C# 将 KeyValuePair 或 IDictionary 列表从 Javascript 传递给 Web Api 控制器
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Passing List of KeyValuePair or IDictionary to Web Api Controller from Javascript
提问by user1810582
I have a web api controller to which I would like to post two parameters. One is a flat int ID, and the other is an IDictionary or similar equivalent.
我有一个 web api 控制器，我想向其发布两个参数。一个是 flat int ID，另一个是 IDictionary 或类似的等价物。
[HttpPost]
public void DoStuff(int id, [FromBody]IDictionary<int, int> things)
{
}
var things = new Array();
things.push({ 1: 10 }); // tried things.push({ Key: 1, Value: 10 })
things.push({ 2: 11 });
$.ajax({
url: '/api/DoStuff?id=' + id,
data: '=' + JSON.stringify(things), // tried what seems like 100 different things here
type: 'POST',
dataType: 'json'
});
No matter what I try in the data param (data: things, data: '=' + things), the Dictionary does not come through to the api controller. It is either null or has one bogus entry ({0, 0}).
无论我在数据参数 ( data: things, data: '=' + things) 中尝试什么，字典都不会到达 api 控制器。它要么为空，要么有一个虚假条目 ({0, 0})。
I have also tried to send the Dictionary in the Uri - no go.
我还尝试在 Uri 中发送字典 - 不行。
How can I send the dictionary or key value pair to the api controller?
如何将字典或键值对发送到 api 控制器？
采纳答案by carlosfigueira
You don't need an array - you need a simple JS object (which maps to a dictionary). This code should work:
您不需要数组 - 您需要一个简单的 JS 对象（映射到字典）。此代码应该工作：
var things = {};
things['1'] = 10;
things['2'] = 11;
$.ajax({
url: '/api/DoStuff?id=' + id,
data: JSON.stringify(things),
contentType: 'application/json'
type: 'POST',
dataType: 'json'
});
回答by maxlego
dictionary is like an array of key-value pairs. you have to send
字典就像一个键值对数组。你必须发送
var data = {}
data['things[0].Key'] = x
data['things[0].Value'] = y
// etc
EDIT:
编辑：
your js should look something like this
你的 js 应该是这样的
var data = { };
data['things[0].Key'] = 1;
data['things[0].Value'] = 1;
data['things[1].Key'] = 22;
data['things[1].Value'] = 12;
$.ajax({
url: /api/DoStuff?id=' + id,
data: data,
type: 'POST',
dataType: 'json'
});
and action something like this
并采取这样的行动
public ActionResult DoStuff(int id, Dictionary<int, int> things)
{
// ...
}
回答by Cesar Daniel
This one worked for me:
这个对我有用：
var settings = [];
settings.push({ key: "setting01", value: "Value01" });
settings.push({ key: "setting02", value: "Value02" });
回答by cr1pto
This is really old, but in JS I created an object like @cesardaniel:
这真的很旧，但在 JS 中我创建了一个像 @cesardaniel 这样的对象：
var dictionary = [];
dictionary.push({ key: 1, value: [1,2,3,4,5] });
dictionary.push({ key: 2, value: [6,7,8,9,0] });
but my object shape in .net was of type Dictionary<KeyValuePair<int, IEnumerable<int>>. The web api was then able to pick it up. Hope this helps a future reader!
但我在 .net 中的对象形状是Dictionary<KeyValuePair<int, IEnumerable<int>>. 然后 Web api 就能够获取它。希望这对未来的读者有所帮助！
