Combined Variable Question

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Combined Variable Question

Grime 796

I don't yet know enough about Xamarin terminology to probably make sense, but I was doing OK following the James Montemagno YouTube video, "https://www.youtube.com/watch?v=XFP8Np-uRWc" until I had to create a "collective variable" (?)!

What might I be doing wrong?/api/attachments/88628-clipboard01.png?platform=QnA

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Answer 1

Anonymous

Hello,

Welcome to our Microsoft Q&A platform!

First of all, did you create model class like following code?

   public class Operator  
       {  
           [PrimaryKey, AutoIncrement]  
           public int Id { get; set; }  
           public string OpName { get; set; }  
           public string OpPhone { get; set; }  
           public string OpEmail { get; set; }  
       }

When you create new object, you should write following code.

   var operators = new Operator()  
               {  
                   OpName = "Opname1",  
                   OpPhone = "O12345566",  
                   OpEmail = "******@test.com"  
     
               };

Best Regards,

Leon Lu

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Grime 796

@Anonymous Yes to class Operators
using System;
using System.Collections.Generic;
using System.Text;
using SQLite;

namespace HandsFreeNotes.Model  
{  
    class Operators // Because Operator is a reserved word  
    {  
        [PrimaryKey, AutoIncrement]  
        public int ID { get; set; }  
        [Indexed]  
        public string OpName { get; set; }  
        public string OpPhone { get; set; }  
        public string OpEmail { get; set; }  
    }  
}

Anonymous

2021-04-16T14:25:38.58+00:00

When you create new Operators, which error did you met? Create new Operators like my above code, is that not work?
Grime 796 Reputation points

2021-04-16T14:29:07.713+00:00

As to "When you create new object, you should write following code." How is that following what Montemagno was doing? OK, it reduces my error count...
Grime 796 Reputation points

2021-04-16T14:30:44.193+00:00

So I am left with one error:
public static async Task<IEnumerable<Operators>>GetOperators()

Where do i declare GetOperators.
Anonymous

2021-04-16T14:35:39.497+00:00

When you getOperators(); change the from public static async Task<IEnumerable<Operators>>GetOperators() to public static async Task<List<Operators>>GetOperators() is better, because var result = await query.ToListAsync(); this result type is List.
Grime 796 Reputation points

2021-04-17T07:24:35.397+00:00

Still having an issue trying to establish the GetOperators list.

The Quick Actions and Refactorings dialog suggests: Change Signature... and Extract Base Class...
I think I'm in well over my head.
Anonymous

2021-04-19T07:40:28.317+00:00

Please delete the async and await in your method name and method, because you used ToListAsync() method.

If you still cannot fix this error. Could you share a demo to me? I can help you to fix this issue.

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Combined Variable Question

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