnum.Report}].Text}"> 
</Button> 

但上述任何下面的代碼顯示枚舉值不工作了me.and，

<Button Content="{x:Static local:MyEnum.Report}"></Button> 

枚舉文件，

public enum MyEnum 
{ 
    Home, 
    Report 
} 

我的字典裏，

IDictionary<MyEnum, Button> ButtonGroups 

Answer 1

您應該只有使用Enum值，但Button沒有Text財產，所以我用Content

<Button Content="{Binding ButtonGroups[Home].Content}"> 

測試例：

Xaml：

<Window x:Class="WpfApplication13.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     Title="MainWindow" x:Name="UI" Width="294" Height="79" > 

    <Grid DataContext="{Binding ElementName=UI}"> 
     <Button Content="{Binding ButtonGroups[Home].Content}" /> 
    </Grid> 
</Window> 

代碼：

public partial class MainWindow : Window, INotifyPropertyChanged 
{ 
    public MainWindow() 
    { 
     InitializeComponent(); 

     ButtonGroups.Add(MyEnum.Home, new Button { Content = "Hello" }); 
     NotifyPropertyChanged("ButtonGroups"); 
    } 

    private Dictionary<MyEnum, Button> _buttonGroups = new Dictionary<MyEnum, Button>(); 
    public Dictionary<MyEnum, Button> ButtonGroups 
    { 
     get { return _buttonGroups; } 
     set { _buttonGroups = value; } 
    } 

    public enum MyEnum 
    { 
     Home, 
     Report 
    } 

    public event PropertyChangedEventHandler PropertyChanged; 
    private void NotifyPropertyChanged(string property) 
    { 
     if (PropertyChanged != null) 
     { 
      PropertyChanged(this, new PropertyChangedEventArgs(property)); 
     } 
    } 
} 

結果：