Hello! Guys, I would like to know why anonymous types in C# gets print with brakets?

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This is a question about the structure of C#.

I would like to know why an Anonymous Types in C#

var matrices = new[]
{

new {nombre="Madelson", Edad="20"},
new {nombre = "Mike" , Edad = "30"},
new {nombre = "Ana", Edad ="15"}

};

What I have tried:

They get print, with brakets:

{ nombre = Madelson, Edad = 20 }
{ nombre = Mike, Edad = 30 }
{ nombre = Ana, Edad = 15 }

Do you guys know why?

Thanks in advance :)

Posted 14-Jun-20 6:28am

Member 14836444

Updated 14-Jun-20 6:32am

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George Swan 15-Jun-20 1:36am

It's because, the default ToString method gets called for the anonymous type. I stand to be corrected on this, but my understanding is that the ToString method cannot be overridden with anonymous types. However, you can print out the array something like this
foreach(var matrix in matrices)
{
Console.WriteLine($"Name is {matrix.nombre} Age is {matrix.Edad}");
}

Maciej Los 15-Jun-20 3:28am

Sounds like an answer.

Maciej Los 15-Jun-20 3:27am

What method do you use to print data? Improve your question!

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Richard MacCutchan · Answer 1 · 2020-06-14T06:32:00

Solution 1

See Anonymous Types - C# Programming Guide | Microsoft Docs[^]

Posted 14-Jun-20 6:32am

Richard MacCutchan

Comments

Member 14836444 14-Jun-20 19:49pm

I have read the documentation, what I mean is when you print them, they get printed with the brakets as well. For example:

var matrices = new[]
{

new {nombre="Madelson", Edad="20"}

};

The output on the console is:
{ nombre = Madelson, Edad = 20 }

Richard MacCutchan 15-Jun-20 4:11am

That looks correct to me. If you print a single item the default is to display exactly what is contained in it. If the braces were not included then it would not be clear that the item is a single object with those properties.