JSON string to CSV and CSV to JSON conversion in c#

Question

I\'m working with JSON/CSV files in my asp.net web API project and tried with CSVHelper and ServiceStack.Text libraries but couldn\'t make it work.

The JSON file con

Answer 1

public void Convert2Json() 
        { 
            try 
            { 
                if (FileUpload1.PostedFile.FileName != string.Empty) 
                { 
                    string[] FileExt = FileUpload1.FileName.Split('.'); 
                    string FileEx = FileExt[FileExt.Length - 1]; 
                    if (FileEx.ToLower() == "csv") 
                    { 
                        string SourcePath = Server.MapPath("Resources//" + FileUpload1.FileName); 
                        FileUpload1.SaveAs(SourcePath); 
                        string Destpath = (Server.MapPath("Resources//" + FileExt[0] + ".json")); 

                        StreamWriter sw = new StreamWriter(Destpath); 
                        var csv = new List(); 
                        var lines = System.IO.File.ReadAllLines(SourcePath); 
                        foreach (string line in lines) 
                            csv.Add(line.Split(',')); 
                        string json = new 
                            System.Web.Script.Serialization.JavaScriptSerializer().Serialize(csv); 
                        sw.Write(json); 
                        sw.Close(); 
                        TextBox1.Text = Destpath; 
                        MessageBox.Show("File is converted to json."); 
                    } 
                    else 
                    { 
                        MessageBox.Show("Invalid File"); 
                    } 

                } 
                else 
                { 
                    MessageBox.Show("File Not Found."); 
                } 
            } 
            catch (Exception ex) 
            { 
                MessageBox.Show(ex.Message); 
            } 
        }