Integrating C# with Google Sheets: How to Begin?

Other Questions Google Sheets
1

I’m trying to connect my C# Windows Form app to Google Sheets. I’ve got the basics of reading and writing down, but I’m stuck on the initial setup. I’ve already set up the API, but I can’t figure out how to load a sheet. The documentation isn’t clear on this part.

Here’s what I’ve done so far:

using System;
using System.Windows.Forms;

namespace SheetConnector
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        private void ConnectButton_Click(object sender, EventArgs e)
        {
            // This is where I'm stuck
            // How do I load the Google Sheet here?
        }
    }
}

Can anyone point me in the right direction for loading a Google Sheet in C#? Once I get past this hurdle, I think I can handle the rest. Thanks!

2

hey pete, i’ve done this before. u need the Google.Apis.Sheets.v4 package. then u gotta do something like:\n\nvar service = new SheetsService(new BaseClientService.Initializer() {\n HttpClientInitializer = YourCredentialHere,\n ApplicationName = “YourApp”\n});\n\nvar request = service.Spreadsheets.Values.Get(spreadsheetId, range);\nvar response = request.Execute();\n\nthats the basic idea. good luck man!

3

I’ve had success integrating C# with Google Sheets using the Google.Apis.Sheets.v4 library. After setting up your credentials, you’ll need to initialize the SheetsService. Here’s a snippet to get you started:

private SheetsService GetSheetsService()
{
    string[] scopes = { SheetsService.Scope.Spreadsheets };
    var credential = GoogleCredential.FromFile("path/to/your/credentials.json").CreateScoped(scopes);
    return new SheetsService(new BaseClientService.Initializer()
    {
        HttpClientInitializer = credential,
        ApplicationName = "Your App Name"
    });
}

Then in your ConnectButton_Click method:

var service = GetSheetsService();
var spreadsheetId = "your-spreadsheet-id";
var request = service.Spreadsheets.Get(spreadsheetId);
var response = request.Execute();

This will load your spreadsheet. From there, you can access specific sheets and ranges as needed. Hope this helps you get over that initial hurdle!

4

As someone who’s integrated Google Sheets with C# before, I can share some insights. First, you’ll need to install the Google.Apis.Sheets.v4 NuGet package. Then, you’ll need to set up OAuth 2.0 credentials or a service account.

For OAuth, you’ll use a flow like this:

UserCredential credential;
using (var stream = new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
    credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
        GoogleClientSecrets.Load(stream).Secrets,
        new[] { SheetsService.Scope.Spreadsheets },
        "user", CancellationToken.None).Result;
}

var service = new SheetsService(new BaseClientService.Initializer()
{
    HttpClientInitializer = credential,
    ApplicationName = "Your App Name",
});

Then, to load a sheet:

string spreadsheetId = "your-spreadsheet-id";
string range = "Sheet1!A1:E";
SpreadsheetsResource.ValuesResource.GetRequest request =
    service.Spreadsheets.Values.Get(spreadsheetId, range);

ValueRange response = request.Execute();
IList<IList<object>> values = response.Values;

This should get you started. Remember to handle exceptions and implement proper error handling!