How to parser JavaScript multidimensional array to c# array?

Question

Example of JavaScript arrays:

var array_1 = [["string 1", 2013, "string 2"], "string 3", ["string 4", , "string 5"]]; /* array_1[0][2] = "string 2" */ var array_2 = [1, , ["string 1", "string 2"]]; /* array_2[0][0] = 1 */ 

I need to parse JS arrays like it to c#jagged array or any other object that can access each child string by index easy, by function, with:

• number become string (1 =>"1")
• null become "" (string with length = 0).

Can you help me how to do this? Thank you very much!

Answer 1

using Json.NET

// using using Newtonsoft.Json.Linq; string JSarray_1 = @"[[""string 1"", 2013, ""string 2""], ""string 3"", [""string 4"", , ""string 5""]]"; JObject j = JObject.Parse("{\"j\":" + JSarray_1 + "}"); MessageBox.Show((string)j["j"][0][2]); // "string 2" 

Answer 2

See the C# language documentation: "Multidimensional Arrays (C#)"

string[,] items = new string[,] {{"string 1","string 2"},...}; 

Answer 3

I think what TuyenTk is looking for, and emigue is trying to describe is to use a library which does the "magic"(=parsing)

I'd recommend JSON.Net since it's the one I use all the time - but I guess there are plenty of these out there.

The linked page also includes some simple examples on how to use it.

About replacing null with emptystring:

var myValue = origValue ?? String.Empty; 

if origValue is null myValue will be set to "", otherwise the expression will evaluate to origValue;

For further information on "??", or the "null-coalescing operator" as it's called, see the doc

Answer 4

As Jagged Arrays

string[][] items = new string[3][]; items [0] = new string[2]; items [1] = new string[1]; items [2] = new string[2]; items[0][0] = "string1"; items[0][1] = "string3"; items[1][0] = "string4"; items[2][0] = "string5"; items[2][1] = "string6"; 

OR

string[][] items = new string[][] { new string[] {"string1", "string3"}, new string[] {"string4"}, new string[] {"string5", "string6"} }; 

Answer 5

If you need parse javascript arrays to c# arrays, You can serialize Javascript arrays to JSON and then deserialize JSON to C# array.

Previously, you need to do one transformation: replace "" by null in Javascript array representation as string.

Then, you can make something like this:

var JSArrayString = @"{"array_1": [["string 1", 2013, "string 2"], "string 3", ["string 4", null, "string 5"]]}"; var CSharpDict = SomeJSONLibrary.Deserialize(JSString); var CSharpArray = CSharpDict["array_1"]; var myItem = CSharpArray[0][2];