CODEWITHSUNDEEP
.net.net-coreasp.net-core-3.1
ravithejag
ravithejag

Reputation: 608

.NET Core API - Error converting value {null} to type 'System.Boolean'

Recently we have migrated our project from .NET Framework to .NET Core 3.1.

Suppose we have a property defined as bool, it's not accepting values as null and getting the following error when we try to call API from UI

Error converting value {null} to type 'System.Boolean'

Tried adding this in start up to fix the issue

services.AddControllers().AddJsonOptions(o =>
        {
            o.JsonSerializerOptions.PropertyNamingPolicy = null;
            o.JsonSerializerOptions.DictionaryKeyPolicy = null;
        });

Upvotes: 1

Views: 3544

Answers (1)

ravithejag
ravithejag

Reputation: 608

I have modified the start up and it worked for me. Thanks everyone for your suggestions

        services.AddControllers()
            .AddNewtonsoftJson(options =>
            {
                options.UseMemberCasing();
//This will help us in accepting null  values to other properties types
                options.SerializerSettings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore;
            });

Upvotes: 3

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