如何构建字符串以动态访问.resx资源

Question

我想知道如何动态构建字符串以引用我的Resources.resx文件中的字符串？我基本上想在XAML中执行以下等效操作：

这样我就可以获得标题为ToyBlockName或ToyBallName的资源，它应该来自resx，因此可以在必要时进行翻译。然后我希望将这些单独的字符串插入其他字符串的格式中。有很多字符串使用这些名字，所以如果我可以替换单个单词而不是每种玩具的每个字符串的版本，那将是最好的。

一些示例字符串是The {0} comes in a box.，The {0} costs only a few dollars.

本质上试图做到这一点在XAML：

String.Format(Properties.Resources.Default["ToyComesInBox"], 
    Properties.Resources.Default["Toy" + Constants.ToyName + "Name"]); 

（其中ToyName = “阻止” 或者 “球” 等）

有一种在XAML中实现这一点的方法，还是有其他一些我没有想到的方法？

Answer 1

我不认为只用XAML就可以做到这一点，但我们正在使用converter/s来完成。它可能会变得非常混乱，但是如果你设计的比我更好，它就会有更多的潜力，并且它使得代码更好的IMO。

public class LocalizationConverter : IValueConverter 
{ 
    public object Convert(
     object value, 
     Type targetType, 
     object parameter, 
     string language) 
    { 
     string valueString = value as string; 
     var paramString = parameter as string; 

     //so here you have the value of your binding in the value string 
     //and if it's empty (because you don't want to use the bound value 
     //you're setting the value string to be the param string 

     if (string.IsNullOrWhiteSpace(valueString)) 
     { 
      valueString = paramString; 
     } 

     //if value string (formerly your param string is empty just return 
     //there is no value to be found 
     if (string.IsNullOrWhiteSpace(valueString)) 
     { 
      return null; 
     } 

     //now the fun starts :) ,I pass values with small command and 
     //separator symbol to be able to parse my parameters 
     //something like this: 
     //if (paramString.StartsWith("AddAfter|")) 
     //{ 
     // var valToAppend = paramString.Substring("AddAfter|".Length); 
     // return Strings.Get(Strings.Get(valToAppend + valueString)); 
     //} 
     //and this basically does -> append the given parameter string after 
     //the part with the command to the value that comes from the binding 
     //and then uses the resulting string from res dictionary 

     //So you could do something like passing "ToyType|Block" or you can 
     //pass something in the value like Block and then in the parameters 
     //have description ToyType or even pass not string object and get 
     //what you want from it like 
     //if(value is ToyType) 
     //{ 
     // return StringsGet((value as ToyType).Name) 
     //} 


     //Your parsing logic HERE 



     //This is how we get strings from resources in our project 
     //that you already know how to do 

     return Strings.Get(valueString); 
    } 

    public object ConvertBack(
     object value, 
     Type targetType, 
     object parameter, 
     string language) 
    { 
     throw new NotImplementedException(); 
    } 

} 

使用

定义的资源（页或全球）

<converters:LocalizationConverter x:Key="Loc" /> 

使用XAML中

值仅从参数（在这种情况下字符串）

<TextBlock Text="{Binding 
        Converter={StaticResource Loc}, 
        ConverterParameter=ToyBlockName}" /> 

或者只从绑定变量的值（可以是任何类型的对象）从绑定的变量+复杂的参数

<TextBlock Text="{Binding ToyBlockNameBoundValue 
        Converter={StaticResource Loc}}" /> 

或价值可能被解析

<TextBlock Text="{Binding SomeBoundValue 
        Converter={StaticResource Loc}, 
        ConverterParameter=SomeMoreComplex|Parameter}" />