Cannot correct get response if pass an array with Single array in a PostAsync call, C#

[jillzhoucnca]

This is a part in create Post request function:

        requestInfo.SetContentFromScalar(RequestAdapter, "application/json-patch+json", body.ToArray());

in the SetContentFromScalar, if our body is a single value like["abc"]. it cannot be passed successfully. Because of this part of code

 public void SetContentFromScalar<T>(IRequestAdapter requestAdapter, string contentType, params T[] items)
        {
            using var writer = getSerializationWriter(requestAdapter, contentType, items);
            if(items.Count() == 1)
                switch(items[0])
                {
                    case string s:
                        writer.WriteStringValue(null, s);
                        break;
                    case bool b:
                        writer.WriteBoolValue(null, b);
                        break;
                    case byte b:
                        writer.WriteByteValue(null, b);
                        break;
                    case sbyte b:
                        writer.WriteSbyteValue(null, b);
                        break;
                    case int i:
                        writer.WriteIntValue(null, i);
                        break;
                    case float f:
                        writer.WriteFloatValue(null, f);
                        break;
                    case long l:
                        writer.WriteLongValue(null, l);
                        break;
                    case double d:
                        writer.WriteDoubleValue(null, d);
                        break;
                    case Guid g:
                        writer.WriteGuidValue(null, g);
                        break;
                    case DateTimeOffset dto:
                        writer.WriteDateTimeOffsetValue(null, dto);
                        break;
                    case TimeSpan timeSpan:
                        writer.WriteTimeSpanValue(null, timeSpan);
                        break;
                    case Date date:
                        writer.WriteDateValue(null, date);
                        break;
                    case Time time:
                        writer.WriteTimeValue(null, time);
                        break;
                    case null:
                        writer.WriteNullValue(null);
                        break;
                    default:
                        throw new InvalidOperationException($"error serialization data value with unknown type {items[0]?.GetType()}");
                }
            else
                writer.WriteCollectionOfPrimitiveValues(null, items);
            Headers.Add(ContentTypeHeader, contentType);
            Content = writer.GetSerializedContent();
        }

If I provide more than one value, it can give us the correct response.
@andrueastman

[baywet]

The solution here is to break the set content from scalar method in 2 overloads:

• one that takes a single parameter
• one that takes an enumerable (no params)

On the generation front we probably don't need to call to array anymore for collections.

The same problem might also apply to set content from parsable.

@andrueastman can you fix it for dotnet please? Once it's done I'll create additional issues for other languages.

[andrueastman]

Thanks for handling this one @baywet