在 C# 中创建一个 JSON 数组
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Creating a JSON array in C#
提问by Nealon
Ok, so I am trying to send POST commands over an http connection, and using JSON formatting to do so. I am writing the program to do this in C#, and was wondering how I would format an array of values to be passed as JSON to the server.
好的，所以我正在尝试通过 http 连接发送 POST 命令，并使用 JSON 格式来执行此操作。我正在编写程序以在 C# 中执行此操作，并且想知道如何格式化要作为 JSON 传递到服务器的值数组。
Currently I have this:
目前我有这个：
new {name = "command" , index = "X", optional = "0"}
new {name = "command" , index = "X", optional = "0"}
Which translates to this in JSON:
这在 JSON 中转换为：
"name": "command",
"index": "X",
"optional": "0"
And I want to make an array, called items, where each element contains these three values. So it would essentially be an array of objects, in which the object contains a name, an index, and an optional field.
我想创建一个名为 items 的数组，其中每个元素都包含这三个值。所以它本质上是一个对象数组，其中对象包含一个名称、一个索引和一个可选字段。
My guess was that it would be something along the lines of this:
我的猜测是，它会是这样的：
new {items = [(name = "command" , index = "X", optional = "0"),
(name = "status" , index = "X", optional = "0")]}
Which, if it were correct syntax, would translate to this in JSON:
其中，如果语法正确，将在 JSON 中转换为：
"items":
[
{
"name": "command",
"index": "X",
"optional": "0"
},
{
"name": "status",
"index": "X",
"optional": "0"
}
]
But, evidently I'm doing it wrong. Ideas? Any help is appreciated.
但是，显然我做错了。想法？任何帮助表示赞赏。
采纳答案by Dave Van den Eynde
You're close. This should do the trick:
你很接近。这应该可以解决问题：
new {items = new [] {
new {name = "command" , index = "X", optional = "0"},
new {name = "command" , index = "X", optional = "0"}
}}
If your source was an enumerable of some sort, you might want to do this:
如果您的来源是某种类型的可枚举，您可能想要这样做：
new {items = source.Select(item => new
{
name = item.Name, index = item.Index, options = item.Optional
})};
回答by Leri
You'd better create some class for each item instead of using anonymous objects. And in object you're serializing you should have array of those items. E.g.:
您最好为每个项目创建一些类，而不是使用匿名对象。在您序列化的对象中，您应该拥有这些项目的数组。例如：
public class Item
{
public string name { get; set; }
public string index { get; set; }
public string optional { get; set; }
}
public class RootObject
{
public List<Item> items { get; set; }
}
Usage:
用法：
var objectToSerialize = new RootObject();
objectToSerialize.items = new List<Item>
{
new Item { name = "test1", index = "index1" },
new Item { name = "test2", index = "index2" }
};
And in the result you won't have to change things several times if you need to change data-structure.
结果，如果您需要更改数据结构，您将不必多次更改内容。
p.s. Here'svery nice tool for complex jsons
ps这是一个非常好的复杂jsons工具
回答by Royi Namir
Also , with Anonymous types ( I prefer notto do this) -- this is just anotherapproach.
另外，对于匿名类型（我不喜欢这样做）——这只是另一种方法。
void Main()
{
var x = new
{
items = new[]
{
new
{
name = "command", index = "X", optional = "0"
},
new
{
name = "command", index = "X", optional = "0"
}
}
};
JavaScriptSerializer js = new JavaScriptSerializer(); //system.web.extension assembly....
Console.WriteLine(js.Serialize(x));
}
result :
结果 ：
{"items":[{"name":"command","index":"X","optional":"0"},{"name":"command","index":"X","optional":"0"}]}
{"items":[{"name":"command","index":"X","optional":"0"},{"name":"command","index":"X","optional":"0"}]}
回答by santhosh
new {var_data[counter] =new [] {
new{ "S NO": "+ obj_Data_Row["F_ID_ITEM_MASTER"].ToString() +","PART NAME": " + obj_Data_Row["F_PART_NAME"].ToString() + ","PART ID": " + obj_Data_Row["F_PART_ID"].ToString() + ","PART CODE":" + obj_Data_Row["F_PART_CODE"].ToString() + ", "CIENT PART ID": " + obj_Data_Row["F_ID_CLIENT"].ToString() + ","TYPES":" + obj_Data_Row["F_TYPE"].ToString() + ","UOM":" + obj_Data_Row["F_UOM"].ToString() + ","SPECIFICATION":" + obj_Data_Row["F_SPECIFICATION"].ToString() + ","MODEL":" + obj_Data_Row["F_MODEL"].ToString() + ","LOCATION":" + obj_Data_Row["F_LOCATION"].ToString() + ","STD WEIGHT":" + obj_Data_Row["F_STD_WEIGHT"].ToString() + ","THICKNESS":" + obj_Data_Row["F_THICKNESS"].ToString() + ","WIDTH":" + obj_Data_Row["F_WIDTH"].ToString() + ","HEIGHT":" + obj_Data_Row["F_HEIGHT"].ToString() + ","STUFF QUALITY":" + obj_Data_Row["F_STUFF_QTY"].ToString() + ","FREIGHT":" + obj_Data_Row["F_FREIGHT"].ToString() + ","THRESHOLD FG":" + obj_Data_Row["F_THRESHOLD_FG"].ToString() + ","THRESHOLD CL STOCK":" + obj_Data_Row["F_THRESHOLD_CL_STOCK"].ToString() + ","DESCRIPTION":" + obj_Data_Row["F_DESCRIPTION"].ToString() + "}
}
};
