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c# Smartsheet API: Can Not Get ColumnId

edited 12/09/19 in Archived 2017 Posts

I am trying to read data from Smartsheet using C# SDK. I can get sheet info but column details such as ColumnId are Null.

When I run the code below, I can get sheet and its columns. Bu only column name and type are filled, other properties of columns are Null. 

What am I doing wrong?

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Smartsheet.Api;

using Smartsheet.Api.Models;

using Smartsheet.Api.OAuth;

namespace SmartSheetTest


    class Program


        static void Main(string[] args)


            string token = "MY_TOKEN";

            long sheetid = MY_SHEET_ID;

            SmartsheetClient sc = new SmartsheetBuilder().SetAccessToken(token).Build();

            Sheet sheet = sc.SheetResources.GetSheet(sheetid, null, null, null, null, null, null, null);








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