"Program has more than one entry point defined" Can't find the other entry point.

[leod23]

I'm using a google spreadsheets API and WPF to create a budgeting app but I'm getting this error "Program has more than one entry point defined". Thank you to anyone who is able to help. Very new to programming so it's probably just me being dumb.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Sheets.v4;
using Google.Apis.Sheets.v4.Data;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;

namespace Budget_App
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        // If modifying these scopes, delete your previously saved credentials
        // at ~/.credentials/sheets.googleapis.com-dotnet-quickstart.json
        static string[] Scopes = { SheetsService.Scope.SpreadsheetsReadonly };
        static string ApplicationName = "Leo's Budget App";

        static void Main(string[] args)
        {
            UserCredential credential;

            using (var stream =
                new FileStream("credentials.json", FileMode.Open, FileAccess.Read))
            {
                // The file token.json stores the user's access and refresh tokens, and is created
                // automatically when the authorization flow completes for the first time.
                string credPath = "token.json";
                credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
                    GoogleClientSecrets.Load(stream).Secrets,
                    Scopes,
                    "user",
                    CancellationToken.None,
                    new FileDataStore(credPath, true)).Result;
                Console.WriteLine("Credential file saved to: " + credPath);
            }

            // Create Google Sheets API service.
            var service = new SheetsService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = ApplicationName,
            });

            // Define request parameters.
            String spreadsheetId = "1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms";
            String range = "Class Data!A2:E";
            SpreadsheetsResource.ValuesResource.GetRequest request =
                    service.Spreadsheets.Values.Get(spreadsheetId, range);

            // Prints the names and majors of students in a sample spreadsheet:
            // https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
            ValueRange response = request.Execute();
            IList<IList<Object>> values = response.Values;
            if (values != null && values.Count > 0)
            {
                Console.WriteLine("Name, Major");
                foreach (var row in values)
                {
                    // Print columns A and E, which correspond to indices 0 and 4.
                    Console.WriteLine("{0}, {1}", row[0], row[4]);
                }
            }
            else
            {
                Console.WriteLine("No data found.");
            }
            Console.Read();
        }
    }
}

 

[JohnH]

The entry point for a WPF app is generated and can be found under App.xaml, keep expanding in Solution Explorer until you see it.

Console.Reads/Writes and using a Main method would be highly unusual in a WPF app, that's something you would do in a Console app.

 

[leod23]

The entry point for a WPF app is generated and can be found under App.xaml, keep expanding in Solution Explorer until you see it.

Console.Reads/Writes and using a Main method would be highly unusual in a WPF app, that's something you would do in a Console app.

I tried to delete that Main entry point but it didn't work. Am I supposed to be using App.xaml for the actual programming? Which entry point do I delete?

 

[Skydiver]

Delete the Main() that you put in your MainWindow class. WPF is a GUI. Write GUI code.

 

[NoUserHere]

Am I supposed to be using App.xaml for the actual programming?

If you need to ask that question on here, you should be studying the getting started tutorials first.