显示数据调试控制台

Question

我写的应用程序为UWP

我有这样的代码

var p = await wc.GetProducts(new Dictionary<string, string>() { 
      { "orderby", "id" }, { "filter[search]", "1884" } 
      }); 

我尝试从字典中是这样显示的数据。

Debug.WriteLine("There"); 

     Debug.WriteLine(p.products); 

但它不起作用。

如何显示字典的数据？

Answer 1

To read a Dictionary -- 
foreach(KeyValuePair<string,string> kvp in p){ 
    Console.WriteLine(kvp.Key); 
    Console.WriteLine(kvp.Value); 
} 
foreach(string key in p.Keys){ 
    Console.WriteLine(key); 
    Console.WriteLine(p[key]);//value 
} 
foreach(string value in p.Values){ 
    Console.WriteLine(value); 
} 

但你的问题是，P是一类叫做产品：

Product p = new Product() 
     { 
      name = "test product 8", 
      title = "test product 8", 
      description = "test product 8", 
      price = 8.0M 
     }; 

你会访问p一样的性质：

p.name; 
p.title; 
p.description; 
p.price; 

Debug.WriteLine(p.name); 
Debug.WriteLine(p.title);//etc 

Answer 2

哪种类型的呢GetProducts()回报？

如果它只是一个Dictionary你可以做到以下几点：

foreach(var key in p.Keys) 
{ 
    Debug.WriteLine(key); 
} 

Answer 3

使用下面的扩展类（需要Newtonsoft JSON库），您可以得到任何对象的JSON字符串有或没有可读的格式。

使用该类获取可读的JSON字符串;

var p = await wc.GetProducts(new Dictionary<string, string>() { 
    { "orderby", "id" }, { "filter[search]", "1884" } 
    }); 

var jsonString = p.ToFormattedJsonString(); 

Debug.WriteLine(jsonString); 

使用该类获取一个没有格式的普通JSON字符串;

var p = await wc.GetProducts(new Dictionary<string, string>() { 
    { "orderby", "id" }, { "filter[search]", "1884" } 
    }); 

var jsonString = p.ToJsonString(); 

Debug.WriteLine(jsonString); 

您还可以通过添加您自己的扩展方法（如下面）来简化上述操作;

public static void ToDebug(this object data) 
{ 
    Debug.WriteLine(data.ToFormattedJsonString()); 
} 

扩展类;

using System.Text; 
using Newtonsoft.Json; 

namespace System 
{ 
    public static class JsonExtensions 
    { 
     public static string ToFormattedJsonString(this object obj, bool indentWithTab) 
     { 
      return indentWithTab 
       ? ToFormattedJsonString(obj, "\t") 
       : ToFormattedJsonString(obj); 
     } 

     public static string ToFormattedJsonString(this object obj, string indentString = " ") 
     { 
      return FormatJson(obj.ToJsonString(), indentString); 
     } 

     public static string ToJsonString(this object obj) 
     { 
      return JsonConvert.SerializeObject(obj); 
     } 

     public static T DeserializeJsonString<T>(this string jsonString) 
     { 
      return JsonConvert.DeserializeObject<T>(jsonString); 
     } 

     private static string FormatJson(string jsonString, string indentString) 
     { 
      var indent = 0; 
      var quoted = false; 
      var builder = new StringBuilder(); 
      for (var i = 0; i < jsonString.Length; i++) 
      { 
       var character = jsonString[i]; 
       switch (character) 
       { 
        case '{': 
        case '[': 
         builder.Append(character); 
         if (!quoted) 
         { 
          builder.AppendLine(); 
          builder.RepeatAppend(++indent, indentString); 
         } 
         break; 
        case '}': 
        case ']': 
         if (!quoted) 
         { 
          builder.AppendLine(); 
          builder.RepeatAppend(--indent, indentString); 
         } 
         builder.Append(character); 
         break; 
        case '"': 
         builder.Append(character); 
         bool escaped = false; 
         var index = i; 
         while (index > 0 && jsonString[--index] == '\\') 
          escaped = !escaped; 
         if (!escaped) 
          quoted = !quoted; 
         break; 
        case ',': 
         builder.Append(character); 
         if (!quoted) 
         { 
          builder.AppendLine(); 
          builder.RepeatAppend(indent, indentString); 
         } 
         break; 
        case ':': 
         builder.Append(character); 
         if (!quoted) 
          builder.Append(" "); 
         break; 
        default: 
         builder.Append(character); 
         break; 
       } 
      } 
      return builder.ToString(); 
     } 

     public static StringBuilder RepeatAppend(this StringBuilder builder, int count, string format, 
      params object[] parameters) 
     { 
      if (count <= 0 || string.IsNullOrEmpty(format)) 
       return builder; 

      for (int i = 0; i < count; i++) 
      { 
       builder.AppendFormat(format, parameters); 
      } 

      return builder; 
     } 
    } 
}