How can a linq query be converted to JavaScript array containing only values?-CodePudding

I have a JavaScript grid library (it creates a table on the page) that accepts a JavaScript array as input, for rendering in the grid. I'm not certain, however, how to convert a Linq-to-SQL query (against a SQL Server database) to a JavaScript array containing only values.

I tried this, but it included the table column names in the JSON key (and I don't want JSON anyway, I want a JavaScript string array, unless this can be converted to an array?):

JsonConvert.SerializeObject(query)

Example of the format I need to produce:

[1,2,3],[4,5,6]

Environment: .NET Core 3.1

edit: Here is a sample of what I've currently got, this returns the less than desirable JSON (due to the query results being so large, having a JSON key for very element is going to literally double the size of the query):

Devices Table

ID   Name
1    iPhone7
2    iPhone8
3    iPhone9

Needed Array (Note: no column names)

[1, "iPhone7"],[2, "iPhone8"],[3, "iPhone9"]

Current C# code in the controller method (returns undesirable key for every element currently)

var query = db.Devices;
var formattedResult = JsonConvert.SerializeObject(query);
return Ok(formattedResult);

CodePudding user response：

Technically, you could do this:

var query = db.Devices.AsEnumerable()
    .Select(d => new object[]{d.ID, d.Name});
var formattedResult = JsonConvert.SerializeObject(query);
return Ok(formattedResult);

But then the code on the other end of your request is going to have to translate all those arrays back into objects.

It's rarely worthwhile to complicate your model like this in order to optimize the size of your network traffic. If you're pulling enough items over the wire to make this a performance issue, you're likely to encounter a variety of other performance issues. I would first consider other options, like implementing paging.

CodePudding user response：

Did you try

var query = db.Devices.ToList(); 
var array = JArray.FromObject(query);
return Ok(formattedResult)