How do I replace a value in a collection list at the same location?

Question

1.00/5 (1 vote)

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List<Animals> alumnos = new List<Animals>();

 class Animals{ 
int Idanimals  { get; set; }
int Type { get; set; }
}

0 = cat
1 = dog
2 = bird

animals[2] = "Dog";

Then upload them to a DVgrid
Help me!!!!

What I have tried:

animals[2] = "Dog";

But I get error
CS0029 C # Can not implicitly convert type 'string' to 'Project.Animals'

Posted 24-Aug-17 5:44am

Rodrigo Alex Rodriguez

Updated 24-Aug-17 5:58am

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BillWoodruff 24-Aug-17 14:52pm

Your definition of 'Animals contains two integer Properties: what makes you think you can use a string ?

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Richard MacCutchan · Answer 1 · 2017-08-24T05:58:00

Solution 1

C#

animals[2] = "Dog";

But (according to the compiler) you defined animals as a collection of Animals, not a collection of strings. So you need to create a new Animal and assign that to your list, like:

C#

Animals newDog = new Animals(1, "Dog");
animals[2] = newDog;

Posted 24-Aug-17 5:58am

Richard MacCutchan

Comments

BillWoodruff 24-Aug-17 14:56pm

The OP's code won't take a string in the ctor for 'Animals; either some information is missing ... or ?

Richard MacCutchan 24-Aug-17 15:17pm

Yes, I know; I was just trying to show the difference between string and object, since the Animals class is a bit pointless.

Richard MacCutchan 24-Aug-17 15:25pm

Yes, I am aware of that.

BillWoodruff 25-Aug-17 10:08am

With this type of confused question, I think it best to wait for some clarification from the OP.

Richard MacCutchan 25-Aug-17 10:12am

I usually find it's best not to hold your breath while waiting for such clarification. :)

Rodrigo Alex Rodriguez 29-Aug-17 8:59am

What is the doubt
And tried this solution but it does not work

https://stackoverflow.com/questions/5747401/how-to-replace-value-in-list-at-same-collection-location

Richard MacCutchan 30-Aug-17 2:37am

if you have a problem with code from StackOverflow then you need to post your question there.

But I have shown you above what is wrong with your reference. If you do not understand the basics of classes, objects and references, then I suggest you go back to your C# notes/manuals.