ASP.Net: Convert List of JavaScript object to generic List in C# and VB.Net

Hi samee,

Create a Generic List and read the txt or json file and insert in it.

The using the Generic List prepare the Json Array and finally, deserialize the json to Generic List of object.

Refer below example.

Namespaces

C#

using System.Collections.Generic;
using System.IO;
using System.Web.Script.Serialization;

VB.Net

Imports System.Collections.Generic
Imports System.IO
Imports System.Web.Script.Serialization

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    List<string> jsons = new List<string>();
    string[] files = Directory.GetFiles(Server.MapPath("~/Files"));
    foreach (string filePath in files)
    {
        jsons.Add(File.ReadAllText(filePath));
    }
    string json = string.Format("[{0}]", string.Join(",", jsons.ToArray()));
    JavaScriptSerializer serializer = new JavaScriptSerializer();
    List<MyClass> result = serializer.Deserialize<List<MyClass>>(json);
}

public class MyClass
{
    public string key { get; set; }
    public string category { get; set; }
    public string type { get; set; }
    public string name { get; set; }
    public string uom { get; set; }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim jsons As List(Of String) = New List(Of String)()
    Dim files As String() = Directory.GetFiles(Server.MapPath("~/Files"))
    For Each filePath As String In files
        jsons.Add(File.ReadAllText(filePath))
    Next
    Dim json As String = String.Format("[{0}]", String.Join(",", jsons.ToArray()))
    Dim serializer As JavaScriptSerializer = New JavaScriptSerializer()
    Dim result As List(Of [MyClass]) = serializer.Deserialize(Of List(Of [MyClass]))(json)
End Sub

Public Class [MyClass]
    Public Property key As String
    Public Property category As String
    Public Property type As String
    Public Property name As String
    Public Property uom As String
End Class

Screenshot