json.net

问题 Follwoing this post, I have a SQL query that returns the following table: team (json) "{"Name":"TeamA","Players":[{"Name":"CCC"},{"Name":"BBB"}]}" "{"Name":"TeamB","Players":[{"Name":"AAA"},{"Name":"DDD"}]}" I need to aggregate this into JSON to use in my app. I'm using the following: SELECT json_agg(u) FROM (SELECT DISTINCT ON (t.team->>'Name') t.team FROM matches m, json_array_elements(m.match->'Teams') t(team) ORDER BY t.team->>'Name', m.id DESC) AS u Which returns: "[{"team":{"Name":

问题 I want to serialize a Dictionary<string, object> that may contain System.Drawing.Color values or other types as values. I create a serializer with TypeNameHandling.Auto , and this works for most classes, but not Color . Example code: (DotNetFiddle: https://dotnetfiddle.net/UvphQO) public class Program { class A { } class B { } public static void Main() { Dictionary<string, object> dict = new Dictionary<string, object>(); dict["Foo"] = new A(); dict["Bar"] = new B(); dict["Baz"] = new object()

问题 I see that JSON.NET has a DateTime converter: string javascriptJson = JsonConvert.DeserializeObject(entry, new JavaScriptDateTimeConverter()); However I don't have a JSON object, I simply have a string: /Date(1276146000000-0500)/ I could create an object, add the date, then parse it, but this seems common enough that there should be a way to do this in a single line. Is there anything out there? 回答1: The quotes around the date string are required. Also, the returned value is a DateTime , not

问题 I'm trying to serialize objects as JSON with MVC4 WebAPI (RTM - just installed VS2012 RTM today but was having this problem yesterday in the RC) and I'd like for all nulls to be rendered in the JSON output. Like this: [{"Id": 1, "PropertyThatMightBeNull": null},{"Id":2, "PropertyThatMightBeNull": null}] But what Im getting is [{"Id":1},{"Id":2}] I've found this Q/A WebApi doesnt serialize null fields but the answer either doesn't work for me or I'm failing to grasp where to put the answer.

问题 I came across this issue a while back when I was testing some HTML forms. The Maximum number of digits in JavaScript Number with a decimal point is only 16 I have tried the following var x = 12345678912345.6789 x is 12345678912345.68 - 16 Digits only var x = 123456789123.6789 x is 123456789123.6789 - 16 Digits only new Number(12345678912345.6789) 12345678912345.68 - 16 Digits only new Number(123456789123.6789) 123456789123.6789 - 16 Digits only if you count the total digits, they are 16. If

问题 I came across this issue a while back when I was testing some HTML forms. The Maximum number of digits in JavaScript Number with a decimal point is only 16 I have tried the following var x = 12345678912345.6789 x is 12345678912345.68 - 16 Digits only var x = 123456789123.6789 x is 123456789123.6789 - 16 Digits only new Number(12345678912345.6789) 12345678912345.68 - 16 Digits only new Number(123456789123.6789) 123456789123.6789 - 16 Digits only if you count the total digits, they are 16. If

问题 I want to convert a JSON response to an equivalent XML document but while doing so, I also want to preserve current date and time format along with the offset e.g., DateTime in JSON is "2019-10-25T07:00:00-05:00" and after conversion I want it to remain the same. But after conversion into XML, the DateTime value becomes "2019-10-25T08:00:00-04:00" I tried to search about it in Microsoft docs but I didn't find my answer for the following questions: How to determine the time zone of a given

问题 There is a large JSON file (about a thousand lines). The task is to update existing JProperties, or add new JProperties in a specific location in the structure. The location of the new texts are based on the JToken.Path property. For example, this is the start of the JSON: "JonSnow": { "Direwolf": { "Name": "Ghost", "Color": "White", } } "DanaerysTargaryen": { "Dragons": { "Dragon1": { "Name": "Drogon", } } "Hair": { "Color": "White" } } Now the JSON must be updated using a given list of

问题 I have a json file which has random names in roots but same structure in child elements. I would like to get all the child elements in an array or a list. Sample json file : { "-LeHl495vL6vh-8CaLbD":{ "apiKey":"sr-tr-137-beea04e44cb452ba0da0ca090b7e61b4ec6ffc69" }, "-LeHl6jrhUEMb7slZcpB":{ "apiKey":"sr-tr-137-aef7a23095c0c7baef1ef681bdd8bf9756ac2a17" } } I have tried these classes but could not do it. public class RequestedReport { public Dictionary<string, List<ReportData>> ReportDatas { get

问题 I am getting the "Operation could destablize the runtime exception". I goggled quite a bit, looks like exception has to do with conflicting assemblies being loaded at runtime. So, here are couple of things the same source code works in my colleagues machine. I looked and searched for each reference to NewtonSoft.Json.dll and it seems like its coming from a same assembly. (I think this would not be a problem as it is working in other people machine). I am using Raven which references